Darrell J Elliott

US Patent:

7981172, Jul 19, 2011

Filed:

Apr 23, 2009

Appl. No.:

12/428660

Inventors:

David J. Edlund - Hopkinton MA, US
Darrell J. Elliott - Bend OR, US
Alan E. Hayes - Bend OR, US
William A. Pledger - Bend OR, US
Curtiss Renn - Bend OR, US
Redwood Stephens - Bend OR, US
R. Todd Studebaker - Chubbuck ID, US

Assignee:

Idatech, LLC - Bend OR

International Classification:

C01B 3/36
C01B 6/24
C01B 3/02
C01B 3/24
C01B 3/26
B01J 7/00

US Classification:

48197R, 48 61, 423644, 4236481, 423650, 423651

Abstract:

Systems and methods for producing hydrogen gas with a fuel processing system that includes a hydrogen-producing region that produces hydrogen gas from a feed stream and a heating assembly that consumes a fuel stream to produce a heated exhaust stream for heating the hydrogen-producing region. In some embodiments, the heating assembly heats the hydrogen-producing region to at least a minimum hydrogen-producing temperature. In some embodiments, the rate at which an air stream is delivered to the heating assembly is controlled to selectively increase or decrease the temperature of the heated exhaust stream. In some embodiments, the feed stream and the fuel stream both contain a carbon-containing feedstock and at least 25 wt % water. In some embodiments, the feed and fuel streams have the same composition.

US Patent:

20030223926, Dec 4, 2003

Filed:

Apr 10, 2003

Appl. No.:

10/412709

Inventors:

David Edlund - Bend OR, US
Darrell Elliott - Bend OR, US
Alan Hayes - Bend OR, US
William Pledger - Sisters OR, US
Curtiss Renn - Bend OR, US
Redwood Stephens - Bend OR, US
R. Studebaker - Bend OR, US

International Classification:

B01J008/02

US Classification:

422/198000, 422/211000

Abstract:

Diffusion and atomizing burner assemblies and fuel processing and fuel cell systems containing the same. The burner assembly receives at least one liquid and/or gaseous fuel stream, mixes the stream with air, and combusts the mixed stream to provide heat for a fuel processor. In some embodiments, the burner assembly receives at least one combustible fuel stream produced by the fuel processing and/or fuel cell system. In some embodiments, the burner assembly receives a fuel stream having the same composition as a stream that is delivered for non-combustion purposes to another portion of the fuel processing and/or fuel cell system. In some embodiments, the burner assembly receives and vaporizes a fuel stream that includes the same carbon-containing feedstock and/or has the same overall composition as the feed stream from which the steam reformer or other fuel processor produces hydrogen gas. Methods of use are also disclosed.

US Patent:

20080305034, Dec 11, 2008

Filed:

Mar 7, 2008

Appl. No.:

12/044799

Inventors:

David J. Edlund - Bend OR, US
Darrell J. Elliott - Bend OR, US
Alan E. Hayes - Bend OR, US
William A. Pledger - Bend OR, US
Curtiss Renn - Bend OR, US
Redwood Stephens - Bend OR, US
R. Todd Studebaker - Shelley ID, US

Assignee:

IDATECH, LLC - Bend OR

International Classification:

C01B 3/26

US Classification:

423652

Abstract:

Systems and methods for producing hydrogen gas with a fuel processing system that includes a hydrogen-producing region that produces hydrogen gas from a feed stream and a heating assembly that consumes a fuel stream to produce a heated exhaust stream for heating the hydrogen-producing region. In some embodiments, the heating assembly heats the hydrogen-producing region to at least a minimum hydrogen-producing temperature. In some embodiments, the feed stream and the fuel stream both contain a carbon-containing feedstock and at least 25 wt % water. In some embodiments, at least one of the feed and fuel streams contain at least one additional component. In some embodiments, the feed and fuel streams have the same composition. In some embodiments, the feed and fuel streams are drawn or obtained from a common source or supply, and in some embodiments as a liquid stream that is selectively apportioned to form the feed and fuel streams.

US Patent:

20110256491, Oct 20, 2011

Filed:

Jun 22, 2011

Appl. No.:

13/166576

Inventors:

David J. Edlund - Hopkinton MA, US
Darrell J. Elliott - Bend OR, US
Alan E. Hayes - Bend OR, US
William A. Pledger - Bend OR, US
Curtiss Renn - Bend OR, US
Redwood Stephens - Bend OR, US
R. Todd Studebaker - Chubbuck ID, US

Assignee:

IDATECH, LLC - Bend OR

International Classification:

F23D 11/44

US Classification:

431207

Abstract:

Systems and methods for producing hydrogen gas with a fuel processing system that includes a hydrogen-producing region that produces hydrogen gas from a feed stream and a heating assembly that consumes a fuel stream to produce a heated exhaust stream for heating the hydrogen-producing region. In some embodiments, the heating assembly heats the hydrogen-producing region to at least a minimum hydrogen-producing temperature. In some embodiments, the rate at which an air stream is delivered to the heating assembly is controlled to selectively increase or decrease the temperature of the heated exhaust stream. In some embodiments, the feed stream and the fuel stream both contain a carbon-containing feedstock and at least 25 wt % water. In some embodiments, the feed and fuel streams have the same composition.