Alan F Hayes

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:

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.