Patents by Inventor He Mingyuan

He Mingyuan 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).

  • Cracking catalyst for the production of light olefins
    Patent number: 5380690
    Abstract: A cracking catalyst for the production of light olefins comprises 0-70% (based on the weight of the catalyst) of clay, 5-99% of inorganic oxides, and 1-50% of zeolite. The zeolite in the catalyst is a mixture of 0-25 wt % of REY or high silica Y zeolite and 75-100 wt % of phosphorus and rare earth containing high silica zeolite having a structure of pentasil. The catalyst exhibits higher hydrothermal activity-stability, conversion level, and C.sub.2 -C.sub.4 olefin yields in cracking reaction, comparing with the catalyst using HZSM-5 zeolite as active component.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: January 10, 1995
    Assignee: China Petro-Chemical Corporation
    Inventors: Shi Zhicheng, Shi Wenyuan, Ye Yifang, Ge Xingpin, Cao Ping, Liu Shunhua, Xie Chaogang, Li Zaiting, Shu Xingtian, Yang Xiaoming, Fu Wei, Zhou Meng, He Mingyuan