Document OEw0bbgQaN6MGyn4Q6ZqJ59jK
(conoco)
Interoffice Communication
To From
Date
Subject
J, R. Holcomb C. R. Heddins October 10, 1975 EDC Moisture Analyzer
As requested by the Process Design Review Group which met Oct. 2, 1975, contact was made with PPG's Analytical Group which made a review of the Anacon infra-red moisture analyzer shortly after it was in our plant.
Mr. Bob VanHoozer was the man most familiar with the analyzer. He said they believe the unit to be an effective aid in monitoring trends but expressed concern that it had calibration limitations. The best way they devised for a zero moisture calibration was to pass an E.D.C. stream through a dryer column and call that zero. Span is accomplished by lab comparison.
VanHoozer said they have not tested the Teledyne unit but he thinks it is more for the money. However calibration is the same problem for each.
C. R. Heddins be CC: JAD-JRH-LNW-HQA-CEG-JSR-JCL-DtfL-DHJ
CUJH 000012552
(conoco)
Interoffice Communication
To From
John Friend J. L* Berardo
_* -
Date Subject
August 19, 1975
EDC Moisture Analyzers Design No.: 54-2G0-775-JLB FINAL
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Attached is the design for the installation of two infrared moisture analyzers; one to monitor water In the heavy ends column f.gri_and--reflux. and one for the me vaporizer^1 outlets (H-201 A#-B)-. This project is part of the 1975 Capital Budget.
Because the JiCl content in these streams is high, aneccess of 75 ppm water for a period of time causes corrosion in the process equipment. The current system for monitoring water involves collecting and analyzing samples of the heavy ends reflux 4 times a shift and vaporizer feed cr.ce a day. An on-stream infrared analyser v/oulu provide continuous monitoring of 'water content and early detection of leaks or problems in the system. It would also provide an indication as to the location and size of the problem.
In both analyzer locations, an existing chromatograph and sampling syst-c-TP i3 present. The infrared analyzer will tie into tills sample system, eliminating additional sample probes and minimising extra conditioning (filtering) of the sample. After analysis, the sample will flow into the chromatograph's sample return line and back into the process. The analyzer on the EDO vaporizer lines is being specified for a liquid sample, because the chroma tograph (CAR-276) in this position is planned to be adjusted-for liquid analysis. The type of analyzer specified and quoted by Areas has been used in the plant for a one week trial period. The analyser was evaluated primarily to see if it followed trends. A similar type test was ran at FPG. In both cases, the analyzer was found to respond to process changes in the water concentration (as monitored by the lab) satisfactorily.
Other types of analyzers considered were an aluminum oxide hygrometer and an on-strcam gas chromatograph. The chromatograph was rejected because on infrared analyzer is easier to use and Ins lower maintenance requirements. The aluminum oxide hygrometer is unsuitable because components in the stream, particularly HC1, affect its analysis, making the accuracy of the results questionable.
Janice L. Berardo
be CC: JAD-GGD-JF( 5) -JRH(4) -CEG-JHM-PE
CUH 000012553
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F KJ/'X 1 N FF P 1 M rt. CENTER
K*JPONCA CITY. OKI AHOMA
VV SPECIFICATION >HEET
flATF 7/30/75 MADE BY JLR
APP'n BY
R M NO
pi ant
Conoco VCH
ITM NO i(CAR-1 72 SERVICE !'oi ^t'jro Anal V7Pr
pr<n.iFCT- EOC Moisture AnalV7nr 0 q s i 0 ^ ` ^ F A _?^n_77;_ n n
ow no
INO NO. REO. NO. P O NO.
ANALYZER
On stream infrared analvzer with aiitor- atir -^nri sv/itchina ability
c`r-i5m
STREAM
Heavy ends column feed and reflux
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COMPONENTS IN STREAM V.T%
EDC VCM HCCI *, CCl^ 1,1,2-Trichloroethylene Benzene 2-Chloro (nom) Chloroorene 1 ,1,2-Trichloroethane HC1 (onm) Mater (ppm)
PHASE TEMP. (C) PRESSURE (PSIG)
C-103 F*eri 97.13 .ons .042 .125 .186 .021 210.7 .006 2.05
-
25
L 125-130C
90
0
o
01
C-1H3 Reflux 99.63 002 .036
.237
.021 34.7
-
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25.3 24 2
L 60-70C
122
COMPONENTS TO BE ANALYZED Water
. RANGE 0-100 nom
CUH 000012555
PLANT
item no
SERVICE
Conoco VCM ilLAK- 1 /z
ENGINEERING CENTER
PONCA CITY, OKLAHOMA SPECIFICATION SHEET
Af t DATE
NQ7/30/75' w
o
NO.
MADE BY JLR____INO NO
ntoapp'duy_
no.
B M NO
project- EDD Moisture Analyzer Desinn No.54-200-775-JLB
P O NO.
SAMPLE PROBE REOUIRED ?
No
FILTER RFOUTRFD ?
No
MUST SAMPLE SYSTEM BE HEATED ?
Vendor's Ontion
ST7F-
RECORDER:1 LOCATION: Control Room (2001 from analyzer)
TYPE: Honeywell 111' strip recorder (heated inkless pen) or eauivalent ANALYZER:2
LOCATION: Process area 40' from sample noint^ TEMP. RANGE: Ambient CLASS: Explosion proof
SERVICES REQUIRED: ^
Installation check-out
Start-up Trainina of plant personnel calibration Procedure and standards
1 Hi ah water content (50 and 95 ppm) 2 point alarm necessary
2 Analyzer and stream selector sol. valves should be class 1, division II,
aroup D
3 Weather enclosure provided bv Conoco
(in exi^finn G.C. sharksi
4 Spare sample cell to be provided by vendor
CUH 000012556
;41-S
7^7
PLANT
Conoco VCM
ENGINEERING CENTER
A F E. NO_______________________
PONCA CITY. OKLAHOMA
DATE 7/TO/75 w. O.NO
SPECIFICATION SHEET
MADE BY J |_ p INO. NO..
app'dby__________ reo.no
__ P o NO. EDC Moisture Analyzer
PROJECT-
Design No. 54-200-775-JLR
Item
service
ntW-^77
Moisture Analv^or
_____-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*
ANALYZER: On-stream infrared analyzer with automatic and manual stream switching ability
STREAK:
Vapor stream from EDC vaporizers (h-201A * R)
COMPONENTS IN STREAM: '*'T%
(Condensed to a liquid)
EDC VCM KCCl,
H--201A 99.63
.00?
.036
H-201R 99.63 .002 .036
CC1, 1,1,2-Trichloroethvlene R^nzene 2-Chloro (DDm) Hater (nnrn) HC1 (pom)
.096 .237 .021 34.7 24.3 25.3
.096 ' .237
.021 3^.7 24.3 25.3
PHASE1 TEMP. (C) PRESSU RE (PSIG)
V 185C 155
V 1 B5C 155
COMPONENTS TO BE ANALYZED:
Hater
RANGE 0-1 on nnm
----------------------------------------------------------------------------------------------------------- *----------------CUN 000012557
Although the process stream is a vaeor the analvzor ''j 1 jjsp a linuid stram. The existi.in chromatonraph (CAR-276) is planned to be s\ 'itched to use a liquid samole.
1 '*y
ITEM NO. SERVICE
,/ /
ENGINEERING CENTER
PONCA CITY. OKLAHOMA SPECIFICATION SHEET
DATE 7/yy 7 5 vv O NO
MAOE QY l?LB
INO NO
APP'D BYHEO NO.
B M NO p 0. NO..
plantConoco VCMproifct- EDC Moisture Analvzer Design Mo - 5d-2QQ-775-ni n
SAMPLE PROBE REQUIRED ?
No
FILTER REQUIRED ?
No
SIZE:
MUST SAMPLE SYSTEM BE HEATED ?
Vendor's notion
RECORDER: 1
LOCATION: Control Room f2001 from analvzer) TYPE: Honeywell 111 strin recorder (heated inkless een) or ecuivalent
ANALYZER: 2
LOCATIOFt: Process area 40' from sample.^
TEMP. RANGE: Ambient CLASS: Explosion nroof
SERVICES REQUIRED: 4 Installation check-out Start on
Traininq of plant personnel Calibration procedure and standards
j I ! 1
I !
*High v;ater content (50 and 95 ppm) 2 point alarm necessary
----------2--------------------------------------------------------------------------------------------------------------------------------------------------------------- *
Analvzer and stream selectors sol. valves should be class 1, division II, nrouo P.
3
Weather enclosure provided bv Conoco
(in existino G.C. shack)
4
Snare sample cell to be provided bv vendor
CUl-l 0000J.2558
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PROCESS PIPING SCHEDULE PROCESS ENGINEERING DEPARTMENT
Date _ 8/15/75 Hade By JLB Project PDC Moisture Analyzer Plant _ Xonoco"VtM
Flow
Line Designation
Service
From
To
V Rate
Normal At T ztnd
L Lb/Hr
Lb/CF
(Hot I2PSD; F PSIG (Sp Gr)
k"-W- 1-P-A20-7
Samole System
CAP-276
^ NCAR-277
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V`-HM-?-P-A2C-l
NCAR-277
NCAR-277
L?^Pttr-^Ur" L
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V-HfM-P-AZO-l
CAP-' 70 ~
NCAR-17?
L
H'*-HM-5-P-A20-l
bamnl "^"System'
rAP-170
MC/'n-17P
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J;"-HM-5-P-A20-l
NCAR-172
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365
365 365 150 |?6o
26Q
155 155
155 ISO
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PSI/ 100'
1.
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Velocity Ft/Sec
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Remarks
