Patents by Inventor Jiahuan Wang

Jiahuan Wang 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).

  • Patent number: 6207611
    Abstract: A catalyst for hydrodemetalization of heavy oil, especially residuum oil, and a process for preparing the same, wherein said catalyst comprises the metal elements of Groups VIII and/or VIB as active components supported on an alumina carrier having large pores. The total pore volume of said carrier is in the range of 0.80˜1.20 ml/g (by mercury porosimetry method), the specific surface area in the range of 110˜200 m2/g, the peak pore diameter in the range of 15˜20 nm, and the bulk density in the range of 0.50˜0.60 g/ml. In the process of the invention, a physical pore-enlarging agent and a chemical pore-enlarging agent are added simultaneously during the mixing of the pseudoboehmite to a plastic mass, then extruding, drying, calcining, the carrier is obtained, then impregnating with active components by spraying onto the carrier, after drying and calcining, the catalyst is obtained.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: March 27, 2001
    Assignees: China Petro-Chemical Corporation, Fushun Research Institute of Petroleum and Petrochemicals, SINOPEC
    Inventors: Suhua Sun, Weiping Fang, Jiahuan Wang, Guolin Wu, Jianan Sun, Gang Wang, Zemin Fu, Hao Zhang, Yonglin Wang
  • Patent number: 5759951
    Abstract: Disclosed is a hydrogenation demetalization catalyst with a stabilized alkali metal, havinga). an alumina carrier,b). 0.01-10.2% by weight of an alkali metal,c). 0-3.0% by weight of a Group VIB element, andd). 0-3.0% by weight of a Group VIII element of the periodic table of elements,with a pore volume of 0.4-1.3 ml/g, a surface area of 100-230 m.sup.2 /g, comprising a nonmetallic element selected from the group consisting of P, Si, B and F with the atomic ratio of said nonmetallic element to said alkali metal being 0.5-40.0. Also disclosed is a process for preparing the same.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: June 2, 1998
    Assignees: Fushun Research Institute of Petroleum and Petrochemicals, China Petro-Chemical Corporation
    Inventors: Yusheng Zhao, Jiahuan Wang, Zhiwu Wang, Xilai Liu, Jingchun Shao, Xiaojing Chen, Wei Li, Shaowu Wang