Patents by Inventor Qingxin GUAN

Qingxin GUAN 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: 20220266234
    Abstract: A highly-dispersed hydrogenation catalyst, a preparation method thereof, and use thereof in the preparation of biofuel from palm oil or other oil are provided. The combination of maleic anhydride-grafted polypropylene (MA-PP) and a silane coupling agent (SCA) is introduced into an aluminum oxide composite carrier through organic amidation to obtain a uniformly-dispersed composite carrier with regular pores. Moreover, through a multi-stage impregnation and roasting process, a particle size of an active component is greatly reduced, and the dispersion of the active component and the number of active sites are improved. A hydrogenation catalyst with high hydrothermal stability, high hydrogenation activity, and long life is prepared based on the composite carrier with regular pores and used in the preparation of biofuel from vegetable oil or other oil through hydrodeoxygenation (HDO), which has great industrial application value.
    Type: Application
    Filed: September 20, 2019
    Publication date: August 25, 2022
    Applicant: NANKAI UNIVERSITY
    Inventors: Wei LI, Siyang LIU, Qingxin GUAN
  • Patent number: 10479944
    Abstract: A hydrodeoxygenation catalyst takes self-made porous large-specific surface nano-alumina as a carrier, takes NixMoW, NixCoW or NixCoMo as an active component, and takes Mn as an assistant. Hydrothermal stability of the catalyst and dispersion of active components may be increased by enlarging a pore channel and a specific surface area of the carrier, thereby prolonging the life of the hydrodeoxygenation catalyst. A hydroisomerization catalyst takes multi-walled carbon nanotube composite hierarchical-pore-channel NiAPO-11 or NiSAPO-11 as a carrier and takes NixMoLa, NixCoLa or NixWLa as an active component. Due to the adding of the carbon nanotubes, the pore channel of the carrier is enriched, and connection between the active components and the carrier is effectively enhanced, thereby prolonging the life of the catalyst on a basis of increasing selectivity of aviation kerosene component. Moreover, the biological aviation kerosene satisfying usage conditions is prepared by virtue of mild reaction conditions.
    Type: Grant
    Filed: November 18, 2017
    Date of Patent: November 19, 2019
    Inventors: Wei Li, SiYang Liu, Qingxin Guan, Bohan Chai, Liangnian He, Feng Ye, Xiaoying Cui
  • Patent number: 10399069
    Abstract: The present invention relates to a hydroisomerization and cracking catalyst for preparing biological aviation kerosene from castor oil as well as a preparation method and an application thereof. The catalyst takes a Al-modified titanium silicate molecular sieve (TS-1) as a carrier, and takes NixW and NixMo as active components, wherein x is the atomic ratio of Ni to W or Ni to Mo, and x=5-10, wherein the mass of the active components accounts for 5-30% of the total mass of the catalyst; the molar ratio of Si:Ti in the Al-modified titanium silicate molecular sieve is 50-100, and the molar ratio of Si:Al is 50-100.
    Type: Grant
    Filed: February 3, 2018
    Date of Patent: September 3, 2019
    Inventors: Wei Li, Baoxia Ni, Qingxin Guan, Liangnian He, Feng Ye, Xiaoying Cui
  • Publication number: 20180169639
    Abstract: The present invention relates to a hydroisomerization and cracking catalyst for preparing biological aviation kerosene from castor oil as well as a preparation method and an application thereof. The catalyst takes a Al-modified titanium silicate molecular sieve (TS-1) as a carrier, and takes NixW and NixMo as active components, wherein x is the atomic ratio of Ni to W or Ni to Mo, and x=5-10, wherein the mass of the active components accounts for 5-30% of the total mass of the catalyst; the molar ratio of Si:Ti in the Al-modified titanium silicate molecular sieve is 50-100, and the molar ratio of Si:Al is 50-100.
    Type: Application
    Filed: February 3, 2018
    Publication date: June 21, 2018
    Inventors: WEI LI, BAOXIA NI, QINGXIN GUAN, LIANGNIAN HE, FENG YE, XIAOYING CUI
  • Publication number: 20180134968
    Abstract: A hydrodeoxygenation catalyst takes self-made porous large-specific surface nano-alumina as a carrier, takes NixMoW, NixCoW or NixCoMo as an active component, and takes Mn as an assistant. Hydrothermal stability of the catalyst and dispersion of active components may be increased by enlarging a pore channel and a specific surface area of the carrier, thereby prolonging the life of the hydrodeoxygenation catalyst. A hydroisomerization catalyst takes multi-walled carbon nanotube composite hierarchical-pore-channel NiAPO-11 or NiSAPO-11 as a carrier and takes NixMoLa, NixCoLa or NixWLa as an active component. Due to the adding of the carbon nanotubes, the pore channel of the carrier is enriched, and connection between the active components and the carrier is effectively enhanced, thereby prolonging the life of the catalyst on a basis of increasing selectivity of aviation kerosene component. Moreover, the biological aviation kerosene satisfying usage conditions is prepared by virtue of mild reaction conditions.
    Type: Application
    Filed: November 18, 2017
    Publication date: May 17, 2018
    Inventors: Wei LI, SiYang LIU, Qingxin GUAN, Bohan CHAI, Liangnian HE, Feng YE, Xiaoying CUI