Catalytic oxidation of petroleum distillates with charcoal and w

Details Catalytic oxidation of petroleum distillates with charcoal and w Catalytic oxidation of petroleum distillates with charcoal and w

1977-08-08

1978-10-24

Crasanakis, George

Mineral oils: processes and products

Refining

Sweetening

C10G 2706

Patent

active

041219996

ABSTRACT:
A catalytic process for treating sour petroleum distillates is disclosed. A sour petroleum distillate containing phenolic catalyst toxins or toxin precursors are pretreated in contact with an oxidizing agent and a charcoal adsorbent at conditions to oxidize a portion of the mercaptan content of said distillate to disulfides, and to adsorb substantially all of said phenolic toxin and toxin precursors from the distillate. The distillate is thereafter treated in an alkaline environment in contact with an oxidizing agent and a supported metal phthalocyanine catalyst to oxidize the residual mercaptans contained therein to disulfides.

REFERENCES:
patent: 3371031 (1968-02-01), Strong
patent: 4033860 (1977-07-01), Carlson

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