Document Rez2gy7vG3YVJ3omjqREY0wB
Worksheet
HAZOP-PC 1.00
Company: DOW CHEMICAL CO. " ocess: HDPE - POLY B
Node: 9 Page: 1
+-------------- ------------------- -------------- ------ --------------------------------------------- ------- ------------------- ------- ----------- ------- ------- ------- ----------- ----------------------------- --------------------------------------- -----------------------------------------------h
Node: 9 P-218 A/B to R-2001/R-2002
Parameter: Flow
Intention: 0-5000 Lb/Hr.(Prod.Depend.)
H------------------1 |GUIDEWORD DEVIATION POSSIBLE CAUSES
CONSEQUENCES
RECOMMENDATIONS BY |
No No Flow
None of concern. Add valve at drum GC
Reverse Reverse Instrumentation overfill D-2302. Eliminate bypass GC
Flow
failure.
Overpressure
on flow control
Improper valving, DR-2007.
valves to reactor
and instrument
Plug return line
failure.
to spent.
Automate suction KW
Dump primary to
valve.
post reactor.
Review where the GC
recycle ties into
the reactor.
+--------------- +--------------- +----------------------------- +------------------------------- +----------------------------- +---- +
DO A 120959 CONFIDENTIAL
Worksheet
HAZOP-PC 1.00
Company: DOW CHEMICAL CO. r'*ocess: HDPE - POLY B
Node: 9 Page: 2
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Node: 9 P-218 A/B to R-2001/R-2002
Parameter: Temperature
Intention: Same as Node 10
I--------- ----**------------------------------------------ ~ ~--
--
----------H------+
|GUIDEWORD|DEVIATION| POSSIBLE CAUSES I CONSEQUENCES | RECOMMENDATIONS |BY | +----------------- +------------------ +----------------------------------- +------------------------------------- +----------------------------------- +------+
More
Higher
See Node 10
Temp
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DO A 120960 CONFIDENTIAL