Patents by Inventor Chunming Xu

Chunming Xu 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: 8633346
    Abstract: The present invention provides process for preparing an alkylate comprising contacting in a reaction zone a hydrocarbon mixture comprising at least an isoparaffin and an olefin with an acidic ionic liquid catalyst under alkylation conditions to obtain an alkylate-comprising effluent, in which process: —solids are formed in the reaction zone; —a solids-comprising effluent comprising hydrocarbons and acidic ionic liquid is withdrawn from the reaction zone; and—at least part of the solids-comprising effluent is treated to remove at least part of the solids to obtain a solids-depleted effluent. The invention further provides a process for treating an acidic ionic liquid comprising at least 0.1 wt % of solids based on the total weight of the acidic ionic liquid, wherein at least part of the solids are removed.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: January 21, 2014
    Assignee: Shell Oil Company
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng, Ana Cecilia Patroni, Peter Anton August Klusener, Albertus Vincentius Petrus Van Den Bosch
  • Publication number: 20130331625
    Abstract: Disclosed is an alkylation process using ionic liquid as catalyst, which process comprises separating halogenated hydrocarbons-rich fraction from the alkylation product by distillation and/or adsorption and reintroducing the separated fraction into the reaction system during the alkylation reaction, wherein the ionic liquid catalyst used in the alkylation reaction has a cation derived from hydrohalide of alkyl amine, hydrohalide of imidazole or hydrohalide of pyridine and an anion derived from one or more metallic compounds. The inventive process effectively utilizes the halogenated hydrocarbons in the alkylation product, prolongs the life of the ionic liquid catalyst, and reduces the halogen content in the alkylate oil.
    Type: Application
    Filed: December 27, 2010
    Publication date: December 12, 2013
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng
  • Patent number: 8569561
    Abstract: The present invention provides a method for revamping an HF or sulphuric acid alkylation unit to an ionic liquid alkylation unit, wherein the HF or sulphuric acid alkylation unit comprise at least: —a reactor unit for contacting catalyst and hydrocarbon reactants; —a separator unit for separating a reactor effluent into a catalyst phase and an alkylate-comprising hydrocarbon phase; —a fractionator unit for fractionating the alkylate-comprising hydrocarbon phase into at least one stream comprising alkylate; and which method includes: —providing one or more cyclone units downstream of the reactor unit to separate at least part of the reactor effluent in a catalyst phase and a alkylate-comprising hydrocarbon phase.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: October 29, 2013
    Assignee: Shell Oil Company
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng, Ana Cecilia Patroni, Peter Anton August Klusener, Albertus Vincentius Petrus Van Den Bosch
  • Patent number: 8552243
    Abstract: The present invention provides a process for preparing an alkylate, comprising: contacting in a reaction zone a hydrocarbon mixture comprising at least isoparaffin and an olefin with an acidic ionic liquid catalyst under alkylation conditions to obtain an alkylate; withdrawing an alkylate-comprising effluent from the reaction zone; separating at least part of the alkylate-comprising effluent into an hydrocarbon-rich phase and an ionic liquid catalyst-rich phase; fractionating part of the hydrocarbon-rich phase into at least an alkylate-comprising product and a isoparaffin-comprising stream; mixing another part of the hydrocarbon-rich phase with an olefin-comprising stream to form the hydrocarbon mixture; and providing the hydrocarbon mixture to the reaction zone.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: October 8, 2013
    Assignee: Shell Oil Company
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng, Ana Cecilia Patroni, Peter Anton August Klusener, Albertus Vincentius Petrus Van Den Bosch
  • Publication number: 20120283500
    Abstract: Disclosed is a method for regenerating and maintaining the activity of an ionic liquid catalyst, which comprises supplying hydrogen halide or halogenated hydrocarbon to the acidic ionic liquid catalyst or alkylation materials during alkylation reaction, wherein said ionic liquid catalyst is used to catalyze alkylation of C4 alkene and alkane. Disclosed is also a method for producing alkylate by alkylation reaction, which comprises supplying hydrogen halide or halogenated hydrocarbon to the acidic ionic liquid catalyst or reaction materials during said alkylation reaction. The method can prolong the service life of the acidic ionic liquid catalyst, does not influence the quality of the alkylate, and has simple operation. The processed amount of materials may be 1000 times more than the used amount of the ionic liquid.
    Type: Application
    Filed: July 15, 2010
    Publication date: November 8, 2012
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng
  • Publication number: 20120178982
    Abstract: The present invention provides a process for preparing an alkylate, comprising: contacting in a reaction zone a hydrocarbon mixture comprising at least isoparaffin and an olefin with an acidic ionic liquid catalyst under alkylation conditions to obtain an alkylate; withdrawing an alkylate-comprising effluent from the reaction zone; separating at least part of the alkylate-comprising effluent into an hydrocarbon-rich phase and an ionic liquid catalyst-rich phase; fractionating part of the hydrocarbon-rich phase into at least an alkylate-comprising product and a isoparaffin-comprising stream; mixing another part of the hydrocarbon-rich phase with an olefin-comprising stream to form the hydrocarbon mixture; and providing the hydrocarbon mixture to the reaction zone.
    Type: Application
    Filed: August 5, 2010
    Publication date: July 12, 2012
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng, Ana Cecilia Patroni, Peter Anton August Klusener, Albertus Vincentius Petrus Van Den Bosch
  • Publication number: 20120172647
    Abstract: The present invention provides process for preparing an alkylate comprising contacting in a reactor a hydrocarbon mixture comprising at least an isoparaffin and an olefin with an acidic ionic liquid catalyst under alkylation conditions to obtain an alkylate, which process further comprises: -withdrawing an alkylate-comprising reactor effluent from the reactor, wherein the reactor effluent comprises an ionic liquid phase and a hydrocarbon phase; -separating at least part the reactor effluent into a hydrocarbon phase effluent and a multiple-phase effluent in a centrifugal separation unit; -fractionating at least part of said hydrocarbon phase effluent into at least a stream comprising alkylate and a stream comprising isoparaffin.
    Type: Application
    Filed: August 6, 2010
    Publication date: July 5, 2012
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng, Ana Cecilia Patroni, Peter Anton August Klusener, Albertus Vincentius Petrus Van Den Bosch
  • Publication number: 20120172646
    Abstract: The present invention provides a method for revamping an HF or sulphuric acid alkylation unit to an ionic liquid alkylation unit, wherein the HF or sulphuric acid alkylation unit comprise at least: -a reactor unit for contacting catalyst and hydrocarbon reactants; -a separator unit for separating a reactor effluent into a catalyst phase and an alkylate-comprising hydrocarbon phase; -a fractionator unit for fractionating the alkylate-comprising hydrocarbon phase into at least one stream comprising alkylate; -a catalyst phase recycle means to recycle at least part of the catalyst phase from the separator unit to the reactor unit; which method includes: -adapting the catalyst phase recycle means by providing a means for acid injection and/or a means for halohydrocarbon injection into the catalyst recycle means. The invention further provides a method for the production of alkylate.
    Type: Application
    Filed: July 9, 2010
    Publication date: July 5, 2012
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng, Ana Cecilia Patroni, Peter Anton August Klusener, Albertus Vincentius Petrus Van Den Bosch
  • Publication number: 20120165590
    Abstract: The present invention provides process for preparing an alkylate comprising contacting in a reaction zone a hydro-carbon mixture comprising at least an isoparaffin and an olefin with an acidic ionic liquid catalyst under alkylation conditions to obtain an alkylate-comprising effluent, in which process: solids are formed in the reaction zone; a solids-comprising effluent comprising hydrocarbons and acidic ionic liquid is withdrawn from the reaction zone; and at least part of the solids-comprising effluent is treated to remove at least part of the solids to obtain a solids-depleted effluent. The invention further provides a process for treating an acidic ionic liquid comprising at least 0.1 wt % of solids based on the total weight of the acidic ionic liquid, wherein at least part of the solids are removed.
    Type: Application
    Filed: August 5, 2010
    Publication date: June 28, 2012
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng, Ana Cecilia Patroni, Peter Anton August Klusener, Albertus Vincentius Patrus Van Den Bosch
  • Publication number: 20120165592
    Abstract: The present invention provides a method for revamping an HF or sulphuric acid alkylation unit to an ionic liquid alkylation unit, wherein the HF or sulphuric acid alkylation unit comprise at least: a reactor unit for contacting catalyst and hydrocarbon reactants; a separator unit for separating a reactor effluent into a catalyst phase and an alkylate-comprising hydrocarbon phase; a fractionator unit for fractionating the alkylate-comprising hydrocarbon phase into at least one stream comprising alkylate; and which method includes: providing a second separator unit suitable for the separation of solids from liquids downstream of the reactor unit suitable to reduce the solids content in at least part of the reactor effluent.
    Type: Application
    Filed: August 5, 2010
    Publication date: June 28, 2012
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng, Ana Cecilia Patroni, Peter Anton August Klusener, Albertus Vincentius Petrus Van Den Bosch
  • Publication number: 20120159759
    Abstract: The present invention provides a method for revamping an HF or sulphuric acid alkylation unit to an ionic liquid alkylation unit, wherein the HF or sulphuric acid alkylation unit comprise at least: a reactor unit for contacting catalyst and hydrocarbon reactants; a separator unit for separating a reactor effluent into a catalyst phase and an alkylate-comprising hydrocarbon phase; a fractionator unit for fractionating the alkylate-comprising hydrocarbon phase into at least one stream comprising alkylate; and which method includes: providing one or more cyclone units downstream of the reactor unit to separate at least part of the reactor effluent in a catalyst phase and a alkylate-comprising hydrocarbon phase.
    Type: Application
    Filed: August 6, 2010
    Publication date: June 28, 2012
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xiang Meng, Ana Cecilia Patroni, Peter Anton Agust Klusener, Albertus Vincentius Petrus Van Den Bosch
  • Publication number: 20120165593
    Abstract: The present invention provides process for preparing an alkylate comprising contacting in a reactor a hydrocarbon mixture comprising at least an isoparaffin and an olefin with an acidic ionic liquid catalyst under alkylation conditions to obtain an alkylate, which process further comprises: —withdrawing an alkylate-comprising reactor effluent from the reactor, wherein the reactor effluent comprises an ionic liquid phase and a hydrocarbon phase; —separating at least part the reactor effluent into an ionic liquid phase effluent and a multiple-phase effluent in a first separation unit; —separating at least part of the multiple-phase effluent into a hydrocarbon phase effluent and another effluent in a second separation unit; and recycling at least part of the ionic liquid phase effluent to the reactor.
    Type: Application
    Filed: August 6, 2010
    Publication date: June 28, 2012
    Inventors: Zhichang Liu, Chunming Xu, Rui Zhang, Xianghai Meng, Ana Cecilia Patroni, Peter Anton August Klusener, Albertus Vincentius Petrus Van Den Bosch
  • Patent number: 7597794
    Abstract: The present invention is a separation method and system in which granulation of coupled post-extraction asphalt residue is used to achieve deep separation of heavy oil. A dispersion solvent is introduced into the asphalt phase after separation by solvent extraction and the asphalt phase undergoes rapid phase change in a gas-solid separator and is dispersed into solid particles while the solvent vaporizes, resulting in low temperature separation of asphalt and solvent with adjustable size of the asphalt particles. The separation method of this invention also includes a three-stage separation of heavy oil feedstock, in which the deasphalted oil phase separated from heavy oil is treated with supercritical solvent and results in the further separation of the resin portion of the deasphalted oil, maximizing the yield and quality of the deasphalted oil.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: October 6, 2009
    Inventors: Suoqi Zhao, Chunming Xu, Ren′an Wang, Zhiming Xu, Xuewen Sun, Keng H. Chung
  • Patent number: 7594995
    Abstract: The present invention provides a catalyst and a process for its preparation and its use in cracking heavy feedstocks. The catalyst comprises one or more zeolites having a controlled silica to alumina ratio and preferably treated with alkali in the presence of a matrix component selected from the group consisting of clays, synthetic matrix other than pillared clay, and mixtures thereof. The catalyst are particularly useful in treating heavy feedstock such as residues from oil sands processing.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: September 29, 2009
    Assignee: State Key Laboratory of Heavy Oil Processing
    Inventors: Baojian Shen, Jinsen Gao, Chunming Xu, Liang Zhao, Xianfeng Li, Pei Wu
  • Publication number: 20090101543
    Abstract: The present invention provides a catalyst and a process for its preparation and its use in cracking heavy feedstocks. The catalyst comprises one or more zeolites having a controlled silica to alumina ratio and preferably treated with alkali in the presence of a matrix component selected from the group consisting of clays, synthetic matrix other than pillared clay, and mixtures thereof. The catalyst are particularly useful in treating heavy feedstock such as residues from oil sands processing.
    Type: Application
    Filed: November 17, 2008
    Publication date: April 23, 2009
    Inventors: Baojian Shen, Jinsen Gao, Chunming Xu, Liang Zhao, Xianfeng Li, Pei Wu
  • Patent number: 7459413
    Abstract: The present invention provides a catalyst and a process for its preparation and its use in cracking heavy feedstocks. The catalyst comprises one or more zeolites having a controlled silica to alumina ratio and preferably treated with alkali in the presence of a matrix component selected from the group consisting of clays, synthetic matrix other than pillared clay, and mixtures thereof. The catalyst are particularly useful in treating heavy feedstock such as residues from oil sands processing.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: December 2, 2008
    Assignee: State Key Laboratory of Heavy Oil Processing
    Inventors: Baojian Shen, Jinsen Gao, Chunming Xu, Liang Zhao, Xianfeng Li, Pei Wu
  • Patent number: 7285698
    Abstract: The present invention pertains to a method for manufacturing alkylate oil using a composite ionic liquid as catalyst. A mixture of isobutane and C4 olefins is used as the raw material, and a composite ionic liquid is used as catalyst to carry out an alkylation reaction. The alkane/olefin ratio in the raw material is higher than 1:1. In the composition of the aforementioned composite ionic liquid catalyst, the cations come from a hydrohalide of an alkyl-containing amine or pyridine, while the anions are composite coordinate anions coming from two or more metal compounds. One of the metal compounds is an aluminum compound, while other metal compounds are compounds of Group IB and Group IIB elements of the Periodic Table and the transition metals. The present invention also provides a design of static mixer reaction apparatus that can realize the aforementioned manufacturing method.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: October 23, 2007
    Assignee: University of Petroleum, Beijing
    Inventors: Zhichang Liu, Chunming Xu, Chongpin Huang
  • Publication number: 20070209969
    Abstract: The present invention provides a catalyst and a process for its preparation and its use in cracking heavy feedstocks. The catalyst comprises one or more zeolites having a controlled silica to alumina ratio and preferably treated with alkali in the presence of a matrix component selected from the group consisting of clays, synthetic matrix other than pillared clay, and mixtures thereof. The catalyst are particularly useful in treating heavy feedstock such as residues from oil sands processing.
    Type: Application
    Filed: February 21, 2007
    Publication date: September 13, 2007
    Inventors: Baojian Shen, Jinsen Gao, Chunming Xu, Liang Zhao, Xianfeng Li, Pei Wu
  • Publication number: 20070007168
    Abstract: The present invention is a separation method and system in which granulation of coupled post-extraction asphalt residue is used to achieve deep separation of heavy oil. A dispersion solvent is introduced into the asphalt phase after separation by solvent extraction and the asphalt phase undergoes rapid phase change in a gas-solid separator and is dispersed into solid particles while the solvent vaporizes, resulting in low temperature separation of asphalt and solvent with adjustable size of the asphalt particles. The separation method of this invention also includes a three-stage separation of heavy oil feedstock, in which the deasphalted oil phase separated from heavy oil is treated with supercritical solvent and results in the further separation of the resin portion of the deasphalted oil, maximizing the yield and quality of the deasphalted oil.
    Type: Application
    Filed: November 1, 2005
    Publication date: January 11, 2007
    Inventors: Suoqi Zhao, Chunming Xu, Ren'an Wang, Zhiming Xu, Xuewen Sun, Keng Chung
  • Publication number: 20040133056
    Abstract: The present invention pertains to a method for manufacturing alkylate oil using a composite ionic liquid as catalyst. A mixture of isobutane and C4 olefins is used as the raw material, and a composite ionic liquid is used as catalyst to carry out an alkylation reaction. The alkane/olefin ratio in the raw material is higher than 1:1. In the composition of the aforementioned composite ionic liquid catalyst, the cations come from a hydrohalide of an alkyl-containing amine or pyridine, while the anions are composite coordinate anions coming from two or more metal compounds. One of the metal compounds is an aluminum compound, while other metal compounds are compounds of Group IB and Group IIB elements of the Periodic Table and the transition metals. The present invention also provides a design of static mixer reaction apparatus that can realize the aforementioned manufacturing method.
    Type: Application
    Filed: November 10, 2003
    Publication date: July 8, 2004
    Inventors: Zhichang Liu, Chunming Xu, Chongpin Huang