Patents Assigned to GRT, Inc.
  • Patent number: 6596177
    Abstract: In a method of improving the quality of diesel fuel, an oxidizing gas is formed into sub-micron size bubbles which are dispersed into diesel fuel, after which the treated fuel is recovered. The oxidizing gas is preferably ozone and is utilized immediately upon its manufacture. By means of the method, sulfur is removed from the diesel fuel and the cetane rating thereof is increased.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: July 22, 2003
    Assignee: GRT, Inc.
    Inventor: Jeffrey H. Sherman
  • Publication number: 20030125589
    Abstract: In a method of converting alkanes to their corresponding alcohols and ethers a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal bromide in the first zone to provide bromine; bromine reacts with the alkane in the second zone to form alkyl bromide; and the alkyl bromide reacts with metal oxide in the third zone to form the corresponding alcohol and/or ether. Metal bromide from the third zone is transported through the vessel to the first zone and metal oxide from the first zone is recycled to the third zone. A second embodiment of the invention differs from the first embodiment in that metal oxide is transported through the vessel from the first zone to the third zone and metal bromide is recycled from the third zone to the first zone.
    Type: Application
    Filed: February 19, 2003
    Publication date: July 3, 2003
    Applicant: GRT, Inc.
    Inventor: Philip Grosso
  • Publication number: 20030120121
    Abstract: A reactant selected from the group consisting of alkanes, alkenes, and aromatics is reacted with a metal halide to form the halide of the reactant and reduced metal. The reduced metal is oxidized to form metal oxide. The metal oxide is reacted with the halide of the reactant to produce the alcohol and/or the ether corresponding to the reactant and the original metal halide which is recycled.
    Type: Application
    Filed: February 12, 2003
    Publication date: June 26, 2003
    Applicant: GRT, Inc.
    Inventors: Jeffrey H. Sherman, Eric McFarland
  • Patent number: 6525230
    Abstract: In a method of converting alkanes to their corresponding alcohols and ethers a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal bromide in the first zone to provide bromine; bromine reacts with the alkane in the second zone to form alkyl bromide; and the alkyl bromide reacts with metal oxide in the third zone to form the corresponding alcohol and/or ether. Metal bromide from the third zone is transported through the vessel to the first zone and metal oxide from the first zone is recycled to the third zone. A second embodiment of the invention differs from the first embodiment in that metal oxide is transported through the vessel from the first zone to the third zone and metal bromide is recycled from the third zone to the first zone.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: February 25, 2003
    Assignee: GRT, Inc.
    Inventor: Philip Grosso
  • Patent number: 6486368
    Abstract: Alcohols, ethers, and olefins are manufactured from alkanes by mixing an alkane and bromine in a reactor to form alkyl bromide and hydrogen bromide. The alkyl bromide only or the alkyl bromide and the hydrogen bromide are directed into contact with metal oxide to form an alcohol and/or an ether, or an olefin and metal bromide. The metal bromide is oxidized to form original metal oxide and bromine, both of which are recycled.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: November 26, 2002
    Assignees: GRT, Inc., The Regents of the University of California
    Inventors: Xiao Ping Zhou, Ivan Marc Lorkovic, Jeffrey H. Sherman
  • Patent number: 6472572
    Abstract: Methanol and/or dimethyl ether are manufactured from methane by mixing methane and bromine in a reactor to form methyl bromide and hydrogen bromide. The methyl bromide only or the methyl bromide and the hydrogen bromide are directed into contact with metal oxide to form methanol and/or dimethyl ether and a metal bromide. The metal bromide is oxidized to form original metal oxide catalyst and bromine, both of which are recycled.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: October 29, 2002
    Assignees: GRT, Inc., The Regents of the University of California
    Inventors: Xiao Ping Zhou, Ivan Marc Lorkovic, Galen D. Stucky, Peter C. Ford, Jeffrey H. Sherman, Philip Grosso
  • Patent number: 6465696
    Abstract: Alcohols, ethers, and olefins are manufactured from alkanes by mixing an alkane and bromine in a reactor to form alkyl bromide and hydrogen bromide. The alkyl bromide only or the alkyl bromide and the hydrogen bromide are directed into contact with metal oxide to form an alcohol and/or an ether, or an olefin and metal bromide. The metal bromide is oxidized to form original metal oxide and bromine, both of which are recycled.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: October 15, 2002
    Assignees: GRT, Inc., The Regents of the University of California
    Inventors: Xiao Ping Zhou, Galen D. Stucky, Jeffrey H. Sherman
  • Patent number: 6462243
    Abstract: Alcohols and/or ethers are synthesized from alkanes by mixing an alkane and bromine in a reactor to form alkyl bromide and hydrogen bromide. The alkyl bromide is directed into contact with metal oxide to form alcohol and/or ether and a metal bromide. The metal bromide is oxidized to metal oxide and bromine, both of which are recycled.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: October 8, 2002
    Assignees: GRT, Inc., The Regents of the University of California
    Inventors: Xiao Ping Zhou, Ivan Marc Lorkovic, Galen D. Stucky, Peter C. Ford, Jeffrey H. Sherman, Philip Grosso
  • Patent number: 6444131
    Abstract: In a method of removing organic and biological contaminants from a liquid, an oxidizing gas is formed into sub-micron size bubbles which are dispersed into an initially contaminated liquid, after which the treated liquid is recovered. The oxidizing gas is preferably selected from a group including ozone and chlorine dioxide and is utilized immediately upon its manufacture. An oxidizing liquid may be employed in conjunction with the oxidizing gas. The method may be practiced repeatedly. A base may be added to the contaminated liquid to raise the pH thereof.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: September 3, 2002
    Assignee: GRT, Inc.
    Inventor: Jeffrey H. Sherman
  • Publication number: 20020070467
    Abstract: In a method of and apparatus for producing sub-micron bubbles in liquids, slurries, and sludges, gas is maintained on the interior of the gas permeable partition at predetermined pressure. Relative movement between the gas permeable partition and the surrounding material forms sub-micron sized bubbles in the liquid, slurry, or sludge.
    Type: Application
    Filed: February 12, 2002
    Publication date: June 13, 2002
    Applicant: GRT, Inc.
    Inventor: Jeffrey H. Sherman
  • Patent number: 6403840
    Abstract: Olefin bromohydrins and/or alkane dibromides are reacted with metal oxide to form olefin oxides. The metal bromide is converted to form the original metal oxide and bromine, both of which are recycled.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: June 11, 2002
    Assignee: GRT, Inc.
    Inventors: Xiao Ping Zhou, Galen D. Stucky, Jeffrey H. Sherman
  • Patent number: 6398195
    Abstract: In a method of and apparatus for producing sub-micron bubbles in liquids and slurries, gas is maintained on the interior of the gas permeable partition at predetermined pressure. Relative movement between the gas permeable partition and a liquid forms sub-micron sized bubbles in the liquid.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: June 4, 2002
    Assignee: GRT, Inc.
    Inventor: Jeffrey H. Sherman
  • Patent number: 6383399
    Abstract: In a method of removing organic contaminants from a liquid, an oxidizing gas is formed into sub-micron size bubbles which are dispersed into an initially contaminated liquid, after which the treated liquid is recovered. The oxidizing gas is preferably selected from a group including ozone and chlorine dioxide and is utilized immediately upon its manufacture. An oxidizing liquid may be employed in conjunction with the oxidizing gas.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: May 7, 2002
    Assignee: GRT, Inc.
    Inventor: Jeffrey H. Sherman
  • Patent number: 6328854
    Abstract: A porous tube is positioned coaxially around and in axial alignment with a tubular lamp forming an annulus therebetween. Methane is directed through the porous tube and forms submicron size bubbles in a liquid flowing through the annulus. Energy from the tubular lamp generates hydroxyl radicals in the liquid which combine with the methane to form methanol. Photocatalytic material may be provided in the annulus either in the form of a layer of photocatalytic material formed on the interior surface of the porous tube or in the form of particles of photocatalytic material circulating through the annulus with the flowing liquid. A heat transfer apparatus may be provided in the annulus for removing heat generated by operation of the lamp.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: December 11, 2001
    Assignee: GRT, Inc.
    Inventors: Jeffrey H. Sherman, Philip Grosso
  • Patent number: 6251289
    Abstract: In a method of removing organic contaminants from a liquid, an oxidizing gas is formed into sub-micron size bubbles which are dispersed into an initially contaminated liquid, after which the treated liquid is recovered. The oxidizing gas is preferably selected from a group including ozone and chlorine dioxide and is utilized immediately upon its manufacture. An oxidizing liquid may be employed in conjunction with the oxidizing gas.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: June 26, 2001
    Assignee: GRT, Inc.
    Inventor: Jeffrey H. Sherman
  • Patent number: 6214176
    Abstract: In a method of and apparatus for manufacturing methanol and higher alcohols from natural gas a catalytic area is formed on the exterior of a gas permeable partition. Natural gas is maintained on the interior of the gas permeable partition at predetermined pressure. Relative movement between the gas permeable partition and the water forms sub-micron sized bubbles of natural gas. Electromagnetic radiation is directed onto the catalytic surface to form hydroxyl radicals from the water. Methyl, ethyl, and propyl ions from the natural gas combine with the hydroxyl ions to form methanol, ethanol, and propanol.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: April 10, 2001
    Assignee: GRT, Inc.
    Inventors: Jeffrey H. Sherman, Peter C. Ford, Galen D. Stucky, Philip Grosso
  • Patent number: 6193221
    Abstract: In a method of and apparatus for producing sub-micron bubbles in liquids, slurries, and sludges, gas is maintained on the interior of the gas permeable partition at predetermined pressure. Relative movement between the gas permeable partition and the surrounding material forms sub-micron sized bubbles in the liquid, slurry, or sludge.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: February 27, 2001
    Assignee: GRT, Inc.
    Inventor: Jeffrey H. Sherman
  • Patent number: 6183701
    Abstract: In a method of and apparatus for manufacturing methanol and higher alcohols from natural gas a catalytic area is formed on the exterior of a gas permeable partition. Natural gas is maintained on the interior of the gas permeable partition at predetermined pressure. Relative movement between the gas permeable partition and the water forms sub-micron sized bubbles of natural gas. Electromagnetic radiation is directed onto the catalytic surface to form hydroxyl radicals from the water. Methyl, ethyl, and propyl ions from the natural gas combine with the hydroxyl ions to form methanol, ethanol, and propanol.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: February 6, 2001
    Assignee: GRT, Inc.
    Inventor: Jeffrey H. Sherman
  • Patent number: 6180066
    Abstract: In a method of and apparatus for manufacturing methanol from methane a catalytic area is formed on the exterior of a hollow sintered stainless steel tube. Methane is maintained within the sintered stainless steel tube at predetermined pressure, and water continuously flowing across the exterior surface thereof strips the methane forming sub-micron sized methane bubbles. Ultraviolet light energy is directed onto the catalytic surface to form hydroxyl radicals from the flowing water. The hydroxyl radicals cleave the carbon-hydrogen bonds of the methane to form methyl ions which combine with the hydroxyl ions to form methanol.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: January 30, 2001
    Assignee: GRT, Inc.
    Inventor: Jeffrey H. Sherman
  • Patent number: 6156279
    Abstract: In a method of and apparatus for manufacturing methanol from methane, a catalytic area is formed on the exterior of a hollow sintered stainless steel tube. Methane is maintained within the sintered stainless steel tube at predetermined pressure, and water continuously flowing across the exterior surface thereof strips the methane forming sub-micron sized methane bubbles. Light energy is directed onto the catalytic surface to form hydroxyl radicals from the flowing water. The hydroxyl radicals cleave the carbon-hydrogen bonds of the methane to form methyl ions which combine with the hydroxyl ions to form methanol.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: December 5, 2000
    Assignee: GRT, Inc.
    Inventor: Jeffrey H. Sherman