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Reply To: Coking rate vs. Heat flux

Home Forums Coking Technical Coking rate vs. Heat flux Reply To: Coking rate vs. Heat flux

#28035

Mike Kimbrell
Participant

Coke formation is very dependent on temperature. The amount of coke produced is directly proportional to the residence time and is exponential with temperature. Higher feed rates will require higher firing rates that increases the heat flux in the radiant section of the heater. The higher feed rates will lower the residence time in the heater, but not enough to off-set the increase in the oil film temperature, so the heater fouling rates will increase.

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