Patents by Inventor Chonglong Bao

Chonglong Bao 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).

  • System and method used to recycle exhaust gas during olefin polymer production
    Patent number: 11007474
    Abstract: A system used to recycle exhaust gas during olefin polymer production, comprising: a compression cooling mechanism (101); a hydrocarbon membrane separation mechanism (102) and a hydrogen membrane separation mechanism (103), both connected to a first outlet (202) of the compression cooling mechanism; and a deep cooling mechanism (104) connected to a first outlet (208) of the hydrogen membrane separation mechanism. A method used to recycle exhaust gas during olefin polymer production, comprising a compression cooling step, a hydrocarbon membrane separation step, a hydrogen membrane separation step and a deep cooling step.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: May 18, 2021
    Assignee: HANGZHOU OUYUAN TECHNOLOGY CO., LTD
    Inventor: Chonglong Bao
  • Process for recovering valuables from vent gas in polyolefin production
    Patent number: 10456728
    Abstract: A process for recovering valuables from vent gas in polyolefin production is disclosed. The process includes a compression cooling separation step, a heavy hydrocarbon separation step, a light hydrocarbon separation step, a N2 purification step, and a turbo expansion step in sequence. The N2 purification step comprises a membrane separation procedure. The light hydrocarbon separation step comprises at least one gas-liquid separation procedure.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: October 29, 2019
    Assignee: Dalian Eurofilm Industrial Ltd.
    Inventors: Guodong Du, Yanxun Ma, Xiaobo Zhou, Chonglong Bao
  • SYSTEM AND METHOD USED TO RECYCLE EXHAUST GAS DURING OLEFIN POLYMER PRODUCTION
    Publication number: 20190282955
    Abstract: A system used to recycle exhaust gas during olefin polymer production, comprising: a compression cooling mechanism (101); a hydrocarbon membrane separation mechanism (102) and a hydrogen membrane separation mechanism (103), both connected to a first outlet (202) of the compression cooling mechanism; and a deep cooling mechanism (104) connected to a first outlet (208) of the hydrogen membrane separation mechanism. A method used to recycle exhaust gas during olefin polymer production, comprising a compression cooling step, a hydrocarbon membrane separation step, a hydrogen membrane separation step and a deep cooling step.
    Type: Application
    Filed: June 6, 2019
    Publication date: September 19, 2019
    Inventor: Chonglong Bao
  • Process for Recovering Valuables from Vent Gas in Polyolefin Production
    Publication number: 20180361305
    Abstract: A process for recovering valuables from vent gas in polyolefin production is disclosed. The process includes a compression cooling separation step, a heavy hydrocarbon separation step, a light hydrocarbon separation step, a N2 purification step, and a turbo expansion step in sequence. The N2 purification step comprises a membrane separation procedure. The light hydrocarbon separation step comprises at least one gas-liquid separation procedure.
    Type: Application
    Filed: January 4, 2017
    Publication date: December 20, 2018
    Inventors: Guodong Du, Yanxun Ma, Xiaobo Zhou, Chonglong Bao