Mineral oils: processes and products – Refining – Sulfur removal
Patent
1989-06-21
1991-05-14
Davis, Curtis R.
Mineral oils: processes and products
Refining
Sulfur removal
208208R, 208254R, 208289, 423229, C10G 2920
Patent
active
050153641
ABSTRACT:
A process is disclosed for operating a refinery gas plant such as the unsaturated gas plant of a catalytic hydrocarbon conversion process that results in a reduction of the corrosive effect of acid gases on the gas plant vessels and equipment. The process comprises contacting acidic hydrocarbon feedstreams to an unsaturated gas plant separator zone with lean acid gas absorbing absorbent in an absorbtion zone comprising at least one liquid absorber bed and one vapor absorber bed. The liquid and vapor absorber beds are located upstream of the separator zone. The feedstreams to the gas plant comprise unstabilized, or wild, liquid gasoline and liquid and vapor output streams from the liquid-vapor separator for inter-stage wet gas compressor of the conversion process main fractionator. Accordingly, these feedstreams are deacidified before separation in the USGP deethanizer-absorber, sponge absorber, and debutanizer. This also eliminates the need for deacidification of the gas plant product stream.
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Davis Curtis R.
Diemler William
Hobbes Laurence P.
McKillop Alexander J.
Mobil Oil Corporation
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