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Motiva Enterprises (2719), Convent

LDEQ Accident Report

Accident #88564
PDF AvailablePDF
State Police #06-1749
Accident Date2006-06-13
Report Date 2006-06-19
Follow-up Date 0000-00-00
Follow-up: No

Pollutants Released

Pollutant Duration Point Source Greenhouse Gas Criteria Pollutant Ozone forming chemical Amount of Release
Sulfur Dioxide45mflare #2NOYESNO1,756.0 pounds
Hydrogen Sulfide45mflare #2NONONO4.7 pounds
Volatile Organic Compounds (VOCs)45mflare #2NONOYES124.4 pounds
Particulate Matter 1045mflare #2NOYESNO11.4 pounds
Carbon Monoxide45mflare #2NOYESNO328.6 pounds
Nitrous Oxide45mflare #2YESYESYES60.4 pounds

Accident Classified As:

Cause of Problem: Piping or Tubing

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

Discharge Preventable - Yes

"To prevent a recurrence, operations will open the block valve around the bypass control valve, which will ensure flow through the ICGO loop."

Notes/Remedial Actions

"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."