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Strategies & Market Trends : The Epic American Credit and Bond Bubble Laboratory -- Ignore unavailable to you. Want to Upgrade?

To: regli who wrote (29264)	3/23/2005 6:23:41 PM
From: Elroy Jetson	Respond to of 110194

Refineries have a very limited range in the types of crude they can process. Attempting to process the wrong crude will almost immediately poison the catalysts designed for a different crude type. Certain changes are possible during routine shut-down maintenance, but crude stocks outside of that range require a completely different refinery. Chevron's California refineries have always processed heavy crude by isomaxing the heavy oil with natural gas to obtain gasoline. In contrast, Chevron's very expensive Pascagoula refinery is designed for low quality high sulfur / sour crudes. The New Jersey refinery can only process the highest quality light clean crudes. I have never known of a containment failure due to anything other than extended process run between shut-down maintenance and those few accidents caused by process control failure (valves, operators, computers). .