Flint Hills Corpus Christi West Reports DDS Unit Shutdown


   
Miguel E. Andujar
DTN Refined Fuels Market Reporter

   DAVENPORT, FL (DTN) - Flint Hills Resources shut the Diesel Desulfurization 
System (DDS) unit at its 268,500 bpd Corpus Christi West refinery in Texas 
after a release that triggered flaring, according to a filing Wednesday (10/28) 
with the Texas Commission on Environmental Quality (TCEQ).

   It was the second emissions reported at the Corpus Christi facility this 
month, with the latest event occurring Tuesday (10/27) from approximately 7:32 
a.m. to 9:16 a.m. CT - for a duration of an hour and 44 minutes.

   Estimated emissions this time were 1,050 pounds of sulfur dioxide, 157 
pounds of flare gas and 17 pounds of benzene through the first-stage flare 
system.

   The DDS unit was taken down after the release, with the cause still under 
investigation. The filing did not indicate whether the unit had restarted or 
whether refinery production had been affected.

   Downwind air monitoring conducted at three refinery reference points showed 
no detectable concentrations of carbon monoxide, hydrogen sulfide, sulfur 
dioxide or volatile organic compounds, the filing added.

   Tuesday's incident follows an October 13 flaring event lasting approximately 
eight hours, involving the refinery's flare gas booster compressor area. That 
resulted in estimated emissions of 316 pounds of sulfur dioxide and 235 pounds 
of carbon monoxide.

   Flint Hills said the latest emissions figures and event duration were 
preliminary and could be revised in its final incident report.




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