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Delayed Coker Furnace Flow Rate and Coke Formation Rate

Presented By

Mitchell Moloney - REFCOMM /


Refiners and licensors use various numerical gauges to maintain reasonable operational ranges for their Delayed Coker Furnaces. Mass velocity, cold oil velocity, and wt% velocity media are all easily calculated numbers that refiners use to set operating ranges for furnace pass flow rates. More difficult calculations are velocity or Equivalent Residence Time, given that an understanding of the vapor-liquid ratio and their associated flowing densities, in a given part of the coil, is needed. This presentation will discuss how to apply basic engineering principles to perform these various calculations, to better set reliable operating ranges and better benchmark furnace operations.

Mitch MaloneyMitch graduated from Princeton University in 1979 with a Bachelors Degree in Chemical Engineering and is a registered PE in Texas. He worked with ExxonMobil as a Heavy Oil Upgrading Specialist for 30 of his 40-year career with the company. He now works as a Delayed Coking and Process Engineering consultant for companies in the oil refining industry. 

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