Patents by Inventor Xiaoliang Gao

Xiaoliang Gao 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).

  • Catalyst for ethane ODH
    Patent number: 10576461
    Abstract: A catalyst for oxidative dehydrogenation (ODH) of ethane with an empirical formula Mo—V—Te—Nb—Pd—O produced using a process comprising impregnation of the Pd component on the surface of the catalyst following a calcination step using a Pd compound free of halogens. The resulting catalyst can be used in both diluted and undiluted ODH processes and shows higher than expected activity without any loss of selectivity.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: March 3, 2020
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Jeffrey Sullivan, Leonid Modestovich Kustov, Aleksey Victorovich Kucherov, Elena Dmitrievna Finashina
  • OXIDATIVE DEHYDROGENATION CATALYSTS
    Publication number: 20200038847
    Abstract: Provided in this disclosure are oxidative dehydrogenation catalysts that include a mixed metal oxide having the empirical formula: Mo1.0V0.12-0.49Te0.05-0.17Nb0.10-0.20Od wherein d is a number to satisfy the valence of the oxide. The oxidative dehydrogenation catalyst is characterized by having XRD diffraction peaks (2? degrees) at 22±0.2, 27±0.2, 28.0±0.2, and 28.3±0.1. The disclosure also provides methods of making the catalysts that include wet ball milling.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 6, 2020
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, Marie Barnes, David Sullivan, Yoonhee Kim, Perry de Wit
  • OXIDATIVE DEHYDROGENATION CATALYST COMPOSITIONS
    Publication number: 20200038843
    Abstract: Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula: Mo1.0V0.12-0.49Te0.05-0.17Nb0.10-0.20AlcOd wherein c is from 0 to 2.0 and d is a number to satisfy the valence of the oxide. The compositions are at least 40 wt. % amorphous as measured by XRD. The disclosure also provides methods of making the compositions.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 6, 2020
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, Marie Barnes, David Sullivan, Yoonhee Kim
  • CATALYSTS FOR THE OXIDATIVE DEHYDROGENATION OF ALKANES
    Publication number: 20200024215
    Abstract: This document relates to oxidative dehydrogenation catalysts that include molybdenum, vanadium, and oxygen.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 23, 2020
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Xiaoliang Gao, Marie Barnes, Vasily Simanzhenkov, Elena Sebastiao, David Sullivan, Yoonhee Kim
  • REMOVING AND CLEANING DEHYDROGENATION CATALYSTS
    Publication number: 20190381483
    Abstract: Oxidative dehydrogenation catalysts including mixed oxides of Mo, V, Nb, Te, and optionally a promoter may be dissolved in aqueous solutions of oxalic acid. This permits the removal of catalyst and catalyst residues from reactors for the oxidative dehydrogenation of paraffins and particularly ethane.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 19, 2019
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Xiaoliang Gao, Vasily Simanzhenkov, Shahin Goodarznia, Marie Barnes, David Sullivan
  • DOUBLE PEROXIDE TREATMENT OF OXIDATIVE DEHYDROGENATION CATALYST
    Publication number: 20190381492
    Abstract: Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining and treating the resulting catalyst with the equivalent amount of peroxide after calcining.
    Type: Application
    Filed: July 31, 2019
    Publication date: December 19, 2019
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Jeffrey Sullivan, Hanna Drag, Marie Barnes
  • CALCINATION PROCESS TO PRODUCE ENHANCED ODH CATALYST
    Publication number: 20190291080
    Abstract: Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Sullivan, Yipei Styles, Yoonhee Kim, Hanna Drag, Marie Barnes
  • OXIDATIVE DEHYDROGENATION CATALYST
    Publication number: 20190275502
    Abstract: Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Jeffrey Sullivan, Hanna Drag, Leonid Modestovich Kustov, Aleksey Victorovich Kucherov, Elena Dmitrievna Finashina
  • Double peroxide treatment of oxidative dehydrogenation catalyst
    Patent number: 10406517
    Abstract: Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining and treating the resulting catalyst with the equivalent amount of peroxide after calcining.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: September 10, 2019
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Jeffrey Sullivan, Hanna Drag, Marie Barnes
  • METHOD FOR IN SITU HIGH ACTIVITY ODH CATALYST
    Publication number: 20190240647
    Abstract: A process for preparing an oxidative dehydrogenation catalyst or oxidative dehydrogenation catalyst precursor that includes mixing solutions of molybdenum and tellurium at a pH from about 3.3 to 7.5; adjusting the pH of the resulting solution back to about 5 and adding VOSO4 and adding a solution of Nb2O5 and oxalic acid and treating the resulting precursor slurry in a controlled pressure hydrothermal process to obtain the catalyst.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 8, 2019
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Xiaoliang Gao, Vasily Simanzhenkov, Marie Barnes, David Sullivan, Hanna Drag, Yoonhee Kim, Perry de Wit
  • Complex comprising oxidative dehydrogenation unit
    Patent number: 10357754
    Abstract: Oxidative dehydrogenation of paraffins to olefins provides a lower energy route to produce olefins. Oxidative dehydrogenation processes may be integrated with a number of processes in a chemical plant such as polymerization processes, manufacture of glycols, and carboxylic acids and esters. Additionally, oxidative dehydrogenation processes can be integrated with the back end separation process of a conventional steam cracker to increase capacity at reduced cost.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: July 23, 2019
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Leonid Modestovich Kustov, Aleksey Victorovich Kucherov, Elena Dmitrievna Finashina, Xiaoliang Gao, Edward Christopher Foy, Claire Jeannine Ennis
  • Oxidative dehydrogenation catalyst
    Patent number: 10350582
    Abstract: Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 16, 2019
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Jeffrey Sullivan, Hanna Drag, Leonid Modestovich Kustov, Aleksey Victorovich Kucherov, Elena Dmitrievna Finashina
  • AGGLOMERATED ODH CATALYST
    Publication number: 20190039053
    Abstract: Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports chosen from slurries of TiO2, ZrO2 Al2O3, AlO(OH) and mixtures thereof have a lower temperature at which 25% conversion is obtained.
    Type: Application
    Filed: July 20, 2018
    Publication date: February 7, 2019
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Yoonhee Kim, Vasily Simanzhenkov, Xiaoliang Gao, David Sullivan, Marie Annette Barnes, Renee Laurel Anseeuw, Yipei Styles
  • AGGLOMERATED ODH CATALYST
    Publication number: 20190039050
    Abstract: Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports comprising slurries of Nb2O5.
    Type: Application
    Filed: July 20, 2018
    Publication date: February 7, 2019
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Xiaoliang Gao, Marie Annette Barnes, Yoonhee Kim, Vasily Simanzhenkov, David Sullivan, Renee Laurel Anseeuw, Yipei Styles
  • COMPLEX COMPRISING OXIDATIVE DEHYDROGENATION UNIT
    Publication number: 20180236432
    Abstract: Oxidative dehydrogenation of paraffins to olefins provides a lower energy route to produce olefins. Oxidative dehydrogenation processes may be integrated with a number of processes in a chemical plant such as polymerization processes, manufacture of glycols, and carboxylic acids and esters. Additionally, oxidative dehydrogenation processes can be integrated with the back end separation process of a conventional steam cracker to increase capacity at reduced cost.
    Type: Application
    Filed: April 26, 2018
    Publication date: August 23, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Leonid Modestovich Kustov, Aleksey Victorovich Kucherov, Elena Dmitrievna Finashina, Xiaoliang Gao, Edward Christopher Foy, Claire Jeannine Ennis
  • DOUBLE PEROXIDE TREATMENT OF OXIDATIVE DEHYDROGENATION CATALYST
    Publication number: 20180193827
    Abstract: Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining and treating the resulting catalyst with the equivalent amount of peroxide after calcining.
    Type: Application
    Filed: December 13, 2017
    Publication date: July 12, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Jeffrey Sullivan, Hanna Drag, Marie Barnes
  • Complex comprising oxidative dehydrogenation unit
    Patent number: 9993798
    Abstract: Oxidative dehydrogenation of paraffins to olefins provides a lower energy route to produce olefins. Oxidative dehydrogenation processes may be integrated with a number of processes in a chemical plant such as polymerization processes, manufacture of glycols, and carboxylic acids and esters. Additionally, oxidative dehydrogenation processes can be integrated with the back end separation process of a conventional steam cracker to increase capacity at reduced cost.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: June 12, 2018
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Leonid Modestovich Kustov, Aleksey Victorovich Kucherov, Elena Dmitrievna Finashina, Xiaoliang Gao, Edward Christopher Foy, Claire Jeannine Ennis
  • LOW PRESSURE GAS RELEASE HYDROTHERMAL AND PEROXIDE TREATMENT OF ODH CATALYST
    Publication number: 20180104675
    Abstract: The preparation of an oxidative dehydrogenation catalyst comprising Mo, V, Nb and Te using a hydrothermal step. In some embodiments, the activity and reproducibility of the catalyst is improved by conducting the hydrothermal step while permitting gaseous products to leave the reactor. In some instances a condenser may be upstream of the outlet of the reactor.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 19, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Jeffrey Sullivan
  • CONTROLLED PRESSURE HYDROTHERMAL TREATMENT OF ODH CATALYST
    Publication number: 20180021760
    Abstract: The preparation of an oxidative dehydrogenation catalyst comprising Mo, V, Nb and Te using a hydrothermal step the activity and reproducibility of the catalyst is improved by conduction the hydrothermal step at higher pressures while permitting gaseous products to leave the reactor. In some instances a condenser may be upstream of the pressure relief valve.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 25, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Jeffrey Sullivan, Hanna Drag, Marie Annette Barnes
  • CATALYST FOR ETHANE ODH
    Publication number: 20170361309
    Abstract: A catalyst for oxidative dehydrogenation (ODH) of ethane with an empirical formula Mo—V—Te—Nb—Pd—O produced using a process comprising impregnation of the Pd component on the surface of the catalyst following a calcination step using a Pd compound free of halogens. The resulting catalyst can be used in both diluted and undiluted ODH processes and shows higher than expected activity without any loss of selectivity.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 21, 2017
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Jeffrey Sullivan, Leonid Modestovich Kustov, Aleksey Victorovich Kucherov, Elena Dmitrievna Finashina