Catalytic composite, method of manufacture, and process for use

Details Catalytic composite, method of manufacture, and process for use Catalytic composite, method of manufacture, and process for use

1979-08-10

1981-10-06

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431C, 252431N, 252430, 208206, 208207, B01J 3122

Patent

active

042934427

ABSTRACT:
A supported metal chelate catalyst, a method of preparing said catalyst, and a process of using said catalyst is disclosed. The catalyst is particularly useful in the treatment of a sour petroleum distillate or fraction to remove mercaptans contained therein. In preparing the catalyst, a solid adsorptive support is contacted with a solution of a metal chelate. The resulting composite is thereafter contacted at an elevated temperature with a substituted ammonium compound.
In one embodiment, the metal chelate, cobalt phthalocyanine monosulfonate, is contacted with the adsorptive support, activated charcoal, raised to a temperature of about 100.degree. C., and then contacted with the substituted ammonium compound, dimethylbenzylalkylammonium chloride. In another embodiment, the catalyst of the invention can be contacted with a mercaptan-containing petroleum distillate in admixture with an oxidizing agent and an alkaline solution to convert the mercaptans to innocuous disulfide.

REFERENCES:
patent: 2988500 (1961-06-01), Gleim et al.
patent: 3108081 (1963-10-01), Gleim et al.
patent: 3692842 (1973-09-01), Massie
patent: 4124493 (1978-11-01), Frame

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