Method for removing hydrogen sulfide from gas streams

Patent · Mon Feb 20 23:00:00 EST 1984

OSTI ID:6629257

Gowdy, H W; Fenton, D M

A hydrogen sulfide removal and conversion method in which a hydrogen sulfide-containing gas stream is contacted with a regenerable washing solution having a pH between about 5 and about 10 and containing solubilized vanadium, thiocyanate ions, a carboxylate complexing agent, one or more water-soluble quinones and one or more water-soluble nonquinone aromatic compounds capable of solubilizing tetravalent vanadium. The absorbed hydrogen sulfide is converted to elemental sulfur which, after oxidative regeneration of the washing solution, is separated from the regenerated solution.

• Assignee: Union Oil Company of California
• Patent Number(s): US 4432962
• OSTI ID: 6629257
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
AROMATICS
CARBONIC ACID DERIVATIVES
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CLEANING
CYANATES
DESULFURIZATION
DISPERSIONS
ELEMENTS
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INDUSTRIAL PLANTS
IONS
MAXIMUM PERMISSIBLE LEVEL
METALS
MIXTURES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
PH VALUE
POLLUTION ABATEMENT
PROCESS SOLUTIONS
REDUCING AGENTS
REGENERATION
REMOVAL
SAFETY STANDARDS
SOLUTIONS
STANDARDS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENTS
VANADIUM
WASHING
WASTES