Robin M Stewart

US Patent:

6403044, Jun 11, 2002

Filed:

Feb 26, 1999

Appl. No.:

09/258659

Inventors:

John E. Litz - Lakewood CO
Thomas Broderick - Arvada CO
Robin M. Stewart - Arvada CO

Assignee:

ADA Technologies, Inc. - CO

International Classification:

C01G 1300

US Classification:

423101, 4235661, 588256, 210914

Abstract:

The present invention is directed to a system and method for converting hazardous speciated and elemental mercury-containing wastes to environmentally acceptable wastes by mixing the wastes in the presence of a polysulfide, water, and an mercury-reactive material, such as elemental sulfur.

US Patent:

20070254807, Nov 1, 2007

Filed:

May 1, 2007

Appl. No.:

11/742848

Inventors:

Ramon E. Bisque - Golden CO, US
George Rouse - Golden CO, US
Kenneth E. Baldrey - Denver CO, US
Robin Stewart - Arvada CO, US

Assignee:

ADA ENVIRONMENTAL SOLUTIONS, LLC - Littleton CO

International Classification:

C01B 31/08

US Classification:

502437

Abstract:

The present invention is directed to a process for manufacturing a carbonaceous sorbent, particularly activated carbon, that uses lower average residence times and/or higher operating temperatures to produce activated carbon having favorable properties for mercury collection.

US Patent:

58337369, Nov 10, 1998

Filed:

Aug 6, 1997

Appl. No.:

8/907254

Inventors:

Michael Dean Durham - Castle Rock CO
Richard John Schlager - Aurora CO
Timothy George Ebner - Westminster CO
Robin Michele Stewart - Arvada CO
David E. Hyatt - Denver CO
Cynthia Jean Bustard - Littleton CO
Sharon Sjostrom - Denver CO

Assignee:

ADA Environmental Solutions, LLC - Englewood CO

International Classification:

B03C 3013

US Classification:

95 71

Abstract:

The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting a composition containing an adhesive with the gas stream; collecting the undesired particles and adhesive on a collection surface to form an aggregate comprising the adhesive and undesired particles on the collection surface; and removing the agglomerate from the collection zone. The composition may then be atomized and injected into the gas stream. The composition may include a liquid that vaporizes in the gas stream. After the liquid vaporizes, adhesive particles are entrained in the gas stream. The process may be applied to electrostatic precipitators and filtration systems to improve undesired particle collection efficiency.

US Patent:

58556494, Jan 5, 1999

Filed:

Aug 4, 1997

Appl. No.:

8/808034

Inventors:

Michael Dean Durham - Castle Rock CO
Richard John Schlager - Aurora CO
Timothy George Ebner - Westminster CO
Robin Michele Stewart - Arvada CO
David E. Hyatt - Denver CO
Cynthia Jean Bustard - Littleton CO
Sharon Sjostrom - Denver CO

Assignee:

ADA Technologies Solutions, LLC - Englewood CO

International Classification:

B03C 3013

US Classification:

95 71

Abstract:

The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting a composition containing an adhesive with the gas stream; collecting the undesired particles and adhesive on a collection surface to form an aggregate comprising the adhesive and undesired particles on the collection surface; and removing the agglomerate from the collection zone. The composition may then be atomized and injected into the gas stream. The composition may include a liquid that vaporizes in the gas stream. After the liquid vaporizes, adhesive particles are entrained in the gas stream. The process may be applied to electrostatic precipitators and filtration systems to improve undesired particle collection efficiency.

US Patent:

54095220, Apr 25, 1995

Filed:

Apr 20, 1994

Appl. No.:

8/230055

Inventors:

Michael D. Durham - Castle Rock CO
David E. Hyatt - Littleton CO
Robin M. Stewart - Arvada CO
Richard J. Schlager - Aurora CO

Assignee:

ADA Technologies, Inc. - Englewood CO

International Classification:

B01D 6100

US Classification:

75670

Abstract:

The present invention discloses an apparatus and process for removing particulate material and mercury-containing compounds from a gas stream. The apparatus includes a particulate removal means to remove the particulate material and a mercury collection means to remove the mercury-containing compounds. The apparatus can selectively remove particulate material and mercury-containing compounds which may be disposed of separately. The mercury collection means is positioned downstream of the particulate removal means and includes a regenerable sorbent. The sorbent is regenerated by elevating the temperature of the sorbent to release the mercury-containing compounds from the sorbent.

US Patent:

58939431, Apr 13, 1999

Filed:

Jul 26, 1993

Appl. No.:

8/097455

Inventors:

Michael Dean Durham - Castle Rock CO
Richard John Schlager - Aurora CO
Timothy George Ebner - Westminster CO
Robin Michele Stewart - Arvada CO
Cynthia Jean Bustard - Littleton CO

Assignee:

ADA Environmental Solutions, LLC - Englewood CO

International Classification:

B03C 3013

US Classification:

95 65

Abstract:

The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting a composition containing an adhesive with the gas stream; collecting the undesired particles and adhesive on a collection surface to form an aggregate comprising the adhesive and undesired particles on the collection surface; and removing the agglomerate from the collection zone. The composition may then be atomized and injected into the gas stream. The composition may include a liquid that vaporizes in the gas stream. After the liquid vaporizes, adhesive particles are entrained in the gas stream. The process may be applied to electrostatic precipitators and filtration systems to improve undesired particle collection efficiency.

US Patent:

20190282995, Sep 19, 2019

Filed:

May 31, 2019

Appl. No.:

16/427819

Inventors:

- Highlands Ranch CO, US
Kenneth E. Baldrey - Denver CO, US
Robin M. Stewart - Arvada CO, US
George Rouse - Golden CO, US
Natalie Caro - Lakewood CO, US

International Classification:

B01J 20/16
C04B 22/06
B01J 20/04
B09B 3/00
C04B 28/36
C04B 18/02

Abstract:

An agglomerate is provided that can include an aluminosilicate (ash) base material and one or more of a binding agent or leach reduction agent. Each of the agglomerate and binding agent can include no more than about 25 wt. % cement.

US Patent:

20160318000, Nov 3, 2016

Filed:

Jul 8, 2016

Appl. No.:

15/205766

Inventors:

- Highlands Ranch CO, US
Kenneth E. Baldrey - Denver CO, US
Robin M. Stewart - Arvada CO, US
George Rouse - Golden CO, US
Natalie Caro - Lakewood CO, US

International Classification:

B01J 20/16
B09B 3/00
B01J 20/04
C04B 28/36
C04B 22/06

Abstract:

An agglomerate is provided that can include an aluminosilicate (ash) base material and one or more of a binding agent or leach reduction agent. Each of the agglomerate and binding agent can include no more than about 25 wt. % cement.