Sulfur dioxide removal from gas streams

Patent · Tue Nov 11 00:00:00 EST 1986

OSTI ID:7193988

Urban, P; Ginger, E A

A process is described for removal of sulfur dioxide pollutant gas from gas stream which comprises contacting the gas stream with pretreated shale in the form of an aqueous solution of aluminum sulfate including from about 0.1 to about 2.0% by weight of the pretreated shale. The pretreatment of the shale comprises the heating of the shale in the presence of a gas unable to support combustion at a temperature in a range of from about 340/sup 0/C. to about 480/sup 0/C.

• Assignee: UOP, Inc., Des Plaines, IL
• Patent Number(s): US 4622213
• OSTI ID: 7193988
• Resource Relation: Patent File Date: Filed date 9 Sep 1985
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
FLUE GAS
DESULFURIZATION
SULFUR DIOXIDE
REMOVAL
ALUMINIUM SULFATES
AQUEOUS SOLUTIONS
HEATING
HIGH TEMPERATURE
QUANTITY RATIO
SHALES
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DISPERSIONS
GASEOUS WASTES
MIXTURES
OXIDES
OXYGEN COMPOUNDS
ROCKS
SEDIMENTARY ROCKS
SOLUTIONS
SULFATES
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)