Patents by Inventor Xiaoning REN

Xiaoning REN 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).

  • Publication number: 20250028872
    Abstract: An intelligent modeling method of a Selective Catalytic Reduction (SCR) reaction process of diesel vehicle exhaust includes the following steps: S1: acquiring a time sequence data set of an SCR reaction process of diesel vehicle exhaust for modeling, where the time sequence data set includes an input variable sequence and an output variable sequence; S2: selecting a multi-layer type-II fuzzy neural network as an SCR reaction process model of diesel vehicle exhaust based on the input variable sequence and the output variable sequence obtained in Si. The intelligent modeling method of the SCR reaction process of diesel vehicle exhaust can effectively model dynamic characteristics of the SCR reaction process such as nonlinearity, time delay and uncertain interference, and improve the accuracy, robustness and generalization ability of the SCR reaction process model.
    Type: Application
    Filed: September 23, 2024
    Publication date: January 23, 2025
    Applicant: CATARC Automotive Test Center (Tianjin) Co., Ltd
    Inventors: Zhenguo LI, Maoxuan WANG, Hanming WU, Yuankai SHAO, Xiaoning REN, Kaixiang LI, Zhengjun YANG, Maodong FANG, Lingwei MENG, Wang ZHANG, Qiang LIU
  • Patent number: 11992827
    Abstract: The present disclosure provides msect-4 molecular sieves with OFF and ERI topologies, a preparation method therefor, and applications thereof. An eight-membered ring small pore molecular sieve used as a raw material is dispersed in an aqueous phase. Following that, caustic potash, an aluminum source, and an organic structure-directing agent (OSDA) are added. The pH value is then adjusted to be greater than 10, and a silicon source is introduced to attain the desired silicon-aluminum ratio, followed by stirring reaction, aging, crystallization, filtration, washing, ammonia exchange reaction, drying, and calcination. The msect-4 molecular sieves with OFF and ERI topologies, the preparation method therefor, and applications exhibit excellent hydrothermal stability, a plurality of adsorption sites exposed by a regular bone-like structure, and a large specific surface area.
    Type: Grant
    Filed: June 19, 2023
    Date of Patent: May 28, 2024
    Assignees: CHINA AUTOMOTIVE TECHNOLOGY AND RESEARCH CENTER CO., LTD, CATARC AUTOMOTIVE TEST CENTER (TIANJIN) CO., LTD
    Inventors: Zhenguo Li, Kaixiang Li, Zhixin Wu, Xiaoning Ren, Jianhai Wang, Yuankai Shao, Hanming Wu, Li Zhang, Cheng Lv, Lingfeng Jia
  • Patent number: 11992828
    Abstract: The present disclosure provides molecular sieves with intergrown phases of AEI and CHA topologies and a catalyst thereof. A preparation method for the molecular sieves include the following steps: mixing a hydroxyphosphono organic alkali R with an aluminum source and a silicon source to obtain a sol-gel precursor, putting the sol-gel precursor into a closed hydrothermal synthesis reactor for reaction, filtering the reaction solution, washing, drying, and calcination to obtain the molecular sieves with intergrown phases of AEI and CHA topologies. The molecular sieves and the catalyst thereof can be directly synthesized under mild conditions with a hydroxyphosphono organic alkali as a structure-directing agent and a phosphorus source, have a pH value of 6-9 and low requirements for corrosion resistance of production devices, and are suitable for large-scale production.
    Type: Grant
    Filed: June 19, 2023
    Date of Patent: May 28, 2024
    Assignees: CHINA AUTOMOTIVE TECHNOLOGY AND RESEARCH CENTER CO., LTD, CATARC AUTOMOTIVE TEST CENTER (TIANJIN) CO., LTD
    Inventors: Kaixiang Li, Zhenguo Li, Xiaoning Ren, Yuankai Shao, Jianhai Wang, Li Zhang, Lingfeng Jia, Cheng Lv
  • Publication number: 20230339767
    Abstract: An H-type molecular sieve having the CHA framework type is directly prepared through hydrothermal synthesis by using the compounds with the chemical formulas (C4H8NO)3PO and/or (C4H8NO)2PO(C4H10N) as structure-directing agents. The structure-directing agent has a molecular topological structure, which is conducive to quickly and efficiently building a molecular sieve having the CHA framework type, so that the prepared product has a regular morphology and high relative crystallinity. The synthesis method can directly synthesize the H-type molecular sieve having the CHA framework type with a relative crystallinity greater than 95%. The molecular sieve product can be obtained by direct drying and calcination without an ammonium exchange process, so the synthesis method is simple, easy to perform, and suitable for large-scale production.
    Type: Application
    Filed: June 20, 2023
    Publication date: October 26, 2023
    Applicants: CHINA AUTOMOTIVE TECHNOLOGY AND RESEARCH CENTER CO., LTD, CATARC AUTOMOTIVE TEST CENTER (TIANJIN) CO., LTD
    Inventors: Kaixiang LI, Zhenguo LI, Xiaoning REN, Congjie LV, Jianhai WANG, Lingfeng JIA, Yuankai SHAO, Cheng LV
  • Publication number: 20230330650
    Abstract: The present disclosure provides molecular sieves with intergrown phases of AEI and CHA topologies and a catalyst thereof. A preparation method for the molecular sieves include the following steps: mixing a hydroxyphosphono organic alkali R with an aluminum source and a silicon source to obtain a sol-gel precursor, putting the sol-gel precursor into a closed hydrothermal synthesis reactor for reaction, filtering the reaction solution, washing, drying, and calcination to obtain the molecular sieves with intergrown phases of AEI and CHA topologies. The molecular sieves and the catalyst thereof can be directly synthesized under mild conditions with a hydroxyphosphono organic alkali as a structure-directing agent and a phosphorus source, have a pH value of 6-9 and low requirements for corrosion resistance of production devices, and are suitable for large-scale production.
    Type: Application
    Filed: June 19, 2023
    Publication date: October 19, 2023
    Applicants: CHINA AUTOMOTIVE TECHNOLOGY AND RESEARCH CENTER CO., LTD, CATARC AUTOMOTIVE TEST CENTER (TIANJIN) CO., LTD
    Inventors: Kaixiang LI, Zhenguo LI, Xiaoning REN, Yuankai SHAO, Jianhai WANG, Li ZHANG, Lingfeng JIA, Cheng LV
  • Publication number: 20230330649
    Abstract: The present disclosure provides msect-4 molecular sieves with OFF and ERI topologies, a preparation method therefor, and applications thereof. An eight-membered ring small pore molecular sieve used as a raw material is dispersed in an aqueous phase. Following that, caustic potash, an aluminum source, and an organic structure-directing agent (OSDA) are added. The pH value is then adjusted to be greater than 10, and a silicon source is introduced to attain the desired silicon-aluminum ratio, followed by stirring reaction, aging, crystallization, filtration, washing, ammonia exchange reaction, drying, and calcination. The msect-4 molecular sieves with OFF and ERI topologies, the preparation method therefor, and applications exhibit excellent hydrothermal stability, a plurality of adsorption sites exposed by a regular bone-like structure, and a large specific surface area.
    Type: Application
    Filed: June 19, 2023
    Publication date: October 19, 2023
    Applicants: CHINA AUTOMOTIVE TECHNOLOGY AND RESEARCH CENTER CO., LTD, CATARC AUTOMOTIVE TEST CENTER (TIANJIN) CO., LTD
    Inventors: Zhenguo LI, Kaixiang LI, Zhixin WU, Xiaoning REN, Jianhai WANG, Yuankai SHAO, Hanming WU, Li ZHANG, Cheng LV, Lingfeng JIA