Patents by Inventor Dennis Stamires

Dennis Stamires 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: 10457873
    Abstract: A process is disclosed for converting a particulate solid biomass material to a high quality bio-oil in high yield. The process comprises a pretreatment step and a pyrolysis step. The pretreatment comprises a step of at least partially demineralizing the solid biomass, and improving the accessibility of the solid biomass by opening the texture of the particles of the solid biomass. In a preferred embodiment the liquid pyrolysis product is separated into the bio-oil and an aqueous phase, and the aqueous phase is used as a solvent in the demineralization step and/or in the step of improving the accessibility of the solid biomass by opening the texture of the particles of the solid biomass.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: October 29, 2019
    Assignee: Inaeris Technologies, LLC
    Inventors: Dennis Stamires, Michael Brady, Paul O'Connor, Jacobus Cornelis Rasser
  • Patent number: 10286391
    Abstract: Processes for making a catalytic system and catalytic systems for converting solid biomass into fuel or specialty chemical products, or for upgrading bio-oils are described. The catalyst system may comprise a non-zeolitic matrix with a hierarchical pore structure ranging from 300 to about 104 Angstrom pore size, a zeolite, such as MFI-type or IM-5 zeolite, and a binder.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: May 14, 2019
    Assignee: Inaeris Technologies, LLC
    Inventors: Dennis Stamires, Michael Brady
  • Patent number: 9738833
    Abstract: A two-stage reactor is disclosed for the conversion of solid particulate biomass material. The reactor is designed to maximize conversion of the solid biomass material, while limiting excess cracking of primary reaction products. The two-stage reactor comprises a first stage rector, in which solid biomass material is thermally pyrolyzed to primary reaction products. The primary reaction products are catalytically converted in a second stage reactor.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: August 22, 2017
    Assignee: Inaeris Technologies, LLC
    Inventors: Michael Brady, Ronald Lee Cordle, Peter Loezos, Dennis Stamires
  • Patent number: 9700874
    Abstract: A process for biomass catalytic cracking is disclosed herein. More specifically, the process is in presence of is a mixed metal oxide catalyst represented by the formula (X1O).(X2O)a.(X3YbO4) wherein X1, X2 and X3 are alkaline earth elements selected from the group of Mg, Ca, Be, Ba, and mixture thereof, and Y is a metal selected from the group of Al, Mn, Fe, Co, Ni, Cr, Ga, B, La, P and mixture thereof, wherein the catalyst is formed by calcining at least one compound comprising at least one alkaline earth element and a metal element.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: July 11, 2017
    Assignee: Inaeris Technologies, LLC
    Inventors: Robert Bartek, Michael Brady, Dennis Stamires
  • Patent number: 9649624
    Abstract: Catalyst compositions comprising a phosphorous-promoted ZSM-5 component and a silica-containing binder, and methods for making and using same, are disclosed. More, specifically, processes for making a catalyst for biomass conversion are provided. The process includes: treating a ZSM-5 zeolite with a phosphorous-containing compound to form a phosphorous-promoted ZSM-5 component; preparing a slurry comprising the phosphorous-promoted ZSM-5 component and a silica-containing binder; and shaping the slurry into shaped bodes. Such catalysts can be used for the Thermocatalytic conversion of particulate biomass to liquid products such as bio-oil, resulting in higher bio-oil yields and lower coke than conventional catalysts.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: May 16, 2017
    Assignee: Inaeris Technologies, LLC
    Inventors: Bruce Adkins, Dennis Stamires, Robert Bartek, Michael Brady, John Hacskaylo
  • Patent number: 9643166
    Abstract: A process for preparing a catalyst is disclosed. The process generally comprises the steps of: (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptized quasi-crystalline boehmite; (b) adding a monovalent acid to the slurry; (c) adjusting the pH of the slurry to a value above about 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: May 9, 2017
    Assignee: Albemarle Netherlands B.V.
    Inventors: Dennis Stamires, Paul O'Connor, Erik Jeroen Laheij, Charles Vadovic
  • Patent number: 9381502
    Abstract: Process for the preparation of a catalyst comprising the steps of (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptized quasi-crystalline boehmite, (b) adding a monovalent acid to the slurry, (c) adjusting the pH of the slurry to a value above 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: July 5, 2016
    Assignee: Albemarle Netherlands, B.V.
    Inventors: Dennis Stamires, Paul O'Connor, Erik Jeroen LaHeij, Charles Vadovic
  • Patent number: 9333494
    Abstract: A process for producing catalyst for biomass catalytic cracking is disclosed herein. The process includes modifying a phyllosilicate to produce a modified phyllosilicate having an improved yield of a pyrolysis reaction. The modification of the phyllosilicate includes leaching the clay with an acid or basic solution to form a leached clay preparation, calcining the leached clay and contacting the treated clay with a suspension comprising metal ions for ion-exchange. The modified clay catalyst can then be mixed with inorganic materials such as zeolites and dried to form fluidizable microspheres.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: May 10, 2016
    Assignee: Inaeris Technologies, LLC
    Inventors: Robert Bartek, Michael Brady, Dennis Stamires
  • Publication number: 20160017238
    Abstract: Processes for making a catalytic system and catalytic systems for converting solid biomass into fuel of specialty chemical products are described. The catalyst system may comprise a non-zeolitic matrix and an in situ grown zeolite, such as MFI-type zeolite, with a meso-micro hierarchical pore structure. In some embodiments, the non-zeolitic matrix has a meso-macro hierarchical pore structure.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 21, 2016
    Inventors: Dennis Stamires, Michael Brady
  • Publication number: 20150375216
    Abstract: Process for the preparation of a catalyst comprising the steps of (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptised quasi-crystalline boehmite, (b) adding a monovalent acid to the slurry, (c) adjusting the pH of the slurry to a value above 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Inventors: Dennis Stamires, Paul O'Connor, Erik Jeroen LaHeij, Charles Vadovic
  • Publication number: 20150352541
    Abstract: Processes for making a catalytic system and catalytic systems for converting solid biomass into fuel or specialty chemical products, or for upgrading bio-oils are described. The catalyst system may comprise a non-zeolitic matrix with a hierarchical pore structure ranging from 300 to about 104 Angstrom pore size, a zeolite, such as MFI-type or IM-5 zeolite, and a binder.
    Type: Application
    Filed: February 15, 2013
    Publication date: December 10, 2015
    Inventors: Dennis Stamires, Michael Brady
  • Publication number: 20150231613
    Abstract: Catalyst compositions comprising a phosphorous-promoted ZSM-5 component and a silica-containing binder, and methods for making and using same, are disclosed. More, specifically, processes for making a catalyst for biomass conversion are provided. The process includes: treating a ZSM-5 zeolite with a phosphorous-containing compound to form a phosphorous-promoted ZSM-5 component; preparing a slurry comprising the phosphorous-promoted ZSM-5 component and a silica-containing binder; and shaping the slurry into shaped bodes. Such catalysts can be used for the Thermocatalytic conversion of particulate biomass to liquid products such as bio-oil, resulting in higher bio-oil yields and lower coke than conventional catalysts.
    Type: Application
    Filed: May 6, 2015
    Publication date: August 20, 2015
    Inventors: Bruce Adkins, Dennis Stamires, Robert Bartek, Michael Brady, John Hackskaylo
  • Publication number: 20150203763
    Abstract: A two-stage reactor is disclosed for the conversion of solid particulate biomass material. The reactor is designed to maximize conversion of the solid biomass material, while limiting excess cracking of primary reaction products. The two-stage reactor comprises a first stage rector, in which solid biomass material is thermally pyrolyzed to primary reaction products. The primary reaction products are catalytically converted in a second stage reactor.
    Type: Application
    Filed: March 27, 2015
    Publication date: July 23, 2015
    Inventors: Michael Brady, Ronald Lee Cordle, Peter Loezos, Dennis Stamires
  • Patent number: 9044741
    Abstract: Catalyst compositions comprising a phosphorous-promoted ZSM-5 component and a silica-containing binder, and methods for making and using same, are disclosed. More specifically, processes for making a catalyst for biomass conversion are provided. The process includes: treating a ZSM-5 zeolite with a phosphorous-containing compound to form a phosphorous-promoted ZSM-5 component; preparing a slurry comprising the phosphorous-promoted ZSM-5 component and a silica-containing binder; and shaping the slurry into shaped bodies. Such catalysts can be used for the thermocatalytic conversion of particulate biomass to liquid products such as bio-oil, resulting in higher bio-oil yields and lower coke than conventional catalysts.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: June 2, 2015
    Assignee: KiOR, Inc.
    Inventors: Bruce Adkins, Dennis Stamires, Robert Bartek, Michael Brady, John Hackskaylo
  • Patent number: 9017428
    Abstract: A two-stage reactor is disclosed for the conversion of solid particulate biomass material. The reactor is designed to maximize conversion of the solid biomass material, while limiting excess cracking of primary reaction products. The two-stage reactor comprises a first stage reactor, in which solid biomass material is thermally pyrolyzed to primary reaction products. The primary reaction products are catalytically converted in a second stage reactor.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: April 28, 2015
    Assignee: KiOR, Inc.
    Inventors: Michael Brady, Ronald Lee Cordle, Peter Loezos, Dennis Stamires
  • Publication number: 20150111723
    Abstract: A process for biomass catalytic cracking is disclosed herein. More specifically, the process is in presence of is a mixed metal oxide catalyst represented by the formula (X1O).(X2O)a.(X3YbO4) wherein X1, X2 and X3 are alkaline earth elements selected from the group of Mg, Ca, Be, Ba, and mixture thereof, and Y is a metal selected from the group of Al, Mn, Fe, Co, Ni, Cr, Ga, B, La, P and mixture thereof, wherein the catalyst is formed by calcining at least one compound comprising at least one alkaline earth element and a metal element.
    Type: Application
    Filed: December 4, 2014
    Publication date: April 23, 2015
    Inventors: Robert Bartek, Michael Brady, Dennis Stamires
  • Patent number: 9000245
    Abstract: A process is disclosed for converting biomass to fuels and/or valuable chemicals. The process comprises the steps of a) activating biomass to make it more susceptible to conversion; c) partially converting the biomass to a solubilized material; and d) subjecting the unconverted biomass to a second conversion step. The process optionally comprises a step b) of adding a solvent to the activated biomass. In a preferred embodiment the solubilized biomass obtained in step c) is removed before the unconverted biomass is subjected to step d).
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: April 7, 2015
    Assignee: KiOR, Inc.
    Inventors: Paul O'Connor, Dennis Stamires, Sjoerd Daamen
  • Publication number: 20150027871
    Abstract: A process for making a catalytic system for converting solid biomass into fuel of specialty chemical products is disclosed. The process includes preparing a slurry precursor mixture by mixing an aluminosilicate clay material with a pore regulating agent and optionally a binder, shaping the mixture into shaped bodies; removing the pore regulating agent to form porous shaped bodies, preparing an aqueous reaction mixture comprising the porous shaped bodies in presence of a zeolite seeding material, and thermally treating the aqueous reaction mixture to form the catalyst system. The catalyst system can comprise, for example, a MFI-type zeolite.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 29, 2015
    Inventors: Dennis Stamires, Michael Brady
  • Patent number: 8932371
    Abstract: A process is disclosed for preparing fluidizable particles of a biomass/catalyst composite material. The process comprises the steps of (i) providing a particulate, solid biomass material; (ii) forming a composite of the biomass material and a catalytic material; (iii) subjecting the biomass material to a thermal treatment at a torrefaction temperature at or above 200° C., and low enough to avoid significant conversion of the biomass material to liquid conversion products; and (iv) forming fluidizable particles from the biomass material. Step (ii) may be carried out before or after step (iii).
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: January 13, 2015
    Assignee: KiOR, Inc.
    Inventors: Robert Bartek, Dennis Stamires, Michael Brady
  • Patent number: 8921628
    Abstract: A process for biomass catalytic cracking is described herein. More specifically, the process comprises heating the cellulosic biomass to a conversion temperature in presence of a mixed metal oxide catalyst represented by the formula (X1O).(X2O)a.(X3YbO4), wherein X1, X2 and X3 are alkaline earth elements selected from the group of Mg, Ca, Be, Ba , and mixture thereof, and Y is a metal selected from the group of Al, Mn, Fe, Co, Ni, Cr, Ga, B, La, P and mixture thereof.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 30, 2014
    Assignee: KiOR, Inc.
    Inventors: Robert Bartek, Michael Brady, Dennis Stamires