Process for delayed coking of coking feedstocks

Details Process for delayed coking of coking feedstocks Process for delayed coking of coking feedstocks

C - Chemistry, Metallurgy

10

B

202/25

C10B 55/00 (2006.01)

Patent

CA 2002587

A process for producing coke from a combined feed. The combined feed is initially provided as a first portion which comprises easily cokable components and a second portion which is essentially free of easily cokable components. The first portion is heated to a temperature lower than that normally employed by a coking heater in a delayed coking process. The second portion is heated to a temperature at which a combination of the first and second portion provides combined feed at coking temperatures. The combined feed is then subjected to coking conditions. The first portion, in one embodiment, may be comprised of a fresh feed (10") and the second portion may be comprised of a coker recycle. In another alternative, a fresh feed (10') and a coker recycle are combined and fractionated to produce the first portion and the second portion. The first portion may include components which boil above a temperature of about 482°C, and the second portion may be essentially free of easily cokable components.

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