ABSORBING SOLUTION FOR CLEANING OF GASES FROM HYDROGEN SULFIDE Russian patent published in 2002 - IPC

Abstract RU 2193913 C2

FIELD: oxidizing processes of gas cleaning from hydrogen sulfide with production of elementary sulfur. SUBSTANCE: absorbing solution has the following ratio of components, mas.%: oxidizer in the form of alkali metal chromate, 0.3-3.0 in terms of ion-chromic anhydride CrO-24

; natural bishofit, 37.0-41.4; alkali metal hydroxide at least 0.1, on hydroxyl ion and water basis, with solution pH 7-8.6. Absorbing solution possesses low freezing temperature to minus 40 C and capability of hydrogen sulfide neutralization with efficiency above 99.8% under temperature ranging from minus 10 C to plus 50 C. EFFECT: higher efficiency. 2 dwg, 2 tbl

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RU 2 193 913 C2

Authors

Salekh-Akhmed I.Sh.

Jurkiv N.I.

Tsigel'Nitskij I.G.

Dates

2002-12-10—Published

2000-02-21—Filed