Patents by Inventor Shucheng WANG

Shucheng WANG 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).

  • Method for reducing carbon deposits on catalyst in recycling HFC-23
    Patent number: 11878290
    Abstract: Disclosed is a method for reducing carbon deposits on a catalyst in recycling HFC-23. The recycling is realized by means of a fluorine-chlorine exchange reaction with HFC-23 and a halogenated hydrocarbon. The catalyst for the fluorine-chlorine exchange reaction comprises a main body catalyst and a precious metal. The precious metal is selected from at least one of Pt, Pd, Ru, Au or Rh, and has an addition amount of 0.01-2 wt %. During the fluorine-chlorine exchange reaction, hydrogen gas is introduced. The invention has advantages of good catalyst stability, long life, etc.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: January 23, 2024
    Assignees: SINOCHEM LANTIAN CO., LTD., ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI-TECH CO., LTD., ZHEJIANG RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD.
    Inventors: Jianjun Zhang, Wenfeng Han, Shucheng Wang, Wucan Liu, Feixiang Zhou
  • METHOD FOR IMPROVING STABILITY OF CATALYST IN RECYCLING HFC-23
    Publication number: 20220105504
    Abstract: Disclosed is a method for improving the stability of a catalyst in recycling HFC-23. The recycling is realized by means of a fluorine-chlorine exchange reaction with HFC-23 and a halogenated hydrocarbon. The catalyst for the fluorine-chlorine exchange reaction comprises a main body catalyst and a metal oxide, wherein the metal oxide is selected from at least one metal oxide of K, Na, Fe, Co, Cu, Ni, Zn or Ti, and has an addition amount of 0.1-5 wt %. The present invention has advantages such as a good catalyst stability, a long life, and a low content of by-product CFC-12.
    Type: Application
    Filed: February 24, 2020
    Publication date: April 7, 2022
    Inventors: Wucan LIU, Jianjun ZHANG, Wenfeng HAN, Shucheng WANG, Feixiang ZHOU
  • METHOD FOR REDUCING CARBON DEPOSITS ON CATALYST IN RECYCLING HFC-23
    Publication number: 20220097030
    Abstract: Disclosed is a method for reducing carbon deposits on a catalyst in recycling HFC-23. The recycling is realized by means of a fluorine-chlorine exchange reaction with HFC-23 and a halogenated hydrocarbon. The catalyst for the fluorine-chlorine exchange reaction comprises a main body catalyst and a precious metal. The precious metal is selected from at least one of Pt, Pd, Ru, Au or Rh, and has an addition amount of 0.01-2 wt %. During the fluorine-chlorine exchange reaction, hydrogen gas is introduced. The invention has advantages of good catalyst stability, long life, etc.
    Type: Application
    Filed: February 24, 2020
    Publication date: March 31, 2022
    Inventors: Jianjun ZHANG, Wenfeng HAN, Shucheng WANG, Wucan LIU, Feixiang ZHOU