Joshua K Larson

US Patent:

6610263, Aug 26, 2003

Filed:

Jul 31, 2001

Appl. No.:

09/919600

Inventors:

John E. Pahlman - late of Bloomington MN
Steve C. Carlton - Emily MN
Ray V. Huff - Florence AL
Charles F. Hammel - Escondido CA
Richard M. Boren - Bakersfield CA
Kevin P. Kronbeck - Baxter MN
Joshua E. Larson - Burnsville MN
Patrick A. Tuzinski - Bloomington MN
Steve G. Axen - Golden CO

Assignee:

EnviroScrub Technologies Corporation - Minneapolis MN

International Classification:

B01D 5360

US Classification:

4232391, 42324406, 423393, 423395, 423400, 423522, 423544, 423548, 423DIG 5

Abstract:

System for removal of targeted pollutants, such as oxides of sulfur, oxides of nitrogen, mercury compounds and ash, from combustion and other industrial process gases and processes utilizing the system. Oxides of manganese are utilized as the primary sorbent in the system for removal or capture of pollutants. The oxides of manganese are introduced from feeders into reaction zones of the system where they are contacted with a gas from which pollutants are to be removed. With respect to pollutant removal, the sorbent may interact with a pollutant as a catalyst, reactant, adsorbent or absorbent. Removal may occur in single-stage, dual-stage, or multi-stage systems with a variety of different configurations and reaction zones, e. g. , bag house, cyclones, fluidized beds, and the like. Process parameters, particularly system differential pressure, are controlled by electronic controls to maintain minimal system differential pressure, and to monitor and adjust pollutant removal efficiencies.

US Patent:

7033548, Apr 25, 2006

Filed:

Sep 23, 2002

Appl. No.:

10/252270

Inventors:

Steve C. Carlton - Emily MN, US
Ray V. Huff - Florence AL, US
Charles F. Hammel - Escondido CA, US
Richard M. Boren - Bakersfield CA, US
Kevin P. Kronbeck - Baxter MN, US
Joshua E. Larson - Burnsville MN, US
Patrick A. Tuzinski - Bloomington MN, US
Steve G. Axen - Golden CO, US

Assignee:

Enviroscrub Technologies Corporation - Bloomington MN

International Classification:

B01D 53/46
B01D 53/50
B01D 53/56

US Classification:

422170, 422171, 422178, 423210, 4232155, 4232391, 42324401, 423DIG 5, 95 19, 95 21, 96113, 96114

Abstract:

System for removal of targeted pollutants, such as oxides of sulfur, oxides of nitrogen, mercury compounds and ash, from combustion and other industrial process gases and processes utilizing the system. Oxides of manganese are utilized as the primary sorbent in the system for removal or capture of pollutants. The oxides of manganese are introduced from feeders into reaction zones of the system where they are contacted with a gas from which pollutants are to be removed. With respect to pollutant removal, the sorbent may interact with a pollutant as a catalyst, reactant, adsorbent or absorbent. Removal may occur in single-stage, dual-stage, or multi-stage systems with a variety of different configurations and reaction zones, e. g. , bag house, cyclones, fluidized beds, and the like. Process parameters, particularly system differential pressure, are controlled by electronic controls to maintain minimal system differential pressure, and to monitor and adjust pollutant removal efficiencies.

US Patent:

7247279, Jul 24, 2007

Filed:

Jun 9, 2003

Appl. No.:

10/458763

Inventors:

Steven C. Carlton - Emily MN, US
Ray V. Huff - Hereford AZ, US
Charles F. Hammel - Escondido CA, US
Richard M. Boren - Bakersfield CA, US
Kevin P. Kronbeck - Baxter MN, US
Joshua E. Larson - Burnsville MN, US
Patrick A. Tuzinski - Bloomington MN, US
Steve G. Axen - Golden CO, US

Assignee:

EnviroScrub Technologies Corporation - Minneapolis MN

International Classification:

B01D 50/00

US Classification:

422168

Abstract:

System for removal of targeted pollutants from combustion and other industrial process gases and processes utilizing the system. Metal oxides are introduced from feeders into reaction zones of the system where they are contacted with a gas from which pollutants are to be removed. With respect to pollutant removal, the sorbent may interact with a pollutant as a catalyst, reactant, adsorbent or absorbent. Removal may occur in single-stage, dual-stage, or multi-stage systems with a variety of different configurations and reaction zones, e. g. , bag house, cyclones, fluidized beds, and the like. Process parameters, particularly system differential pressure, are controlled by electronic controls to maintain minimal system differential pressure, and to monitor and adjust pollutant removal efficiencies. Reacted sorbent may be removed from the reaction action zones for recycling or recycled or regenerated with useful and marketable by-products being recovered during regeneration.