Technique for surface oxidation of activated carbon

Details Technique for surface oxidation of activated carbon Technique for surface oxidation of activated carbon

1986-06-24

1987-10-27

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 74, 55387, 502416, B01D 5304

Patent

active

047027495

ABSTRACT:
A mild oxidizing acid wash of activated carbon in the presence of an oxidation catalyst produces an adsorbent, with a large carboxyl IR spectra peak, having a favorable water adsorption isotherm that can be used for both pressure swing adsorption, PSA, or thermal swing adsorption, TSA, drying of gases. The oxidation catalyst is a metal salt wherein the metal is selected from the group consisting of copper, chromium and nickel.

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Mahajan et al., "Surface-Modified Carbons for the Drying of Gas Streams," Separation Science & Technology, 17(8), pp. 1019-1025, 1982.

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