Method for reducing fouling of coker furnaces

Details Method for reducing fouling of coker furnaces Method for reducing fouling of coker furnaces

2011-04-12

2011-04-12

Hill, Jr., Robert J (Department: 1774)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C208S04800Q, C208S0480AA

Reexamination Certificate

active

07922896

ABSTRACT:
A method for reducing furnace fouling in a delayed coking process comprising (a) supplying at least one feed to a delayed coking unit comprised of coker furnace, at least two coke drums and a coker fractionator, (b) increasing the aromaticity of the feed to produce a modified stream by combining with the feed upstream of the coker furnace at least one added stream selected from the group consisting of an aromatic gas oil, a hydrotreated aromatic gas oil and combinations thereof, (c) introducing the modified feed stream into the coker furnace, d) heating the modified feed stream to a coking temperature in the coker furnace to produce a heated modified stream, and e) transferring the heated modified stream from the coker furnace to a coke drum.

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