Patents by Inventor Xuefen Liu

Xuefen Liu 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).

  • Patent number: 11161105
    Abstract: The present application relates to a hydrogenation catalyst, a process for producing the same and application thereof in the hydrotreatment of feedstock oil. The process comprises at least the following steps: (1) contacting a first active metal component and a first organic complexing agent with a carrier to obtain a composite carrier; (2) calcining the composite carrier to obtain a calcined composite carrier having a total carbon content of 1% by weight or less; and (3) contacting a second organic complexing agent with the calcined composite carrier to obtain the hydrogenation catalyst. The hydrogenation catalyst has both excellent hydrodesulfurization activity and hydrodenitrogenation activity, and exhibits a significantly prolonged service life.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: November 2, 2021
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Le Zhang, Mingfeng Li, Huifeng Li, Hong Nie, Shi Ding, Xuefen Liu, Zhihai Hu
  • Publication number: 20190232269
    Abstract: The present application relates to a hydrogenation catalyst, a process for producing the same and application thereof in the hydrotreatment of feedstock oil. The process comprises at least the following steps: (1) contacting a first active metal component and a first organic complexing agent with a carrier to obtain a composite carrier; (2) calcining the composite carrier to obtain a calcined composite carrier having a total carbon content of 1% by weight or less; and (3) contacting a second organic complexing agent with the calcined composite carrier to obtain the hydrogenation catalyst. The hydrogenation catalyst has both excellent hydrodesulfurization activity and hydrodenitrogenation activity, and exhibits a significantly prolonged service life.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 1, 2019
    Inventors: Le ZHANG, Mingfeng LI, Huifeng LI, Hong NIE, Shi DING, Xuefen LIU, Zhihai HU
  • Patent number: 9657236
    Abstract: The present invention relates to a catalyst combination for hydrotreating raw oils and a process for hydrotreating raw oils with the catalyst combination. The catalyst combination comprises one or both of at least one hydrogenation protection catalyst I and at least one hydrogenation demetalling catalyst I; at least one hydrogenation demetalling catalyst II; and at least one hydrogenation treatment catalyst III.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: May 23, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PERTROLEUM PROCESSING, SINOPEC
    Inventors: Qinghe Yang, Dawei Hu, Shuling Sun, Jia Liu, Hong Nie, Xinqiang Zhao, Xuefen Liu, Dadong Li, Lishun Dai, Zhicai Shao, Tao Liu
  • Patent number: 8697598
    Abstract: The present invention provides a hydrogenation catalyst, containing a carrier, metal components of nickel, molybdenum and tungsten supported thereon, and an adjuvant component selected from the group consisting of fluorine and phosphor and combination thereof. In another embodiment, the present invention provides a hydrogenation catalyst, containing a carrier and metal components of nickel, molybdenum and tungsten supported thereon, wherein said carrier contains a molecular sieve. The present invention provides further use of said catalyst in the process for hydrogenating hydrocarbon oil. In comparison with a hydrogenation catalyst according to the prior art, the catalyst according to the present invention has a much higher activity.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: April 15, 2014
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, SINOPEC
    Inventors: Xiangyun Long, Xuefen Liu, Hong Nie, Kui Wang, Jing Xin, Qinghe Liu, Xiaodong Gao, Zhihai Hu, Yahua Shi, Dadong Li
  • Publication number: 20140001090
    Abstract: The present invention relates to a catalyst combination for hydrotreating raw oils and a process for hydrotreating raw oils with the catalyst combination. The catalyst combination comprises one or both of at least one hydrogenation protection catalyst I and at least one hydrogenation demetalling catalyst I; at least one hydrogenation demetalling catalyst II; and at least one hydrogenation treatment catalyst III.
    Type: Application
    Filed: March 29, 2013
    Publication date: January 2, 2014
    Applicants: RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Qinghe YANG, Dawei Hu, Shuling Sun, Jia Liu, Hong Nie, Xinqiang Zhao, Xuefen Liu, Dadong Li, Lishun Dai, Zhicai Shao, Tao Liu
  • Publication number: 20090139898
    Abstract: The present invention provides a hydrogenation catalyst, containing a carrier, metal components of nickel, molybdenum and tungsten supported thereon, and an adjuvant component selected from the group consisting of fluorine and phosphor and combination thereof. In another embodiment, the present invention provides a hydrogenation catalyst, containing a carrier and metal components of nickel, molybdenum and tungsten supported thereon, wherein said carrier contains a molecular sieve. The present invention provides further use of said catalyst in the process for hydrogenating hydrocarbon oil. In comparison with a hydrogenation catalyst according to the prior art, the catalyst according to the present invention has a much higher activity.
    Type: Application
    Filed: April 20, 2006
    Publication date: June 4, 2009
    Inventors: Xiangyun Long, Xuefen Liu, Hong Nie, Kui Wang, Jing Xin, Qinghe Liu, Xiaodong Gao, Zhihai Hu, Yahua Shi, Dadong Li
  • Patent number: 6518219
    Abstract: A catalyst for hydrofining fraction oils, comprises an alumina carrier and at least one metal and/or thereof oxide of Group VIB and at least one metal and/or thereof oxide of Group VIII supported on said alumina carrier. The pore volume of said alumina carrier is not less than 0.35 ml/g, in which the pore volume of the pores having a diameter of 40-100 angstrom accounts for more than 80% of the total pore volume, the alumina carrier is prepared by a special process. The catalyst possesses relatively high hydrogenation activity.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: February 11, 2003
    Assignees: China Petrochemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Qinghe Yang, Bin Liu, Hong Nie, Xuefen Liu, Dadong Li, Yahua Shi, Fucheng Zhuang
  • Patent number: 5914290
    Abstract: The present invention discloses a hydrofining catalyst. The catalyst has the following composition based on the total weight of the entire catalyst composition: 1-5%(wt.) nickel oxide, 12-35% (wt.) tungsten oxide, 1-9% (wt.) fluorine, and the balancing amount of composite alumina. Said composite alumina is composed of one or several kinds of micropore alumina and one or several kinds of macropore alumina, wherein the weight ratio of micropore alumina to macropore alumina is 75:25 to 50:50. The term "micropore alumina" in the context means the alumina in which the volume of the proe of diameter less than 80 angstrom occupies more than 95% of its total pore volume, while the term "macropore alumina" in the contest means the alumina in which the volume of the pore of diameter 60-600 angstrom occupies more than 70% of its total pore volume. The pore distribution mentioned above is determined by BET method of nitrogen adsorption at low temperature.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: June 22, 1999
    Assignees: China Petrochemical Corporation, Research Institute of Petroleum
    Inventors: Yahua Shi, Dadong Li, Xuefen Liu, Hong Nie, Xiaodong Gao, Yibing Ying