Disposal process and apparatus for oil refinery sludge

Details Disposal process and apparatus for oil refinery sludge Disposal process and apparatus for oil refinery sludge

C - Chemistry, Metallurgy

10

B

196/74

C10B 55/00 (2006.01) C10G 9/00 (2006.01)

Patent

CA 1318633

DISPOSAL PROCESS AND APPARATUS FOR OIL REFINERY SLUDGE Abstract of the Disclosure A process and apparatus for the recovery of oil from aqueous oil refinery waste involves mixing the waste with a fluidizing oil and evaporating the water from the mixture in a plurality of stages. The dewatered mixture is fed to a delayed coking system in which a conventional coker feedstock is being used. The heavy hydrocarbon portion of the dewatered mixture changes to coke and light hydrocarbon material, the inert solids become trapped in the coke, and the fluidizing oil vaporizes. A stream of heavy coker gas oil is fed from a fractionator in the delayed coking system to a fluidizing tank where it is mixed with the sludge to define the fluidizing oil. Another hot stream of hydrocarbon material from the coker fractionator is sent to the evaporator section to provide the heat for evaporation.

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