Patents by Inventor Shujuan LUO

Shujuan LUO 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).

  • MALEIC ANHYDRIDE HYDROGENATION PROCESS AND SUCCINIC ACID PRODUCTION PROCESS COMPRISING THE SAME
    Publication number: 20250042867
    Abstract: The present invention relates to a process for producing succinic anhydride by maleic anhydride hydrogenation, comprising (1) feeding a maleic anhydride solution and a hydrogen raw material respectively to a first-stage hydrogenation reactor from an upper liquid-phase feed port and a top gas-phase feed port of the first-stage hydrogenation reactor for a first-stage hydrogenation reaction to obtain a first-stage hydrogenation product; (2) feeding the first-stage hydrogenation product to a second-stage hydrogenation reactor for a second-stage hydrogenation reaction to obtain a second-stage hydrogenation product, optionally, before entering the second-stage hydrogenation reactor, subjecting the first-stage hydrogenation product to a first-stage gas-liquid separation to obtain a first-stage gas phase and a first-stage liquid phase, and then feeding the first-stage gas phase and the first-stage liquid phase respectively from a top gas-phase feed port and an upper liquid-phase feed port of the second-stage hydrogen
    Type: Application
    Filed: October 21, 2022
    Publication date: February 6, 2025
    Inventors: Changjiang WU, Guoqing WANG, Dongfeng LI, Liang GUO, Lijun ZHANG, Yan LI, Hui PENG, Shujuan LUO, Jun TIAN, Huimin SHI, Yuehui ZHU, Dongshun ZHANG, Jieming YE, Chunfang LI, Shuliang LU, Yang XU, Qian SHI
  • METHOD FOR SELECTIVE HYDROGENATION OF BUTADIENE EXTRACTION TAIL GAS AND SELECTIVE HYDROGENATION APPARATUS THEREOF
    Publication number: 20240076559
    Abstract: The present invention belongs to the field of petrochemical industry, and discloses a method for selective hydrogenation of butadiene extraction tail gas and a selective hydrogenation apparatus thereof.
    Type: Application
    Filed: October 19, 2021
    Publication date: March 7, 2024
    Inventors: Yan LI, Jun TIAN, Dongfeng LI, Liang GUO, Chunfang LI, Yi YUE, Zhou DU, Zhan SHU, Shujuan LUO, Jieming YE, Ting CUI
  • Method and system for separating light hydrocarbons
    Patent number: 11649406
    Abstract: A method and system for separating light hydrocarbons are disclosed, wherein the method comprises compression, cooling, absorption, desorption, rectification, cracking, and recycling cracked gas to the compression step.
    Type: Grant
    Filed: September 29, 2019
    Date of Patent: May 16, 2023
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Shujuan Luo, Dongfeng Li, Mingsen Zhang, Lihua Liao, Yan Li, Zhixin Liu, Chunfang Li, Jun Tian
  • METHOD AND SYSTEM FOR SEPARATING LIGHT HYDROCARBONS
    Publication number: 20210348071
    Abstract: A method and system for separating light hydrocarbons are disclosed, wherein the method comprises compression, cooling, absorption, desorption, rectification, cracking, and recycling cracked gas to the compression step.
    Type: Application
    Filed: September 29, 2019
    Publication date: November 11, 2021
    Inventors: Shujuan LUO, Dongfeng Li, Mingsen ZHANG, Lihua LIAO, Yan LI, Zhixin LIU, Chunfang LI, Jun TIAN