Composition and method for removing hydrogen sulfide from gas streams

Patent · Tue Jun 25 04:00:00 EDT 1991

OSTI ID:5749107

Stewart, R C

This patent describes a composition for oxidizing hydrogen sulfide to form elemental sulfur in the composition and for effecting settling of the elemental sulfur from the composition. It comprises an aqueous solution containing chelated water soluble polyvalent metal ions and at least one water soluble nonionic surfactant having an HLB of from 8 to 10. This patent also describes a composition for oxidizing hydrogen sulfide to form elemental sulfur in the composition and for effecting settling of the elemental sulfur from the composition, the composition comprising an aqueous solution containing chelated water soluble polyvalent metal ions and at least one water soluble ethoxylated alkyl phenol surfactant having an HLB of from about 8 to about 10, in which the HLB is defined as E/5 where E is ethylene oxide weight percent.

• Assignee: Amoco Corp., Chicago, IL (United States)
• Patent Number(s): US 5026503; A
• Application Number: PPN: US 7-383844
• OSTI ID: 5749107
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION CONTROL
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CONTROL
DESULFURIZATION
ELEMENTS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NONMETALS
POLLUTION CONTROL
RECOVERY
SULFIDES
SULFUR
SULFUR COMPOUNDS
WASTES