Patents by Inventor Nora Urbano

Nora Urbano 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).

  • Microwave heated catalyst and process
    Patent number: 6171479
    Abstract: A process comprises providing a catalyst comprising a support, a microwave absorption material, and a catalytically active phase; heating the catalyst with a source of microwave energy which is absorbed by said microwave absorption material to increase the temperature of the catalyst to a desired temperature; and contacting said heated catalyst with a hydrocarbon feedstock for upgrading same.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: January 9, 2001
    Assignee: Intevep, S.A.
    Inventors: Cesar Ovalles, Alfredo Morales, Luis A. Rivas, Nora Urbano
  • Microwave heated catalyst and process
    Patent number: 6017845
    Abstract: A process comprises providing a catalyst comprising a support, a microwave absorption material, and a catalytically active phase; heating the catalyst with a source of microwave energy which is absorbed by said microwave absorption material to increase the temperature of the catalyst to a desired temperature; and contacting said heated catalyst with a hydrocarbon feedstock for upgrading same.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: January 25, 2000
    Assignee: Intevep, S.A.
    Inventors: Cesar Ovalles, Alfredo Morales, Luis A. Rivas, Nora Urbano
  • Catalyst for the direct conversion of methane to higher hydrocarbons and method for the preparation of same
    Patent number: 5321187
    Abstract: A method for preparing a catalyst for conversion of methane to higher hydrocarbons, discloses the steps of: forming a mixture of a manganese aqueous solution and an oxidative agent aqueous solution in an inorganic oxide support material; varying a pH value of the mixture between acidic and basic values to obtain a precipitate of manganese oxide; drying the manganese oxide precipitate; impregnating the dried manganese oxide precipitate with a promoter to obtain an impregnated solid; drying the impregnated solid; and calcining the impregnated solid until a surface atomic ratio of promoter to manganese is at least 5. The catalyst so acquired may be contacted with a methane gas to obtain stable conversion values over extended reaction times.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: June 14, 1994
    Assignee: Intevep, S.A.
    Inventors: Cesar Ovalles, Nora Urbano, Francisco Rosa
  • Catalyst for the direct conversion of methane to higher hydrocarbons and method for the preparation of same
    Patent number: 5212139
    Abstract: A method for preparing a catalyst for conversion of methane to higher hydrocarbons, discloses the steps of forming a mixture of a manganese aqueous solution and an oxidative agent aqueous solution in an inorganic oxide support material; varying a pH value of the mixture between acidic and basic values to obtain a precipitate of manganese oxide; drying the manganese oxide precipitate; impregnating the dried manganese oxide precipitate with a promoter to obtain an impregnated solid; drying the impregnated solid; and calcining the impregnated solid until a surface atomic ratio of promoter to manganese is at least 5. The catalyst so acquired may be contacted with a methane gas to obtain stable conversion values over extended reaction times.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: May 18, 1993
    Assignee: Intevep, S.A.
    Inventors: Cesar Ovalles, Nora Urbano, Francisco Rosa