Patents by Inventor Tiancun Xiao

Tiancun Xiao 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: 20230131680
    Abstract: A process for producing a gaseous product comprising hydrogen, said process comprising exposing a gaseous hydrocarbon to microwave radiation in the presence of a solid catalyst, wherein the catalyst comprises at least one metal species on a support, wherein the metal species is at least one a nickel species or a cobalt species; and a solid catalyst suitable for use in said process, and wherein the support comprises at least one of a carbonate or an alkaline earth metal oxide.
    Type: Application
    Filed: April 19, 2021
    Publication date: April 27, 2023
    Inventors: Tiancun XIAO, Weisong Li, Peter Edwards, Xiangyu Jie
  • Publication number: 20220298014
    Abstract: The present invention provides a process for producing a gaseous product comprising hydrogen, said process comprising exposing a gaseous hydrocarbon to microwave radiation in the presence of a solid catalyst, wherein the catalyst comprises at least one iron species supported on a support comprising a ceramic material or carbon, or a mixture thereof. Also provided are a heterogeneous mixture comprising a solid catalyst in intimate mixture with a gaseous hydrocarbon wherein the catalyst comprises at least one iron species supported on a support comprising a ceramic material or carbon, or mixture thereof. Also provided are the use of said mixture to produce hydrogen, a microwave reactor comprising said mixture and a a fuel cell module comprising a (i) a fuel cell and (ii) a heterogeneous mixture as described herein, and a vehicle or electronic device comprising said fuel cell module.
    Type: Application
    Filed: July 23, 2019
    Publication date: September 22, 2022
    Inventors: Peter Philip EDWARDS, Tiancun XIAO, Xiangyu JIE
  • Publication number: 20220184586
    Abstract: A catalyst precursor comprising an iron species, an alkali metal or salt thereof and a complexing agent, a catalyst obtainable from said precursor, and a process for the hydrogenation of carbon dioxide and/or carbon monoxide using either said catalyst precursor or said catalyst to yield olefins or fuels, such as jet fuel.
    Type: Application
    Filed: April 1, 2020
    Publication date: June 16, 2022
    Inventors: Benzhen YAO, Peter P. EDWARDS, Tiancun XIAO
  • Publication number: 20210214517
    Abstract: The present invention provides a process for (a) recycling plastic; and/or (b) producing hydrogen; and/or (c) producing syngas; and/or (d) producing carbon nanotubes, wherein the process comprises exposing a solid composition comprising one or more thermoplastic or thermosetting polymers to electromagnetic radiation in the presence of a solid catalyst, wherein the catalyst comprises elemental iron (Fe) or an oxide thereof. Also provided is a solid composition comprising a catalyst in intimate mixture with one or more thermoplastic or thermosetting polymers, wherein the catalyst comprises elemental iron (Fe) or an oxide thereof. Also provided is the use of said solid composition to produce hydrogen, syngas and/or carbon nanotubes, and a microwave reactor comprising said solid composition.
    Type: Application
    Filed: June 4, 2019
    Publication date: July 15, 2021
    Inventors: Tiancun XIAO, Peter P. EDWARDS, Xiangyu JIE
  • Publication number: 20210054294
    Abstract: The present invention relates to a process for upgrading a petroleum product comprising mixing the petroleum product with an upgrading solution to provide a two-phase mixture consisting of an extract phase and a raffinate phase, wherein the upgrading solution comprises a pyrolysis oil and optionally a polar organic solvent. In other aspects, the invention provides an upgrading solution comprising a pyrolysis oil and optionally a polar organic solvent and uses thereof. Furthermore, an upgraded petroleum product and raffinate phase is provided.
    Type: Application
    Filed: May 30, 2017
    Publication date: February 25, 2021
    Inventors: Zhaoxi ZHANG, Tiancun XIAO, Peter P. EDWARDS
  • Patent number: 10927055
    Abstract: The invention provides a modified zeolite, a method of preparing the modified zeolite and a method of one cycle alkylating benzene in presence of one of an unmodified and modified zeolite catalyst. The modified zeolite catalyst includes zeolite with ratio of silica to alumina ranging between 5% to 95% of silica and 95% to 5% alumina, kaolinite and a binder, wherein the zeolite is modified with one or more metal oxides of Lanthanide-series of the Periodic Table. The method of alkylating benzene is one cycle process in presence of a catalyst that includes charging benzene and ethylene gas feedstock to an alkylation zone. Heated benzene and the ethylene gas feedstock are contacted in a fixed bed reactor in the alkylation zone. The catalyst for alkylating benzene is added in a catalyst zone of the fixed bed reactor.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: February 23, 2021
    Assignees: THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD, THE KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventors: Mohammad C. Al-Kinany, Hamid A Almegren, Saud A Aldrees, Eyad Al-Ghilan, Sami Al-Dress, Abdullah Al-Ghamdi, Peter P Edwards, Tiancun Xiao
  • Publication number: 20190070592
    Abstract: A precursor for a Fischer-Tropsch catalyst includes a catalyst support, cobalt or iron on the catalyst support and one or more noble metals on the catalyst support, wherein the cobalt or iron is at least partially in the form of its carbide in the as-prepared catalyst precursor, a method for preparing said precursor and the use of said precursor in a Fischer-Tropsch process.
    Type: Application
    Filed: November 1, 2018
    Publication date: March 7, 2019
    Inventors: Tiancun XIAO, Yangdong QIAN
  • Publication number: 20170233308
    Abstract: The invention provides a modified zeolite, a method of preparing the modified zeolite and a method of one cycle alkylating benzene in presence of one of an unmodified and modified zeolite catalyst. The modified zeolite catalyst includes zeolite with ratio of silica to alumina ranging between 5% to 95% of silica and 95% to 5% alumina, kaolinite and a binder, wherein the zeolite is modified with one or more metal oxides of Lanthanide-series of the Periodic Table. The method of alkylating benzene is one cycle process in presence of a catalyst that includes charging benzene and ethylene gas feedstock to an alkylation zone. Heated benzene and the ethylene gas feedstock are contacted in a fixed bed reactor in the alkylation zone. The catalyst for alkylating benzene is added in a catalyst zone of the fixed bed reactor.
    Type: Application
    Filed: February 17, 2016
    Publication date: August 17, 2017
    Applicants: The King Abdulaziz City for Science and Technology, Inorganic Chemistry Laboratory Oxford University
    Inventors: Mohammad C. Al-Kinany, Hamid A Almegren, Saud A Aldrees, Eyad Al-Ghilan, Sami Al-Dress, Abdullah Al-Ghamdi, Peter P Edwards, Tiancun Xiao
  • Publication number: 20160199820
    Abstract: A precursor for a Fischer-Tropsch catalyst includes a catalyst support, cobalt or iron on the catalyst support and one or more noble metals on the catalyst support, wherein the cobalt or iron is at least partially in the form of its carbide in the as-prepared catalyst precursor, a method for preparing said precursor and the use of said precursor in a Fischer-Tropsch process.
    Type: Application
    Filed: March 23, 2016
    Publication date: July 14, 2016
    Inventors: Tiancun XIAO, Yangdong QIAN
  • Publication number: 20160037811
    Abstract: A fruit and vegetable product for curing oral ulcer, and a preparation method thereof. The fruit and vegetable product is made by mixing the following crude materials of different parts by weight: vegetables and/or fruits of 30-100 parts, food additives of 0-15 parts, probiotics powder of 0-5 parts, and recipients of 0-40 parts, the vegetables and fruits being cool and cold, cool and mild, and cold and mild; and the vegetables or fruits being cool, cold or mild in the theory of traditional Chinese medicine.
    Type: Application
    Filed: September 13, 2013
    Publication date: February 11, 2016
    Inventors: Tiancun Xiao, Renju Chen, Li Li, Pengfei Zhang
  • Patent number: 8663459
    Abstract: Sulfur-containing compounds, including specifically thiophenic compounds, in a liquid hydrocarbon feedstream are catalytically oxidized by combining the hydrocarbon feedstream with a catalytic reaction mixture that includes a peroxide that is soluble in water or in a polar organic acid, at least one carboxylic acid, and a catalyst that is a transition metal salt selected from the group consisting of (NH4)2WO4, (NH4)6W12O40.H2O, Na2WO4, Li2WO4, K2WO4, MgWO4, (NH4)2MoO4, (NH4)6Mo7O24.4H2O, MnO0 and NaVO3; the mixture is vigorously agitated for a time that is sufficient to oxidize the sulfur-containing compounds to form sulfoxides and sulfones; the reaction mixture is allowed to stand and separate into a lower aqueous layer containing the catalyst and an upper hydrocarbon layer that is recovered and from which the oxidized sulfur compounds are removed, as by solvent extraction, distillation or selective adsorption.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: March 4, 2014
    Assignees: Saudi Arabian Oil Company, The Chancellor, Masters and Scholars of the University of Oxford
    Inventors: Farhan M. Al-Shahrani, Tiancun Xiao, Gary Dean Martinie, Malcolm L. H. Green
  • Patent number: 8501999
    Abstract: The process provided herein is concerned with recovery of hydrocarbons from sulfones using an individual alkali and alkaline-earthy base and a mixture of thereof. As the starting materials are sulfones generated by ODS and commercially inexpensive alkali and alkaline-earth bases, the cost and ecological impact of solid waste disposal is minimized.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: August 6, 2013
    Assignees: Saudi Arabian Oil Company, The Chancellor, Masters and Scholars of the University of Oxford
    Inventors: Farhan M. Al-Shahrani, Tiancun Xiao, Huahong Shi, Malcolm L. H. Green
  • Patent number: 8012634
    Abstract: An apparatus including storage means containing methanol and a peroxide, a housing containing a catalyst comprising at least one group 7, 8, 9, 10 or 11 transition metal, and means for introducing the methanol and the peroxide into the housing.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: September 6, 2011
    Assignee: Isis Innovation Limited
    Inventor: Tiancun Xiao
  • Publication number: 20110213187
    Abstract: The process provided herein is concerned with recovery of hydrocarbons from sulfones using an individual alkali and alkaline-earthy base and a mixture of thereof. As the starting materials are sulfones generated by ODS and commercially inexpensive alkali and alkaline-earth bases, the cost and ecological impact of solid waste disposal is minimized.
    Type: Application
    Filed: November 4, 2010
    Publication date: September 1, 2011
    Inventors: Farhan M. Al-Shahrani, Tiancun Xiao, Huahong Shi, Malcolm L.H. Green
  • Publication number: 20100282236
    Abstract: The present invention relates to an apparatus, in some embodiments a hand-held apparatus, and a method for the production of steam through contacting reactants and a catalyst.
    Type: Application
    Filed: July 25, 2008
    Publication date: November 11, 2010
    Inventors: Tiancun Xiao, David Wardle, Yangdong Qian, Franck Letellier
  • Patent number: 7829052
    Abstract: A process for initiating a reaction between methanol and a peroxide to produce a gas, which comprises contacting methanol and peroxide in the liquid phase and at a pressure equal to, below or above atmospheric pressure in the presence of a catalyst comprising at least one group 7, 8, 9, 10 or 11 transition metal.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: November 9, 2010
    Assignee: Isis Innovation Limited
    Inventor: Tiancun Xiao
  • Publication number: 20100227232
    Abstract: A process for initiating a reaction between hydrogen peroxide and an organic compound which comprises contacting the hydrogen peroxide and the organic compound in the liquid phase in the presence of a catalyst; wherein: a) the organic compound is an alcohol, carbohydrate, aldehyde, ketone, carboxylic acid or ether; b) the catalyst comprises at least one group 7, 8, 9, 10 or 11 transition metal; c) the ratio of H2O2:atomic carbon in the organic compound is from 0.2:1 to 6:1; and d) the ratio of any water present:atomic carbon in the organic compound is from 0:1 to 2:1; with the proviso that the organic compound is not or does not comprise methanol.
    Type: Application
    Filed: July 28, 2006
    Publication date: September 9, 2010
    Inventor: Tiancun Xiao
  • Publication number: 20100168259
    Abstract: The present invention is directed towards a precursor for a Fischer-Tropsch catalyst comprising a catalyst support, cobalt or iron on the catalyst support and one or more noble metals on the catalyst support, wherein the cobalt or iron is at least partially in the form of its carbide in the as-prepared catalyst precursor, a method for preparing said precursor and the use of said precursor in a Fischer-Tropsch process.
    Type: Application
    Filed: February 29, 2008
    Publication date: July 1, 2010
    Inventors: Tiancun Xiao, Yangdong Qian
  • Publication number: 20090200206
    Abstract: Sulfur-containing compounds, including specifically thiophenic compounds, in a liquid hydrocarbon feedstream are catalytically oxidized by combining the hydrocarbon feedstream with a catalytic reaction mixture that includes a peroxide that is soluble in water or in a polar organic acid, at least one carboxylic acid, and a catalyst that is a transition metal salt selected from the group consisting of (NH4)2WO4, (NH4)6W12O40.H2O, Na2WO4, Li2WO4, K2WO4, MgWO4, (NH4)2MoO4, (NH4)6Mo7O24.4H2O, MnO0 and NaVO3; the mixture is vigorously agitated for a time that is sufficient to oxidize the sulfur-containing compounds to form sulfoxides and sulfones; the reaction mixture is allowed to stand and separate into a lower aqueous layer containing the catalyst and an upper hydrocarbon layer that is recovered and from which the oxidized sulfur compounds are removed, as by solvent extraction, distillation or selective adsorption.
    Type: Application
    Filed: March 5, 2007
    Publication date: August 13, 2009
    Inventors: Farhan M. Al-Shahrani, Tiancun Xiao, Gary D. Martinie, Malcolm L.H. Green
  • Patent number: 7511080
    Abstract: A process for the preparation of a catalyst which comprises activating a catalyst precursor comprising a cobalt compound and a support with a gas comprising at least 5 mol % of a hydrocarbon.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: March 31, 2009
    Assignee: Isis Innovation Limited
    Inventors: Malcolm Leslie Hodder Green, Tiancun Xiao