Binh T Le

US Patent:

49563254, Sep 11, 1990

Filed:

Mar 23, 1989

Appl. No.:

7/327557

Inventors:

Binh Ngoc Le - Humble TX

Assignee:

Merichem Company - Houston TX

International Classification:

B01J 3112

US Classification:

502163

Abstract:

The present invention is directed to impregnating a support material with a metal phthalocyanine oxidation catalyst dissolved in monoethanol amine. More specifically, the invention is directed to the method of impregnating a catalyst support such as carbon particles with an aqueous solution of monoethanol amine wherein the monoethanol amine solvent is present in an amount from about 0. 25% to about 50% by weight.

US Patent:

47537221, Jun 28, 1988

Filed:

Jun 17, 1986

Appl. No.:

6/875339

Inventors:

Binh N. Le - Humble TX
Gilbert D. Veasey - Dickinson TX

Assignee:

Merichem Company - Houston TX

International Classification:

C10G 2900

US Classification:

208207

Abstract:

An improved method of treating streams having mercaptan or mercaptan-based compounds therein particularly adapted for the processes of sweetening sour hydrocarbons and regenerating spent caustic solutions is described. The invention comprises contacting a first stream having the mercaptan or mercaptan-based compounds therein with a second stream in the presence of effective amounts of a nitrogen-based promoter to promote the extraction and/or the catalytic oxidation of the mercaptan compounds therein. The invention herein disclosed and described is applicable in a wide variety of apparatus and processes adapted for sweetening and regeneration operations.