Patents by Inventor Babak Fayyaz-Najafi

Babak Fayyaz-Najafi 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).

  • IN SITU UPGRADING OF HEAVY HYDROCARBON USING ONE OR MORE DEGRADABLE SOLVENTS AND ONE OR MORE ADDITIVES
    Publication number: 20220380660
    Abstract: Embodiments are provided herein for in situ upgrading of a heavy hydrocarbon in a reservoir having an injection well and a production well, or a well that is alternately operated as an injection well and a production well. Embodiments are also provided herein for selecting a degradable solvent for use in a process for in situ upgrading of a heavy hydrocarbon in a reservoir having an injection well and a production well, or a well that is alternately operated as an injection well and a production well.
    Type: Application
    Filed: May 24, 2022
    Publication date: December 1, 2022
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Jeffrey M. WOOLFORD, Cesar OVALLES, Babak FAYYAZ-NAJAFI, Ian P. BENSON, Juan D. MUNOZ
  • Process for providing hydrogen to a synthesis gas conversion reaction
    Patent number: 8425854
    Abstract: A synthesis gas conversion process for carrying out the process is disclosed. A hydrogen-containing sweep gas is caused to flow across a water permselective membrane adjacent a synthesis gas conversion reaction zone in which synthesis gas is contacted with a catalyst and converted to effluent including water. Water is removed from the reaction zone through the membrane. The sweep gas has sufficient hydrogen partial pressure to cause hydrogen to pass through the membrane into the reaction zone.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: April 23, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Shabbir Husain, Charles Kibby, Lixin You, Babak Fayyaz-Najafi
  • Membrane reactor with in-situ dehydration and method for using the same
    Patent number: 8206667
    Abstract: A fixed bed membrane reactor is disclosed. The reactor has a housing including an inlet for receiving reactants and an outlet for discharging retentate streams of reaction products. The inlet and outlet are in fluid communication with a reaction zone in which the reactants may pass downstream from the inlet to the outlet with the reactants reacting to produce reaction products including water. The reactor further includes a membrane assembly disposed in fluid communication with the reaction zone. The membrane assembly includes at least one porous support with a water permselective membrane affixed thereto. The membrane allows water produced in the reaction zone to be selectively removed from the reaction zone as a permeate stream while allowing retentate reaction products to remain in the reaction zone and be discharged as a retentate stream.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: June 26, 2012
    Assignee: Chevron U.S.A. Inc.
    Inventors: Babak Fayyaz Najafi, Charles Leonard Kibby, Steven Xuqi Song, Daniel Chinn
  • Hybrid adsorptive membrane reactor
    Patent number: 7897122
    Abstract: A hybrid adsorbent-membrane reactor in which the chemical reaction, membrane separation, and product adsorption are coupled. Also disclosed are a dual-reactor apparatus and a process using the reactor or the apparatus.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: March 1, 2011
    Assignees: Media and Process Technology, LG Petrochemical Co., Ltd., University of Southern California
    Inventors: Theodore T. Tsotsis, Muhammad Sahimi, Babak Fayyaz-Najafi, Aadesh Harale, Byoung-Gi Park, Paul K. T. Liu
  • MEMBRANE REACTOR WITH IN-SITU DEHYDRATION AND METHOD FOR USING THE SAME
    Publication number: 20090170964
    Abstract: A fixed bed membrane reactor is disclosed. The reactor has a housing including an inlet for receiving reactants and an outlet for discharging retentate streams of reaction products. The inlet and outlet are in fluid communication with a reaction zone in which the reactants may passe downstream from the inlet to the outlet with the reactants reacting to produce reaction products including water. The reactor further includes a membrane assembly disposed in fluid communication with the reaction zone. The membrane assembly includes at least one porous support with a water permselective membrane affixed thereto. The membrane allows water produced in the reaction zone to be selectively removed from the reaction zone as a permeate stream while allowing retentate reaction products to remain in the reaction zone and be discharged as a retentate stream.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Inventors: Babak Fayyaz Najafi, Charles Leonard Kibby, Steven Xuqi Song, Daniel Chinn
  • Hybrid adsorptive membrane reactor
    Publication number: 20070053811
    Abstract: A hybrid adsorbent-membrane reactor in which the chemical reaction, membrane separation, and product adsorption are coupled. Also disclosed are a dual-reactor apparatus and a process using the reactor or the apparatus.
    Type: Application
    Filed: February 14, 2006
    Publication date: March 8, 2007
    Inventors: Theodore Tsotsis, Muhammad Sahimi, Babak Fayyaz-Najafi, Aadesh Harale, Byoung-Gi Park, Paul Liu