Double loop liquid-liquid H.sub.2 S removal process

Details Double loop liquid-liquid H.sub.2 S removal process Double loop liquid-liquid H.sub.2 S removal process

1995-01-31

1997-07-15

Jones, Deborah

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423228, 423232, 4235762, 4235766, 423220, C01B 1716

Patent

active

056480547

ABSTRACT:
A process and system for removal of hydrogen sulfide from a hydrogen sulfide-containing gaseous stream comprising contacting the hydrogen sulfide-containing gaseous stream with a nonaqueous phase sorbent under conditions suitable for forming a hydrogen sulfide-laden sorbent and a clean gaseous stream. The hydrogen sulfide-laden sorbent is mixed with an aqueous phase redox coupled, regenerating the nonaqueous phase sorbent, reducing the aqueous phase redox couple, and forming sulfur. The sulfur is separated from the mixture. The reduced aqueous phase redox couple is extracted from the mixture and regenerated with an oxidizing agent or electrochemical cell.

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