Patents by Inventor Chengyuan Yuan

Chengyuan Yuan 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).

  • Method for modifying molecular sieve and a catalytic cracking catalyst containing the molecular sieve
    Patent number: 11084024
    Abstract: The invention relates to a molecular sieve modification method and a catalytic cracking catalyst containing a molecular sieve. The method comprises: mixing a solution containing an ion of a Group MB metal in the periodic table, an organic complexing agent, and/or a dispersant and a precipitation agent, and stirring the same to form a suspension containing a precipitant of a Group IIIB element; and mixing the resulting precipitant and a molecular sieve slurry, stirring the same to obtain a mixed slurry containing the precipitant of the Group MB element and a molecular sieve, and performing spray drying and optional calcination, to obtain a modified molecular sieve. The catalyst comprises, as calculated based on the catalyst mass being 100%, 10-55% of a modified molecular sieve (on a dry basis), 10-80% of clay (on a dry basis), 0-40% of an inorganic oxide (on an oxide basis), and 5-40% of a binding agent (on an oxide basis). The catalyst has good activity stability and heavy metal contamination resistance.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: August 10, 2021
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Shuhong Sun, Xiaoliang Huang, Haitao Zhang, Gengzhen Cao, Yunfeng Zheng, Lin Wang, Zhishuang Pan, Zhengguo Tan, Yahong Wang, Jinjun Cai, Hongchang Duan, Xueli Li, Chengyuan Yuan, Dong Wang
  • Method for Modifying Molecular Sieve and a Catalytic Cracking Catalyst Containing the Molecular Sieve
    Publication number: 20180229223
    Abstract: The invention relates to a molecular sieve modification method and a catalytic cracking catalyst containing a molecular sieve. The method comprises: mixing a solution containing an ion of a Group MB metal in the periodic table, an organic complexing agent, and/or a dispersant and a precipitation agent, and stirring the same to form a suspension containing a precipitant of a Group IIIB element; and mixing the resulting precipitant and a molecular sieve slurry, stirring the same to obtain a mixed slurry containing the precipitant of the Group MB element and a molecular sieve, and performing spray drying and optional calcination, to obtain a modified molecular sieve. The catalyst comprises, as calculated based on the catalyst mass being 100%, 10-55% of a modified molecular sieve (on a dry basis), 10-80% of clay (on a dry basis), 0-40% of an inorganic oxide (on an oxide basis), and 5-40% of a binding agent (on an oxide basis). The catalyst has good activity stability and heavy metal contamination resistance.
    Type: Application
    Filed: August 4, 2016
    Publication date: August 16, 2018
    Inventors: Shuhong Sun, Xiaoliang Huang, Haitao Zhang, Gengzhen Cao, Yunfeng Zheng, Lin Wang, Zhishuang Pan, Zhengguo Tan, Yahong Wang, Jinjun Cai, Hongchang Duan, Xueli Li, Chengyuan Yuan, Dong Wang