CITGO Corpus Christi Shuts No. 2 FCCU for Maintenance


   
Miguel E. Andujar
DTN Refined Fuels Market Reporter

   DAVENPORT, FL (DTN) -- CITGO reported a shutdown of the No. 2 fluid 
catalytic cracking unit (FCCU) at its Corpus Christi East Plant in Texas to 
complete maintenance, according to a filing with the Texas Commission on 
Environmental Quality.

   The unit was shut down in a controlled manner Monday (8/17) at 11:23 p.m. CT 
to complete maintenance on the Depentanizer Overhead Condenser line. The event 
ended Tuesday (8/18) at 1:06 a.m. CT, the filing said.

   The shutdown resulted in elevated carbon monoxide emissions and excess 
opacity at the FCCU regenerator. Estimated carbon monoxide emissions totaled 
5,001 pounds, while opacity reached 71%, above the 20% limit listed in the 
filing.

   According to the filing, operators followed FCCU shutdown procedures, which 
required the electrostatic precipitators to be turned off as part of the safety 
shutdown logic, resulting in excess opacity. FCC units convert heavier refinery 
streams into gasoline blendstocks and other lighter products, making them a key 
component of refinery gasoline production.

   The Corpus Christi refinery primarily produces gasoline, diesel and jet fuel.

   DTN reached out to CITGO for additional details but did not get an immediate 
response.




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