Patents by Inventor Xiulian Pan

Xiulian Pan 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: 10532961
    Abstract: The present invention discloses catalyst and method for producing light olefins directly from synthesis gas by a one-step process, and particularly relates to method and catalyst for directly converting synthesis gas into light olefins by a one-step process. The provided catalysts are composite materials formed of multicomponent metal oxide composites and inorganic solid acids with hierarchical pore structures. The inorganic solid acids have a hierarchical pore structure having micropores, mesopores and macropores. The metal composites can be mixed with or dispersed on surfaces or in pore channels of the inorganic solid acid and can catalyze the synthesis gas conversion to a C2-C4 light hydrocarbon product containing two to four carbon atoms. The single pass conversion of CO is 10%-60%. The selectivity of light hydrocarbon in all hydrocarbon products can be up to 60%-95%, wherein the selectivity of light olefins (C2?—C4?) is 50%-85%.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: January 14, 2020
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Xiulian Pan, Jinjing Li, Feng Jiao, Xinhe Bao
  • Publication number: 20190300375
    Abstract: A process for preparing a zeolitic material containing YO2 and X2O3, where Y and X represent a tetravalent element and a trivalent element, respectively, is described. The process includes (1) a step of preparing a mixture containing one or more structure directing agents, seed crystals, and a first zeolitic material containing YO2 and X2O3 and having FAU-, GIS-, MOR-, and/or LTA-type framework structures; and (2) a step of heating the mixture for obtaining a second zeolitic material containing YO2 and X2O3 and having a different framework structure than the first zeolitic material. The mixture prepared in (1) and heated in (2) contains 1000 wt % or less of H2O based on 100 wt % of YO2 in the framework structure of the first zeolitic material. A zeolitic material obtainable and/or obtained by the process and its use are also described.
    Type: Application
    Filed: December 13, 2017
    Publication date: October 3, 2019
    Applicant: BASF SE
    Inventors: Robert MCGUIRE, Mathias FEYEN, Ulrich MUELLER, Xinhe BAO, Weiping ZHANG, Dirk DE VOS, Hermann GIES, Feng-Shou XIAO, Toshiyuki YOKOI, Ute KOLB, Bernd MARLER, Chuan SHI, Xiulian PAN, Xiangju MENG, Stefan MAURER, Yu DAI, Yong WANG, Trees DE BAERDEMAEKER
  • Publication number: 20190275505
    Abstract: Direct conversion of syngas to light olefins is carried out in a fixed bed or a moving bed reactor with a composite catalyst A+B. The active ingredient of catalyst A is active metal oxide; and catalyst B is one or more than one of zeolite of CHA and AEI structures or metal modified CHA and/or AEI zeolite. A spacing between geometric centers of the active metal oxide of the catalyst A and the particle of the catalyst B is 5 ?m-40 mm. A spacing between axes of the particles is preferably 100 ?m-5 mm, and more preferably 200 ?m-4 mm. A weight ratio of the active ingredients in the catalyst A and the catalyst B is within a range of 0.1-20 times, and preferably 0.3-5.
    Type: Application
    Filed: December 4, 2017
    Publication date: September 12, 2019
    Inventors: Xinhe BAO, Feng JIAO, Xiulian PAN, Minzheng DING
  • Publication number: 20190143288
    Abstract: A reactor configuration comprises an inlet section I, a preheating section II, a transition section III, a reaction section IV and an outlet section V; except for the preheating section II and the reaction section IV, the existence of the inlet section I, the transition section III and the outlet section V depends on reaction conditions; and the process realizes no coke deposition synthesis of methane and high selectivity synthesis of ethylene. The methane conversion rate is 20-90%; ethylene selectivity is 65-95%; propylene and butylene selectivity is 5-25%; aromatic hydrocarbon selectivity is 0-30%; and coke deposition is zero.
    Type: Application
    Filed: March 22, 2017
    Publication date: May 16, 2019
    Inventors: Xinhe BAO, Xiaoguang GUO, Guangzong FANG, Xiulian PAN, Jingheng MENG, Qinqin YU, Dali TAN
  • Publication number: 20190031575
    Abstract: Synthesis of aromatic hydrocarbons from synthesis gas in a fixed bed or a moving bed reactor loaded with a composite catalyst comprising Catalyst Component A and Catalyst Component B mixed via a mechanical mixing mode, wherein the active ingredient of the Catalyst Component A is active metal oxides; and the Catalyst Component B is one or both of ZSM-5 zeolite and metal modified ZSM-5; the pressure of the synthesis gas is 0.1-6 MPa; the reaction temperature is 300-600° C.; and the space velocity is 500-8000 h?1. The reaction process has a high product yield and selectivity, with the selectivity of aromatics reaching 50-85%, while the selectivity of the methane byproduct is less than 15%.
    Type: Application
    Filed: July 12, 2016
    Publication date: January 31, 2019
    Inventors: Xiulian PAN, Junhao YANG, Feng JIAO, Yifeng ZHU, Xinhe BAO
  • Publication number: 20180194700
    Abstract: The present invention discloses catalyst and method for producing light olefins directly from synthesis gas by a one-step process, and particularly relates to method and catalyst for directly converting synthesis gas into light olefins by a one-step process. The provided catalysts are composite materials formed of multicomponent metal oxide composites and inorganic solid acids with hierarchical pore structures. The inorganic solid acids have a hierarchical pore structure having micropores, mesopores and macropores. The metal composites can be mixed with or dispersed on surfaces or in pore channels of the inorganic solid acid and can catalyze the synthesis gas conversion to a C2-C4 light hydrocarbon product containing two to four carbon atoms. The single pass conversion of CO is 10%-60%. The selectivity of light hydrocarbon in all hydrocarbon products can be up to 60%-95%, wherein the selectivity of light olefins (C2?-C4?) is 50%-85%.
    Type: Application
    Filed: October 16, 2015
    Publication date: July 12, 2018
    Inventors: Xiulian PAN, Jinjing LI, Feng JIAO, Xinhe BAO
  • Publication number: 20100234477
    Abstract: A catalyst and process is described for the conversion of hydrogen and one or more oxides of carbon in which the catalyst comprises an elemental carbon-containing support. Also described is a process for reducing agglomeration in carbon nanotubes, in which carbon nanotubes are suspended in a liquid and simultaneously treated by ultrasound and agitation. The method can be used to prepare carbon nanotube-supported catalysts that show high activity towards the conversion of feedstocks comprising hydrogen and one or more oxides of carbon.
    Type: Application
    Filed: February 16, 2006
    Publication date: September 16, 2010
    Applicant: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian China BP P.L.C.
    Inventors: Xinhe Bao, Wei Chen, Xiulian Pan, Zhongli Fan, Yunjie Ding, Hongyuan Luo
  • Publication number: 20090203944
    Abstract: A catalyst for the oxidation of an alkane to an oxygenated hydrocarbon in the presence of oxygen as a first oxidant, comprising a redox active metal centre that can be present in an oxidised and in a reduced form, an acid, a second oxidant for oxidising the reduced form of the redox active metal centre, and a source of nitrous oxide.
    Type: Application
    Filed: June 28, 2007
    Publication date: August 13, 2009
    Inventors: Zengjian An, Xinhe Bao, Xiuwen Han, Xiumei Liu, Xiulian Pan
  • Patent number: 6964697
    Abstract: A metal solution-diffusion membrane of a macroporous base on which a thin metal membrane layer is formed is disclosed. In the membrane, the base includes a hollow fiber with a metal material containing an intermediate layer being formed between the hollow fiber and the metal membrane layer. The metal solution-diffusion membrane can be made with a very thin metal membrane layer with high permeability and possesses long-term stability as well as a great separation surface/volume ratio. A method for producing a metal solution-diffusion membrane in which the intermediate layer serves to provide nuclei for the subsequent currentless deposition of the metal layer is also disclosed.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: November 15, 2005
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Xiulian Pan, Norbert Stroh, Herwig Brunner
  • Publication number: 20050011359
    Abstract: The present invention relates to a metal solution-diffusion membrane of a macroporous base on which a thin metal membrane layer (3) is formed. In the present membrane, the base comprises a hollow fiber (1) with a metal material containing an intermediate layer (2) being formed between the hollow fiber (1) and the metal membrane layer (3). The invention further relates to a method for producing such a metal solution-diffusion membrane in which the intermediate layer (2) serves to provide nuclei for the subsequent currentless deposition of the metal layer (3). The present metal solution-diffusion membrane can be realized with a very thin metal membrane layer with high permeability and possesses great long-term stability as well as a great separation surface/volume ratio.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 20, 2005
    Inventors: Xiulian Pan, Norbert Stroh, Herwig Brunner