Patents by Inventor Denny Li

Denny Li 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).

  • Oxygen-enhanced Claus carbon dioxide recovery
    Patent number: 11097952
    Abstract: Processes and systems for oxygen-enhanced Claus carbon dioxide recovery are disclosed. Oxygen is fed to a sulfur recovery unit instead of air. The tail gas is fed to a tail gas treatment unit which produces a treated tail gas, and the treated tail gas is processed in a carbon dioxide recovery unit to produce a carbon dioxide product. A method for retrofitting an existing sulfur recovery unit and tail gas treatment unit so as to recover the carbon dioxide product is also disclosed.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: August 24, 2021
    Assignee: Fluor Technologies Corporation
    Inventors: Thomas K. T. Chow, Ryan Y. D. Chow, Ghaith Aljazzar, Denny Li
  • OXYGEN-ENHANCED CLAUS CARBON DIOXIDE RECOVERY
    Publication number: 20200385274
    Abstract: Processes and systems for oxygen-enhanced Claus carbon dioxide recovery are disclosed. Oxygen is fed to a sulfur recovery unit instead of air. The tail gas is fed to a tail gas treatment unit which produces a treated tail gas, and the treated tail gas is processed in a carbon dioxide recovery unit to produce a carbon dioxide product. A method for retrofitting an existing sulfur recovery unit and tail gas treatment unit so as to recover the carbon dioxide product is also disclosed.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 10, 2020
    Applicant: Fluor Technologies Corporation
    Inventors: Thomas K.T. CHOW, Ryan Y.D. CHOW, Ghaith ALJAZZAR, Denny LI
  • Methods and system for decreasing gas emissions from landfills
    Patent number: 10221115
    Abstract: A method of diverting municipal solid waste (MSW) from a landfill that includes receiving, at a MSW processing system, a quantity of MSW, gasifying the quantity of MSW in a gasification unit to yield a syngas stream and biochar stream, converting at least a portion of the syngas to mixed alcohols in an alcohol synthesis unit, separating the mixed alcohols into one or more alcohol products, and determining a carbon offset for diverting the MSW from the landfill to the MSW processing system.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: March 5, 2019
    Assignee: Fluor Technologies Corporation
    Inventors: Ravi Ravikumar, Jim Wilson, Denny Li
  • Production of higher alcohols with minimum methanol content from the gasification of carbonaceous materials
    Patent number: 10040736
    Abstract: Systems and methods for generating higher alcohols from synthesis gas produced from carbonaceous materials are described, which can include a reactor configured to produce an alcohol stream and CO2 from a syngas feed. The alcohol stream can be separated in one or more downstream separators to produce a net reactor product and a methanol stream that can recycled into the reactor. The net reactor product preferably comprises higher-order alcohols such as ethanol, propanol, and butanol.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: August 7, 2018
    Assignee: Fluor Technologies Corporation
    Inventors: Ravi Ravikumar, Denny Li
  • METHODS AND SYSTEM FOR DECREASING GAS EMISSIONS FROM LANDFILLS
    Publication number: 20160194262
    Abstract: A method of diverting municipal solid waste (MSW) from a landfill that includes receiving, at a MSW processing system, a quantity of MSW, gasifying the quantity of MSW in a gasification unit to yield a syngas stream and biochar stream, converting at least a portion of the syngas to mixed alcohols in an alcohol synthesis unit, separating the mixed alcohols into one or more alcohol products, and determining a carbon offset for diverting the MSW from the landfill to the MSW processing system.
    Type: Application
    Filed: March 14, 2016
    Publication date: July 7, 2016
    Inventors: Ravi Ravikumar, Jim Wilson, Denny Li
  • Production of Higher Alcohols with Minimum Methanol Content from the Gasification of Carbonaceous Materials
    Publication number: 20150361015
    Abstract: Systems and methods for generating higher alcohols from synthesis gas produced from carbonaceous materials are described, which can include a reactor configured to produce an alcohol stream and CO2 from a syngas feed. The alcohol stream can be separated in one or more downstream separators to produce a net reactor product and a methanol stream that can recycled into the reactor. The net reactor product preferably comprises higher-order alcohols such as ethanol, propanol, and butanol.
    Type: Application
    Filed: August 26, 2015
    Publication date: December 17, 2015
    Inventors: Ravi Ravikumar, Denny Li
  • Production of higher alcohols with minimum methanol content from the gasification of carbonaceous materials
    Patent number: 9149739
    Abstract: Systems and methods for generating higher alcohols from synthesis gas produced from carbonaceous materials are described, which can include a reactor configured to produce an alcohol stream and CO2 from a syngas feed. The alcohol stream can be separated in one or more downstream separators to produce a net reactor product and a methanol stream that can recycled into the reactor. The net reactor product preferably comprises higher-order alcohols such as ethanol, propanol, and butanol.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: October 6, 2015
    Assignee: Fluor Technologies Coporation
    Inventors: Ravi Ravikumar, Denny Li
  • PRODUCTION OF HIGHER ALCOHOLS WITH MINIMUM METHANOL CONTENT FROM THE GASIFICATION OF CARBONACEOUS MATERIALS
    Publication number: 20130310469
    Abstract: Systems and methods for generating higher alcohols from synthesis gas produced from carbonaceous materials are described, which can include a reactor configured to produce an alcohol stream and CO2 from a syngas feed. The alcohol stream can be separated in one or more downstream separators to produce a net reactor product and a methanol stream that can recycled into the reactor. The net reactor product preferably comprises higher-order alcohols such as ethanol, propanol, and butanol.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 21, 2013
    Applicant: FLUOR TECHNOLOGIES CORPORATION
    Inventors: Ravi Ravikumar, Denny Li