Patents by Inventor Dezhi Shi

Dezhi Shi 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).

  • Aromatization catalyst and preparation process and use thereof
    Patent number: 11305265
    Abstract: An aromatization catalyst and preparation process and use thereof is set forth. The catalyst comprises an inorganic oxide and a modified Ga-ZSM-5 zeolite, which comprises a modified ZSM-5 zeolite with a hierarchical macro-meso-microporosity and gallium deposited in channels of and/or on surfaces of the modified ZSM-5 zeolite. The hierarchical porosity of the modified ZSM-5 zeolite in the catalyst can reduce diffusion resistance of products during the aromatization reaction, thereby retarding carbon depositing rate and substantially improving catalytic activity, aromatic hydrocarbon selectivity, stability and lifetime of the catalyst. When being used in aromatization of propane, the catalyst exhibits a high stability, a lifetime of more than 320 hours, and a selectivity to aromatic hydrocarbons of up to 73.3 wt. %.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: April 19, 2022
    Assignees: Institute of Coal Chemistry, Chinese Academy of Sciences, Shanxi Lu'an Mining (Group) Co., Ltd.
    Inventors: Weibin Fan, Dezhi Shi, Huaqing Zhu, Mei Dong, Jianguo Wang, Zhiwei Wu, Weiyong Jiao, Junyi Liu, Dongfei Wang, Jinbo Li, Yanbin Cui, Yibo Zhang
  • Aromatization Catalyst And Preparation Process And Use Thereof
    Publication number: 20210213432
    Abstract: An aromatization catalyst and preparation process and use thereof is set forth. The catalyst comprises an inorganic oxide and a modified Ga-ZSM-5 zeolite, which comprises a modified ZSM-5 zeolite with a hierarchical macro-meso-microporosity and gallium deposited in channels of and/or on surfaces of the modified ZSM-5 zeolite. The hierarchical porosity of the modified ZSM-5 zeolite in the catalyst can reduce diffusion resistance of products during the aromatization reaction, thereby retarding carbon depositing rate and substantially improving catalytic activity, aromatic hydrocarbon selectivity, stability and lifetime of the catalyst. When being used in aromatization of propane, the catalyst exhibits a high stability, a lifetime of more than 320 hours, and a selectivity to aromatic hydrocarbons of up to 73.3 wt. %.
    Type: Application
    Filed: August 14, 2020
    Publication date: July 15, 2021
    Inventors: Weibin Fan, Dezhi Shi, Huaqing Zhu, Mei Dong, Jianguo Wang, Zhiwei Wu, Weiyong Jiao, Junyi Liu, Dongfei Wang, Jinbo Li, Yanbin Cui, Yibo Zhang