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CITGO Petroleum (1250), Lake Charles

Releases of Sulfur Trioxide

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
96183

2007-05-14		Unit Stack Sulfur Dioxide Analyzer
Cause: heavy rainfall with extensive lightning; analyzer disabled by lightning strike

Followup: No

Notes: Letter mentions sulfur dioxide and hydrogen sulfide but does not cite emission of Sulfur Trioxide, which is listed in the attached verabl repor
109022

2008-09-13		B-11 Flare, B-12 Flare, Sulften Stack, C-Cat Scrubber,
Cause: Hurricane Ike

Followup: Yes

Notes: Power Failure causes release of huge amount of S02. Loss of Pecan Grove substation caused the loss of power to equipment in the SRU, Central Amine, cid Plant, Sour Water Stripper, Unicracker, Wastewater Treating and Coker II Units. Combustion efficiencyof 99% was used to calculate S02 emissions - is that an appropriate figure? Follow-up report on 10/27/2008 discusses emissions from B-11 Flare only REMEDIAL ACTIONS - perform feasability study of reliable power supply for acid block ; Install nsary equipment to start up JC-201 Compressor with less than RQ Flare Emissio