Tags: decoking crew

Heading Up

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As soon as the cutting water pump is shutdown, the decoking crew immediately begins replacing the top and bottom heads. Both heads must be worked on simultaneously. Flange surfaces are prepared while the coke cutting is in progress. On this basis, heading up the coke drum and reconnect­ing the resid feed line takes about 30 …

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Drainage Problems

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If the drum is not draining properly, the decoking crew should proceed as follows: Wait as long as possible without jeopardizing the cycle. Set the bottom carriage—which is used to slide the bottom head out from under the coke drum—up against the head. Remove all but four bolts. Then loosen the remaining four bolts so …

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