Patents by Inventor Laiyuan Chen

Laiyuan Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070238610
    Abstract: A fuel reformer catalyst includes a substrate, and disposed thereon a carrier and combination of at least two metals selected from the group consisting of Rh, Ni, Ir, Pd, Pt, Au, and combinations thereof. Rh is present in the catalyst in an amount not exceeding about 0.5 wt. %, based on the total combined weight of the metals and carrier.
    Type: Application
    Filed: April 5, 2006
    Publication date: October 11, 2007
    Inventors: Laiyuan Chen, Jeffrey Weissman
  • Publication number: 20070111884
    Abstract: In one embodiment, the catalyst can comprise: a catalyst support and a rhodium catalyst disposed at the catalyst support. The catalyst support comprises a hexaluminate and alumina. The catalyst support was formed from a mixture comprising a greater than stoichiometric concentration of alumina and a material selected from the group consisting of a divalent cation component, a trivalent cation component, and combinations comprising at least one of the foregoing. In one embodiment, a method of making a fuel reforming catalyst can comprise: forming a mixture of a divalent cation component, a trivalent cation component, and a greater than stoichiometric concentration of alumina; heating the mixture to a temperature of greater than or equal to about 1,200° C. to form a catalyst support comprising a hexaluminate; and disposing a rhodium catalyst at the catalyst support.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 17, 2007
    Inventors: Laiyuan Chen, Jeffrey Weissman
  • Publication number: 20060045843
    Abstract: In one embodiment, a catalyst member can comprise a substrate configured for gas flow therethrough, a base metal catalytic component disposed in a base metal catalytic layer on the substrate, and a rhodium catalytic material disposed in a rhodium layer. The base metal catalytic component can comprises a base metal selected from the group consisting of nickel, cobalt, and a combination comprising at least one of the foregoing base metals. In one embodiment, the catalyst member can be made by depositing a base metal catalytic component on a substrate configured for gas flow therethrough, and depositing a rhodium catalytic material over the base metal catalytic component.
    Type: Application
    Filed: September 1, 2004
    Publication date: March 2, 2006
    Inventors: Laiyuan Chen, Jeffrey Weissman
  • Publication number: 20050169820
    Abstract: A microfibrous matrix with embedded supporting particulates/fibers and chemically reactive materials is provided as a filtration system for the removal of contaminants and other harmful agents from liquid and gaseous streams. Such filter may be used for example to protect the intolerant anodes and cathodes of fuel cells from damaging H2S while simultaneously aiding the selective conversion of CO to CO2 in fuel streams predominated by hydrogen. In general, the reactive materials utilized as well as the supporting matrix of fibers may be broadly selected to remove specific contaminants at specific reaction conditions inherent to the application. Such materials may include chemically reactive materials as high surface area carbons, zeolites, silicas, aluminas, inorganic metal oxides, polymer resins, ZnO, ZnO/Carbon, Pt/?-Al2O3, PtCo/?-Al2O3, ZnO/SiO2 and various other catalysts, sorbents or reactants.
    Type: Application
    Filed: August 26, 2004
    Publication date: August 4, 2005
    Inventors: Bruce Tatarchuk, Bong Kyu Chang, Yong Lu, Laiyuan Chen, Eric Luna, Don Cahela