Q & A > Question Details
What is the temperature at which coking starts in Delayed Coker?
17/07/2019 A: Joel Kaye, Retired from UOP & Tesoro, kaye13@gmail.com
Coking does not have a minimum start temperature, but the coke formation rate drops with decreasing temperature. At temperatures below 900 F coking occurs at slower rates.
24/05/2019 A: Sridhar Balakrishnan, Bharat Oman Refineries Limited , laksrid@yahoo.com
Generally coking starts at 450 to 500 deg. C . in delayed coker .
21/05/2019 A: Prabhakar Reddy, Suncor Energy Inc, preddy@suncor.com
Typical target delayed coking furnace coil outlet temperatures ~ 930-940F, which give you a drum vapor outlet temperature of 820-830 F (unquenched vapor). You can target lower temperatures ~ 890-900F and you could end up with a tarry drum scenario. Low COT will also impacts your overall liquid yield.