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2 071 817

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C1

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IPC

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Application

5025641/26, 1992-02-04

(22)

Actual filing date

1992-02-04

(45)

Published

1997-01-20

(72)

Inventor

Sobolev V.I.Voskresenskaja T.P.Kharitonov A.S.Pirjutko L.V.Parmon V.N.Panov G.I.

(73)

Holder

Institut Kataliza So Ran

METHOD OF PURIFYING GASES FROM NITROGEN(I) OXIDE Russian patent published in 1997 - IPC

Abstract RU 2071817 C1

FIELD: gas purification. SUBSTANCE: invention relates to purification of exhaust gases from N2O in relatively mild conditions (moderate temperatures, small contact time) with no noxious side products' formation. Gas is freed from N2O by way of its breakdown in presence of a silicate catalyst at 250-800 C and contact time 0.05- 10 s. As silicate catalysts, high-silica zeolite of general formula yEI2On•x•Fe2O3•SiO2 are employed, where y = 10-5-5•10-2, x = 10-5-2•10-2, EI is at least one element from 2,3,4, and 5 period, and n is valency of element. Also employed may be iron-silicates of general formula xFe2O3•SiO2 where x = 10-5-2•10-2. EFFECT: avoided noxious side products' formation.

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RU 2 071 817 C1

Authors

Sobolev V.I.

Voskresenskaja T.P.

Kharitonov A.S.

Pirjutko L.V.

Parmon V.N.

Panov G.I.

Dates

1997-01-20—Published

1992-02-04—Filed

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