Patents by Inventor Shetian Liu

Shetian Liu 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: 20230271172
    Abstract: The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 31, 2023
    Inventors: Mark G. White, Shetian Liu
  • Patent number: 11660587
    Abstract: The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: May 30, 2023
    Assignee: Mississippi State University
    Inventors: Mark G. White, Shetian Liu
  • Publication number: 20210077987
    Abstract: The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 18, 2021
    Inventors: Mark G. White, Shetian Liu
  • Patent number: 10850266
    Abstract: The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: December 1, 2020
    Assignee: Mississippi State University
    Inventors: Mark G. White, Shetian Liu
  • Publication number: 20180029024
    Abstract: The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.
    Type: Application
    Filed: September 25, 2017
    Publication date: February 1, 2018
    Inventors: Mark G. White, Shetian Liu
  • Publication number: 20150065338
    Abstract: The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.
    Type: Application
    Filed: November 5, 2014
    Publication date: March 5, 2015
    Inventors: Mark G. White, Shetian Liu
  • Patent number: 8906971
    Abstract: The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: December 9, 2014
    Assignee: Mississippi State University
    Inventors: Mark G. White, Shetian Liu
  • Publication number: 20130172650
    Abstract: Methods and systems relate to upgrading light olefins, such as ethylene, propylene and butylenes, diluted in a gas mixture, such as refinery fuel gas. The upgrading yields products in a gasoline, distillate, lube oil or wax range without requiring purification or compression of the gas mixture prior to feeding the gas mixture to a reactor. In operation, the mixture contacts a solid oligomerization catalyst, such as silica supported chromium, within the reactor. This contact occurs at a first temperature suitable to produce oligomers that are formed of the olefins and adsorb on the catalyst in liquid or solid phases. Next, heating the catalyst to a second temperature higher the first temperature desorbs the oligomers that are recovered and separated into the products.
    Type: Application
    Filed: December 18, 2012
    Publication date: July 4, 2013
    Applicant: PHILLIPS 66 COMPANY
    Inventors: Shetian Liu, Jianhua Yao, Xiaochun Xu, Patrick W. Blosser, Joe D. Allison, Edward L. Sughrue, II
  • Patent number: 8450545
    Abstract: A process of modifying a zeolite catalyst to produce a modified zeolite catalyst wherein the modified zeolite catalyst has blocked pore sites. An oxygenated feed is flowed over the modified zeolite catalyst, wherein the oxygenated feed comprises hydrocarbons, methanol and dimethyl ether or a mixture thereof. The hydrocarbons, methanol and dimethyl ether in the oxygenated feed react with the modified zeolite catalyst to produce cyclic hydrocarbons, wherein the cyclic hydrocarbons produced has less than 10% durene and a median carbon number is C8.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: May 28, 2013
    Assignee: Phillips 66 Company
    Inventors: Glenn W. Dodwell, Joe D. Allison, Shetian Liu, Scott McQueen, Dennis G. Schultz, Byron G. Johnson, Madhu Anand, Melinda L. Johnson, Larry E. Reed, Brian C. Dunn
  • Publication number: 20110036756
    Abstract: The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 17, 2011
    Inventors: Mark G. White, Shetian Liu
  • Publication number: 20100041932
    Abstract: A process of modifying a zeolite catalyst to produce a modified zeolite catalyst wherein the modified zeolite catalyst has blocked pore sites. An oxygenated feed is flowed over the modified zeolite catalyst, wherein the oxygenated feed comprises hydrocarbons, methanol and dimethyl ether or a mixture thereof. The hydrocarbons, methanol and dimethyl ether in the oxygenated feed react with the modified zeolite catalyst to produce cyclic hydrocarbons, wherein the cyclic hydrocarbons produced has less than 10% durene and a median carbon number is C8.
    Type: Application
    Filed: July 24, 2009
    Publication date: February 18, 2010
    Applicant: ConocoPhillips Company
    Inventors: Glenn W. Dodwell, Joe D. Allison, Shetian Liu, Scott McQueen, Dennis G. Schultz, Byron G. Johnson, Madhu Anand, Melinda L. Johnson, Larry E. Reed, Brian C. Dunn