Patents by Inventor Yuanbing Xi

Yuanbing Xi 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 reducing sulfur and olefin contents in gasoline
    Patent number: 7341657
    Abstract: Disclosed is a process for reducing sulfur and olefin contents in gasoline, comprising contacting gasoline feedstock and hydrogen with a hydrorefining catalyst and an paraffin-modification catalyst. The effluent of the process is separated to obtain a hydrotreated gasoline fraction free of mercaptan and having a low content of sulfur, e.g. less than 200 ppm, a low content of olefins, e.g. less than 20% by volume, and little octane loss. The hydrotreated gasoline fraction can be used as blending component of a final gasoline product.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: March 11, 2008
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Dadong Li, Yulin Shi, Yunjian Hu, Yuanbing Xi, Mingfeng Li, Yahua Shi
  • Process for reducing sulfur and olefin contents in gasoline
    Publication number: 20050133410
    Abstract: Disclosed is a process for reducing sulfur and olefin contents in gasoline, comprising contacting gasoline feedstock and hydrogen with a hydrorefining catalyst and an paraffin-modification catalyst. The effluent of the process is separated to obtain a hydrotreated gasoline fraction free of mercaptan and having a low content of sulfur, e.g. less than 200 ppm, a low content of olefins, e.g. less than 20% by volume, and little octane loss. The hydrotreated gasoline fraction can be used as blending component of a final gasoline product.
    Type: Application
    Filed: December 22, 2003
    Publication date: June 23, 2005
    Applicants: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing Sinopec
    Inventors: Dadong Li, Yulin Shi, Yunjian Hu, Yuanbing Xi, Mingfeng Li, Yahua Shi