Patents by Inventor Huifeng Xue

Huifeng Xue 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).

  • AUTOMATIC SEPARATION APPARATUS FOR FOUR FRACTIONS OF HEAVY OIL AND SEPARATION METHOD THEREOF
    Publication number: 20230001327
    Abstract: The present disclosure provides an automatic separation apparatus for four fractions of heavy oil and a separation method thereof, wherein the apparatus includes a solvent reservoir tank (1), a separation unit for four fractions of heavy oil (100) and a receiving apparatus (9). The separation unit for four fractions of heavy oil (100) includes: a filter disc (4) having one end in communication with the solvent reservoir tank (1), and the other end in communication with an inlet of a pre-column flow path switching valve (5); a chromatographic column (6) having an inlet in communication with an outlet of the pre-column flow path switching valve (5), and an outlet in communication with an inlet of a post-column flow path switching valve (8). The receiving apparatus is in communication with an outlet of the post-column flow path switching valve (8).
    Type: Application
    Filed: October 26, 2020
    Publication date: January 5, 2023
    Inventors: Qing Cao, Dawei Wen, Shengbao He, Yuan Xiu, Lin Tian, Dingzhong Yang, Jing He, Minna Dou, Fei Chen, Kunhong Liu, Chenchen Li, Huifeng Xue, Jianming Wang
  • Method for preparing hydrorefining catalyst
    Patent number: 8785345
    Abstract: A method for preparing hydrorefining catalyst comprises the following steps: (1) mixing an aqueous ammonia solution with a polyamine complexing agent to form a mixed solvent; (2) adding a cobalt salt to the mixed solvent, dissolving the cobalt salt, and then adding a molybdenum salt and optional salts of other active components, and dissolving them to prepare an impregnating solution; and (3) impregnating a support with the impregnating solution, followed by aging, drying, and activating the impregnated support to form a hydrorefining catalyst. The hydrorefining catalyst prepared by this method has good activity, selectivity and stability in use.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: July 22, 2014
    Assignee: Petrochina Company Limited
    Inventors: Shunqin Liang, Wei Xie, Zongbao Wang, Huifeng Xue, Guangbi Gong, Tinghai Wang, Jie Wu, Limin Sun, Hongmin Kang, Dehua Huang, Shufeng Wang, Yundi Zheng, Cailan Jiang, Longgang Lv
  • METHOD FOR PREPARING HYDROREFINING CATALYST
    Publication number: 20130225400
    Abstract: A method for preparing hydrorefining catalyst comprises the following steps: (1) mixing an aqueous ammonia solution with a polyamine complexing agent to form a mixed solvent; (2) adding a cobalt salt to the mixed solvent, dissolving the cobalt salt, and then adding a molybdenum salt and optional salts of other active components, and dissolving them to prepare an impregnating solution; and (3) impregnating a support with the impregnating solution, followed by aging, drying, and activating the impregnated support to form a hydrorefining catalyst. The hydrorefining catalyst prepared by this method has good activity, selectivity and stability in use.
    Type: Application
    Filed: August 24, 2012
    Publication date: August 29, 2013
    Applicant: PetroChina Company Limited
    Inventors: Shunqin Liang, Wei Xie, Zongbao Wang, Huifeng Xue, Guangbi Gong, Tinghai Wang, Jie Wu, Limin Sun, Hongmin Kang, Dehua Huang, Shufeng Wang, Yundi Zheng, Cailan Jiang, Longgang Lv