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2 089 269

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C1

(51)

IPC

(21) (22)

Application

4298811/25, 1987-08-20

(22)

Actual filing date

1987-08-20

(45)

Published

1997-09-10

(72)

Inventor

Bobrova L.N.Noskov A.S.Matros Ju.Sh.Slavinskaja E.M.

(73)

Holder

Institut Kataliza So Ran

METHOD OF REMOVING NITROGEN OXIDES FROM EFFLUENT GASES Russian patent published in 1997 - IPC

Abstract RU 2089269 C1

FIELD: gas purification. SUBSTANCE: invention relates to purifying effluent gases in nitric acid production, acid denitration process, etc. Method consists in interaction of effluent gas with ammonia in catalyst bed using reversal of effluent gas flow direction each 4-24 h with two-three switch operations and increasing time interval between changes of gas flow direction by a factor of 1.3 to 5. EFFECT: enhanced purification efficiency. 2 dwg, 1 tbl

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RU 2 089 269 C1

Authors

Bobrova L.N.

Noskov A.S.

Matros Ju.Sh.

Slavinskaja E.M.

Dates

1997-09-10—Published

1987-08-20—Filed

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