Patents by Inventor Hongjiang Sun

Hongjiang Sun 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).

  • Process for carrying out gas-liquid countercurrent processing
    Patent number: 7435336
    Abstract: The present invention relates to a process for carrying our gas-liquid countercurrent processing comprising passing the liquid material and the gas reactant in countercurrent flow through the fixed bed of catalyst in a reactor, characterized in that the fixed bed of catalyst includes two or more catalyst layers, with the difference of voidage between the adjacent catalyst layers being at least 0.05. The voidages of the catalyst layers can be increased or decreased in the direction of the flow of the liquid phase. The process of the invention can be effected with an increased range of gas-liquid ratio and an improved stability and flexibility.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: October 14, 2008
    Assignees: China Petroleum & Chenical Corporation, Fushun Research Institute of Petroleum and Petrochemicals Sinopec, Corp.
    Inventors: Baoping Han, Xiangchen Fang, Ronghui Zeng, Ping Wu, Mei Jin, Hongjiang Sun
  • Process for carrying out gas-liquid countercurrent processing
    Publication number: 20040112794
    Abstract: The present invention relates to a process for carrying our gas-liquid countercurrent processing comprising passing the liquid material and the gas reactant in countercurrent flow through the fixed bed of catalyst in a reactor, characterized in that the fixed bed of catalyst includes two or more catalyst layers, with the difference of voidage between the adjacent catalyst layers being at least 0.05. The voidages of the catalyst layers can be increased or decreased in the direction of the flow of the liquid phase. The process of the invention can be effected with an increased range of gas-liquid ratio and an improved stability and flexibility.
    Type: Application
    Filed: October 9, 2003
    Publication date: June 17, 2004
    Applicants: China Petroleum & Chemical Corporation, Fushun Research Institute of Petroleum, Petrochemicals Sinopec Corp.
    Inventors: Baoping Han, Xiangchen Fang, Ronghui Zeng, Ping Wu, Mei Jin, Hongjiang Sun