REFINING Premcor Increases Hydrotreater Production 25% Through Lubrication Program RESULTS • Refinery operating at all time maximum throughput • Unscheduled shutdowns eliminated in the past 3 years • Monthly compressor availability increased APPLICATION Hydrotreater unit lubrication analysis and management CUSTOMER Premcor Port Arthur, TX, fuel refinery with 250,000 barrels per day capacity CHALLENGE Failure of critical machinery can mean an expensive interruption of production. Residue buildup on compressor valves demanded monthly system shutdowns for service. The downtime due to valve failures reduced hydrotreater production by at least 25 percent at a time when prod- uct values were at an all time high. SOLUTION Oil refining is by nature a greasy business, so it was easy to assume that

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