Patents by Inventor Heiko Weiner

Heiko Weiner 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).

  • Processes for Making Ethanol From Acetic Acid
    Publication number: 20130231510
    Abstract: A process for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of first metal, a silicaceous support, and at least one support modifier. Preferably, the first metal is selected from the group consisting of copper, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, titanium, zinc, chromium, rhenium, molybdenum, and tungsten. In addition the catalyst may comprise a second metal preferably selected from the group consisting of copper, molybdenum, tin, chromium, iron, cobalt, vanadium, tungsten, palladium, platinum, lanthanum, cerium, manganese, ruthenium, rhenium, gold, and nickel.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 5, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Victor J. Johnston, Laiyuan Chen, Barbara F. Kimmich, Josefina T. Chapman, James H. Zink, Heiko Weiner, John L. Potts, Radmila Wollrab
  • Hydrogenation Catalyst Using Multiple Impregnations of an Active Metal Solution
    Publication number: 20130225876
    Abstract: A process for producing a catalyst that results in improved yields and productivity to ethanol. The process involves the steps of preparing a solution comprising one or more precursors to an active metal and impregnating a first portion of the solution on a support to form a first impregnated support. The first impregnated support is calcined to form a first calcined support and a second portion of the solution is impregnated on the first calcined support. The catalyst is useful for hydrogenating alkanoic acids to ethanol.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Applicant: Celanese International Corporation
    Inventors: Heiko Weiner, Zhenhua Zhou
  • Catalyst Having Support Containing Tin and Process for Manufacturing Ethanol
    Publication number: 20130225877
    Abstract: The present invention relates to a catalyst composition having a support that contains tin. The catalyst is used for converting acetic acid to ethanol. The catalyst may also comprise one or more active metals and a support modifier.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Heiko Weiner, Zhenhua Zhou, Radmila Jevtic, Victor J. Johnston
  • Cobalt/ Tin Catalyst for Producing Ethanol
    Publication number: 20130225878
    Abstract: The present invention relates to a process for the formation of alcohols from alkanoic acids, the steps of the process comprising: contacting a feed stream containing the alkanoic acid and hydrogen at an elevated temperature with a hydrogenating catalyst comprising from 3 to 25 wt. % of active metals on a support, wherein the active metals comprise cobalt and tin.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Heiko Weiner, Zhenhua Zhou, Radmila Jevtic, Victor J. Johnston
  • Ethanol Manufacturing Process Over Catalyst with Cesium and Support Comprising Tungsten or Oxides Thereof
    Publication number: 20130211152
    Abstract: The present invention relates to a process for producing product comprising ethanol which comprises contacting a feedstock comprising acetic acid and hydrogen in a reaction zone at hydrogenation conditions with a catalyst composition comprising at least one active metal that may include a Group VIII metal and tin and from 0.01 to 0.5 wt. % cesium on a support comprising tungsten or oxides thereof.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 15, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Radmila Jevtic, Victor J. Johnston, Heiko Weiner, Zhenhua Zhou
  • Catalysts for Converting Acetic Acid to Acetone
    Publication number: 20130210936
    Abstract: The present invention relates to a process for the formation of acetone from acetic acid. The process is conducted at an elevated temperature of above 225° C. by contacting a feed stream containing acetic acid, and an optional carrier gas, with a catalyst. The catalyst comprises a support that is favorable for the production of acetone. The support may comprise titania, zirconia, ceria, silica, iron oxide, and carbon, but preferably is titania, zirconia, and ceria.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 15, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Radmila Jevtic, Victor J. Johnston, Heiko Weiner
  • Chemisorption of Ethyl Acetate During Hydrogenation of Acetic Acid to Ethanol
    Publication number: 20130211150
    Abstract: A hydrogenation catalyst and process using the catalyst for converting a mixture comprising acetic acid and ethyl acetate to ethanol at a first temperature, and the catalyst desorbs ethyl acetate, in the absence of hydrogen, at a second temperature that is greater than the first temperature. The catalyst has a suitable chemisorption of ethyl acetate at the first temperature in the absence of hydrogen. In one embodiment, the first temperature ranges from 125° C. to 350° C. and the second temperature ranges from 300° C. to 600° C. The catalyst comprises one or more active metals or oxide thereof on a support that comprises tungsten or an oxide thereof. The one or more active metals are selected from the group consisting of cobalt, copper, gold, iron, nickel, palladium, platinum, iridium, osmium, rhenium, rhodium, ruthenium, tin, zinc, lanthanum, cerium, manganese, chromium, vanadium, and molybdenum.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 15, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Heiko Weiner, Dheeraj Kumar, Xiaoyan Tu, Victor J. Johnston, Radmila Jevtic
  • Process for Producing Ethanol Using a Molar Excess of Hydrogen
    Publication number: 20130204049
    Abstract: The present invention relates to a process for the production of ethanol using a molar excess of hydrogen. A mixed feed of acetic acid and ethyl acetate is fed to a reactor to be converted to ethanol. Hydrogen flow is increased to avoid a negative conversion of ethyl acetate.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 8, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Radmila Jevtic, Victor J. Johnston, David Lee, Heiko Weiner, Zhenhua Zhou
  • Hydrogenation Process with Reduced Residence Time for Vapor Phase Reactants
    Publication number: 20130204050
    Abstract: The present invention is directed to the separation of ethanol from a crude ethanol product obtained from the vaporization and hydrogenation of acetic acid using reduced residence time for the vapor phase reactants between exiting the vaporizer and entering the reactor. The crude ethanol product is separated in at least one column to recover an ethanol product.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 8, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Radmila Jevtic, Victor J. Johnston, David Lee, Heiko Weiner, Zhenhua Zhou
  • Catalysts for making ethanol from acetic acid
    Patent number: 8501652
    Abstract: Catalysts and processes for forming catalysts for use in hydrogenating acetic acid to form ethanol. In one embodiment, the catalyst comprises a first metal, a silicaceous support, and at least one metasilicate support modifier. Preferably, the first metal is selected from the group consisting of copper, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, titanium, zinc, chromium, rhenium, molybdenum, and tungsten. In addition the catalyst may comprise a second metal preferably selected from the group consisting of copper, molybdenum, tin, chromium, iron, cobalt, vanadium, tungsten, palladium, platinum, lanthanum, cerium, manganese, ruthenium, rhenium, gold, and nickel.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: August 6, 2013
    Assignee: Celanese International Corporation
    Inventors: Victor J. Johnston, Laiyuan Chen, Barbara F. Kimmich, Josefina T. Chapman, James H. Zink, Heiko Weiner, John L. Potts, Radmila Jevtic
  • Process For Manufacturing Ethanol Using A Metallic Catalyst Supported on Titania
    Publication number: 20130197278
    Abstract: The present invention relates to a process for producing ethanol by contacting a feedstock comprising acetic acid and hydrogen in a reaction zone at hydrogenation conditions including a temperature from 125° C. to 350° C. with a catalyst composition, wherein the catalyst composition comprises from 1.5 wt. % to 3 wt. % active metals on a titania support, said active metals comprising at least one Group VIII metal and an excess molar amount of tin, relative to the at least one Group VIII metal.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 1, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Radmila Jevtic, Victor J. Johnston, Heiko Weiner
  • Bismuth Catalyst Composition and Process For Manufacturing Ethanol Mixture
    Publication number: 20130190527
    Abstract: The present invention relates to a catalyst composition comprising at least one Group VIII metal and bismuth on a support, and to a process for manufacturing a product comprising ethanol and ethyl acetate from a feedstock comprising acetic acid over the catalyst composition under hydrogenation conditions, including a temperature of greater than about 290° C.
    Type: Application
    Filed: January 23, 2012
    Publication date: July 25, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Victor J. Johnston, Heiko Weiner
  • Processes for Making Catalysts With Metal Halide Precursors
    Publication number: 20130178666
    Abstract: The present invention relates to catalysts, to processes for making catalysts with halide containing precursors and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 11, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Heiko Weiner
  • COBALT-CONTAINING HYDROGENATION CATALYSTS AND PROCESSES FOR MAKING SAME
    Publication number: 20130178663
    Abstract: The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises cobalt, precious metal and one or more active metals on a modified support.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 11, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Dheeraj Kumar, Xiaoyan Tu, Heiko Weiner, Radmila Wollrab
  • Processes for Making Catalysts
    Publication number: 20130178667
    Abstract: The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 11, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Heiko Weiner, Radmila Wollrab
  • Processes For Making Catalysts With Acidic Precursors
    Publication number: 20130178665
    Abstract: The present invention relates to catalysts, to processes for making catalysts with acidic precursors and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 11, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Heiko Weiner
  • Modified Catalyst Supports
    Publication number: 20130178662
    Abstract: The present invention relates to modified catalyst supports, to processes for making modified catalyst supports, and to chemical processes employing catalysts that comprise such modified catalyst supports. The modified catalyst support comprises a first metal, a second metal and a support modifier on a support, wherein the support modifier comprises a support modifier metal selected from the group consisting of tungsten, molybdenum, vanadium, niobium, and tantalum.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 11, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Dheeraj Kumar, Heiko Weiner
  • Multifunctional Hydrogenation Catalysts
    Publication number: 20130178668
    Abstract: The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The multifunctional catalysts are preferably used for converting acetic acid and ethyl acetate to ethanol. The catalyst is effective for providing an acetic acid conversion greater than 20% and an ethyl acetate conversion greater than 0%. The catalyst comprises a precious metal and one or more active metals on a modified support. The modified support includes a metal selected from the group consisting of tungsten, vanadium, and tantalum, provided that the modified support does not contain phosphorous.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 11, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Heiko Weiner, Radmila Wollrab
  • Hydrogenation Catalysts
    Publication number: 20130178664
    Abstract: The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a modified support. The modified support may comprise cobalt tungstate.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 11, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Victor Johnston, Dheeraj Kumar, Xiaoyan Tu, Heiko Weiner, Radmila Wollrab
  • Hydrogenation Catalysts with Cobalt-Modified Supports
    Publication number: 20130178661
    Abstract: The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a modified support that comprises cobalt.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 11, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Zhenhua Zhou, Heiko Weiner, Radmila Wollrab