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|State Police #||06-1749|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Sulfur Dioxide||45m||flare #2||NO||YES||NO||1,756.0 pounds|
|Hydrogen Sulfide||45m||flare #2||NO||NO||NO||4.7 pounds|
|Volatile Organic Compounds (VOCs)||45m||flare #2||NO||NO||YES||124.4 pounds|
|Particulate Matter 10||45m||flare #2||NO||YES||NO||11.4 pounds|
|Carbon Monoxide||45m||flare #2||NO||YES||NO||328.6 pounds|
|Nitrous Oxide||45m||flare #2||YES||YES||YES||60.4 pounds|
Accident Classified As:
piece of instrument air tubing failed causing a bypass control valve around a steam generator to close. Flow through the intermediate cycle gas oil circuit stopped, causing de-ethanizer tower to slump, increasing concentration of light material in the de-butanizer tower feed, increased pressure, causing flaring event
"To prevent a recurrence, operations will open the block valve around the bypass control valve, which will ensure flow through the ICGO loop."
"unit charge rate and riser temperature were reduced immediately following the loss of heat medium into the de-ethanizer reboiler to minimize the loading to the debutanizer tower. The bypass around 2PDC-142 was opened to re-establish flow to the de-ethanizer reboiler."