Patents by Inventor Langyou Wen

Langyou Wen 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).

  • Catalytic conversion process and system with increased propylene production
    Patent number: 12180148
    Abstract: A catalytic conversion process for producing propylene includes the steps of: 1) providing a starting material comprising olefin(s) having 4 or more carbon atoms; 2) pretreating the starting material to obtain a propylene precursor comprising olefin(s) having 3×2n carbon atoms, wherein n is an integer greater than or equal to 1; and 3) subjecting the propylene precursor to a catalytic cracking reaction to obtain a reaction product comprising propylene.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 31, 2024
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Youhao Xu, Xuhui Bai, Langyou Wen, Xin Wang, Mingyuan He
  • Alkylation reaction apparatus, reaction system, and liquid acid catalyzed alkylation reaction process
    Patent number: 11890589
    Abstract: An alkylation reaction apparatus has n reactors. In the n reactors, there are m reactors including the first reactor that have three reaction zones as defined below. According to the flow direction order of alkylation reaction streams, the three reaction zones are an x reaction zone, a y reaction zone and a z reaction zone respectively; based on the mixing intensity, the mixing intensity of the y reaction zone>the mixing intensity of the x reaction zone>the mixing intensity of the z reaction zone, wherein n?1 and n?m. An alkylation reaction system includes the aforementioned alkylation reaction apparatus, and a liquid acid catalyzed alkylation reaction process by using the aforementioned alkylation reaction apparatus or the aforementioned alkylation reaction system.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: February 6, 2024
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Minghui Dong, Baoning Zong, Xuhong Mu, Yibin Luo, Hua Chen, Jinyu Zheng, Langyou Wen
  • Catalytic conversion process and system with increased propylene production
    Publication number: 20220177390
    Abstract: A catalytic conversion process for producing propylene includes the steps of: 1) providing a starting material comprising olefin(s) having 4 or more carbon atoms; 2) pretreating the starting material to obtain a propylene precursor comprising olefin(s) having 3×2n carbon atoms, wherein n is an integer greater than or equal to 1; and 3) subjecting the propylene precursor to a catalytic cracking reaction to obtain a reaction product comprising propylene.
    Type: Application
    Filed: March 17, 2020
    Publication date: June 9, 2022
    Inventors: Youhao XU, Xuhui BAI, Langyou WEN, Xin WANG, Mingyuan HE
  • ALKYLATION REACTION APPARATUS, REACTION SYSTEM, AND LIQUID ACID CATALYZED ALKYLATION REACTION PROCESS
    Publication number: 20220126252
    Abstract: An alkylation reaction apparatus has n reactors. In the n reactors, there are m reactors including the first reactor that have three reaction zones as defined below. According to the flow direction order of alkylation reaction streams, the three reaction zones are an x reaction zone, a y reaction zone and a z reaction zone respectively; based on the mixing intensity, the mixing intensity of the y reaction zone>the mixing intensity of the x reaction zone>the mixing intensity of the z reaction zone, wherein n?1 and n?m. An alkylation reaction system includes the aforementioned alkylation reaction apparatus, and a liquid acid catalyzed alkylation reaction process by using the aforementioned alkylation reaction apparatus or the aforementioned alkylation reaction system.
    Type: Application
    Filed: February 21, 2020
    Publication date: April 28, 2022
    Inventors: Minghui DONG, Baoning ZONG, Xuhong MU, Yibin LUO, Hua CHEN, Jinyu ZHENG, Langyou WEN
  • Process and apparatus for co-producing cyclohexanol and alkanol
    Patent number: 9561991
    Abstract: This invention relates to a process for co-producing cyclohexanol and alkanol, including a cyclohexene esterification step and a cyclohexyl ester hydrogenation step. This invention further relates to a process for further producing cyclohexanone or caprolactam, starting from the co-producing process, and an apparatus for co-producing cyclohexanol and alkanol. The process for co-producing cyclohexanol and alkanol of this invention is environment-friendly, with low production cost and highly improved atom economy.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: February 7, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Baoning Zong, Dongqiang Ma, Langyou Wen, Bin Sun, Keyong Yang
  • PROCESS AND APPARATUS FOR CO-PRODUCING CYCLOHEXANOL AND ALKANOL
    Publication number: 20150274620
    Abstract: This invention relates to a process for co-producing cyclohexanol and alkanol, including a cyclohexene esterification step and a cyclohexyl ester hydrogenation step. This invention further relates to a process for further producing cyclohexanone or caprolactam, starting from the co-producing process, and an apparatus for co-producing cyclohexanol and alkanol. The process for co-producing cyclohexanol and alkanol of this invention is environment-friendly, with low production cost and highly improved atom economy.
    Type: Application
    Filed: September 17, 2013
    Publication date: October 1, 2015
    Inventors: Baoning Zong, Dongqiang Ma, Langyou Wen, Bin Sun, Keyong Yang