By Oxidizing Alcohol Or Hydrocarbon Patents (Class 423/591)
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Patent number: 8642813Abstract: The present invention provides methods, reactor systems, and catalysts for converting in a continuous process biomass to less complex oxygenated compounds for use in downstream processes to produce biofuels and chemicals. The invention includes methods of converting the components of biomass, such as hemicellulose, cellulose and lignin, to water-soluble materials, including lignocellulosic derivatives, cellulosic derivatives, hemicellulosic derivatives, carbohydrates, starches, polysaccharides, disaccharides, monosaccharides, sugars, sugar alcohols, alditols, polyols, diols, alcohols, ketones, cyclic ethers, esters, carboxylic acids, aldehydes, and mixtures thereof, using hydrogen and a heterogeneous liquefaction catalyst.Type: GrantFiled: December 29, 2011Date of Patent: February 4, 2014Assignee: Virent, Inc.Inventors: Ming Qiao, Randy D. Cortright, John Kania, Elizabeth Woods
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Patent number: 7442360Abstract: The present invention includes methods and apparatuses that utilize microchannel technology and, more specifically in exemplary form, producing hydrogen peroxide using microchannel technology. An exemplary process for producing hydrogen peroxide comprises flowing feed streams into intimate fluid communication with one another within a process microchannel to form a reactant mixture stream comprising a hydrogen source and an oxygen source such as, without limitation, hydrogen gas and oxygen gas. Thereafter, a catalyst is contacted by the reactant mixture and is operative to convert a majority of the reactant mixture to hydrogen peroxide that is withdrawn via an egressing product stream. During the hydrogen peroxide chemical reaction, exothermic energy is generated. This exothermic energy is absorbed by the fluid within the microchannel as well as the microchannel itself.Type: GrantFiled: April 27, 2005Date of Patent: October 28, 2008Assignee: Velocys, Inc.Inventors: Anna Lee Y. Tonkovich, Bin Yang, William Allen Rogers, Jr., Paul William Neagle, Sean P. Fitzgerald, Kai Tod Paul Jarosch, Dongming Qiu, David J. Hesse, Michael Lamont
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Patent number: 6656446Abstract: A method for synthesizing hydrogen peroxide comprises the step of: mixing an analog of a secondary alcohol that is soluble with carbon dioxide with a free radical initiator and oxygen in carbon dioxide to generate hydrogen peroxide. Another method of synthesizing hydrogen peroxide comprises the step of: mixing hydrogen, oxygen and a CO2-philic catalyst in carbon dioxide phase. The CO2-philic catalyst is soluble or miscible in carbon dioxide and is suitable to catalyze the reaction of hydrogen and oxygen to produce hydrogen peroxide. The method also comprises the step of reacting the hydrogen and oxygen to produce hydrogen peroxide.Type: GrantFiled: April 28, 2000Date of Patent: December 2, 2003Assignee: University of PittsburghInventors: Eric J. Beckman, Dan Hâncu
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Patent number: 6375922Abstract: The invented process produces hydrogen peroxide by reacting a primary or secondary alcohol with oxygen in the presence of an imide compound of the following formula (1): wherein each of R1 and R2 is, identical to or different from each other, a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cycloalkyl group, a hydroxyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group, or an acyl group, where R1 and R2 may be combined to form a double bond, or an aromatic or non-aromatic ring; X is an oxygen atom or a hydroxyl group, where one or two N-substituted cyclic imido groups indicated in the formula (1) may be further bonded to the R1, R2, or to the double, bond or aromatic or non-aromatic ring formed together by R1 and R2, to yield hydrogen peroxide. According to the process, hydrogen peroxide can be easily and efficiently obtained from readily available materials.Type: GrantFiled: October 6, 2000Date of Patent: April 23, 2002Assignee: Daicel Chemical Industries, Ltd.Inventors: Yasutaka Ishii, Tatsuya Nakano
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Publication number: 20020025293Abstract: A process-is described for the continuous production of alcoholic or hydro-alcoholic solutions of hydrogen peroxide in a concentration ranging from 2 to 10% by weight and their direct use in oxidation processes.Type: ApplicationFiled: June 1, 2001Publication date: February 28, 2002Applicant: ENI S.p.AInventors: Giuseppe Paparatto, Franco Rivetti, Pietro Andrigo, Giordano De Alberti
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Patent number: 5968472Abstract: Improved procedure for the production of hydrogen peroxide by oxidation with molecular oxygen of secondary alcohols admixed with primary alcohols and/or ethers.Type: GrantFiled: October 30, 1997Date of Patent: October 19, 1999Assignee: Repsol Quimica S.A.Inventors: Juan Antonio Delgado Oyague, Pilar De Frutos Escrig, Ana Padilla Polo
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Patent number: 5268160Abstract: A process is provided whereby hydrogen peroxide containing various organic impurities is purified by contact with an organic nonionic hydrophobic polymeric adsorbent, preferably derived from polymerized styrene.Type: GrantFiled: June 29, 1992Date of Patent: December 7, 1993Assignee: Arco Chemical Technology, L.P.Inventors: Rajendra S. Albal, Robert N. Cochran
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Patent number: 5254326Abstract: Hydrogen peroxide is produced by liquid phase molecular oxidation of methyl benzyl alcohol in an oxidation zone, product hydrogen peroxide being recovered as vapor from the oxidation zone.Type: GrantFiled: March 22, 1993Date of Patent: October 19, 1993Assignee: ARCO Chemical Technology, L.P.Inventors: David W. Leyshon, Robert J. Jones, Robert N. Cochran
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Patent number: 5214168Abstract: Epoxides are produced by an integrated process involving air oxidation of an aryl-substituted secondary alcohol, epoxidation of an olefin by the secondary alcohol oxidation product in the presence of a titanium silicalite catalyst, and generation of the secondary alcohol by hydrogenation.Type: GrantFiled: April 30, 1992Date of Patent: May 25, 1993Assignee: Arco Chemical Technology, L.P.Inventors: John G. Zajacek, Guy L. Crocco
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Patent number: 5194067Abstract: A process is provided whereby the hydrogen peroxide-containing oxidate from methyl benzyl alcohol oxidation is extracted with water and with ethyl benzene extractive solvent and an aqueous hydrogen peroxide phase is separated from an ethyl benzene solvent phase which also contains methyl benzyl alcohol and acetophenone, the improvement being that ethyl benzene is introduced into the extraction zone below the point of introduction of the oxidate, thus avoiding the possibility of formation of an aqueous hydrogen peroxide phase concentrated to a hazardous degree in hydrogen peroxide in the extraction zone.Type: GrantFiled: June 29, 1992Date of Patent: March 16, 1993Assignee: Arco Chemical Technology, L.P.Inventors: Rajendra S. Albal, Robert N. Cochran, David W. Leyshon, Lawrence M. Candela
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Patent number: 5041680Abstract: Hydrogen peroxide and organic active oxygen-containing compounds in an organic stream, such as that from a methyl benzyl alcohol oxidate after hydrogen peroxide separation, are selectively decomposed by non-catalytic thermal treatment at 150.degree.-180.degree. C. for 20-60 minutes whereby the organic active oxygen materials selectively decompose to acetophenone and methyl benzyl alcohol.Type: GrantFiled: February 19, 1991Date of Patent: August 20, 1991Assignee: Arco Chemical Technology, Inc.Inventors: Rajendra S. Albal, Robert N. Cochran, Alan P. Woinsky
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Patent number: 5039508Abstract: Hydrogen peroxide is produced by liquid phase molecular oxygen oxidation of methyl benzyl alcohol, the reaction being carried out such that the oxygen absorption rate is 90% or more of the maximum at the reaction conditions and the exit gas oxygen partial pressure is not greater than 3.0, the minimum necessary to establish the maximum oxygen absorption rate.Type: GrantFiled: July 19, 1990Date of Patent: August 13, 1991Assignee: ARCO Chemical Technology, Inc.Inventors: Robert N. Cochran, Lawrence M. Candela
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Patent number: 4994625Abstract: Hydrogen peroxide and organic active oxygen-containing compounds in an organic stream, such as that from a methyl benzyl alcohol oxidate after hydrogen peroxide separation, are selectively decomposed by contact with an alumina catalyst, the organic active oxygen materials selectively decomposing to acetophenone and methyl benzyl alcohol.Type: GrantFiled: December 27, 1989Date of Patent: February 19, 1991Assignee: Arco Chemical Technology, Inc.Inventors: Rajendra S. Albal, Robert N. Cochran
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Patent number: 4975266Abstract: Hydrogen peroxide is produced by liquid phase molecular oxygen oxidation of methyl benzyl alcohol. Inhibiting impurities are removed prior to oxidation.Type: GrantFiled: December 27, 1989Date of Patent: December 4, 1990Assignee: Arco Chemical Technology, Inc.Inventors: Rajendra S. Albal, Robert N. Cochran, Lawrence M. Candela
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Patent number: 4897085Abstract: A process is provided whereby the hydrogen peroxide-containing oxidate from methyl benzyl alcohol oxidation is contacted with ethyl benzene extractive solvent and a hydrogen peroxide phase is separated from a solvent phase which also contains methyl benzyl alcohol and acetophenone.Type: GrantFiled: January 10, 1989Date of Patent: January 30, 1990Assignee: Arco Chemical Technology, Inc.Inventors: Robert N. Cochran, Lawrence M. Candela
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Patent number: 4897252Abstract: Hydrogen peroxide is produced by liquid phase molecular oxygen oxidation of methyl benzyl alcohol, water concentration in the reaction mixture being maintained below 4% by weight, more preferably below 2% by weight, and most preferably below 1% by weight.Type: GrantFiled: January 10, 1989Date of Patent: January 30, 1990Assignee: Arco Chemical Technology, Inc.Inventors: Robert N. Cochran, Lawrence M. Candela
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Patent number: 4589488Abstract: A method for the recovery of mineral resources, such as metallic minerals, petroleum, etc., from solid materials, such as subsurface earth formations, including; partially burning a hydrogen-containing fuel in the presence of an oxidizing agent under conditions to produce partial oxidation products, such as alcohols, hydrogen peroxide, aldehydes, ketones, etc., terminating the burning to prevent decomposition of the partial oxidation products and contacting the solid materials with the partial oxidation products and contacting the solid materials with the partial oxidation products and an alkaline or acidic material.Type: GrantFiled: June 21, 1983Date of Patent: May 20, 1986Assignee: Phillips Petroleum CompanyInventor: Robert M. Schirmer
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Patent number: 4540052Abstract: In accordance with the present invention, microorganisms are controlled in a body of fluid, particularly an aqueous fluid containing such microorganisms, by burning a hydrogen-containing fuel in the presence of an oxidizing agent under conditions sufficient to produce partial oxidation products, containing significant amounts of at least one compound capable of controlling microorganisms, such as hydrogen peroxide and aldehydes controlling the burning step to prevent significant decomposition of the thus produced partial oxidation products and the formation of products of complete combustion therefrom by controlling the burning step by selecting at least one of the type of hydrogen-containing fuel, the fuel/oxidizing agent equivalence ratio, the temperature, the pressure and the residence time, preferrably the residence time by introducing a quench medium, particularly water, into the partial oxidation products, to produce an effluent containing said partial oxidation products containing including at least onType: GrantFiled: June 21, 1983Date of Patent: September 10, 1985Assignee: Phillips Petroleum CompanyInventor: Donald O. Hitzman
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Patent number: 4303632Abstract: Process comprising contacting and reacting a diarylmethanol having 13 to 25 carbon atoms and of the formula RCHOHR' wherein each of R and R' is aryl, the same or different, in the liquid state, at a temperature of about 130.degree.-260.degree. C., with gaseous oxygen to produce hydrogen peroxide and diaryl ketone of the formula RCOR' wherein R and R' are the same as above.Type: GrantFiled: December 14, 1979Date of Patent: December 1, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventor: Lawrence W. Gosser
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Patent number: 4302435Abstract: Process comprising contacting and reacting a diarylketone of the formula RCOR', wherein each of R and R' is aryl, the same or different, and hydrogen over at least a catalytic amount of lead-poisoned palladium catalyst, for example, Lindlar catalyst, at a hydrogen gage pressure in the range from about 150 kPa to about 15,000 kPa, preferably from about 340 kPa to about 3400 kPa, at a temperature in the range from about 50.degree. C. to about 200.degree. C., preferably from about 100.degree. C. to about 150.degree. C., to produce diarylmethanol of the formula RCHOHR', wherein R and R' are as defined above.Type: GrantFiled: September 22, 1980Date of Patent: November 24, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventor: Lawrence W. Gosser
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Patent number: 4131646Abstract: In a process for the manufacture of hydrogen peroxide wherein a compound containing the anthracene nucleus is hydrogenated to the corresponding 9,10-dihydroanthracene and the resulting 9,10-dihydroanthracene is oxidized to the corresponding 9-(or 10-) hydroperoxide; the step which comprises contacting the hydroperoxide thus produced with an acid catalyst to produce hydrogen peroxide and the starting compound containing the anthracene nucleus.Type: GrantFiled: September 16, 1977Date of Patent: December 26, 1978Assignee: E. I. Du Pont de Nemours and CompanyInventor: Lawrence W. Gosser