Patents by Inventor Hye Kyung Cho Timken

Hye Kyung Cho Timken 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: 9216393
    Abstract: We provide a process and apparatus for preparing a used ionic liquid catalyst for safe disposal, comprising hydrolyzing the used ionic liquid catalyst comprising an anhydrous metal halide with a basic solution at a temperature from ?20° C. to 90° C. to produce a hydrolyzed product, evolve a hydrogen halide gas, and dissolve the hydrogen halide gas into the basic solution.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: December 22, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Shawn Stephen Healy, Shawn Shlomo Winter
  • Publication number: 20150133711
    Abstract: Disclosed are systems and methods which provide a process stream comprising a gaseous component, capture the gaseous component from the process stream by an ionic liquid solvent of a separator, and recover a captured gaseous component from the ionic liquid solvent in a regenerator. A second gaseous component from the process stream may be captured by the ionic liquid solvent of the separator, and the second gaseous component may be recovered from the ionic liquid solvent in the regenerator. Alternatively, the second gaseous component from the process stream may be uncaptured by the ionic liquid solvent, and the uncaptured second gaseous component may be recovered from a membrane unit.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 14, 2015
    Inventors: Lei JI, Ai-Fu CHANG, Michael Sean Driver, Hye-Kyung Cho Timken
  • Patent number: 8987159
    Abstract: We provide an extracted conjunct polymer naphtha (45), comprising a hydrogenated conjunct polymer naphtha, from a used ionic liquid catalyst, having a final boiling point less than 246° C. (475° F.), a Bromine Number of 5 or less, and at least 30 wt % naphthenes. We also provide a blended alkylate gasoline (97) comprising the extracted conjunct polymer naphtha (45), and integrated alkylation processes to make the extracted conjunct polymer naphtha (45) and the blended alkylate gasoline (97). We also provide a method to analyze alkylate products, by determining an amount of methylcyclohexane in the alkylate products (80).
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: March 24, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Izadyar Dalvand, Douglas Robert Cyr, Michael Tung-hai Cheng, Huping Luo, Shawn Shlomo Winter, Michael Sean Driver, Donald Henry Mohr
  • Patent number: 8969645
    Abstract: We provide a process comprising: a. feeding a chlorinated-hydrocarbon and an ionic liquid catalyst to a treatment unit; b. operating the treatment unit at an elevated temperature to produce dechlorinated-hydrocarbon and HCl; and c. collecting the dechlorinated-hydrocarbon, wherein at least 90 wt % of the chlorides are removed. A second process comprises: a. creating an ionic liquid catalyst-rich zone in a distillation unit; b. passing chlorinated-hydrocarbon to the distillation unit; c. operating the unit under conditions causing removal of alkyl chloride to produce dechlorinated-hydrocarbon having a final boiling point close to a first final boiling point. A third process comprises: a. feeding alkylate gasoline blending component and ionic liquid catalyst to a treatment unit; b. operating the treatment unit; and c. collecting a dechlorinated-hydrocarbon, wherein at least 90 wt % of the chlorides have been removed and the dechlorinated-hydrocarbon has a second RON that is close to a first RON.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: March 3, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Hye Kyung Cho Timken, Michael Sean Driver
  • Publication number: 20150025285
    Abstract: Processes for eliminating oxygenates and water from a light hydrocarbon processing system, wherein oxygenates are removed from a light hydrocarbon stream by adsorption of the oxygenates on an oxygenate adsorption unit to provide a deoxygenated hydrocarbon stream, the oxygenate adsorption unit is regenerated via a regenerant stream to provide an oxygenated regenerant stream comprising the oxygenates, and the oxygenated regenerant stream is subjected to hydro-deoxygenation to convert the oxygenates into paraffins and water, wherein the water may also be permanently removed from the system.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Applicant: Chevron U.S.A. Inc.
    Inventors: Robert Fletcher Cleverdon, Clifford Michael Lowe, Hye Kyung Cho Timken
  • Patent number: 8936768
    Abstract: We provide an alkylation process unit, comprising: a control system connected to an alkylation reactor, that enables the alkylation reactor to operate in both an alkylate mode that produces a gasoline blending component having a RON of 90 or higher and in a distillate mode that produces a second gasoline blending component having a RON of 85 or higher.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: January 20, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Shawn Shlomo Winter, Howard Steven Lacheen, Sven Ivar Hommeltoft
  • Patent number: 8921636
    Abstract: Methods for converting an HF alkylation unit to an ionic liquid alkylation system configured for performing ionic liquid catalyzed alkylation processes may comprise connecting at least one component configured for ionic liquid catalyzed alkylation to at least one component of the HF alkylation unit, wherein the at least one component of the HF alkylation unit is retained, modified or adapted for use in the ionic liquid alkylation system. An ionic liquid alkylation system derived from an existing or prior HF alkylation unit is also disclosed.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: December 30, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Robert Fletcher Cleverdon, Christine Marie Phillips, Hye Kyung Cho Timken
  • Patent number: 8920755
    Abstract: Methods for converting an H2SO4 alkylation unit to an ionic liquid alkylation system configured for performing ionic liquid catalyzed alkylation processes may comprise connecting at least one component configured for ionic liquid catalyzed alkylation to at least one component of the H2SO4 alkylation unit, wherein the at least one component of the H2SO4 alkylation unit is retained, modified or adapted for use in the ionic liquid alkylation system. Ionic liquid catalyzed alkylation systems derived from existing conventional alkylation units, and ionic liquid catalyzed alkylation processes are also disclosed.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: December 30, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Robert Fletcher Cleverdon, Christine Marie Phillips, Hye Kyung Cho Timken
  • Patent number: 8906311
    Abstract: A process unit, comprising: a) an alkylation reactor; and b) a control system that enables the alkylation reactor to be operated in an alkylate mode and in a distillate mode; wherein the alkylation reactor can switch back and forth from operating in the alkylate mode to the distillate mode.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: December 9, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Shawn Shlomo Winter, Howard Steven Lacheen, Sven Ivar Hommeltoft
  • Publication number: 20140350321
    Abstract: We provide a process and apparatus for preparing a used ionic liquid catalyst for safe disposal, comprising hydrolyzing the used ionic liquid catalyst comprising an anhydrous metal halide with a basic solution at a temperature from ?20° C. to 90° C. to produce a hydrolyzed product, evolve a hydrogen halide gas, and dissolve the hydrogen halide gas into the basic solution.
    Type: Application
    Filed: August 13, 2014
    Publication date: November 27, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Shawn Stephen Healy, Shawn Shlomo Winter
  • Patent number: 8884091
    Abstract: We provide an integrated process to produce alkylate gasoline, comprising: a. alkylating a mixture of hydrocarbons using a chloride-containing ionic liquid catalyst in an alkylation reactor to produce an alkylate gasoline comprising a chloride contaminant; b. hydro-regenerating the chloride-containing ionic liquid catalyst in a hydrogenation reactor; c. hydro-dechlorinating the alkylate gasoline comprising the chloride contaminant in a dechlorination reactor at a dechlorination pressure from 0 to 1000 psig of a hydrogenation pressure used in the hydrogenation reactor, to produce a dechlorinated alkylate gasoline; and d. feeding an off-gas, comprising 70 to 99.9 vol % hydrogen, from the dechlorination reactor to the hydrogenation reactor. We also provide an integrated alkylation process unit for conducting this process.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 11, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Thomas Van Harris, Hye Kyung Cho Timken
  • Publication number: 20140275680
    Abstract: We provide an integrated process to produce alkylate gasoline, comprising: a. alkylating a mixture of hydrocarbons using a chloride-containing ionic liquid catalyst in an alkylation reactor to produce an alkylate gasoline comprising a chloride contaminant; b. hydro-regenerating the chloride-containing ionic liquid catalyst in a hydrogenation reactor; c. hydro-dechlorinating the alkylate gasoline comprising the chloride contaminant in a dechlorination reactor at a dechlorination pressure from 0 to 1000 psig of a hydrogenation pressure used in the hydrogenation reactor, to produce a dechlorinated alkylate gasoline; and d. feeding an off-gas, comprising 70 to 99.9 vol % hydrogen, from the dechlorination reactor to the hydrogenation reactor. We also provide an integrated alkylation process unit for conducting this process.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Thomas Van Harris, Hye Kyung Cho Timken
  • Publication number: 20140174151
    Abstract: We provide an extracted conjunct polymer naphtha (45), comprising a hydrogenated conjunct polymer naphtha, from a used ionic liquid catalyst, having a final boiling point less than 246° C.(475° F.), a Bromine Number of 5 or less, and at least 30 wt % naphthenes. We also provide a blended alkylate gasoline (97 comprising the extracted conjunct polymer naphtha (45), and integrated alkylation processes to make the extracted conjunct polymer naphtha (45) and the blended alkylate gasoline (97). We also provide a method to analyze alkylate products, by determining an amount of methylcyclohexane in the alkylate products (80).
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Izadyar Dalvand, Douglas Robert Cyr, Michael Tung-hai Cheng, Huping Luo, Shawn Shlomo WInter, Michael Sean Driver, Donald Henry Mohr
  • Publication number: 20140179977
    Abstract: We provide an extracted conjunct polymer naphtha (45), comprising a hydrogenated conjunct polymer naphtha, from a used ionic liquid catalyst, having a final boiling point less than 246° C. (475° F.), a Bromine Number of 5 or less, and at least 30 wt % naphthenes. We also provide a blended alkylate gasoline (97) comprising the extracted conjunct polymer naphtha (45), and integrated alkylation processes to make the extracted conjunct polymer naphtha (45) and the blended alkylate gasoline (97). We also provide a method to analyze alkylate products, by determining an amount of methylcyclohexane in the alkylate products (80).
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Izadyar Dalvand, Douglas Robert Cyr, Michael Tung-hai Cheng, Huping Luo, Shawn Shlomo Winter, Michael Sean Driver, Donald Henry Mohr
  • Publication number: 20140171720
    Abstract: We provide a process comprising: a. feeding a chlorinated-hydrocarbon and an ionic liquid catalyst to a treatment unit; b. operating the treatment unit at an elevated temperature to produce dechlorinated-hydrocarbon and HCl; and c. collecting the dechlorinated-hydrocarbon, wherein at least 90 wt % of the chlorides are removed. A second process comprises: a. creating an ionic liquid catalyst-rich zone in a distillation unit; b. passing chlorinated-hydrocarbon to the distillation unit; c. operating the unit under conditions causing removal of alkyl chloride to produce dechlorinated-hydrocarbon having a final boiling point close to a first final boiling point. A third process comprises: a. feeding alkylate gasoline blending component and ionic liquid catalyst to a treatment unit; b. operating the treatment unit; and c. collecting a dechlorinated-hydrocarbon, wherein at least 90 wt % of the chlorides have been removed and the dechlorinated-hydrocarbon has a second RON that is close to a first RON.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Hye Kyung Cho Timken, Michael Sean Driver
  • Patent number: 8728301
    Abstract: Integrated isomerization and ionic liquid catalyzed alkylation processes may comprise integrating ionic liquid alkylation and n-butane isomerization using a common distillation unit for separating an n-butane containing fraction from at least one of an alkylation hydrocarbon phase from an ionic liquid alkylation reactor and an isomerization hydrocarbon stream from an isomerization unit. The n-butane containing fraction may undergo isomerization to provide an isomerization reactor effluent comprising the isomerization hydrocarbon stream. An isobutane containing fraction, separated from at least one of the alkylation hydrocarbon phase and the isomerization hydrocarbon stream, may be recycled from the distillation unit to the ionic liquid alkylation reactor.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: May 20, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventor: Hye Kyung Cho Timken
  • Publication number: 20140134065
    Abstract: We provide an alkylation process, comprising: separating and recycling a hydrogen gas and a hydrogen chloride from an offgas of a hydrogenation reactor; wherein the hydrogen gas is recycled to the hydrogenation reactor; and wherein the hydrogen chloride is recycled to an alkylation reactor. We also provide an alkylation process unit for performing this process.
    Type: Application
    Filed: January 17, 2014
    Publication date: May 15, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Robert Fletcher Cleverdon, Bong-Ku Chang, Donald Henry Mohr, Christine Marie Phillips
  • Patent number: 8704018
    Abstract: We provide an extracted conjunct polymer naphtha (45), comprising a hydrogenated conjunct polymer naphtha, from a used ionic liquid catalyst, having a final boiling point less than 246° C. (475° F.), a Bromine Number of 5 or less, and at least 30 wt % naphthenes. We also provide a blended alkylate gasoline (97) comprising the extracted conjunct polymer naphtha (45), and integrated alkylation processes to make the extracted conjunct polymer naphtha (45) and the blended alkylate gasoline (97). We also provide a method to analyze alkylate products, by determining an amount of methylcyclohexane in the alkylate products (80).
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: April 22, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Izadyar Dalvand, Douglas Robert Cyr, Michael Tung-hai Cheng, Huping Luo, Shawn Shlomo Winter, Michael Sean Driver, Donald Henry Mohr
  • Publication number: 20140066678
    Abstract: We provide processes, and process units for practicing the processes, comprising a. regenerating a used catalyst comprising an ionic liquid catalyst and a chloride, from an alkylation reactor, in a hydrogenation reactor to produce a regenerated catalyst effluent; b. separating at least a portion of the regenerated catalyst effluent into a gas fraction comprising a hydrogen gas and into a light hydrocarbon fraction comprising a hydrogen chloride; c. recycling at least a part of the gas fraction comprising the hydrogen gas to the hydrogenation reactor; and d. recovering at least an amount of the light hydrocarbon fraction comprising the hydrogen chloride and recycling the at least the amount of the light hydrocarbon fraction to the alkylation reactor. The alkylation process units comprise a hydrogenation reactor, a fractionation unit, and connections for transmitting the gas fraction to the hydrogenation reactor and for transmitting the light hydrocarbon fraction to the alkylation reactor.
    Type: Application
    Filed: July 31, 2012
    Publication date: March 6, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Bong-Kyu Chang
  • Publication number: 20140039231
    Abstract: We provide an alkylation process, comprising: separating and recycling a hydrogen gas and a hydrogen chloride from an offgas of a hydrogenation reactor; wherein the hydrogen gas is recycled to the hydrogenation reactor; and wherein the hydrogen chloride is recycled to an alkylation reactor. We also provide an alkylation process unit for performing this process.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Robert Fletcher Cleverdon, Bong-Kyu Chang, Donald Henry Mohr, Christine Marie Phillips