Metallgesellschaft Aktiengesellschaft

Winfried Zeschmar

Alexander Doerges

Johann Schlauer

Heinz Hiller

Georg Kempf

Vaclav Svoboda

A process for the selective removal of hydrogen sulfide from a gas containing hydrogen sulfide and carbon dioxide wherein said gas is contacted at superatmospheric pressure with an alkali metal carbonate solution, the resultant solution which contains hydrosulfide and bicarbonate is subjected to pressure reduction, the total alkali metal bicarbonate content of the resultant solution is adjusted so that it is at least 55% of the total alkali content of the solution and the said solution is then stripped and recycled to the hydrogen sulfide absorption step.

Growing community of inventors

Frankfurt am Main, Germany

Winfried Zeschmar