Patents by Inventor Yuzhuo ZHAO

Yuzhuo ZHAO 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: 10639618
    Abstract: A method of wax oil hydrocracking includes the steps of pre-hydrotreating wax oil to obtain a pre-hydrotreated material flow; controlling the pre-hydrotreated material flow and a hydrogen-containing material flow to contact with a first hydrocracking catalyst to obtain a first hydrocracked material flow, and dividing the first hydrocracked material flow into a first hydrocracked material flow A and a first hydrocracked material flow B; controlling the flow B and a hydrogen-containing material flow to contact with a second hydrocracking catalyst to obtain a second hydrocracked material flow, and then separating and fractionating the second hydrocracked material flow to obtain a hydrocracked tail oil product; controlling the flow A, at least a part of the hydrocracked tail oil product, and a hydrogen-containing material flow to contact with a hydrogenation isocracking catalyst to obtain a hydrogenation isocracked material flow, and then separating and fractionating the obtained hydrogenation isocracked material
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 5, 2020
    Assignees: China Petroleum & Chemical Corporation, Dalian Research Institute of Petroleum and Petrochemicals, SINOPEC CORP.
    Inventors: Tao Liu, Baozhong Li, Ronghui Zeng, Yuzhuo Zhao, Zhenmin Bai, Xiangchen Fang, Yan Wang, Xuehui Zhang, Chang Liu
  • Publication number: 20190201882
    Abstract: A method of wax oil hydrocracking includes the steps of pre-hydrotreating wax oil to obtain a pre-hydrotreated material flow; controlling the pre-hydrotreated material flow and a hydrogen-containing material flow to contact with a first hydrocracking catalyst to obtain a first hydrocracked material flow, and dividing the first hydrocracked material flow into a first hydrocracked material flow A and a first hydrocracked material flow B; controlling the flow B and a hydrogen-containing material flow to contact with a second hydrocracking catalyst to obtain a second hydrocracked material flow, and then separating and fractionating the second hydrocracked material flow to obtain a hydrocracked tail oil product; controlling the flow A, at least a part of the hydrocracked tail oil product, and a hydrogen-containing material flow to contact with a hydrogenation isocracking catalyst to obtain a hydrogenation isocracked material flow, and then separating and fractionating the obtained hydrogenation isocracked material
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Tao LIU, Baozhong LI, Ronghui ZENG, Yuzhuo ZHAO, Zhenmin BAI, Xiangchen FANG, Yan WANG, Xuehui ZHANG, Chang LIU