Refinery Events Usw.org From DOE

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Refinery Events

December 9, 2011December 15, 2011

The following events were obtained from the Department of Energy (DOE) website:

Wet Gas Compressor Snag Leads to Delayed Coker Flaring at Valeros 285,000 b/d

Port Arthur, Texas RefineryValero Energy Corp. reported that the delayed coking unit (DCU-843) wet gas compressor (K-6300) firststage antisurge spillback opened and increased K-6300 suction pressure to such an extent that the suction

pressure control valve opened to flare, according to a filing with the Texas Commission on Environmental

Quality. Operators manually closed the spillback control valve to reduce K-6300 suction pressure and close

valve to flare.Reuters 01:36 December 9, 2011

http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162605

Posted to DOE website 12-9-11.

BP Reports Valve Snag at Its 455,790 b/d Texas City, Texas Refinery December 9BP Plc reported a release of hydrogen sulfide due to a valve snag at its Texas City refinery, according to a

filing with the U.S. National Response Center on Friday. The valve was closed, according to the filing.

http://www.reuters.com/article/2011/12/09/refinery-operations-bp-texascityidUSWNAB591220111209?

feedType=RSS&feedName=rbssEnergyNews&rpc=43 Posted to DOE website 12-9-11.

ConocoPhillips Reports Compressor Issues at Its 362,000 b/d Wood River, Illinois

Refinery December 9Reuters, 04:03 December 9, 2011. Posted to DOE website 12-9-11.

Fire Shuts Coker Unit at Pasadena Refining Systems 100,000 b/d Pasadena, Texas

Refinery December 10

Pasadena Refining System reported a fire at the refinerys coker unit Saturday that caused minor injuries toone worker, according to news reports and a filing with state regulators. The unit was shut, and officialscontained and extinguished the fire, preventing it from impacting any other units at the facility. Operators

are de-inventorying the unit and investigating the cause of the fire.

Reuters, 19:49 December 11, 2011

http://english.capital.gr/News.asp?id=1353294

http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162661Posted to DOE website 12-12-11.

ConocoPhillips Reports Small Fire at Coker Unit at Its 362,000 b/d Wood River,

Illinois Refinery December 9ConocoPhillips reported a small fire in the new coker unit at its joint-venture refinery on Friday morning,

but said there were no injuries or offsite impacts as a result. Earlier in the week the company reported

minor compressor issues and problems with an unspecified unit. The refinery completed the startup of thenew coker on November 30.

Reuters, 09:39 December 12, 2011. Posted to DOE website 12-12-12.

Update: Valero Reports Normal Coking Unit Operations at Its 285,000 b/d Port

Arthur, Texas Refinery after Compressor Snag Led to Coker Flaring December 9Valero Energy Corp. reported Monday that no material impact to production has been associated with the

emissions report last week. On Friday the company reported in a filing with state regulators that a wet gas

compressor snag led to flaring from a delayed coking unit.
http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162605http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162661http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162661http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162605


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Hydrocracker Malfunction Leads to Flaring at BPs 455,790 b/d Texas City, Texas

Refinery December 10

A hydrocracking unit malfunctioned Saturday, according to a filing with state pollution regulators. Therefinery lowered the system pressure on the ultracracker to reseat the pressure relief valves that had openedto release excess pressure in the unit, according to the filing. Operators are investigating the cause of the

malfunction.

http://www.reuters.com/article/2011/12/11/refinery-operations-bp-texascityidUSN1E7BA04320111211?type=companyNews&feedType=RSS&feedName=companyNews&rpc=43



SRU Trips, Leads to Flaring at ExxonMobils 344,500 b/d Beaumont, Texas

Refinery December 10ExxonMobil reported that its sulfur recovery unit No. 3 (SRU-3) tripped Saturday, resulting in flaring andelevated emissions from the SRU vents, according to a filing with the Texas Commission on

Environmental Quality. The refinery initiated the sulfur shed plan and restarted SRU-3. Operatorsanticipate some impact to production but have restored normal operations, according to the filing.



Sunoco Restarts Units at Its 335,000 b/d Philadelphia, Pennsylvania Refinery after

Various Repairs December 67Sunoco reported that it restarted the hydrotreater 870 on December 7 after shutting it for compressor repairs

and sulfiding on December 6, according to a filing with Philadelphia pollution regulators. Sunoco Inc. also

reported that it restarted a isomerization unit and a deisobutanizer unit December 8 following a shutdown

December 7. Reports of the filing dont indicate why the units were shut down.

Reuters, 13:53 December 9, 2011Reuters, 14:36 December 9, 2011. Posted to DOE website 12-12-11.

ConocoPhillips Reports Continuous Ammonia Release from FCC Unit at Its 198,400

b/d Ponca City, Oklahoma Refinery December 9ConocoPhillips reported Friday a continuous release of more than 100 pounds of ammonia per day from its

No. 5 gasoline-producing fluidic catalytic cracking (FCC) unit, according to a notice filed with the U.S.

National Response Center. The filing says the release was discovered Thursday but requires no remedialresponse.

http://www.nrc.uscg.mil/reports/rwservlet?standard_web+inc_seq=997587


Pop Valve Trips, Causes Emissions at Alons 67,000 b/d Big Spring, Texas Refinery

December 11

http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162653Posted to DOE website 12-12-11.

Compressor Trip Leads to Flaring from Several Process Units at Motivas 285,000

b/d Port Arthur, Texas Refinery December 12Motiva reported that its Flare Gas Recovery 1 compressors tripped off on high-discharge pressure, resulting

in flaring from the refinerys fluid catalytic cracking units (FCCUs) 1 and 2, hydrocracking unit (HCU) 1,

hydrotreating unit (HTU) 4, and an alkylation unit. Operators cleared the compressors and reset them for

use.
http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162605http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162658http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162651http://www.nrc.uscg.mil/reports/rwservlet?standard_web+inc_seq=997587http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162653http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162653http://www.nrc.uscg.mil/reports/rwservlet?standard_web+inc_seq=997587http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162651http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162658http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162605


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Brief Power Outage Leads to Flaring at Valeros 310,000 b/d Port Arthur, Texas

Refinery December 12Valero Energy Corp. reported a 10-minute power outage Monday night that resulted in sulfur dioxide and

hydrogen sulfide releasing from the flare, according to a filing with the U.S. National Response Center.The release was secured and an investigation is underway, according to the filing.http://www.nrc.uscg.mil/reports/rwservlet?standard_web+inc_seq=997937


Houston Refining Reports Unit Upset at Its 270,600 b/d Houston, Texas Refinery

December 10Houston Refining reported an upset on its 435 Tail Gas Unit on Saturday morning, according to a filing

with the Texas Commission on Environmental Quality. Operators made adjustments to bring the emissionswithin permit limits.



Unspecified Unit Breakdown Leads to Flaring at ExxonMobils 149,500 b/dTorrance, California Refinery December 13ExxonMobil reported that an unspecified unit breakdown at its Torrance refinery has caused sulfur oxide toflare, according to news reports.

http://www.downstreamtoday.com/news/article.aspx?a_id=28842 Posted to DOE website 12-14-11.

Western Refining Resumes Normal Operations after Diesel Hydrotreater

Unexpectedly Shuts at Its 122,000 b/d El Paso, Texas Refinery December 13Western Refining reported Thursday that the diesel hydrotreater (DHT) at its El Paso refinery was back in

operation within a couple of hours after shutting unexpectedly on Tuesday. The shutdown caused excess

gases to route to flare, according to a filing with the Texas Commission on Environmental Quality.Operators cut the feed to the unit and followed procedures to safely bring the unit down before repairing

and restarting it, according to the filing.



http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162709http://www.nrc.uscg.mil/reports/rwservlet?standard_web+inc_seq=997937http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162698http://www.downstreamtoday.com/news/article.aspx?a_id=28842http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162780http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162780http://www.downstreamtoday.com/news/article.aspx?a_id=28842http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162698http://www.nrc.uscg.mil/reports/rwservlet?standard_web+inc_seq=997937http://www11.tceq.state.tx.us/oce/eer/index.cfm?fuseaction=main.getDetails&target=162709

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