METHOD FOR CLEANING GASES FROM HYDROGEN SULFIDE Russian patent published in 1996 - IPC

Abstract SU 1341808 A1

FIELD: gas cleaning. SUBSTANCE: method for cleaning gases from hydrogen sulfide includes contacting of gas with aqueous solution of ethanolamine in the presence of corrosion inhibitor in form of still bottoms of column of fractional distillation of products of hydrogenation of N-dimethylaminopropionitrile in the amount of 0.3% of solution mass. With gas separation efficiency of 99.9%, loss of ductility of carbon steel is reduced by 8-10%, and consumption of corrosion inhibitor decreases by 1.6-16 times. EFFECT: reduced rate of corrosion of equipment and corrosion inhibitor consumption.

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SU 1 341 808 A1

Authors

Fakhriev A.M.

Khafizov R.N.

Khajrullin R.G.

Teljashev G.G.

Sakharov V.D.

Safin R.Ju.

Dates

1996-01-27—Published

1986-02-18—Filed