Treatment of sour hydrocarbon distillate with continuous recaust

Details Treatment of sour hydrocarbon distillate with continuous recaust Treatment of sour hydrocarbon distillate with continuous recaust

1998-02-09

1999-10-05

Griffin, Walter D.

Mineral oils: processes and products

Refining

Sulfur removal

208203, 208206, 208226, C10G 1902, C10G 1900

Patent

active

059618191

ABSTRACT:
An improved process is described for removing mercaptan sulfur from sour hydrocarbon distillate streams comprising of treating a sour hydrocarbon distillate stream in two oxidation zones within a reaction vessel. The first treatment occurs in the presence of a fiber bundle and the subsequent treatment over a bed of supported oxidation catalyst. The improvement comprises continuously keeping the bed in contact with an aqueous alkali metal hydroxide to maintain the catalyst in a caustic-wetted state, without interrupting the operation of the process.

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