Document k6zj3m9146X0d6OYEjqO92VLy
EMISSION RECOVERY SYSTEM ABERDEEN CHEMICAL PLANT OPERATING MANUAL July 25, 1984
Revised
Steve C. Hillman Process Engineer
Approved By: R. A. Frohreich
1
Chief Process Engineer
VAB.0001134982
I
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
I. INTRODUCTION
The Emission Recovery System was installed as a part of the Aberdeen Chemical Plant*s overall program to achieve compliance with the promul gated regulations of the Environmental Protection Agency regarding emissions of vinyl chloride monomer. These regulations require that fugitive emissions be collected and contained and that any vent to the atmosphere be less than 10 ppm vinyl chloride.
Various waste water and vapor vent streams in the Aberdeen Chemical Plant contain high concentrations of VCM. The waste water from the process is being collected and steam stripped to remove VCM. EPA regu lations currently require that this water to contain 10 ppm or less VCM.
Also EPA regulations require that the VCM railcar unloading lines con tain less than 0.13 ft. VCM vapor at 20C and 29.92 in. Hg. To do this requires pulling a vacuum of 10 in. Hg. on these unloading lines after the car has been unloaded.
The EPA regulations which limit VCM emissions to 10 ppm or less in exhaust gas vents and in process waste water have required that all VCM/ PVC plants collect and contain these various sources. The Emission Recovery System is a combination vacuum/compression unit which collects VCM vapors from the following sources in the Aberdeen Chemical Plant:
1. Batch Water Strippers 2. VCM Tank Farm 3. VCM Railcar Unloading Lines 4. Vessel Purge System
The vapors are subsequently condensed in the Emission Recovery System
recovery condenser and liquid VCM is transferred to the old module
recovered VCM receivers.
' y
This operating manual will provide instructions to operate the Emission Recovery System in order to achieve emission levels within EPA limits.
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EMISSION RECOVERY SYSTEM ABERDEEN CHEMICAL PLANT OPERATING MANUAL
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II. GENERAL DESCRIPTION
Please refer to the P & I diagram (Drawing MS-9630-42-1D) in section VII of this manual for the following description.
The Emission Recovery System is designed to collect VCM vapors from the following sources:
1. Batch Water Strippers 2. VCM Tank Farm Area 3. Vessel Purge System
The VCM concentration in the discharge streams from these areas is required to be 10 ppm or below.
Vapors from the vessel purge system and the batch water strippers first enter the Emission Recovery System through the inlet condenser EA-701. This heat exchanger is used to condense steam out of the vapor stream so that the vacuum pumps and compressors are not overloaded. The exchanger also cools the VCM gas stream and allows the vacuum pumps and compressors to operate at a lower temperature. The condensate exits EA-701 and gravity flows into T-701. With the drain pump, P-701, in auto, when the water level in T-701 reaches LS-701B, the middle level switch, CV-701 opens, the drain pump starts, and liquid is pumped from T-701 to the batch water strippers. CV-701 will close and stop the drain pump when the water level in T-701 decreases to the lower level switch LS-701A. The upper level switch LS-701C will trip an alarm on the local control panel, shutdown the ERS, and activate a shutdown alarm in the vinyl control room.
VCM vapors from the tank farm area enter the Emission Recovery System through CV-1 and flow directly into T-701. Also the recycle VCM, which is used to control T-701 low pressure, enters T-701 at the same point.
i
PIC-701 is the low pressure controller for T-701 and is located on the local instrument panel. The setpoint should be 15 in. Hg. vacuum. When T-701 is pulled to 15 in Hg vacuum, PIC-701 allows VCM vapor from the old module large recovery system collect tank to bleed into T-701.
Two new vacuum pumps, P-703 and P-704, and two new compressors, C-705 and C-706, have replaced the old vacuum pumps and compressors. One vacuum pump and one compressor will operate at all times. To insure sufficient vacuum in the emission recovery system, instrumentation is provided to automatically start/stop the second vacuum pump and com pressor as needed. Upon high system pressure (5 in. Hg. vacuum), high pressure switch, PSH-301, on tank T-701, will start the vacuum pump and compressor not on stream. As the system pressure is reduced to setpoint (10 in. Hg. vacuum), low pressure switch, PSL-301, will stop the vacuum pump and compressor that were started due to high system
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EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
II. GENERAL DESCRIPTION (Cont.)
Vapors exit T-701 and flow through pressure control valve, PCV-301, into vacuum pumps P-703 and P-704. Vapors from these vacuum pumps flow into T-702 where the seal water from the vacuum pumps is separated from the vapor stream. The seal water is filtered, cooled, and pumped back to the vacuum pumps and compressors.
T-702 level control is set up to both drain and makeup water to T-701 as needed. Excess water is drained through the seal water pump and CV-311 and is pumped to the batch water strippers by drain pump P-701. With drain pump P-701 in auto, LS-702C will open CV-311, start the drain pump, and activate a time delay relay which will close CV-311 and stop the drain pump after approximately 20 seconds. If the time delay fails LC-702B will stop the drain pump and shut CV-311. LS-702D is the high level switch which will trip an alarm on the local control panel, shutdown the Emission Recovery System, and activate a shutdown alarm in the vinyl control room exactly as LS-701C did on T-701. When the level in T-702 drops below LS-702A an on/off water makeup valve, CV-702, will open to add HPSW to T-702. When the level rises to LS-702B, CV-702 will close.
Liquid drained from either T-701, T-702, or T-703 will first pass through DST-301 to strain out any solids that might plug the drain pump.
VCM vapors exit T-702 and flow into either C-705 or C-706. Vapors are compressed to approximately 80 PSIG and flow into T-703. Here seal water from the compressors is separated from the vapor stream.
T-703 has a new level indicator controller, LIC-301, which controls the level in T-703 by draining excess liquid to T-702 through LCV-301. High level switch, LSH-703C, will trip an alarm on the local control panel, shutdown the Emission Recovery System, and activate a shutdown alarm in the vinyl control room just as LS-701C did.
*t
Two interstage control loops are provided in the system to control the interstage pressure between the vacuum pumps and compressors.
The first control loop is a feed back control loop to prevent high pressure (greater than 5 psig) at the compressor(s) inlet. Pressure sensing element, PT--301, on tank T-702 senses the pressure and trans mits a signal to pressure indicating controller, PIC-301, to create a response to the high interstage pressure. As the pressure increases, the response of PIC-301 is to close PCV-301, therefore, restricting vapor flow from T-701 and creating a false vacuum at the vacuum pump inlet. This allows the compressors to essentially "catch up" and the pressure at the inlet of the compressors will go down. PT-301 will sense the pressure reduction and allow PCV-301 to open allowing normal flow through the system.
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MISSION RECOVERY SYSTEM ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
II. GENERAL DESCRIPTION (Cont.)
The second control loop is also a feed back control loop to prevent low pressure at the compressor(s) inlet (pressures less than 1 psig). Pressure transmitter* PT-301, senses the low pressure and sends a signal to pressure indicating controller, PIC-302, which controls PCV-302 located in a pressure equalization line from T-703 to T-702. PCV-302 is normally closed, and the response to the signal from PT-301 is to open. As PCV-302 opens, vapor flows from the discharge of the compressors to the inlet of the compressors. The vapor flow from the compressor discharge to the compressor inlet will continue until an increase in pressure is sensed by PT-301. PT-301 will transmit a signal to PIC-302, and PCV-302 will close. The increase in interstage pressure indicates matched flow between the vacuum pumps and compres--
Pressure controller PIC-301 and PIC-302 are located on the local con trol panel.
From T-703 the compressed VCM flows into the new Emission Recovery System VCM condenser EA-301, located on the roof of V-ll near inlet condenser EA-701. The vapor is condensed in EA-301 and transferred to the old module RVCM receivers. Vapor can also be transferred to the inlets of the old module large recovery system condensers, if needed.
The seal water system provides compressant
water to the vacuum
pumps and compressors. The system consists of a seal water pump and
, a filter and spare, and three heat exchangers to cool the seal
water. It is designed to run on one seal water pump which will provide
60 GPM to the recovery system* Each vacuum pump requires 12 GPM and
each compressor 18 GPM. The seal water will be transferred from T-702
by NP-707 or 708 and enter FD-301 where any trash or resin will be
filtered out. Pressure entering .the filter will be approximately 135
PSIG, and normally the pressure will drop 2-3 PSI at the outlet. The
filter cartridges should be changed when the pressure drop exceeds 5
PSI.
In addition to the regular compressant seal water provided by the Emission Recovery System seal water system, compensated seal water is added to the Emission Recovery System compressors when running to increase the discharge pressure that the compressors are able to attain to 100 PSIG. As the compressor discharge pressure increases the seal water flows from T-703 through a restriction orifice and on/off control valve to the compressor.
The existing three seal water coolers have been repiped so that they can be operated in parallel as needed to provide sufficient cooling. The seal water temperature control will be maintained by the existing temperature controller on the cooling water return line.
4 VAB.0001134986
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EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
II. GENERAL DESCRIPTION (Cont.)
The V-ll hydroquinone system is tied into the Emission Recovery System seal water system at tank T-702. Hydroquinone is continuously injected into the Emission Recovery System seal water by the V-ll hydroquinone system diaphram pump. The injection rate should be set at 0.17 GPH and should be checked once per shift.
The plant HPSW system provides the mechanical seal purge water for the vacuum pump and compressors. This water enters the Emission Recovery System in a header at about 220 PSIG and enters individual pressure regulators for each vacuum pump and compressor where the pressure is dropped to 125 PSIG. Pressure on the seals and flow through them are controlled by manual valves on the seal outlets.
Fresh air stations and utilities stations are located on the north side of the old blast wall on the first and second floor of V-ll. The utilities stations consist of 150 PSIG steam and 220 PSIG HPSW.
The electrical circuit breakers for the Emission Recovery System are in the breaker room located on the second floor of the chiller build ing. All breakers are labeled.
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VAB.0001134987
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EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
III. INTERLOCK DESCRIPTION
Vacuum Pumps and Compressors
1. Vacuum Pumps- The valve(s) on the inlet manifold(s), and the valve(s) on the compressant seal water line(s) will not open until the vacuum pumps, P-703 and P-704, are started as follows:
Valve CV-302 will open one second after P-703 has started and CV-301 will open 5 seconds after P-703 started. When P-703 stops running, CV-301 and CV-302 will close.
Valves CV-304 will open one second after P-704 has started and CV-303 opens 5 seconds after P-704 started. When P-704 stops run ning, CV-303 and CV-304 will close.
The vacuum pumps cannot start until the compressors are running.
2. Compressors- The valve(s) on the inlet manifold(s), and the valve(s) on the compressant seal water line(s), and the valve(s) on the compensated seal water lines will not open until the compressors, C-705 and C-706, are started as follows:
Valve CV-306 will open one second after CV-705 has started and CV-305 & CV-309 open 5 seconds after C-705 starts. When C-705 stops running, CV-305, CV-306, and CV-309 will close.
Valve CV-308 will open one second after C-706 has started and CV-307 & CV-310 open 5 seconds after C-706 starts. When C-706 stops running, CV-307, CV-308, and CV-310 will close.
3. Normally one vacuum pump>and compressor will run at all times. When placed in auto the second vacuum pump and compressor will start/stop as needed according to PSH-301 and PSL-301 located on T-701.
4. The vacuum pumps and compressors will not start unless one of the seal water pumps, P-707 or P-708, is running.
5. Drain pump P-701 must be in auto before T-701 and T-702 will auto matically drain on high level.
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EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
IV. EQUIPMENT LIST
Item
Conoco Number
Service
A. Compressors C-705
C-706
72-993 72-994
NASH 1253C Compresses VCM Vapors, 100 HP
NASH 1253C Compresses VCM Vapors, 100 HP
B. Filter FD-301
FD-301S
64-050 64-051
Commercial, Filters Seal Water
Commercial, Filters Seal Water
C. Heat Exchangers EA-701 EA-709A
EA-709B
EA-709C
EA-301
55-002 55-004 55-311 55-376
Steam Condenser Doyle & Roth, Seal Water
Cooler Doyle & Roth, Seal Water
Cooler Doyle & Roth, Seal Water
Cooler VCM Condenser
D. Pumps P-701
72-209
Durco, T-701 Drain Pump
P-707
P-708
E. Vacuum Pumps P-703 P-704
72-567
72-568
* fr
72-991 72-992
Gould, Seal Water Pump, 40 HP
Gould, Seal Water Pump, 40 HP
NASH CL-402, 40 HP NASH CL-402, 40 HP
F. Vessels T-701 T-702 T-703
G. Strainer DST-301A DST-301B
45-026 45-308 45-342
*
77-078 77-079
Inlet K.0. Pot Vacuum Pump Seal Water Se Compressor Seal Water Sep
Andale Strainer Andale Strainer
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VAB.0001134989
EMISSION RECOVERY SYSTEM
*
ABERDEEN CHEMICAL PLANT
V. INSTRUMENT LIST
OPERATING MANUAL
Item No*
Description
Service
CV-301 CV-302
CV-303 CV-304
CV-305 CV-306
CV-307 CV-308
CV-309
CV-310
CV-311
CV-1 CV-601 CV-701
On/Off Control Valve Control Valve
On/Off Control Valve Control Valve
On/Off Control Valve Control Valve
On/Off Control Valve Control Valve
On/Off Control Valve
On/Off Control Valve
On/Off Control Valve
On/Off Control Valve On/Off Control Valve On/Off Control Valve
Vacuum Pump P-703 Process Inlet Vacuum Pump P-703 Compressant
Seal Water Flow Control Vacuum Pump P-704 Process Inlet Vacuum Pump P-704 Compressant
Seal Water Flow Control Compressor C-705 Process Inlet Compressor C-705 Compressant Seal
Water Flow Control Compressor C-706 Process Inlet Compressor C-706 Compressant Seal
Water Flow Control Compressor C-705 Compensated Seal
Water Compressor C-706 Compensated Seal
Water T-702 Drain To Batch Water
Stripper Isolation Valve For VCM Tank Farm Isolation Valve For BWS T-701 Drain Valve
FCV-301 FCV-302 FCV-303 FCV-304
Control Valve Control Valve Control Valve Control Valve
Vacuum Pump P-703 Compressant Seal Water
Vacuum Pump P-704 Compressant Seal Water
Compressor C-705 Compressant Seal Water
Compressor C-706 Compressant Seal Water
FI-301 FI-302 FI-303 FI-304 FI-305 FI-306 FI-307 FI-308 FI-309
FI-310
Rotameter Rotameter Rotameter Rotameter Rotameter Rotameter Rotameter Rotameter Rotameter
Rotameter
Vacuum Pump P-703 Mech Seal Flush Vacuum Pump P-703 Mech Seal Flush Vacuum Pump P-704 Mech Seal Flush Vacuum Pump P-704 Mech Seal Flush Compressor C-705 Mech Seal Flush Compressor C-705 Mech Seal Flush Compressor C-706 Mech Seal Flush Compressor C-706 Mech Seal Flush Seal Water Pump P-707 Mech Seal
Flush Seal Water Pump P-708 Mech Seal
Flush
FIC-301 FIC-302 FIC-303 FIC-304
Flowing Indicating Controller
Flowing Indicating Controller
Flow Indicating Controller
Flow Indicating Controller
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P-703 Compressant Seal Water
P-704 Compressant Seal Water
C-705 Compressant Seal Water
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C-706 Compressant Seal Water VAB.0001134990
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EMISSION RECOVERY SYSTEM ABERDEEN CHEMICAL PLANT OPERATING MANUAL
fx 4
V. INSTRUMENT LIST (Cont.)
Item No.
Description
Service
LA-701 LA-702 LA-703
LCV-301 LCV-701
High Level Alarm High Level Alarm High Level Alarm
Level Control Valve Level Control Valve
T-701 High Level T-702 High Level T-703 High Level
T-703 Level Control T-702 Low Level Makeup
LG-701 LG-702 LG-703
LIC-301
LS-701A LS-701B LS-701C LS-702A LS-702B LS-702C LS-702D LS-703C
PAH-301 PA-7 01 PA-702 PA-703
PCV-301 PCV-302 PCV-303 PCV-304 PCV-305 PCV-306 PCV-701
PG-301 PG-302 PG-303 PG-304 PG-305 PG-306 PG-307
Level Gauge Level Gauge Level Gauge
T-701 T-702 T-703
Level Indicating Controller
T-703 Level Control
Level Switch Level Switch Level Switch Level Switch Level Switch Level Switch Level Switch Level Switch
T-701 Low Level T-701 High Level T-701 High-High Level T-702 Low Level T-702 Middle Level T-702 High Level T-702 High-High Level T-703 High-High Level
High Pressure Alarm High Pressure Alarm High Pressure Alarm High Pressure Alarm
T-701 High Pressure T-701 T-702 T-703
Pressure Control Valve Pressure Control Valve Pressure Regulator Pressure Regulator Pressure Regulator Pressure Regulator Pressure Control Valve
Interstage Pressure Control Valve Interstage Pressure Control Valve P-703 Mech Seal Water Pressure P-704 Mech Seal Water Pressure C-705 Mech Seal Water Pressure C-706 Mech Seal Water Pressure T-701 Low Pressure Control Valve
Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge
P-703 Process Inlet P-703 Process Outlet P-703 Mech Seal Flush Outlet P-703 Mech Seal Flush Outlet P-703 Mech Seal Flush Inlet P-704 Process Inlet P-704 Process Outlet
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VAB.0001134991
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT OPERATING MANUAL
V. INSTRUMENT LIST (Cont.)
Item No.
Description
PG-308 PG-309 PG-310 PG-311 PG-312 PG-313 PG-314 PG-315 PG-316 PG-317 PG-318
Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge
PG-319 PG-320 PG-321 PG-322 PG-323 PG-324 PG-325
Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge
PG-326
Pressure Gauge
PG-327
Pressure Gauge
PG-328
Pressure Gauge
PG-329 PG-330 PG-331 PG-701 PG-702 PG-703
Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge Pressure Gauge
t1
PIC-301 PIC-302 PIC-701
Pressure Indicating Controller
Pressure Indicating Controller
Pressure Indicating
PR-301
Pressure Recorder
Service
P-704 Mech. Seal Flush Outlet P-704 Mech. Seal Flush Outlet P-704 Mech. Seal Flush Inlet C-705 Process Inlet C-705 Process Outlet C-705 Mech. Seal Flush Outlet C-705 Mech. Seal Flush Outlet C-705 Mech. Seal Flush Inlet C-706 Process Inlet C--706 Process Outlet C-706 Mech Seal Flush Outlet
C-706 Mech Seal Flush Outlet C-706 Mech Seal Flush Inlet P-703 Compressant Seal Water P-704 Compressant Seal Water C-705 Compressant Seal Water C-706 Compressant Seal Water Existing Mech Seal Water Filter
Inlet Existing Mech Seal Water Filter
Outlet Existing Mech Seal Water Filter
Inlet Existing Mech Seal Water Filter
Outlet P-707 Discharge P-708 Discharge FD-301 and FD-301S Outlet T-701 T-702 T-703
Interstage High Pressure Controller
Interstage Low Pressure Controller
T-701 Low Pressure Control Controller
T-701 Pressure Recorder
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VAB.0001134992
EMISSION RECOVERY SYSTEM ABERDEEN CHEMICAL PLANT OPERATING MANUAL
V. INSTRUMENT LIST (Cont.)
Item No.
Description
Service
PS-701 PS-702 PS-703
High Pressure Switch High Pressure Switch High Pressure Switch
T-701 T-702 T-703
PT-301
Pressure Transmitter
Secondary Vacuum Pump And Compressor Start/Stop
RD-307 RD-703 RD-704 RD-705 RD-706
Rupture Disc Rupture Disc Rupture Disc Rupture Disc Rupture Disc
EA-301 Process Outlet P-703 Process Outlet P-704 Process Outlet C-705 Process Outlet C-706 Process Outlet
RO-301 RO-302
Restriction Orifice Restriction Orifice
C-705 Compensating Seal Water C-706 Compensating Seal Water
SV-301 SV-302 SV-303 SV-304 SV-305 SV-306 SV-307 SV-701 SV-702
SV-703
Relief Valve Relief Valve Relief Valve Relief Valve Relief Valve Relief Valve Relief Valve Relief Valve - 150 PSIG Relief Valve - 150 PSIG Relief Valve - 150 PSIG
P-703 Process Outlet P-704 Process Outlet C-705 Process Outlet C-706 Process Outlet FD-301 Process Inlet FD-301S Process Inlet EA-301 Process Outlet T-701 T-702 T-703
SW-301 SW-302 SW-303 SW-304 SW-305 SW-306 SW-701
Hand/Off/Auto Switch > Hand/Off/Auto Switch Hand/Off/Auto Switch Hand/Off/Auto Switch On/Off Switch On/Off Switch Hand/Off/Auto Switch
P-703 Start/Stop P-704 Start/Stop C-705 Start/Stop C-706 Start/Stop P-707 Start/Stop P-708 Start/Stop P-701 Start/Stop
TA-70 2 TA-703
High Temperature Alarm T-702 High Temperature Alarm T-703
TCV-701 TCV-709
Temp. Control Valve Temp. Control Valve
EA-701 Temperature Control EA-709 Temperature Control
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EMISSION RECOVERY SYSTEM ABERDEEN CHEMICAL PLANT OPERATING MANUAL
V. INSTRUMENT LIST (Cont.)
Item No.
Description
Service
TG-301 TG-302 TG-303 TG-304 TG-701 TG-702 TG-703 TG-709A TG-709B
Temperature Gauge Temperature Gauge Temperature Gauge Temperature Gauge Temperature Gauge Temperature Gauge Temperature Gauge Temperature Gauge Temperature Gauge
EA-301 Process Inlet EA-301 Process Outlet EA-301 CWS Line EA-301 CWR Line T-701 T-702
T-703 EA-709A CWR Line EA-709B CWR Line
TIC-701 TIC-709
Temperature Indicating Controller
Temperature Indicating Controller
EA-701 Temperature Control EA-709 Temperature Control
TS-702 TS-703
High Temperature Switch T-702 High Temperature Switch T-703
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EMISSION RECOVERY SYSTEM ABERDEEN CHEMICAL PLANT OPERATING MANUAL
VI. OPERATING PROCEDURES
A. General Information
The Emission Recovery System is designed to
continuously
with a minimum of operator attention. The i lain controls for the
system are located on a local instrument panel on the north wall of
the second floor of V-ll. Secondary controls are located in the
vinyl control room (See Section VI. C.).
B. Local Panel and Switches
The local control panel consists of the following items:
1. Explosion Proof Horn. 2. Explosion Proof Ronan Alarm Panel. 3. Explosion Proof "Killark" Control Panel. 4. PIC-701, Foxboro 43AP Pneumatic Pressure Indicating
Controller For T-701 Low Pressure Control. 5. TIC-701, Foxboro 43AP Pneumatic Temperature Indicating
Controller for EA-701 Cooling Water Flow Control. 6. TIC-709, Foxboro 43AP Pneumatic Temperature Indicating
Controller For EA-709 A, B, and C Cooling Water Control. 7. PIC-301, Foxboro 43AP Pneumatic Pressure Indicating
Controller For Interstage High Pressure Control. 8. PIC-302, Foxboro 43AP Pneumatic Pressure Indicating
Controller for Interstage Low Pressure Control. 9. LIC-301, Foxboro 43AP Pneumatic Level Indicating Controller
For T-703 Level Control.
The "Killark" control panel consists of start/stop switches for P-707
and P-708 and an open/close switch for the batch water stripper and the
new module blowdown tank. It also contains run and open/close lights
for these items.
. . ; t
PIC-701 is used to control the vacuum in the inlet K.O. tank T-701.
The normal set point is 15 in. Hg. vacuum. This controller sends a
3-15 PSI signal to PCV-701, the pressure control valve. A signal of 15
PSI will open PCV-701 completely and a 3 PSI signal will close PCV-701
completely.
This controller and valve regulatesthe flow of RVCM which
enters T-701 to maintain a minimum pressure of 15 inches Hg vacuum.
TIC-709 is used to control the seal water temperature for the Emission Recovery System. The normal set point is 110F. This controller sends a 3-15 PSI signal to TCV-709 which is located in the cooling water return line of the seal water coolers EA-709A, B, and C. A 15 PSI signal closes TCV-709 and a 3 PSI signal opens it. This valve regulates the amount of cooling water flowing through the shell side of the seal water coolers in order to achieve the desired seal water temperature.
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EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT OPERATING MANUAL
OPERATING PROCEDURES (Cont.)
TIC-701 is used to control the temperature of the vapor stream from EA-701. The normal set point is 110F. This controller sends a 3-15 PSI signal to TCV-701 which is located in the cooling water return line of the inlet steam condenser, EA-701. A 15 PSI signal closes TCV-701 and a 3 PSI signal opens it.
PIC-301 is used to control high pressure in T-702 to prevent high inlet pressures to C-705 and C-706. The normal set point is 5 PSIG. The controller sends a 3-15 PSI signal to PCV-301 which is located on the process inlet to the vacuum pumps. High pressure in T-702 causes PCV--301 to close and throttle the vapor to the vacuum pumps and com--
PIC-302 is used to control low pressure in T-702 to prevent low inlet pressures to C-705 and C-706. The normal set point is 1 PSIG. The controller sends a 3-15 PSI signal to PCV-302 located on the vapor recirculation line between T-702 and T-703. Low pressure in T-702 causes PCV-302 to open and allow vapors from the discharge of C-705 and C-706 to recirculate to the inlet.
I
LIC-301 is used to control the level in T-703. The controller sends a 3-15 PSI signal to LCV-301 located on the drain line between T-703 and T--702. High level in T-703 causes TCV-301 to open allowing water to flow from T-703 to T-702.
The reamaining items of the local control panel deal with system malfuntions and alarms. The alarms are as follows:
Vessel T-701
Alarm
F
?
*r
PAH-701, High Pressure
LAH-701, High Level
Setpoint 15 PSIG
Element
Pressure Switch Float
T-702
PAH-702, High Pressure LAH-702, High Level TAH-702, High Temp.
25 PSIG
-
175F
Pressure Switch Probe Temperature Switch
T-703
PAH-703, High Pressure LAH-703, High Level TAH-703, High Temp.
100 PSIG
--
175F
Pressure Switch Float Temperature Switch
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h
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
OPERATING PROCEDURES (Cont.)
If any one of the above alarm setpoints is exceeded, then the element will trip the alarm on the local control panel and the following sequence of events occurs:
1. Local alarm light comes on. 2. Local alarm horn sounds. 3. The vacuum pumps and compressors shut down. 4. Emission Recovery Shutdown alarm sounds in the vinyl control
room.
Any upset must be corrected before the system can be restarted. If a seal water pump is on, the vacuum pump and compressor in the hand posi tion will automatically start back up when the alarm problem is cor rected. If there is any delay in restarting the system the seal water pump should be shut off. The next section will outline the procedure to clear each alarm.
1. T-701 High Pressure Alarm (PAH-701) This is set at 15 PSIG.
a. Check the pressure gauge on T-701.
b. Check the batch water stripper pressure. It must be lower than T-701 pressure. If it is not, pull the pressure off the batch water stripper with the large recovery system.
c. Open the 2 inch manual drain valve on the bottom of T-701. This bleeds pressure to the batch water stripper.
d. Make sure that one vacuum pump and one compressor are switched to hand and that the other vacuum pump and compressor are in auto.
2. T-701 High Level Alarm (LAH-701)
S
fr '
a. Check water level in the gauge glass on T-701.
b. Check to see if drain pump P-701 is in the auto mode.
c. Check CV-701 which is the automatic drain valve on T-701. It should be open already, but if it is not open the manual drain on the bottom of T-701 and proceed with the next step.
d. Close both two inch ball valves on the level well on T-701.
e. Open the one inch HPSW valve on the top of the level well and slowly fill the level well with water.
f. CV-701 should open when the water level reaches the middle level switch. If CV-701 will not open, an instrument man must work on the middle level switch.'
15 VAB.0001134997
EMISSION RECOVERY SYSTEM
h
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
2. T-701 High Level Alarm (LAH-701) (Cont.)
g. Check the pressure drop across DST-301 and check P-701 for cavitation (the discharge pressure gauge for P-701 would be jumping around erratically). If DST-301 is plugged, switch to the other side and clean strainer.
3. T-702 High Pressure Alarm (PAH-702) This is set at 25 PSIG.
a. Check pressure gauge on T-702.
b. Check batch water stripper pressure. It must be lower than T-702 pressure. If it is not, pull the pressure off the batch water stripper with the large reactor recovery system.
Open the two inch manual drain valve on the bottom of T-702. This bleeds T-702 pressure to the batch water stripper.
d. Make sure that one vacuum pump and one compressor are switched to hand and that the other units are in auto.
4. T-702 High Level Alarm (LAH-702)
a. Check water level in the gauge glass on T-702
b Check to see if drain pump P-701 is in the auto mode.
Check CV-311 which is used to automatically drain T-702 to T-701 discharge. This valve is located on the discharge side of the seal water pumps. It should be open. If it is not, an instrument man must work on the upper float level switch.
d. If CV-311 is operating prpperly and T-702 will not'drain check for plugged strainer at the drain pump or a closed valve between the drain line and batch water stripper.
%
e. To manually drain T-702 open the 2 inch manual drain valve on the bottom.
5. T-702 High Temperature (TAH-702) This is set at 175F.
a. Check temperature in T-702. If it is high proceed with the next step, if not have instrument man work on temperature switch.
b. Add HPSW to T-702 to cool down the temperature.
c. Check TIC-709 operation. Check that the seal water coolers are properly set up and that the cooling water valves are opened.
VAB.0001134998 16
EMISSION RECOVERY SYSTEM ABERDEEN CHEMICAL PLANT OPERATING MANUAL
*
VI. OPERATING PROCEDURES (Cont.)
5. T-702 High Temperature (TAH-702) (Cont.)
d. Check TIC-701 temperature. If it is abnormally high, check TIC-701 operation and check that EA-701 is properly set up.
maintenance
damage
f. Before operating system put all seal water coolers on line.
6. T-703 High Pressure Alarm (PAH-703) This is set at 100 PSIG.
a. Check pressure gauge on T-703. If the pressure is still high check the valves between T-703 and the RVCM receiver and proceed with next step.
b. Check pressure in the batch water stripper to which water is being drained. It must be lower than T-703 pressure. If it is not, pull the pressure off the batch water stripper with the large reactor recovery system.
c. Open the two inch manual drain valve on the bottom of T-703. This bleeds T-703 pressure to the BWS.
d. After the system is restarted check EA-301 for high differen tial pressure.
7. T-703 High Level Alarm (LAH-703)
a. Check water level in the gauge glass on T-703.
b. Check LCV-301 which is the automatic drain valve on T-703. It should be open already, but if it is not, open the bypass line around LCV-301. Check that LIC-301 set point is at 6 to 10 inches water.
c. If LIC-301 is set right, have an instrument man look at LT-301.
8. T-703 High Temperature Alarm (TAH-703) This is set at 175F
a. Check temperature in T-703. If it is high proceed with next step, if not have instrument man work on temperature switch.
b. Add HPSW to T-703 to cool down the temperature.
c. Check TIC-709 operation. Check that the seal water coolers are properly set up and that the cooling water valves are open.
VAB.0001134999
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
d. Check TIC-701 temperature. If it is abnormally high, check TIC-701 operation and check that EA-701 is properly set up.
e. Have maintenance check the compressors for any damage.
f. Before operating system put all seal water coolers on line.
C. Control Room Panel and Switches
The only controls for the Emission Recovery System that are installed in the vinyl control room are two valve switches and one alarm. The Emission Recovery System is designed to be controlled from a local panel in V-ll as described in Section VI. B. of this operating manual.
The one alarm is a shutdown alarm that occurs when the Emission Recovery System has a malfunction and vacuum pumps and compressors are automatically shut down. When this alarm sounds, the panel operator will notify the "A" operator in the field. The ,,AM opera tor will go to the local control panel in V-ll and investigate the alarm.
The valve switch labeled CV-1 controls a two inch plug valve in the line to the VCM tank farm. This switch and valve must be in the open position unless the Emission Recovery System is down for main tenance
The other valve switch associated with the Emission Recovery System is labeled CV-601. This switch controls a three inch plug valve in the batch water stripper recovery line to the Emission Recovery System. It should be open except for the following circumstances.
V
*
1. The Emission Recovery System is down for maintenance. 2. The batch water strippers are down for maintenance.
The pressure recorder for T-701, PR-301, is located on the old module vinyl control panel on the D-300 panel. This recorder is calibrated from 30" Hg vacuum to 150 PSIG. Also, located on the old module recovery panel, are run lights for the vacuum pumps, compressors, and seal water pumps and amp meters for the vacuum pumps and compressors.
VAB.0001135000
TW
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
D. Pre-Startup Checks (See Drawing MS-9630-42-1-D)
1. Open the following valves (all others excluding safety relief valve isolation valves must be closed):
a. EA-701 Inlet Condenser
Two 2 Inch block valves at PICV-701 One 2 inch block valve at CV-1 One 3 inch plug valve for vaporinlet to EA-101 One 3 inch plug valve for vapor outlet from EA-101 Two 4 inch cooling water supply valves to EA-101 Two 4 inch cooling water return valves from EA-101 Two 3 inch block valves on TCV-701 valve manifold
b. T-701 Inlet K.O. Drum
One 3 inch ball valve for vapor inlet to T-701 One 3 inch ball valve for vapor outlet from T-701 One 3 Inch ball valve on T-701 liquid drain to DST-301 Two 3 inch ball valves on DST-301 inlet and outlet Two 2 inch ball valves on T-701 level well Two 3 inch valves between P-701 and the BWS
c. P-703 Vacuum Pump
One 3 inch ball valve for P-703 vapor outlet One 2 inch ball valve for seal water inlet to P-703 Three 1/2 inch ball valves for mechanical seal purge
water inlets to P-703 Two 1/2 inch valves for mechanical seal purge water
outlet on P-703 Two 3/4 inch ball valves on the inlet and outlet to the
MSPW filter
d. P-704 Vacuum Pump
One 3 inch ball valve for P-704 vapor outlet One 2 inch ball valve for seal water inlet to P-704 Three 3/4 inch ball valves for mechanical seal puree
water inlets to P-704 Two 1/2 inch valves for mechanical seal purge water
outlet on P-704 Two 3/4 inch ball valves on the inlet and outlet to the
MSPW filter
19
h
VAB.0001135001
I
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
D. Pre-Startup Checks (Cont.)
e. T-702 Vacuum Pump Seal Water Separator
One 3 inch ball valve for vapor inlet to T-702 One 3 inch ball valve for vapor outlet from T-702 Two 2 inch valves in the drain line from T-703 to
T-702 Two 1 inch valves at LCV-301 between T-703 and T-702 One 3 inch ball valve for seal water pump suction from
T-702 Two 2 inch ball valves on T-702 level well
f. C-705 VCM Compressor
One 3 inch ball valve on discharge of C-705 One 2 inch ball valve for seal water inlet to C-705 Three 1/2 inch ball valves for mechanical seal purge
water inlets to C-705 Two 1/2 inch valves for mechanical seal purge water
outlet on C-705
One \\ inch ball valve on the compensating seal water line
to C-705
g. C-706 VCM Compressor
One 3 inch ball valve on discharge of C-706 One 2 inch ball valve for seal water inlet to C-706 Three 3/4 inch ball valves for mechanical seal purge
water inlets to G-706 Two 1/2 inch valves for mechanical seal purge water
outlet on C-706
One lh inch ball valve on the compensating seal water line
to C-706
h. T-703 Compressor Seal Water Separator
One 6" ball valve for vapor inlet to T-703 One 3" ball valve for vapor outlet from T-703 Two 2" ball valves on T-703 level well One 3" ball valve for vapor outlet to EA-301
*
VAB.0001135002
I
A
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
D. Pre-Startup Checks
i. EA-301 VCM Condenser
Two 3U valves on the process inlet to EA-301 One 3" plug valve on the process outlet from EA-301 Three 2" plug valves on the line to the old module RVCM
receivers Two 4" gate valves on the cooling water supply to EA-301 Two 4" valves on the cooling water return from EA-301
j. Seal Water Pump NP-301, Filter FD-301
One 3" ball valve for suction to P--707 or P-708 One 2" ball valve for discharge from P-707 or P-708 One 2" ball valve upstream of filter FD-301 (FD-301S Spare) One 2" ball valve downstream of filter FD-301
(FD-301S Spare)
k. Seal Water Coolers, EA-709A, B, C (Note: These are run in parallel)
One 2" ball valve on seal water inlet to EA-709A One 2" ball valve on seal water outlet from EA-709A One 2" ball valve on seal water inlet to EA-709B One 2M ball valve on seal water outlet from EA-709B One 2" ball valve on seal water inlet to EA-709C One 2" ball valve on seal water outlet from EA-709C One 3" ballvalve for cooling water supply to EA-709A One 3M ballvalve for cooling water return from EA-709A One 3" ballvalve for cooling water supply to EA-709B One 3" ballvalve for cooling water return from EA-709B One 3" ballvalve for cooling water supply to EA-709C One 3M ballvalve for cooling water return from EA-709C One 3" ball valve upstream of TICV-709 One 3" ball valve downstream of TICV-709
Note:
If while down the ERS system has been opened to atmos phere, oxygen needs to be removed from the system by filling the system completely with water and then breaking vacuum with steam or VCM and draining the excess water to the batch water strippers. Oxygen in the system at startup is a possible explosion hazard.
21
VAB.0001135003
I
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
2. Fill T-702 and T-703 half full with water from the manual HPSW lines at the top of the level gauges.
3. Start the hydroquinone injection to T-702. Set the injection rate as described by the procedure sign at the hydroquinone tank.
4. The VCM tank farm inlet valve CV-1 and the batch water strip pers inlet valve CV-601 should be closed.
5. The vacuum pump high suction pressure controller PIC-301 should be set at 5 PSIG.
6. The compressor low suction pressure controller PIC-302 should be set at 1 PSIG.
7. T-701 low pressure controller PIC-701 should be set at 15 in Hg vacuum.
8. The inlet condenser temperature controller TIC-701 should be set on 110F.
9. The seal water cooler temperature controller TIC-709 should be set on 110F.
10. Seal water flow controller FIC--301 and FIC--302 on vacuum pumps P-703 and P-704 should be set on 12 GPM.
11. Seal water flow controller FIC-303 or FIC-304 on compressors C-705 and C-706 should be set on 18 GPM.
L
12. T-703 level controller LlC-301 should be set at 6 to 10 inches water.
E. Start-up Sequence:
1. Start one seal water pump P-707 or P-708 by depressing the start switch on the local control panel. Note: The vacuum pumps and compressors will not start unless the seal water pump is running.
VAB.0001135004
T
P *WV
f
t
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
2. Start one compressor C-705 or C-706 by placing the local hand-off-auto switch in the hand position. Place the other compressor in auto so that it will start on demand.
3. Start vacuum pump P-703 or P-704 by placing the local hand-offauto switch in the hand position. Place the other vacuum pump in auto so that it will start on demand.
4. Place drain pump P-701 in the auto position.
Note: Caution should be taken around the vacuum pumps and compres sors since the units in automatic can start up at any time.
F. Post Start-up Checks
1. Verify that the pressure in T-701 decreases to the setpoint on PIC-701 and stabilizes. PIC-701 operates PCV-701 which allows VCM from the large recovery system VCM collect tank to enter T-701 to control the vacuum in T-701.
2. Verify that the seal water flow to the vacuum pumps and com pressors is at the setpoint on flow controllers.
3. Check the discharge pressure on the vacuum pump. It should be between 1 and 5 PSIG.
4. Check the discharge pressure of the compressor. It should be a few PSI above the pressure on the receiver to which VCM is being transferred.
5. Check the water level in T--703 and T--702. Adjust if necessary.
6. Check seal water pump discharge pressure. It should be 125 PSIG 10 PSIG.
L V
7. Check seal water pressure downstream of the seal water filter FD-301. It should be 2 to 5 PSI less than the upstream pres-
G. Systems Operation
Once the Emission Recovery System has been successfully started up and all checks have been completed, the system can then be used for the following:
1. VCM Tank Farm Recovery. 2. VCM Railcar Unloading Line Recovery. 3. Steam Stripping of the Batch Water Strippers. 4. Vessel Purging.
A
VAB.0001135005
i
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
G. Systems Operation (Cont.)
Each use will be outlined in the subsequent sections.
1. VCM Tank Farm Recovery
This portion of the system collects VCM vents from the follow ing:
a. Double Mechanical Seals on the VCM Pumps b. Corken Compressor Packing c. Corken Compressor Relief Valve Discharges d. Corken Compressor K.O. Pot Blowdown e. VCM Sphere and Bullet
For these operations it is necessary that the Emission Recovery System be operating at 15 in Hg vacuum and that CV-1 is open. This allows the Emission Recovery System to pull VCM vapors from the tank farm through a 2 inch line.
2. VCM Railcar Unloading Line Recovery
This operation is to begin when the yard operator determines that the VCM cars are empty and are ready to be disconnected from the unloading lines. The railcar pressure at this point will normally be about 10--20 PSIG. To perform this operation properly, the Emission Recovery System must be operating at 15 in. Hg vacuum and control valve CV-1 must be open. It is the responsibility of the vinyl department to maintain these condi tions at all times.
Example for North unloading station:
L
1. Shut off all Corken cdmpressors. 2. Close 6" block valve on liquid line and 4" block valve
on vapor line. These lines and valves are located on the west side of the compressor shed. 3. Close the three valves on railcar.
4. Open switch SW-201 located at the North unloading station platform. Note: Switches SW--202, SW--303 are located at the other two platforms. Actuating this switch will open two 1 inch control valves (Bettis operators) which are tied into the two 3 inch unloading lines for the North unloading station. This will allow the Emission Recovery System to pull a vacuum on the unloading lines.
*
VAB.0001135006
*nf
mW
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
k
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
G. Systems Operation (Cont.)
5. When the pressure on the unloading lines reaches 10 in Hg vacuum close the three valves on the unloading lines on the west side of the platform. Note: Pressure gauges are located at each unloading platform. At this point the stainless steel flex hoses are valved off at both ends and are at 10 in. Hg vacuum.
6. Disconnect the 2 unloading lines from the tank car and open the 1/2 inch vacuum breaker valves on each unloading line.
7. Reset switch SW-201.
8. Repeat steps 3 through 7 for all unloading stations.
3. Steam Stripping of the Batch Water Strippers
Note: Open CV-601 and leave open. Close only when the Emission Recovery System is down.
Refer to the batch water strippers operating manual for steam stripping procedures for that system.
4. Vessel and Equipment Purge System
This system consists of a manifold system to purge vessels and
equipment in VCM service prior to opening by evacuating the
vapor with the Emission Recovery System and displacing the VCM
with steam.
i.' f
The following general procedure is to be followed to purge VCM from vessels or equipment. In the old module, some of the ves sels may be evacuated directly into the Emission Recovery Sys tem while others will be evacuated by the Emission Recovery System through the batch water strippers. In the new module the vessels and equipment will be evacuated by the Emission Recovery System through the blowdown tank.
1. The following old module vessels can be evacuated directly into the Emission Recovery System tank T-701. When purging one of them, open the 3" ball valve in the vessel purge line which enters the Emission Recovery System on the second floor of V-ll.
VAB.0001135007
Af
EMISSION RECOVERY SYSTEM
ABERDEEN CHEMICAL PLANT
OPERATING MANUAL
VI. OPERATING PROCEDURES (Cont.)
G. Systems Operation (Cont.)
a. The fresh and recovered VCM receivers. b. The RVCM collect tank. c. The recovered VCM condensers. d. The recovery seal water separators. e. The recovery K.O. pots.
2. Open the evacuation valve on the vessel or equipment.
3. Evacuate with the Emission Recovery System.
4. Connect a steam hose to the vessel or equipment and begin steam purging.
5. Purge the vessel or equipment for the amount of time speci fied in Tables I and II.
6. All VCM filters will be evacuated and purged through the batch water stripper or new module blowdown tank.
7. Close the steam and evacuation valves after the purge time is complete.
8. Before entering the vessel or equipment, check for VCM contamination with a portable hydrocarbon detector. If there is a reading, repeat the steaming and evacuation until the purge is complete.
9. Allow the vessel or equipment to cool down before entering.
t*
T m*
Plfllipn
w
VAB.0001135008
CONOCO NO.
45-011 45-012 45-013 45-017 45-018 45-005 45-028 45-027 45-026 45-301 45-308 55-002 55-004 55-311 55-005 55-006 55-008 55-009 55-340 64-008 64-691 64-009
EPA COMPLIANCE OF VCM EMISSIONS
VESSEL AND EQUIPMENT PURGING
ABERDEEN CHEMICAL PLANT
TABLE I; OLD MODULE VESSEL AND EQUIPMENT PURGING
USE
VOLUME GALLON
PURGING TIME <3 35 SCFM, MIN.
North VCM Receiver Middle VCM Receiver Fresh VCM Receiver Separator Separator RVCM Collect Tank South K.O. Pot North K.O. Pot K.O. Tank K.O. Tank K.O. Tank Seal Water Cooler Seal Water Cooler Seal Water Cooler Seal Water Cooler Seal Water Cooler Recovery Cond Recovery Cond Recovery Subcooler Fresh VCM Filter Rec. VCM Filter Fresh VCM Filter
7390 7390 7390
128 128 560 590 590 566 456 456
67 67
67(1)
42v '
42(1) 124(1) 124(' 1)7 171u;
--
--
--
40 40 40
1 1 3 3 3 3 3 3 1 1 1 1 1 1 1
15<2) 15 (2>
15 K J
(1) Tube volumes are given for exchangers. (2) Must be purged because filter is saturated with VCM.
h
VAB.0001135009
i
EPA COMPLIANCE OF VCM EMISSIONS
VESSEL AND EQUIPMENT PURGING
ABERDEEN CHEMICAL PLANT
TABLE II:
AND
CONOCO NO
45-317 89-520 45-745 45-762 45-763 45-760 45-761 55-335 55-336 55-337 55-338 55-334 64-718 64-719 64-742
USE
VOLUME, GALLON
West VCM Receiver Middle VCM Receiver Fresh VCM Receiver Separator Separator K.O. Pot K.O. Pot Seal Water Cooler Seal Water Cooler Recovery Cond Recovery Cond Recovery Subcooler Fresh VCM Filter Rec. VCM Filter Fresh VCM Filter
*
7390 7390 9275 1380 1380 1520 1520
52
*^(1) 144, *
44(1)
171 C^ l')}
----
----
PURGING TIME @ 35 SCFM, MIN
40 40 50
8 8 8 8 1 1 1 1
15 (2)
15 15(Z)
(1) Tube volumes are given for exchangers. (2) Must be purged because filter is saturated with VCM.
i
VAB.0001135010
EMISSION RECOVERY SYSTEM
DAILY WALK-AROUND INSPECTION REPORT Date Time Operator
A
Water level in T-702 (% of level sight glass) ............................ .....................................
Water level in T-703 (% of level sight glass) ............................ .....................................
Seal water pump running (P-707 or P-708) discharge pressure PSIG
Seal water pressure downstream of filter.......................................... ...............................PSIG
Hydroquinone being injected (Yes or No) .......................................... .....................................
Water level in T-701 (% of level sight glass) ............................ .....................................
T-701 inlet temperature and pressure (PSIG or in. Hg vac) . F
CV-1 (Open or closed)................................................... ................................ ........................................
CV-601 (Open or closed) ............................................................................... .....................................
Vacuum pump P-703 switch position (hand, off, or auto) If in auto, is it running (Yes or No)........................................................................................ ................... ................
Mechanical seal purge water to vac pump P-703 (rotometer and discharge pressure readings)................... North seal %
__________ PSIG
South seal
%
PSIG
Vacuum pump P-704 switch position (hand, off, or auto) If in auto, is it running (Yes or No)........................................................ ............................
Mechanical seal purge water to vac pump P-704 (Rotometer and discharge pressure readings)........................................................ North seal % ___________________ PSIG
South seal %
PSIG
Compressor C-705 switch position (hand, off, or auto) If in auto, is it running (Yes or No).......................................... .... ........................................................... ...................
MSPW to compressor C-705 (Rotometer and discharge pressure readings)
North Seal% PSIG
South Seal% PSIG
Compressor C-706 switch position (hand, off, or auto) If is auto, is it running (Yes or no)............................................................................................................
MSPW to compressor C-706 (rotometer and discharge pressure readings)
North Seal % ___________________PSIG
South Seal % ___________________PSIG
29
VAB.0001135011
J
Liquid ring seal water flow to vac pumps (P-703 and P-704)
GPM
Liquid ring seal water flow to compressors (C-705 and C-706)
GPM
Vac pumps and compressors rupture discs condition (all OK or indicate problem)....................................................................................................................
T-701 low pressure controller PIC-701 pressure (PSIG or in. Hg Vac)
Inlet condenser temp controller TIC-701 temperature
Seal water cooler temp controller TIC-709 temperature. . .
T-703 level controller LIC-301 reading . .
Vac pump suction press, controller PIC-301 pressure
Compressor suction pressure controller PIC-302 pressure. . .
Describe any alarms/shutdowns (include alarm type, cause, and action taken to correct problem)
GPM GPM
FO FO
PSIG PSIG
A
Were seal water filters changed today?
TURN THIS FORM IN TO THE SHIFT SUPERVISOR WHO WILL TURN IN TO OPERATIONS SUPERVISOR (CHRIS TURNER) FOR REVIEW.
30
VAB.0001135012
V"
p
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t
i
t
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......1 :|MMli --!MI'................... ................ ! " I i: I
t
I
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ii i
VAB.0001135013
