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).

  • Publication number: 20140039230
    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: July 31, 2012
    Publication date: February 6, 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: 20140037512
    Abstract: We provide alkylation process units, one comprising: a) a hydrogenation reactor that produces a regenerated catalyst effluent; b) a fractionation unit that separates the effluent into gas and light hydrocarbon; c) a connection between the fractionation unit for transmitting the gas to the hydrogenation reactor; and d) a connection between the fractionation unit and an alkylation reactor to transmit the light hydrocarbon to the alkylation reactor.
    Type: Application
    Filed: May 24, 2013
    Publication date: February 6, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Bong-Kyu Chang
  • Publication number: 20140005459
    Abstract: We provide a hydrodechlorination and hydrogen chloride recovery process, comprising: a) contacting at least one hydrocarbon product with a hydrodechlorination catalyst in the presence of hydrogen under hydrodechlorination conditions to provide: i) an off-gas comprising an HCl, and ii) a dechlorinated product; b) separating the dechlorinated product from the off-gas; c) contacting the off-gas with an adsorbent under HCl adsorbing conditions such that the HCl is adsorbed by the adsorbent; and d) after step c), recovering the HCl from the adsorbent.
    Type: Application
    Filed: August 29, 2013
    Publication date: January 2, 2014
    Applicant: CHEVRON CORPORATION
    Inventors: Bi-Zeng Zhan, Hye Kyung Cho Timken, Zunqing He, Russell Evan Cooper
  • Publication number: 20130243672
    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: Application
    Filed: May 2, 2013
    Publication date: September 19, 2013
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Hye Kyung Cho Timken, Shawn Shlomo Winter, Howard Steven Lacheen, Sven Ivar Hommeltoft
  • Publication number: 20130209324
    Abstract: We provide an apparatus for preparing a used catalyst for disposal, comprising: a. a vessel used to hydrolyze a used ionic liquid catalyst comprising an anhydrous metal halide, to produce a hydrolyzed product; and b. a separator used to separate a liquid phase and a solid phase from the hydrolyzed product; wherein the liquid phase comprises a non-water-reactive aqueous phase and a hydrocarbon phase; and wherein the solid phase comprises a solid portion of the hydrolyzed product, that is not water reactive.
    Type: Application
    Filed: October 26, 2012
    Publication date: August 15, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Shawn Stephen Healy, Shawn Shlomo Winter
  • Publication number: 20130066121
    Abstract: A process for producing alkylate comprising contacting a first hydrocarbon stream comprising at least one olefin having from 2 to 6 carbon atoms which contains 1,3-butadiene and 1-butene with a hydroisomerization catalyst in the presence of hydrogen under conditions favoring the simultaneous selective hydrogenation of 1,3-butadiene to butenes and the isomerization of 1-butene to 2-butene and contacting the resulting stream and a second hydrocarbon stream comprising at least one isoparaffin having from 3 to 6 carbon atoms with an acidic ionic liquid catalyst under alkylation conditions to produce an alkylate is disclosed.
    Type: Application
    Filed: November 8, 2012
    Publication date: March 14, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Howard Steven Lacheen, Hye-Kyung Cho Timken
  • Publication number: 20130066132
    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: Application
    Filed: September 12, 2011
    Publication date: March 14, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Robert Fletcher Cleverdon, Christine Marie Phillips, Hye Kyung Cho Timken
  • Publication number: 20130066133
    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: Application
    Filed: September 12, 2011
    Publication date: March 14, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Robert Fletcher Cleverdon, Christine Marie Phillips, Hye Kyung Cho Timken
  • Publication number: 20130062253
    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: Application
    Filed: September 12, 2011
    Publication date: March 14, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventor: Hye Kyung Cho Timken
  • Publication number: 20120282150
    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: Application
    Filed: July 18, 2012
    Publication date: November 8, 2012
    Applicant: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Shawn Shlomo Winter, Howard Steven Lacheen, Sven Ivar Hommeltoft
  • Patent number: 8288601
    Abstract: A process for reacting an iso-alkane, comprising: a) partially converting one or more olefins in an olefinic feedstock to make a converted olefinic feedstock, wherein the converting is different from isomerization; b) isolating from the converted olefinic feedstock: i. an enriched feed that has linear internal olefins, and ii. products having a boiling point of 150° C. or higher; and c) alkylating the iso-alkane with the enriched feed to make an alkylate gasoline blending component.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: October 16, 2012
    Assignee: Chevron U.S.A. Inc.
    Inventors: Sven Ivar Hommeltoft, Hye Kyung Cho Timken, Steve Sarup Mathur
  • Publication number: 20120226083
    Abstract: A process for reacting an iso-alkane, comprising: a) partially converting one or more olefins in an olefinic feedstock to make a converted olefinic feedstock, wherein the converting is different from isomerization; b) isolating from the converted olefinic feedstock: i. an enriched feed that has linear internal olefins, and ii. products having a boiling point of 150° C. or higher; and c) alkylating the iso-alkane with the enriched feed to make an alkylate gasoline blending component.
    Type: Application
    Filed: May 14, 2012
    Publication date: September 6, 2012
    Applicant: Chevron U.S.A. Inc.
    Inventors: Sven Ivar Hommeltoft, Hye Kyung Cho Timken, Steve Sarup Mathur
  • Patent number: 7507686
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: March 24, 2009
    Assignee: W. R. Grace & Co. - Conn.
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
  • Patent number: 7476638
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction additive comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve. The molecular sieve is normally a large pore size zeolite such as USY or zeolite beta or an intermediate pore size zeolite such as ZSM-5. The metal is normally a metal of Period 3 of the Periodic Table, preferably zinc or vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: January 13, 2009
    Assignee: W. R. Grace & Co. - Conn.
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
  • Patent number: 7452839
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a rare earth component which enhances the cracking activity of the cracking catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The rare earth component preferably includes cerium which enhances the sulfur reduction activity of the catalyst. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: November 18, 2008
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Wu-Cheng Cheng, Terry G. Roberie, Hye Kyung Cho Timken, Scott Kevin Purnell, Xinjin Zhao
  • Patent number: 7198711
    Abstract: A process for catalytic cracking of a hydrocarbon feedstock feeds to produce an enhanced yield butylenes and isobutane comprises contacting the feedstock with a catalyst composition comprising MCM-68. The MCM-68 may be used as the primary cracking catalyst or may be used as an additive component in conjunction with a conventional cracking catalyst, such as a large pore molecular sieve having a pore size greater than 7 Angstrom.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: April 3, 2007
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Arthur Chester, Larry Arthur Green, Sandeep Singh Dhingra, Timothy Mason, Hye Kyung Cho Timken
  • Patent number: 6923903
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: August 2, 2005
    Assignees: ExxonMobil Oil Corporation, W.R. Grace & Co.-Conn.
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Terry G. Roberie, Michael S. Ziebarth
  • Patent number: 6852214
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction additive comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve. The molecular sieve is normally a large pore size zeolite such as USY or zeolite beta or an intermediate pore size zeolite such as ZSM-5. The metal is normally a metal of Period 4 of the Periodic Table, preferably zinc or vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: February 8, 2005
    Assignees: Mobil Oil Corporation, W. R. Grace & Co.-Conn.
    Inventors: Arthur W. Chester, Hye Kyung Cho Timken, Michael S. Ziebarth, Terry G. Roberie
  • Patent number: 6846403
    Abstract: The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a rare earth component which enhances the cracking activity of the cracking catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 4 of the Periodic Table, preferably vanadium. The rare earth component preferably includes cerium which enhances the sulfur reduction activity of the catalyst. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: January 25, 2005
    Assignees: Mobil Oil Corporation, W.R. Grace & Co.-Conn.
    Inventors: Wu-Cheng Cheng, Scott Kevin Purnell, Terry G. Roberie, Hye Kyung Cho Timken, Xinjin Zhao
  • Patent number: 6797155
    Abstract: A process for catalytic cracking of a hydrocarbon feedstock comprises contacting the feedstock with a catalyst composition comprising a primary cracking component, such as zeolite Y, and a mesoporous aluminophosphate material which includes a solid aluminophosphate composition modified with at least one element selected from zirconium, cerium, lanthanum, manganese, cobalt, zinc, and vanadium. The mesoporous aluminophosphate material has a specific surface area of at least 100 m2/g, an average pore size less than or equal to 100 Å, and a pore size distribution such that at least 50% of the pores have a pore diameter less than 100 Å.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: September 28, 2004
    Assignee: ExxonMobil Research & Engineering Co.
    Inventors: Arthur Warren Chester, Frederick Earl Daugherty, Anthony Shiu lun Fung, Charles Theodore Kresge, Hye Kyung Cho Timken, James Clarke Vartuli, Ranjit Kumar, Terry G. Roberie, Michael S. Ziebarth