Patents by Inventor Jeffrey L. White

Jeffrey L. White 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: 20240068333
    Abstract: A system and method for turning a well over to production. The method may include drilling a wellbore using a drillstring, casing the wellbore, fracturing a reservoir, drilling the wellbore to a plug back total depth using the drillstring to clean out the wellbore, and converting the drillstring from a drilling mode to a production mode.
    Type: Application
    Filed: August 28, 2023
    Publication date: February 29, 2024
    Inventors: Matthew L. White, Jeffrey Spencer, Brian B. Hope, Christopher J. Heikkinen
  • Patent number: 7393990
    Abstract: A method is provided for converting oxygenates, e.g., methanol, to olefins, e.g., ethylene and propylene, comprising contacting said oxygenates and an aromatics co-feed, e.g., xylenes, with a framework gallium-containing molecular sieve catalyst comprising pores having a size ranging from about 5.0 Angstroms to about 7.0 Angstroms, e.g., ZSM-5, under production conditions effective to produce olefins. A catalyst composition is also provided, comprising a ZSM-5 zeolite-bound ZSM-5 zeolite having a bound zeolite of framework Ga-containing zeolite having a Si/Ga molar ratio ranging from 5 to 500 and a binder of Ga-modified, e.g., Ga-exchanged and/or Ga-impregnated, zeolite having a Si/Ga molar ratio ranging from 5 to ?.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: July 1, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Teng Xu, Jeffrey L. White, Xiaobing Feng, Gary D. Mohr, Brenda A. Raich
  • Patent number: 7338645
    Abstract: Disclosed is a method and system for reducing the formation of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by forming and/or coating one or more of the heating devices, feed lines or feed introduction nozzles of/with a material that is resistant to the formation of metal catalyzed side reaction byproducts. The invention also may include monitoring and/or maintaining the temperature of at least a portion of the feed vaporization and introduction system and/or of the feedstock contained therein below about 400° C., 350° C., 300° C., 250° C., 200° C. or below about 150° C. The temperature can be maintained in the desired range by jacketing at least a portion of the feed vaporization and introduction system, such as at least a portion of the feed introduction nozzle, with a thermally insulating material or by implementing a cooling system.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: March 4, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jeffrey P. Jones, Kenneth Ray Clem, Stephen N. Vaughn, Teng Xu, Jeffrey L. White
  • Patent number: 7034196
    Abstract: Disclosed is a method and apparatus for reducing the amount of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by monitoring and/or maintaining the temperature of at least a portion of the feed vaporization and introduction system and/or of the feedstock contained therein below about 400° C., 350° C., 300° C., 250° C., 200° C. or below about 150° C. The temperature can be maintained in the desired range by jacketing at least a portion of the feed vaporization and introduction system, such as at least a portion of the feed introduction nozzle, with a thermally insulating material or by implementing a cooling system.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: April 25, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Kenneth Ray Clem, Stephen N. Vaughn, Teng Xu, Jeffrey L. White
  • Publication number: 20040152935
    Abstract: Disclosed is a method and system for reducing the formation of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by forming and/or coating one or more of the heating devices, feed lines or feed introduction nozzles of/with a material that is resistant to the formation of metal catalyzed side reaction byproducts. The invention also may include monitoring and/or maintaining the temperature of at least a portion of the feed vaporization and introduction system and/or of the feedstock contained therein below about 400° C., 350° C., 300° C., 250° C., 200° C. or below about 150° C. The temperature can be maintained in the desired range by jacketing at least a portion of the feed vaporization and introduction system, such as at least a portion of the feed introduction nozzle, with a thermally insulating material or by implementing a cooling system.
    Type: Application
    Filed: January 21, 2004
    Publication date: August 5, 2004
    Inventors: Jeffrey P. Jones, Kenneth Ray Clem, Stephen N. Vaughn, Teng Xu, Jeffrey L. White
  • Patent number: 6743747
    Abstract: Disclosed is a crystalline silicoaluminophosphate molecular sieve comprising a porous framework structure and at least one single ring aromatic compound within the porous framework structure. The silicoaluminophosphate molecular sieve is used to convert oxygenate feedstock to olefin product. The olefin product is high in ethylene and propylene content, with a high selectivity to ethylene. The silicoaluminophosphate molecular sieve can be included with a binder and other materials in finished catalyst form.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: June 1, 2004
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Teng Xu, Jeffrey L. White
  • Patent number: 6740790
    Abstract: Disclosed is a method for making olefin product from an oxygenate-containing feedstock. In the method, a silicoaluminophosphate molecular sieve catalyst is contacted with the oxygenate-containing feedstock in a reactor at an average catalyst feedstock exposure index of at least 1.0. The method produces lower coke yield and provides an olefin product which is low in C1-C4 paraffin content. The invention is particularly effective in producing an olefin product having a very low propane content.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: May 25, 2004
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Keith H. Kuechler, Marcel J. G. Janssen, Stephen N. Vaughn, Shun C. Fung, Nicolas P. Coute, Jeffrey Scott Smith, James R. Lattner, Jeffrey L. White, Teng Xu, William L. Kuechler, Sr., Machteld M. Mertens, Cornelius W. M. Van Oorschot
  • Patent number: 6737556
    Abstract: Disclosed is a method and system for reducing the formation of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by forming and/or coating one or more of the heating devices, feed lines or feed introduction nozzles of/with a material that is resistant to the formation of metal catalyzed side reaction byproducts. The invention also may include monitoring and/or maintaining the temperature of at least a portion of the feed vaporization and introduction system and/or of the feedstock contained therein below about 400° C., 350° C., 300° C., 250° C., 200° C. or below about 150° C. The temperature can be maintained in the desired range by jacketing at least a portion of the feed vaporization and introduction system, such as at least a portion of the feed introduction nozzle, with a thermally insulating material or by implementing a cooling system.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: May 18, 2004
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jeffrey P. Jones, Kenneth Ray Clem, Stephen N. Vaughn, Teng Xu, Jeffrey L. White
  • Patent number: 6734330
    Abstract: Disclosed is a crystalline silicoaluminophosphate molecular sieve comprising a porous framework structure and at least one single ring aromatic compound within the porous framework structure. The silicoaluminophosphate molecular sieve is used to convert oxygenate feed stock to olefin product. The olefin product is high in ethylene and propylene content, with a high selectivity to ethylene. The silicoaluminophosphate molecular sieve can be included with a binder and other materials in finished catalyst form.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: May 11, 2004
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Teng Xu, Jeffrey L. White
  • Publication number: 20040077912
    Abstract: Disclosed is a method and system for reducing the formation of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by forming and/or coating one or more of the heating devices, feed lines or feed introduction nozzles of/with a material that is resistant to the formation of metal catalyzed side reaction byproducts. The invention also may include monitoring and/or maintaining the temperature of at least a portion of the feed vaporization and introduction system and/or of the feedstock contained therein below about 400° C., 350° C., 300° C., 250° C., 200° C. or below about 150° C. The temperature can be maintained in the desired range by jacketing at least a portion of the feed vaporization and introduction system, such as at least a portion of the feed introduction nozzle, with a thermally insulating material or by implementing a cooling system.
    Type: Application
    Filed: October 21, 2002
    Publication date: April 22, 2004
    Inventors: Jeffrey P. Jones, Kenneth Ray Clem, Stephen N. Vaughn, Teng Xu, Jeffrey L. White
  • Publication number: 20030236441
    Abstract: Disclosed is a method and apparatus for reducing the amount of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by monitoring and/or maintaining the temperature of at least a portion of the feed vaporization and introduction system and/or of the feedstock contained therein below about 400° C., 350° C., 300° C., 250° C., 200° C. or below about 150° C. The temperature can be maintained in the desired range by jacketing at least a portion of the feed vaporization and introduction system, such as at least a portion of the feed introduction nozzle, with a thermally insulating material or by implementing a cooling system.
    Type: Application
    Filed: June 19, 2002
    Publication date: December 25, 2003
    Inventors: Kenneth Ray Clem, Stephen N. Vaughn, Teng Xu, Jeffrey L. White
  • Publication number: 20030186444
    Abstract: A method for characterizing molecular sieve catalysts by solid-state nuclear magnetic resonance spectroscopy. In particular, the number of acid and non-acid proton sites on molecular sieve catalysts are quantitively determined by solid-state 1H NMR magic angle spinning spectroscopy in the presence of a spin-counting standard.
    Type: Application
    Filed: March 18, 2003
    Publication date: October 2, 2003
    Inventors: Jeffrey L. White, Teng Xu
  • Publication number: 20030018231
    Abstract: A method is provided for converting oxygenates, e.g., methanol, to olefins, e.g., ethylene and propylene, comprising contacting said oxygenates and an aromatics co-feed, e.g., xylenes, with a framework gallium-containing molecular sieve catalyst comprising pores having a size ranging from about 5.0 Angstroms to about 7.0 Angstroms, e.g., ZSM-5, under production conditions effective to produce olefins. A catalyst composition is also provided, comprising a ZSM-5 zeolite-bound ZSM-5 zeolite having a bound zeolite of framework Ga-containing zeolite having a Si/Ga molar ratio ranging from 5 to 500 and a binder of Ga-modified, e.g., Ga-exchanged and/or Ga-impregnated, zeolite having a Si/Ga molar ratio ranging from 5 to ∞.
    Type: Application
    Filed: June 26, 2001
    Publication date: January 23, 2003
    Inventors: Teng Xu, Jeffrey L. White, Xiaobing Feng, Gary D. Mohr, Brenda A. Raich
  • Publication number: 20020169349
    Abstract: Disclosed is a method for making olefin product from an oxygenate-containing feedstock. In the method, a silicoaluminophosphate molecular sieve catalyst is contacted with the oxygenate-containing feedstock in a reactor at an average catalyst feedstock exposure index of at least 1.0. The method produces lower coke yield and provides an olefin product which is low in C1-C4 paraffin content. The invention is particularly effective in producing an olefin product having a very low propane content.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 14, 2002
    Inventors: Keith H. Kuechler, Marcel J.G. Janssen, Stephen N. Vaughn, Shun C. Fung, Nicolas P. Coute, Jeffrey Scott Smith, James R. Lattner, Jeffrey L. White, Teng Xu, William L. Kuechler, Machteld M. Mertens, Cornelius W.M. Van Oorschot
  • Patent number: 6437208
    Abstract: Disclosed is a method for making olefin product from an oxygenate-containing feedstock. In the method, a silicoaluminophosphate molecular sieve catalyst is contacted with the oxygenate-containing feedstock in a reactor at an average catalyst feedstock exposure index of at least 1.0. The method produces lower coke yield and provides an olefin product which is low in C1-C4 paraffin content. The invention is particularly effective in producing an olefin product having a very low propane content.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: August 20, 2002
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Keith H. Kuechler, Marcel J. G. Janssen, Stephen N. Vaughn, Shun C. Fung, Nicolas P. Coute, Jeffrey Scott Smith, James R. Lattner, Jeffrey L. White, Teng Xu, William L. Kuechler, Sr., Machteld M. Mertens, Cornelius W. M. Van Oorschot
  • Patent number: 6080303
    Abstract: The present invention provides a process for improving the catalytic activity of small and medium pore acidic zeolite catalyst which comprises the steps of treating a zeolite with a phosphorus compound to form a phosphorus treated zeolite and combining the phosphorus treated zeolite with AlPO.sub.4. Optionally the phosphorus treated zeolite is calcined. The step of combining the zeolite with AlPO.sub.4 may optionally be followed by steaming the combined catalyst. Examples of useful phosphorus containing compounds useful in treating the zeolite include phosphoric acid, ammonium mono or dihydrogen phosphate, organic phosphites, and organophosphines. Preferably the phosphorus containing compound is an ammonium acid phosphate. An additional alternate embodiment provides a process for increasing the hydrothermal stability of a zeolite catalyst which comprises first treating a zeolite with a phosphorus containing compound then blending with AlPO.sub.4.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: June 27, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Guang Cao, Luc R. M. Martens, Jeffrey L. White, Tan-Jen Chen, Matu J. Shah