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Hydrogen production by high temperature water splitting using electron conducting membranes

United States Patent

7,087,211
August 8, 2006
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A device and method for separating water into hydrogen and oxygen is disclosed. A first substantially gas impervious solid electron-conducting membrane for selectively passing protons or hydrogen is provided and spaced from a second substantially gas impervious solid electron-conducting membrane for selectively passing oxygen. When steam is passed between the two membranes at dissociation temperatures the hydrogen from the dissociation of steam selectively and continuously passes through the first membrane and oxygen selectively and continuously passes through the second membrane, thereby continuously driving the dissociation of steam producing hydrogen and oxygen. The oxygen is thereafter reacted with methane to produce syngas which optimally may be reacted in a water gas shift reaction to produce CO.sub.2 and H.sub.2.
Balachandran; Uthamalingam (Hinsdale, IL), Wang; Shuangyan (Hinsdale, IL), Dorris; Stephen E. (LaGrange Park, IL), Lee; Tae H. (Naperville, IL)
The University of Chicago (Chicago, IL)
10/ 669,832
20040098914
September 24, 2003
The United States Government has rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy (DOE) and The University of Chicago representing Argonne National Laboratory.