Reginald Eugene Mitchell

US Patent:

20090004529, Jan 1, 2009

Filed:

Jun 26, 2008

Appl. No.:

12/215681

Inventors:

Turgut M. Gur - Palo Alto CA, US
Reginald E. Mitchell - Oakland CA, US
Andrew C. Lee - Sanford CA, US
Siwen Li - Cupertino CA, US

International Classification:

H01M 8/10

US Classification:

429 33

Abstract:

An integrated dry gas fuel cell (IDG-FC) is provided. The IDG-FC includes at least one solid oxide fuel cell having an anode, a cathode and an electrolyte membrane disposed between the anode and the cathode. The IDG-FC further includes a conversion bed, where carbon dioxide gas is provided to the conversion bed to convert carbon monoxide gas from the carbon dioxide gas. Solid carbonaceous fuel is provided to the conversion bed to promote the gas conversion. The carbon monoxide is provided as fuel to the anode, and air is supplied to the cathode to provide oxygen for oxidation of the carbon monoxide at the anode to generate electric power. This new process does not require water, and supplies the oxygen required for the oxidation reaction through an ionically selective solid oxide electrolyte membrane.

US Patent:

20140011104, Jan 9, 2014

Filed:

Sep 9, 2013

Appl. No.:

14/021401

Inventors:

Reginald E. Mitchell - Oakland CA, US

International Classification:

H01M 8/06

US Classification:

429410

Abstract:

A fluidized bed integrated dry gas fuel cell (FB-IDG-FC) is provided. The FB-IDG-FC includes a solid oxide fuel cell having an anode, a cathode and an electrolyte membrane disposed there between. The FB-IDG-FC further includes a conversion bed, where carbon dioxide gas is provided therein to convert carbon monoxide gas from the carbon dioxide gas. Solid carbonaceous fuel is provided to the conversion bed to promote the gas conversion. Carbon monoxide is provided as fuel to the anode, and air is supplied to the cathode to provide oxygen for oxidation of the carbon monoxide at the anode to generate electric power. No water is required, and oxygen is supplied for oxidation through an ionically selective solid oxide electrolyte membrane. This invention provides in situ capture and removal of sulfur, sulfurous compounds and other contaminants by solid sorbent from the carbon monoxide gas converted from carbon dioxide gas in the gasifier.