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RE: Drum overheads


coker squirrel

We are experimenting with running the quench oil on temperature control.  We are looking for an optimum point so that we can keep the vapor line “wet” enough to prevent coking and at the same time hold down the recycle ratio and keep the Fractionator Flash Zone more consistent through slump (warm-up and drum switches).  At what temperature do we need to keep the coke drum overhead line cooled down to prevent coking?

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