Patents by Inventor Shijie Li

Shijie 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).

  • Method for increasing yields of light oil and total liquid products, promoting the combustion of CO and reducing NOx emission in flue gas in the petroleum refining FCC process and the improved FCC catalyst
    Publication number: 20040004024
    Abstract: The present invention relates to non-noble metal catalyst comprising Cu—Al/Ce—Al complex oxides and aluminum oxide support. The catalysts comprise Ce—Al complex oxide and Cu—Al complex oxide successively loaded on the aluminum oxide support, wherein the loading weight ratio is 0.02-0.10 for Ce—Al—O/Al2O3 and 0.05-0.15 for Cu—Al—O/Al2O3, and the Cu—Al complex oxide is dispersed in cluster form on the surface of the aluminum oxide support pre-covered with high dispersed nanoparticles of the Ce—Al complex oxide.
    Type: Application
    Filed: April 21, 2003
    Publication date: January 8, 2004
    Inventors: Bingxiong Lin, Wanjing Zhang, Yingjun Liu, Shijie Li, Neng Li
  • Cu-Al/Ce-Al complex oxide combustion catalysts, their preparation and use
    Patent number: 6596249
    Abstract: The present invention relates to non-noble metal combustion catalyst for carbon monoxide comprising Cu—Al/Ce—Al complex oxides and aluminum oxide support. The catalysts comprise Ce—Al complex oxide and Cu—Al complex oxide successively loaded on the aluminum oxide support, wherein the loading weight ratio is 0.02-0.10 for Ce—Al—O/Al2O3 and 0.05-0.15 for Cu—Al—O/Al2O3, and the Cu—Al complex oxide is dispersed in cluster form on the surface of the aluminum oxide support pre-covered with high dispersed nanoparticles of the Ce—Al complex oxide. Furthermore, the present invention relates to a process for preparing the catalysts and their use as combustion promoter with high catalytic activity, high hydrothermal stability and ability of reducing NOx exhaust in the fluid catalytic cracking (FCC) process of petroleum refining.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: July 22, 2003
    Assignee: Peking University
    Inventors: Bingxiong Lin, Wanjing Zhang, Yingjun Liu, Shijie Li, Neng Li
  • Cu-AI/Ce-AI complex oxide combustion catalysts, their preparation and use
    Publication number: 20020061273
    Abstract: The present invention relates to non-noble metal combustion catalyst for carbon monoxide comprising Cu—Al/Ce—Al complex oxides and aluminum oxide support. The catalysts comprise Ce—Al complex oxide and Cu—Al complex oxide successively loaded on the aluminum oxide support, wherein the loading weight ratio is 0.02-0.10 for Ce—Al—O/Al2O3 and 0.05-0.15 for Cu—Al—O/Al2O3, and the Cu—Al complex oxide is dispersed in cluster form on the surface of the aluminum oxide support pre-covered with high dispersed nanoparticles of the Ce—Al complex oxide. Furthermore, the present invention relates to a process for preparing the catalysts and their use as combustion promoter with high catalytic activity, high hydrothermal stability and ability of reducing NOx exhaust in the fluid catalytic cracking (FCC) process of petroleum refining.
    Type: Application
    Filed: April 4, 2001
    Publication date: May 23, 2002
    Inventors: Bingxiong Lin, Wanjing Zhang, Yingjun Liu, Shijie Li, Neng Li