Skip to Content
Find More Like This
Return to Search

Production of carbon monoxide-free hydrogen and helium from a high-purity source

United States Patent

November 18, 2008
View the Complete Patent at the US Patent & Trademark Office
The invention provides vacuum swing adsorption processes that produce an essentially carbon monoxide-free hydrogen or helium gas stream from, respectively, a high-purity (e.g., pipeline grade) hydrogen or helium gas stream using one or two adsorber beds. By using physical adsorbents with high heats of nitrogen adsorption, intermediate heats of carbon monoxide adsorption, and low heats of hydrogen and helium adsorption, and by using vacuum purging and high feed stream pressures (e.g., pressures of as high as around 1,000 bar), pipeline grade hydrogen or helium can purified to produce essentially carbon monoxide -free hydrogen and helium, or carbon monoxide, nitrogen, and methane-free hydrogen and helium.
Golden; Timothy Christopher (Allentown, PA), Farris; Thomas Stephen (Bethlehem, PA)
Air Products and Chemicals, Inc. (Allentown, PA)
11/ 365,780
February 28, 2006
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under DOE Cooperative Agreement No. DE-FC36-05G085026 between Air Products and Chemicals, Inc., and the United States Department of Energy. The Government has certain rights to this invention.