Patents by Inventor Robert Fletcher Cleverdon

Robert Fletcher Cleverdon 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).

  • Alkylation process unit comprising a fractionation unit for separating hydrogen gas and hydrogen chloride
    Patent number: 9254450
    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: Grant
    Filed: January 17, 2014
    Date of Patent: February 9, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Robert Fletcher Cleverdon, Bong-Ku Chang, Donald Henry Mohr, Christine Marie Phillips
  • Hydrogen recycle and hydrogen chloride recovery in an alkylation process
    Patent number: 9233316
    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: Grant
    Filed: July 31, 2012
    Date of Patent: January 12, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Robert Fletcher Cleverdon, Bong-Kyu Chang, Donald Henry Mohr, Christine Marie Phillips
  • OXYGENATE REMOVAL FROM LIGHT HYDROCARBON PROCESSING
    Publication number: 20150025284
    Abstract: Processes for eliminating water and oxygenates from a light hydrocarbon processing system, wherein oxygenates are removed from a light hydrocarbon stream by adsorption of the oxygenates on a primary oxygenate adsorption unit to provide a deoxygenated hydrocarbon stream, the primary oxygenate adsorption unit is regenerated via a first regenerant stream to provide an oxygenated first regenerant stream, the oxygenated first regenerant stream is deoxygenated via a secondary oxygenate adsorption unit, and the secondary oxygenate adsorption unit is regenerated via a second regenerant stream to provide an oxygenated second regenerant stream for permanent removal from the system.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Applicant: Chevron U.S.A. Inc.
    Inventors: Clifford Michael Lowe, Robert Fletcher Cleverdon
  • REGENERATION OF OLEFIN TREATING ADSORBENTS FOR REMOVAL OF OXYGENATE CONTAMINANTS
    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
  • Conversion of HF alkylation units for ionic liquid catalyzed alkylation processes
    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
  • Conversion of HF alkylation units for ionic liquid catalyzed alkylation processes
    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
  • ALKYLATION PROCESS UNIT COMPRISING A FRACTIONATION UNIT FOR SEPARATING HYDROGEN GAS AND HYDROGEN CHLORIDE
    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
  • HYDROGEN RECYCLE AND HYDROGEN CLORIDE RECOVERY IN AN ALKYLATION PROCESS
    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
  • CONVERSION OF HF ALKYLATION UNITS FOR IONIC LIQUID CATALYZED ALKYLATION PROCESSES
    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
  • CONVERSION OF HF ALKYLATION UNITS FOR IONIC LIQUID CATALYZED ALKYLATION PROCESSES
    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