Patents by Inventor Lixin You

Lixin You 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: 20240026241
    Abstract: A foam control agent and method of controlling foam for metal working fluids by use of a foam control agent, wherein the agent comprises at least a branched alcohol.
    Type: Application
    Filed: October 26, 2020
    Publication date: January 25, 2024
    Inventors: Xue Chen, Lixin You
  • Publication number: 20210163813
    Abstract: Surfactants constructed from three synthetic building blocks that contain multiple hydrocarbon chains, ethyleneamine, and alkyl sulfonate salt groups, were shown to possess good thermal stability, and foamability, and high foam profiles. The materials are targeted for high temperature foaming applications, such as foam flooding enhanced oil recovery to improve conformance control and other oil and gas downhole foaming applications.
    Type: Application
    Filed: December 18, 2017
    Publication date: June 3, 2021
    Inventors: Wenke Miao, Peng Gao, Lixin You, Cheng Shen, Pramod D. Patil, Biplab Mukherjee, Troy E. Knight
  • Patent number: 9023901
    Abstract: A synthesis gas conversion process and system are disclosed. Fresh syngas from a methane reformer is used as a sweep zone gas feed which is caused to flow across a water permselective membrane in a membrane reactor. The water permselective membrane is 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 and passes out of the reactor with the sweep zone gas. The water is then removed from the sweep zone gas forming a modified gas feed which is fed to the reaction zone. The modified gas feed has a preferred H2/CO ratio to feed into the reaction zone.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: May 5, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Lixin You, Shabbir Husain, Christopher M. Chen
  • Publication number: 20150038598
    Abstract: A synthesis gas conversion process and system are disclosed. Fresh syngas from a methane reformer is used as a sweep zone gas feed which is caused to flow across a water permselective membrane in a membrane reactor. The water permselective membrane is 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 and passes out of the reactor with the sweep zone gas. The water is then removed from the sweep zone gas forming a modified gas feed which is fed to the reaction zone. The modified gas feed has a preferred H2/CO ratio to feed into the reaction zone.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 5, 2015
    Applicant: Chevron U.S.A. Inc.
    Inventors: Lixin You, Shabbir Husain, Christopher M. Chen
  • 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
  • Publication number: 20130090394
    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: Application
    Filed: October 7, 2011
    Publication date: April 11, 2013
    Applicant: Chevron U.S.A Inc.
    Inventors: Shabbir Husain, Charles Kibby, Lixin You, Babak Fayyaz
  • Patent number: 8394154
    Abstract: A process for preparation of synthesis gas and/or hydrogen by counter-currently providing an oxidation reactant stream through an oxidation chamber and a reforming reactant stream through a steam reforming chamber is described. Also provided is a reactor for conducting the reaction.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: March 12, 2013
    Assignee: Texaco Inc.
    Inventors: Lixin You, Curtis Krause, Kevin Nguyen, Amanda Vincent
  • Patent number: 8241374
    Abstract: The present invention discloses a fluidized bed system for the single step reforming technology for the production of hydrogen. Single step reforming combines the steam methane reforming, water gas shift, and carbon dioxide removal in a single step process of hydrogen generation. In the present invention, to address the heat transfer and the replenishment issues associated with single step reforming, the sorbent particles are fluidized. This fluidization allows the sorbent particles to be regenerated and consequently allows the optimal operating conditions for single step reforming to be maintained.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: August 14, 2012
    Assignee: Texaco Inc.
    Inventors: Farshad Bavarian, James F. Stevens, Balaji Krishnamurty, Yunquan Liu, Curtis L. Krause, Lixin You, Daniel G. Casey
  • Patent number: 7989511
    Abstract: A process and apparatus for preparing a synthesis gas suitable for feeding to a suitable hydrocarbon production reactor, such as a Fischer Tropsch reactor is described. According to one aspect, the process and apparatus utilize heat exchangers that thermally integrate the reaction steps such that heat generated by exothermic reactions, e.g., combustion, are arranged closely to the heat sinks, e.g., cool methane, water and air, to minimize heat loss and maximize heat recovery. Effectively, this thermal integration eliminates excess piping throughout, reduces initial capital and operating costs, provides built-in passive temperature control, and improves synthesis gas production efficiencies.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: August 2, 2011
    Assignee: Texaco Inc.
    Inventors: Daniel Glenn Casey, Lixin You, Curtis Lee Krause, Kevin Hoa Nguyen
  • Publication number: 20110126451
    Abstract: An integrated process and an apparatus for converting natural gas from an offshore field site to liquefied natural gas and to liquid fuel at an onshore site are disclosed. The process includes liquefying the natural gas and producing natural gas liquids using heat exchange at the offshore site. The liquefied natural gas can be transported to a market distribution location, and the natural gas liquids can be transported to the onshore site for further processing to liquid fuels. An air separation unit at the onshore site provides both liquefied nitrogen for use as coolant in the offshore heat exchange process as well as oxygen for use in an autothermal reformer at the onshore site. The natural gas liquids produced offshore can be fed to the autothermal reformer to generate synthesis gas which can be converted to liquid fuels.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Inventors: Justin I-Ching Pan, Lixin You
  • Publication number: 20090292030
    Abstract: A process and apparatus for preparing a synthesis gas suitable for feeding to a suitable hydrocarbon production reactor, such as a Fischer Tropsch reactor is described. According to one aspect, the process and apparatus utilize heat exchangers that thermally integrate the reaction steps such that heat generated by exothermic reactions, e.g., combustion, are arranged closely to the heat sinks, e.g., cool methane, water and air, to minimize heat loss and maximize heat recovery. Effectively, this thermal integration eliminates excess piping throughout, reduces initial capital and operating costs, provides built-in passive temperature control, and improves synthesis gas production efficiencies.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 26, 2009
    Inventors: Daniel Glenn Casey, Lixin You, Curtis Lee Krause, Kevin Hoa Nguyen
  • Publication number: 20090165385
    Abstract: A process for preparation of synthesis gas and/or hydrogen by counter-currently providing an oxidation reactant stream through an oxidation chamber and a reforming reactant stream through a steam reforming chamber is described. Also provided is a reactor for conducting the reaction.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Inventors: Lixin You, Curtis Lee Krause, Kevin Hoa Nguyen, Amanda Vincent
  • Publication number: 20090170967
    Abstract: A process for preparation of a synthesis gas and/or hydrogen by concurrently providing an oxidation reactant stream through an oxidation chamber and a reforming reactant stream through a steam, reforming chamber is described. Also provided is a reactor for conducting the reaction.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Inventors: Lixin You, Crutis Lee Krause, Kevin Hoa Nguyen
  • Publication number: 20080141584
    Abstract: Methods of using a catalyst preburner upstream of a catalyst burner, such as an anode tailgas oxidizer (ATO), in fuel processing applications. The methods prepare a hydrogen containing gas mixture which can be effectively combusted in a single ATO. The catalyst preburner will convert raw fuels into a gas mixture including hydrogen. This hydrogen containing gas mixture then mixes with the required air flow and anode tailgas and off-gas from a pressure swing adsorption unit before being introduced into the catalyst burner. The methods address the start-ups needs of an ATO as well as the requirement that an ATO be able to burn both liquid and gas fuels in a single unit.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 19, 2008
    Applicant: Texaco Inc.
    Inventors: Lixin You, Daniel G. Casey, Kevin H. Nguyen
  • Publication number: 20080145309
    Abstract: The present invention discloses a fluidized bed system for the single step reforming technology for the production of hydrogen. Single step reforming combines the steam methane reforming, water gas shift, and carbon dioxide removal in a single step process of hydrogen generation. In the present invention, to address the heat transfer and the replenishment issues associated with single step reforming, the sorbent particles are fluidized. This fluidization allows the sorbent particles to be regenerated and consequently allows the optimal operating conditions for single step reforming to be maintained.
    Type: Application
    Filed: December 15, 2006
    Publication date: June 19, 2008
    Applicant: Texaco Inc.
    Inventors: Farshad Bavarian, James F. Stevens, Balaji Krishnamurty, Yunquan Liu, Curtis L. Krause, Lixin You, Daniel G. Casey