Process for the removal of hydrogen sulfide and mercaptans from liquid and gaseous streams
A process is provided for removing hydrogen sulfide and alkyl mercaptans from fluid streams by reaction with oxygen in the presence of a metal amino acid chelate in aqueous solution containing an amine, converting hydrogen sulfide to sulfur and alkyl mercaptans to dialkyl disulfides, and separating these from the aqueous metal chelate solution. A process is also provided for removing hydrogen sulfide and alkyl mercaptans from fluid streams in which the gaseous or liquid stream is dispersed in aqueous metal chelate solution in a fine dispersion short of foam formation and passed through a reaction zone at a high flow velocity, where hydrogen sulfide is catalytically oxidized to sulfur, and alkyl mercaptans to dialkyl disulfides, and then into a relatively wide quiescent zone where the dispersion breaks, the gases are separated, and the metal chelate solution recovered.
- Assignee:
- Rhodia, Inc.
- Patent Number(s):
- US 4036942
- OSTI ID:
- 6933781
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION CONTROL
AMINES
AMINO ACIDS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHELATES
COLLOIDS
COMPLEXES
CRYOGENIC FLUIDS
DISPERSIONS
ELEMENTS
EQUIPMENT
FLUIDS
FOAMS
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
LIQUIDS
METALS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SEPARATION PROCESSES
SULFIDES
SULFUR
SULFUR COMPOUNDS
THIOLS