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2 165 289

(13)

(51)

IPC

(21) (22)

Application

98119654/12, 1998-10-30

(24)

Start date

1998-10-30

(22)

Actual filing date

1998-10-30

(45)

Published

2001-04-20

(72)

Inventor

Mikhajlov M.Ju.

(73)

Holder

Ehlektroehnergeticheskaja Assotsiatsija Edinyj Ehlektroehnergeticheskij Kompleks"Aktsionernoe Obshchestvo Otkrytogo Tipa Institut Im. G.M. Krzhizhanovskogo"

METHOD OF REMOVING NITROGEN OXIDES FROM EMISSION GASES Russian patent published in 2001 - IPC

Abstract RU 2165289 C2

FIELD: gas treatment. SUBSTANCE: gas is treated with alkaline absorption solution containing chelate compound Fe-EDTA, after which absorption solution is regenerated by sulfur dioxide and calcium-containing reducing agent to precipitate calcium sulfate, the two regenerating substances being prepared by thermal decomposition on carbon of precipitated calcium sulfate formed in the course of regeneration of absorption solution. EFFECT: enabled closed process cycle requiring no high-toxicity reagents. 3 cl, 1 dwg

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RU 2 165 289 C2

Authors

Mikhajlov M.Ju.

Dates

2001-04-20—Published

1998-10-30—Filed