Patents by Inventor Wang Yamin

Wang Yamin 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 the production of LPG rich in olefins and high quality gasoline
    Patent number: 5326465
    Abstract: A process for producing LPG rich in propylene, butylenes and high octane number gasoline by catalytic conversion which comprises contacting the preheated hydrocarbon feedstock with a solid acidic catalyst which contains rare-earth-containing high silica zeolite having the structure of a pentasil (ZRP), rare-earth-Y zeolite (REY) and high silica Y zeolite in a riser or a fluidized bed reactor, at a temperature in the range of from about 480.degree. C. to about 550.degree. C., a pressure in the range of from about 130 KPa to about 350 KPa, a weight hourly space velocity in the range of 1 to 150 hr-1, a catalyst-to-oil ratio in the range of 4 to 15, and a steam-to-feedstock ratio in the range of 0.05 to 0.12:1 by weight.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: July 5, 1994
    Assignees: China Petro-Chemical Corporation, Research Institute of Petroleum Processing
    Inventors: Huo Yongqing, Wang Zeyu, Wang Yamin, Lu Yukang