Alexander E Weir

US Patent:

43691676, Jan 18, 1983

Filed:

Jan 9, 1978

Appl. No.:

5/868197

Inventors:

Alexander Weir - Playa Del Rey CA

International Classification:

B01D 4700
B01J 800
C01B 1700
C01B 2100

US Classification:

423210

Abstract:

Stack gases containing pollutant gases and particulate matter are passed through a defined flow path into which at least one selected liquid reagent is introduced in a prescribed manner to intimately contact the stack gases therein. The liquid reagent scrubs the stack gases and thereby removes a substantial portion of the pollutant gases and particulate matter therefrom. One reagent may be used or several different reagents may be employed at different stages of the flow path to best effect removal of various different pollutants contained within the stack gases. Removal of sulfur dioxide is accomplished by a highly reactive and substantially non-abrasive reagent, such as a lime solution and such solution further effects removal of materials in trace amounts in the stack gases such as mercury, bergillium and vanadium. Removal of nitric oxide and other materials in trace amounts is also accomplished by the process which includes as a reagent an oxidant.

US Patent:

41029828, Jul 25, 1978

Filed:

Jun 13, 1974

Appl. No.:

5/478871

Inventors:

Alexander Weir - Playa Del Rey CA

International Classification:

C01B 1700
C01B 2100

US Classification:

423242

Abstract:

Stack gases containing pollutant gases and particulate matter are passed through a defined flow path into which at least one selected liquid reagent is introduced in a prescribed manner to intimately contact the stack gases therein. The liquid reagent scrubs the stack gases and thereby removes a substantial portion of the pollutant gases and particulate matter therefrom. One reagent may be used or several different reagents may be employed at different stages of the flow path to best effect removal of various different pollutants contained within the stack gases. Removal of sulfur dioxide is accomplished by a highly reactive and substantially non-abrasive reagent, such as a lime solution and such solution further effects removal of materials in trace amounts in the stack gases such as mercury, bergillium and vanadium. Removal of nitric oxide and other materials in trace amounts is also accomplished by the process which includes as a reagent an oxidant.