Patents by Inventor Stephen Mark Davis

Stephen Mark Davis 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: 9346721
    Abstract: The invention relates to hydrocarbon conversion processes, to equipment useful in such processes, to the products of such hydrocarbon conversion processes and the use thereof, and to the use of energy derived from such processes.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 24, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stephen Mark Davis, Mark L. Merrifield, Keith H. Kuechler, Loren K. Starcher
  • Patent number: 9243193
    Abstract: The disclosure relates to processes for upgrading heavy hydrocarbon oils such as heavy crude oils, atmospheric residuum, vacuum residuum, heavy oils from catalytic treatment, heavy cycle oils from fluid catalytic cracking, thermal tars, as oils from visbreaking, oils from oil sands, bitumen, deasphlter rock, and heavy oils derived from coal. The process utilizes a utility fluid including recycled liquid hydroprocessed product containing a significant amount of single or multi-ring aromatics. Unlike conventional fixed bed resid hydroprocessing, the process can be operated at temperatures pressures and reactor conditions that favor the desired hydrocracking reactions over aromatics hydrogenation reduce the coking tendencies of heavy hydrocarbon oils.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 26, 2016
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Stephen H. Brown, Stephen Mark Davis
  • Publication number: 20140378728
    Abstract: The invention relates to hydrocarbon conversion processes, to equipment useful in such processes, to the products of such hydrocarbon conversion processes and the use thereof, and to the use of energy derived from such processes.
    Type: Application
    Filed: May 19, 2014
    Publication date: December 25, 2014
    Inventors: Stephen Mark Davis, Mark L. Merrifield, Keith H. Kuechler, Loren K. Starcher
  • Patent number: 8865100
    Abstract: The present application is directed to a method and system for monetizing energy. More specifically, the invention is directed to the economically efficient utilization of remote or stranded natural gas resources. The invention includes importing a high energy density material into an energy market and distributing the high energy density material (HEDM) therein. The HEDM is produced from reduction of a material oxide such as boria into the HEDM, which may be boron. The reduction utilizes remote hydrocarbon resources such as stranded natural gas resources.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: October 21, 2014
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Bruce T. Kelley, Harry W. Deckman, Stephen Mark Davis, Frank Hershkowitz
  • Publication number: 20140262947
    Abstract: The disclosure relates to processes for upgrading heavy hydrocarbon oils such as heavy crude oils, atmospheric residuum, vacuum residuum, heavy oils from catalytic treatment, heavy cycle oils from fluid catalytic cracking, thermal tars, as oils from visbreaking, oils from oil sands, bitumen, deasphlter rock, and heavy oils derived from coal. The process utilizes a utility fluid including recycled liquid hydroprocessed product containing a significant amount of single or multi-ring aromatics. Unlike conventional fixed bed resid hydroprocessing, the process can be operated at temperatures pressures and reactor conditions that favor the desired hydrocracking reactions over aromatics hydrogenation reduce the coking tendencies of heavy hydrocarbon oils.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Stephen H. Brown, Stephen Mark Davis
  • Publication number: 20140174980
    Abstract: Provided is a hydrocarbon tar. The tar has 75 wt % or more of aromatics of 10 carbons to 75 carbons based on the total weight of the tar. The aromatics exhibit 40% to 80% aromaticity. The tar has a boiling point of from 300° F. to 1350° F. There is also a fuel oil composition having the tar therein. There are also processes for making the hydrocarbon tar.
    Type: Application
    Filed: March 12, 2013
    Publication date: June 26, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Stephen Harold Brown, Frank Cheng-Yu Wang, Stephen Mark Davis, Cathleen Yung
  • Patent number: 8754276
    Abstract: A reverse flow regenerative reactor having first and second zones, each having first and second ends, the first zone having a plurality of channels capable of separately conveying at least two components of a combustible gas mixture, a gas distributor configured for injecting the components of the combustible gas mixture into first zone, a combustion zone including a selective combustion catalyst disposed at or downstream of the second end of said channels for catalyzing combustion, wherein the second zone is positioned and situated to receive a combusted gas mixture. Processes usefully conducted in the reactor are also disclosed.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: June 17, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: John Scott Buchanan, Stephen Mark Davis, Frank Hershkowitz, John Slocum Coleman, Seth McConkie Washburn
  • Publication number: 20140046107
    Abstract: A reverse flow regenerative reactor having first and second zones, each having first and second ends, the first zone having a plurality of channels capable of separately conveying at least two components of a combustible gas mixture, a gas distributor configured for injecting the components of the combustible gas mixture into first zone, a combustion zone including a selective combustion catalyst disposed at or downstream of the second end of said channels for catalyzing combustion, wherein the second zone is positioned and situated to receive a combusted gas mixture. Processes usefully conducted in the reactor are also disclosed.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 13, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: John Scott Buchanan, Stephen Mark Davis, Frank Hershkowitz, John Slocum Coleman, Seth McConkie Washburn
  • Publication number: 20110180456
    Abstract: This invention relates to a process for cracking hydrocarbon feedstock containing resid comprising: (a) heating a hydrocarbon feedstock containing resid; (b) adding molecular hydrogen to said heated feedstock to form a mixture stream; (c) adding a catalyst containing metal-sulfide particles to said heated feedstock and/or said mixture stream; (d) reacting said mixture in a catalytic hydrovisbreaking reactor under conditions of temperature, pressure and residence time sufficient to catalytically hydrovisbreak at least a portion of said resid into hydrovisbroken hydrocarbon components; (e) passing said reacted mixture stream into a high pressure separator and separating hydrogen from said reacted mixture; (f) passing said reacted mixture through a knockout drum to remove catalyst and unreacted or uncracked resid as a bottoms stream; and (g) passing said catalytically hydrovisbroken hydrocarbon components into a steam cracking furnace and thermally cracking said hydrocarbon components to form light olefins, a
    Type: Application
    Filed: January 22, 2010
    Publication date: July 28, 2011
    Inventors: Stephen Mark Davis, Paul F. Keusenkothen, Jonathan Martin Mcconnachie, Larry L. Iaccino, Richard C. Stell
  • Publication number: 20110059001
    Abstract: The present application is directed to a method and system for monetizing energy. More specifically, the invention is directed to the economically efficient utilization of remote or stranded natural gas resources. The invention includes importing a high energy density material into an energy market and distributing the high energy density material (HEDM) therein. The HEDM is produced from reduction of a material oxide such as boria into the HEDM, which may be boron. The reduction utilizes remote hydrocarbon resources such as stranded natural gas resources.
    Type: Application
    Filed: April 9, 2009
    Publication date: March 10, 2011
    Inventors: Bruce T. Kelley, Harry W. Deckman, Stephen Mark Davis, Frank Hershkowitz
  • Patent number: 6811683
    Abstract: A process for producing a diesel fuel stock from bitumen uses steam and a hydroisomerized diesel fraction produced by a gas conversion process, to respectively stimulate the bitumen production and increase the cetane number of a hydrotreated diesel fuel fraction produced by upgrading the bitumen, to form a diesel stock. The diesel stock is used for blending and forming diesel fuel.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: November 2, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen Mark Davis, Michael Gerard Matturro
  • Patent number: 6540023
    Abstract: A process for producing a diesel fuel stock from bitumen uses steam, naphtha and a hydroisomerized diesel fraction produced by a gas conversion process, to respectively (i) stimulate the bitumen production, (ii) dilute it for pipeline transport to an upgrading facility, and (iii) increase the cetane number of a hydrotreated diesel fuel fraction produced by upgrading the bitumen by blending it with the hydroisomerized gas conversion diesel fraction, to form the diesel stock. This diesel stock has a higher cetane number than that produced from the bitumen alone, and is used for blending and forming diesel fuel.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: April 1, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen Mark Davis, Michael Gerard Matturro
  • Patent number: 6531516
    Abstract: An integrated gas conversion and bitumen production process utilizes steam and light hydrocarbons produced from a natural gas fed gas conversion process, to stimulate the bitumen production and dilute it for transportation by pipeline. Hydrogen for hydroconversion of the bitumen and hydroisomerization of gas conversion hydrocarbons may be produced from part of the synthesis gas generated from the natural gas. The bitumen diluent is preferably naphtha produced by the gas conversion and the diluted bitumen is pipelined to a bitumen upgrading facility.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: March 11, 2003
    Assignee: ExxonMobil Research & Engineering Co.
    Inventors: Stephen Mark Davis, Michael Gerard Matturro
  • Publication number: 20020170228
    Abstract: A process for producing a diesel fuel stock from bitumen uses steam and a hydroisomerized diesel fraction produced by a gas conversion process, to respectively stimulate the bitumen production and increase the cetane number of a hydrotreated diesel fuel fraction produced by upgrading the bitumen, to form a diesel stock. The diesel stock is used for blending and forming diesel fuel.
    Type: Application
    Filed: March 27, 2001
    Publication date: November 21, 2002
    Inventors: Stephen Mark Davis, Michael Gerard Matturro
  • Publication number: 20020170846
    Abstract: An integrated gas conversion and bitumen production process utilizes steam and light hydrocarbons produced from a natural gas fed gas conversion process, to stimulate the bitumen production and dilute it for transportation by pipeline. Hydrogen for hydroconversion of the bitumen and hydroisomerization of gas conversion hydrocarbons may be produced from part of the synthesis gas generated from the natural gas. The bitumen diluent is preferably naphtha produced by the gas conversion and the diluted bitumen is pipelined to a bitumen upgrading facility.
    Type: Application
    Filed: March 27, 2001
    Publication date: November 21, 2002
    Inventors: Stephen Mark Davis, Michael Gerard Matturro
  • Publication number: 20020170714
    Abstract: A process for producing a diesel fuel stock from bitumen uses steam, naphtha and a hydroisomerized diesel fraction produced by a gas conversion process, to respectively (i) stimulate the bitumen production, (ii) dilute it for pipeline transport to an upgrading facility, and (iii) increase the cetane number of a hydrotreated diesel fuel fraction produced by upgrading the bitumen by blending it with the hydroisomerized gas conversion diesel fraction, to form the diesel stock. This diesel stock has a higher cetane number than that produced from the bitumen alone, and is used for blending and forming diesel fuel.
    Type: Application
    Filed: March 27, 2001
    Publication date: November 21, 2002
    Inventors: Stephen Mark Davis, Michael Gerard Matturro
  • Patent number: 6153155
    Abstract: The invention relates to a process for recovering the transition metal component of catalysts used in the hydroconversion of heavy hydrocarbonaceous materials. In accordance with the invention, a slurry of a transition metal catalyst and hydrocarbon is catalytically desulfurized resulting in a desulfurized product and a solid residue containing the transition metal. The transition metal may be recovered by coking the residue and then dividing the coker residue into two portions are combusted with the flue dust from the first combustion zone being conducted to the second combustion zone. The flue dust from the second combustion zone is treated with ammonia and ammonium carbonate in order to obtain ammonium molybdate.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: November 28, 2000
    Assignee: Exxon Research and Engineering Company
    Inventors: Michael Y. Wen, Georgui S. Golovin, Mikhail Ja. Shpirt, Leonid A. Zekel, Andrew Sullivan, Stephen Mark Davis
  • Patent number: 5888376
    Abstract: A process for converting a Fischer-Tropsch light oil stream to jet fuel by reacting said stream with a hydroisomerization catalyst in a reaction zone where the stream flows countercurrent to upflowing hydrogen-containing treat gas.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: March 30, 1999
    Assignee: Exxon Research and Engineering Co.
    Inventors: Robert J. Wittenbrink, Stephen Mark Davis, Larry L. Iaccino
  • Patent number: 5882505
    Abstract: A process for converting Fischer-Tropsch wax streams to lubricants by reacting said stream with a dewaxing catalyst in a reaction zone where the stream flows countercurrent to upflowing hydrogen-containing treat gas.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: March 16, 1999
    Assignee: Exxon Research and Engineering Company
    Inventors: Robert J. Wittenbrink, Stephen Mark Davis, Larry L. Iaccino
  • Patent number: 5660714
    Abstract: Nickel-copper catalysts supported on an acidic carrier, preferably containing a binder, are used to hydroisomerize paraffins, particularly Fischer-Tropsch paraffins, boiling at 350.degree. F.+ into lighter, more valuable products.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: August 26, 1997
    Assignee: Exxon Research and Engineering Company
    Inventors: Robert Jay Wittenbrink, Stephen Mark Davis, Kenneth Lloyd Riley