Patents by Inventor Jinghua Chan

Jinghua Chan 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: 20240377128
    Abstract: A method for obtaining a natural gas liquid (NGL) product from a liquefied natural gas (LNG) liquefaction facility including receiving a gas feed stream at an LNG facility having an NGL recovery unit integrated therein, cooling the gas feed stream via a demethanizer of the NGL recovery unit to separate a vapor from a liquid, transferring the vapor from the NGL recovery unit to an LNG liquefaction unit and transferring the liquid to a deethanizer within the NGL recovery unit for further cooling, and obtaining an ethane product and an NGL product from the cooled liquid.
    Type: Application
    Filed: May 12, 2023
    Publication date: November 14, 2024
    Inventors: Jinghua Chan, Robert L. Boulanger, Ying Zhang, Qi Ma
  • Publication number: 20240337441
    Abstract: Disclosed herein are systems and processes for removing heavies during the liquefaction of a natural gas. The processes include dissolving the heavies in the natural gas by adding external natural gas liquid (NGL), followed by a staged removal of the natural gas liquid (NGL) and dissolved heavies.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Inventors: Michael J. Calderon, Will T. James, Dale L. Embry, Jinghua Chan, Qi Ma
  • Patent number: 12111101
    Abstract: Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a feed gas is received and partially condensed into a two-phase stream by expanding the feed gas. A liquid containing fouling components is removed from the two-phase stream. A vapor generated from the two-phase stream is compressed into a compressed feed gas. The compressed feed gas is directed into a feed chiller heat exchanger. The compressed feed gas is free of the fouling components.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: October 8, 2024
    Assignee: CONOCOPHILLIPS COMPANY
    Inventors: Jinghua Chan, Paul R. Davies, Qi Ma, Michael J. Calderon, Dale L. Embry
  • Patent number: 12050055
    Abstract: Disclosed herein are systems and processes for removing heavies during the liquefaction of a natural gas. The processes include dissolving the heavies in the natural gas by adding external natural gas liquid (NGL), followed by a staged removal of the natural gas liquid (NGL) and dissolved heavies.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: July 30, 2024
    Assignee: CONOCOPHILLIPS COMPANY
    Inventors: Michael J. Calderon, Will T. James, Dale L. Embry, Jinghua Chan, Qi Ma
  • Publication number: 20230375261
    Abstract: Systems and methods for processing liquefied natural gas (LNG) can include an LNG production system with a methane refrigeration cycle downstream from an ethylene refrigeration cycle. The methane refrigeration cycle can be a closed loop methane refrigeration cycle that maintains a methane refrigerant separate from a natural gas feed, (e.g., compared to an open loop methane refrigeration cycle that extracts the methane refrigerant from the natural gas feed and recombines the methane refrigerant with the natural gas feed). The natural gas feed can be a medium or high nitrogen gas feed having a nitrogen content greater than 1.0% molarity.
    Type: Application
    Filed: May 19, 2023
    Publication date: November 23, 2023
    Inventors: Ying Zhang, Qi Ma, Wesley R. Qualls, Will T. James, Jinghua Chan
  • Publication number: 20230194161
    Abstract: Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a dry feed gas is received. The dry feed gas is chilled with clean vapor from a heavies removal column to form a chilled feed gas. The chilled feed gas is partially condensed into a vapor phase and a liquid phase. The liquid phase retains freezing components. The freezing components are extracted using a reflux stream in the heavies removal column. The freezing components are removed as a condensate. The vapor phase is compressed into a clean feed gas. The clean feed gas is free of the freezing components for downstream liquefaction.
    Type: Application
    Filed: February 15, 2023
    Publication date: June 22, 2023
    Inventors: Jinghua Chan, Qi Ma, Dale L. Embry, Attilio J. Praderio
  • Patent number: 11604025
    Abstract: Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a dry feed gas is received. The dry feed gas is chilled with clean vapor from a heavies removal column to form a chilled feed gas. The chilled feed gas is partially condensed into a vapor phase and a liquid phase. The liquid phase retains freezing components. The freezing components are extracted using a reflux stream in the heavies removal column. The freezing components are removed as a condensate. The vapor phase is compressed into a clean feed gas. The clean feed gas is free of the freezing components for downstream liquefaction.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: March 14, 2023
    Assignee: ConocoPhillips Company
    Inventors: Jinghua Chan, Qi Ma, Dale L. Embry, Attilio J. Praderio
  • Publication number: 20210116173
    Abstract: Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a dry feed gas is received. The dry feed gas is chilled with clean vapor from a heavies removal column to form a chilled feed gas. The chilled feed gas is partially condensed into a vapor phase and a liquid phase. The liquid phase retains freezing components. The freezing components are extracted using a reflux stream in the heavies removal column. The freezing components are removed as a condensate. The vapor phase is compressed into a clean feed gas. The clean feed gas is free of the freezing components for downstream liquefaction.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 22, 2021
    Inventors: Jinghua Chan, Qi Ma, Dale L. Embry, Attilio J. Praderio
  • Publication number: 20210095918
    Abstract: Disclosed herein are systems and processes for removing heavies during the liquefaction of a natural gas. The processes include dissolving the heavies in the natural gas by adding external natural gas liquid (NGL), followed by a staged removal of the natural gas liquid (NGL) and dissolved heavies.
    Type: Application
    Filed: October 1, 2020
    Publication date: April 1, 2021
    Inventors: Michael J. Calderon, Will T. James, Dale L. Embry, Jinghua Chan, Qi Ma
  • Publication number: 20200386474
    Abstract: Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a feed gas is received and partially condensed into a two-phase stream by expanding the feed gas. A liquid containing fouling components is removed from the two-phase stream. A vapor generated from the two-phase stream is compressed into a compressed feed gas. The compressed feed gas is directed into a feed chiller heat exchanger. The compressed feed gas is free of the fouling components.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 10, 2020
    Inventors: Jinghua Chan, Paul R. Davies, Qi Ma, Michael J. Calderon, Dale L. Embry
  • Publication number: 20090312648
    Abstract: A medical imaging system adaptively acquires anatomical images. The system includes a synchronization processor for providing a heart rate related synchronization signal derived from a patient cardiac function blood flow related parameter. The synchronization signal enables adaptive variation in timing of acquisition within successive heart cycles of each individual image frame of multiple sequential image frames. An image acquisition device initiates acquisition of anatomical images of a portion of patient anatomy in response to the synchronization signal. A display processor presents images, acquired by the acquisition device and synchronized with the synchronization signal, to a user on a reproduction device. The image acquisition device adaptively selects image pixel resolution of individual image frames of the multiple sequential image frames in response to data identifying a heart cycle segment so that successively acquired image frames have different image pixel resolution within a single heart cycle.
    Type: Application
    Filed: March 10, 2009
    Publication date: December 17, 2009
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Hongxuan Zhang, Harold James Wade, Jinghua Chan