ADSORPTION-CATALYTIC SYSTEM FOR TREATING GASES TO REMOVE TOXIC IMPURITIES Russian patent published in 2005 - IPC

FIELD: gas treatment.

SUBSTANCE: invention relates to novel catalysts, which can be, in particular, used in automobile engine exhaust treatment, in processes of deep oxidation of toxic organic impurities in industrial emission gases, and in other applications. Adsorption-catalytic system, including granules of sorbent capable of sorbing at least one of reagents and catalyst, represents geometrically structured system wherein catalyst is made in the form of microfibers 5-20 μm in diameter, sorbent granules are disposed inside catalyst, and size ratio of sorbent granules to catalyst microfibers is at least 10:1. Catalyst microfibers are structured in the form of woven, knitted, or pressed material. Gas treatment process involving use of such system is based on that gaseous reaction mixture to be treated is passed through above-defined system while periodically varying temperature of mixture, in particular raising it, to accomplish or regeneration of sorbent.

EFFECT: enhanced process simplicity and reliability (simple process government system, absence of mechanical stream switching devices, reduced power consumption, and enabled continuous gas treatment.

2 cl, 2 ex