Source: http://www.google.com/patents/US7351559?dq=6,208,537
Timestamp: 2016-12-11 10:29:48
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Matched Legal Cases: ['Application No. 07008768', 'Application No. 00917888', 'Application No. 514253', 'Application No. 514253', 'Application No. 2004200701', 'Application No. 38794', 'Application No. 38794', 'Application No. 2004200701', 'Application No. 38794', 'Application No. 00804895', 'Application No. 00804895', 'Application No. 00917888', 'Application No. 00917888']

Patent US7351559 - Process for producing ethanol - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA process for producing ethanol including a combination of biochemical and synthetic conversions results in high yield ethanol production with concurrent production of high value coproducts. An acetic acid intermediate is produced from carbohydrates, such as corn, using enzymatic milling and fermentation...http://www.google.com/patents/US7351559?utm_source=gb-gplus-sharePatent US7351559 - Process for producing ethanolAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7351559 B2Publication typeGrantApplication numberUS 11/172,376Publication dateApr 1, 2008Filing dateJun 29, 2005Priority dateMar 11, 1999Fee statusPaidAlso published asCN1227364C, CN1343258A, CN1762973A, CN100575331C, DE60039973D1, EP1165820A1, EP1165820A4, EP1165820B1, EP2011879A2, EP2011879A3, EP2011879B1, US6509180, US6927048, US7682812, US7964379, US8236534, US20030077771, US20060019360, US20090023192, US20100273229, US20110275127, US20130102043, WO2000053791A1Publication number11172376, 172376, US 7351559 B2, US 7351559B2, US-B2-7351559, US7351559 B2, US7351559B2InventorsDan Verser, Timothy J. EggemanOriginal AssigneeZeachem, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (89), Non-Patent Citations (61), Referenced by (271), Classifications (23), Legal Events (8) External Links: USPTO, USPTO Assignment, EspacenetProcess for producing ethanol
US 7351559 B2Abstract
The present application is a divisional of U.S. Pat. application Ser. No. 10/310,552, filed Dec. 4, 2002, entitled “PROCESS FOR PRODUCING ETHANOL,” now U.S. Pat. No. 6,927,048, which is a continuation of U.S. patent application Ser. No. 09/720,930, filed Dec. 29, 2000, entitled “PROCESS FOR PRODUCING ETHANOL”, now U.S. Pat. No. 6,509,180, which application is a 371 of PCT/US00/06498, filed Mar. 10, 2000, and which also claims priority to U.S. provisional application 60/124,276, filed Mar. 11, 1999, each of which is incorporated herein by reference in its entirety.
CO2 (g)+H2O->H2CO3 Ca(Ac)2+H2CO3->CaCO3 (s)+2HAc 2HAc+2EtOH->2EtAc The most volatile component in the reaction mixture is the ethyl acetate/water/ethanol azeotrope 436. The azeotrope composition is 82.6% ethyl acetate, 9% water and 8.4% ethanol and has a normal boiling point of 70.2° C. The azeotrope 436 is removed from the reaction mixture by vaporization along with some EtOH and water. The bottom product from the reaction zone is a water and ethanol solution containing the suspended CaCO3 flowing to the stripping section.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS1421605Apr 5, 1921Jul 4, 1922Us Ind Alcohol CoProcess for manufacturing estersUS2079414Aug 20, 1932May 4, 1937Du PontProcess for producing alcohols from esters of nonaromatic carboxylic acidsUS2565487Dec 27, 1948Aug 28, 1951Edward M FilachioneProduction of estersUS2782243Mar 29, 1954Feb 19, 1957Union Carbide & Carbon CorpHydrogenation of estersUS3678118Nov 24, 1967Jul 18, 1972Nat Distillers Chem CorpImproved process for preparing ethanolUS3686334Jan 13, 1969Aug 22, 1972Exxon Research Engineering CoDirect hydration of ethylene to ethanolUS3769329Mar 12, 1970Oct 30, 1973Monsanto CoProduction of carboxylic acids and estersUS3956482Apr 7, 1975May 11, 1976W. R. Grace & Co.Milk productionUS4055590Jun 22, 1976Oct 25, 1977Rohm GmbhMethod of making carboxylic acid estersUS4100189Jan 21, 1976Jul 11, 1978Rhone-Poulenc IndustriesRecovery of acetic acid from dilute aqueous solutions thereofUS4113662Apr 25, 1977Sep 12, 1978Chevron Research CompanyCatalyst for ester hydrogenationUS4134926Apr 18, 1977Jan 16, 1979The Lummus CompanyProduction of ethylene from ethanolUS4140799Mar 3, 1977Feb 20, 1979Jos. Schlitz Brewing CompanyMethod of fermenting brewer's wortUS4206036Aug 31, 1978Jun 3, 1980Hitachi, Ltd.Hydrodesulfurization of hydrocarbon oil with a catalyst including titanium oxideUS4275234May 31, 1973Jun 23, 1981Imi (Tami) Institute For Research And DevelopmentRecovery of acids from aqueous solutionsUS4282323Oct 9, 1979Aug 4, 1981E. I. Du Pont De Nemours And CompanyRemoval and concentration of lower molecular weight organic acids from dilute solutionsUS4359404Sep 29, 1981Nov 16, 1982Allied CorporationHydrogenation of esters using alkali doped heterogeneous Group VIII transition metal catalystsUS4370507Jan 8, 1982Jan 25, 1983Ethyl CorporationEthanol from methanol and synthesis gasUS4371619Jun 23, 1980Feb 1, 1983Union Carbide CorporationAcetic acid by fermentationUS4379028Mar 30, 1982Apr 5, 1983Lloyd BergSeparation of ethyl acetate from ethanol and water by extractive distillationUS4405717Oct 26, 1981Sep 20, 1983Cpc International Inc.Recovery of acetic acid from a fermentation brothUS4421939Oct 15, 1982Dec 20, 1983Union Carbide CorporationProduction of ethanol from acetic acidUS4431838Feb 8, 1982Feb 14, 1984National Distillers And Chemical CorporationExtractive distillation of alcohol-ester mixtures and transesterificationUS4435595Apr 26, 1982Mar 6, 1984Eastman Kodak CompanyReactive distillation process for the production of methyl acetateUS4444881Jun 27, 1983Apr 24, 1984Cpc International Inc.Recovery of organic acids from a fermentation brothUS4454358Jan 7, 1982Jun 12, 1984Basf AktiengesellschaftContinuous production of ethanol and plural stage distillation of the sameUS4497967Jun 15, 1984Feb 5, 1985The Halcon Sd Group, Inc.Process for the preparation of ethanol from methanol, carbon monoxide _and hydrogenUS4506012Mar 11, 1983Mar 19, 1985Cpc International Inc.Production of organic acids by a continuous fermentation processUS4513084Mar 11, 1983Apr 23, 1985Cpc International Inc.Mutant strain of Clostridium thermoaceticum useful for the preparation of acetic acidUS4517391May 20, 1983May 14, 1985Basf AktiengesellschaftContinuous preparation of ethanolUS4568644Aug 13, 1984Feb 4, 1986Massachusetts Institute Of TechnologyFermentation method producing ethanolUS4569726Jul 19, 1984Feb 11, 1986Lloyd BergProcess for the separation of ethyl acetate from ethanol and water by extractive distillationUS4636467Feb 1, 1985Jan 13, 1987Institute Of Gas TechnologyMixed microbial fermentation of carbonaceous matter to road de-icerUS4649112Oct 11, 1984Mar 10, 1987Cpc International Inc.Utilization of xylan and corn fiber for direct fermentation by clostridium acetobutylicumUS4652526Dec 8, 1983Mar 24, 1987The Curators Of The University Of MissouriEthanol-producing mutants of Clostridium thermosaccharolyticumUS4687668Nov 12, 1985Aug 18, 1987L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges ClaudeContinuous microbiological production of acetic acid and vinegarUS4690912Oct 14, 1983Sep 1, 1987Monsanto CompanyRhodium-containing carbonylation catalysts with halogen-containing promoterUS4698303Mar 27, 1986Oct 6, 1987Engenics, Inc.Production of lactic acid by continuous fermentation using an inexpensive raw material and a simplified method of lactic acid purificationUS4771001Sep 24, 1986Sep 13, 1988Neurex Corp.Production of lactic acid by continuous fermentation using an inexpensive raw material and a simplified method of lactic acid purificationUS4808526May 20, 1985Feb 28, 1989George Weston LimitedContinuous process for ethanol production by bacterial fermentationUS4830963Mar 20, 1985May 16, 1989Michigan Biotechnology InstituteProduction of acetic acid by an improved fermentation processUS4876196Jan 27, 1988Oct 24, 1989Vogelbusch Gesellschaft M.B.H.Method of continuously producing ethanol from sugar-containing substratesUS4935360Jun 1, 1987Jun 19, 1990Kernforschungsanlage Juelich GmbhProcess for the microbial anaerobic production of acetic acidUS4939294May 22, 1989Jul 3, 1990Eastman Kodak CompanyPreparation of ultra high purity methyl acetateUS4980164Sep 21, 1987Dec 25, 1990Bio Techniques Laboratories, Inc.Strains of lactobacillus for enhancing feed conversion efficiencyUS5028539Nov 21, 1988Jul 2, 1991The University Of FloridaEthanol production using engineered mutant E. coliUS5068188Jun 20, 1989Nov 26, 1991Northeastern UniversityProcess for manufacture of alkaline earth acetatesUS5071754Jan 23, 1990Dec 10, 1991Battelle Memorial InstituteProduction of esters of lactic acid, esters of acrylic acid, lactic acid, and acrylic acidUS5093121Feb 25, 1991Mar 3, 1992Ab MedipharmMethod for increasing the protein contents of milk in ruminantsUS5162214Apr 5, 1991Nov 10, 1992General Atomics International Services CorporationCma production utilizing acetate ion exchange from fermentation brothUS5173429Nov 9, 1990Dec 22, 1992The Board Of Trustees Of The University Of ArkansasClostridiumm ljungdahlii, an anaerobic ethanol and acetate producing microorganismUS5182199May 24, 1988Jan 26, 1993Hartley Brian SThermophilic ethanol production in a two-stage closed systemUS5210296Jun 20, 1991May 11, 1993E. I. Du Pont De Nemours And CompanyRecovery of lactate esters and lactic acid from fermentation brothUS5231017May 17, 1991Jul 27, 1993Solvay Enzymes, Inc.Process for producing ethanolUS5254465Oct 1, 1991Oct 19, 1993Northeastern UniversityProcess for manufacture of alkaline earth acetatesUS5308619Jul 7, 1992May 3, 1994Steigerwald Arzneimittelwerk GmbhPharmaceutical and its use for the treatment of states of agitation and nervous dysfunctionsUS5316928Jun 24, 1992May 31, 1994Regents Of The University Of MinnesotaDirect calcium magnesium acetate productionUS5453365Nov 16, 1994Sep 26, 1995Basf AktiengesellschaftPreparation of lactatesUS5510526Mar 8, 1994Apr 23, 1996Cargill, IncorporatedLactic acid production, separation and/or recovery processUS5591877May 3, 1995Jan 7, 1997Hoechst AgProcess for the recovery of fluorinated carboxylic acidsUS5599976Apr 7, 1995Feb 4, 1997Hoechst Celanese CorporationRecovery of acetic acid from dilute aqueous streams formed during a carbonylation processUS5681728Jun 7, 1995Oct 28, 1997Chronopol, Inc.Method and apparatus for the recovery and purification of organic acidsUS5693296Sep 6, 1994Dec 2, 1997The Texas A&M University SystemCalcium hydroxide pretreatment of biomassUS5750732May 19, 1995May 12, 1998Chronopol, Inc.Method to produce cyclic estersUS5753474Dec 20, 1996May 19, 1998Environmental Energy, Inc.Continuous two stage, dual path anaerobic fermentation of butanol and other organic solvents using two different strains of bacteriaUS5773653Jun 21, 1995Jun 30, 1998Innova S.A.Recovery of carboxylic acid from organic solution that contains an amine and and an extraction enhancerUS5780276May 16, 1995Jul 14, 1998Innova S.A.Recovery of carboxylic acid from organic solution that contains an amine and an extraction enhancerUS5865898Jul 27, 1993Feb 2, 1999The Texas A&M University SystemMethods of biomass pretreatmentUS5874263Jul 31, 1996Feb 23, 1999The Texas A&M University SystemMethod and apparatus for producing organic acidsUS5892102Jul 30, 1997Apr 6, 1999Mitsubishi Rayon Co., Ltd.Catalyst used in production of carboxylic acid esters and process for producing these estersUS5969189Jun 30, 1997Oct 19, 1999The Texas A&M University SystemThermal conversion of volatile fatty acid salts to ketonesUS5986133Jun 30, 1997Nov 16, 1999The Texas A&M University SystemRecovery of fermentation salts from dilute aqueous solutionsUS6043392Jun 30, 1997Mar 28, 2000Texas A&M University SystemMethod for conversion of biomass to chemicals and fuelsUS6368819Sep 7, 1999Apr 9, 2002Bioengineering Resources, Inc.Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation brothUS6509180Mar 10, 2000Jan 21, 2003Zeachem Inc.Process for producing ethanolUS6703227Feb 18, 2003Mar 9, 2004Renessen LlcMethod for producing fermentation-based products from high oil cornUS6740508Feb 18, 2003May 25, 2004Renessen LlcFermentation-based products from corn and methodUS7074603Oct 9, 2002Jul 11, 2006Zeachem, Inc.Process for producing ethanol from corn dry millingUS20030077771Dec 4, 2002Apr 24, 2003Zeachem, Inc.Process for producing ethanolUS20040168960Oct 31, 2003Sep 2, 2004The Texas A&M University SystemMethods and systems for pretreatment and processing of biomassUS20040171136Oct 31, 2003Sep 2, 2004Holtzapple Mark T.Methods and systems for pretreatment and processing of biomassUS20050256337Jan 28, 2005Nov 17, 2005Zeachem Inc.Recovery of organic acidsUS20060024801Jun 16, 2005Feb 2, 2006The Texas A & M University SystemMethods and systems for biomass conversion to carboxylic acids and alcoholsUS20060127999Jan 24, 2006Jun 15, 2006Zeachem Inc.Process for producing ethanol from corn dry millingUS20060188980Dec 9, 2005Aug 24, 2006Holtzapple Mark TSystem and method for processing biomassGB933714A Title not availableWO1982003854A1Apr 21, 1982Nov 11, 1982Bradley Michael WilliamProcess fo enolysis of carboxylic acid estersWO1983003409A1Mar 22, 1983Oct 13, 1983Bradley, Michael, WilliamProcess for the production of ethanolWO2000053791A1Mar 10, 2000Sep 14, 2000Dan VerserProcess for producing ethanolNon-Patent CitationsReference1"A Renewed Boost for Ethanol", Chemical Engineering, Feb. 1999, p. 35-39.2Agreda et al., Chem. Eng. Prog., "High Purity Methyl Acetate by Reactive Distillation", pp. 40-46, Feb. 1990.3Balasubramanian, N., Kim, J.S., Lee, Y.Y., "Fermentation of Xylose into Acetic Acid by Clostridium thermoaceticum", Appl Biochem and Biotech, vol. 91-93, p. 367-376, 2001.4Ben-Bassat et al., "Ethanol production by thermophilic bacteria: metabolic control of end product formation in Thermoanaerobium brockii", J. Bacteriol Apr. 1981, 146;1, p. 192-199 (Abstract only).5Bock, S.A., Fox, S.L., Gibbons. W.R., "Development of a Low-Cost, Industrially Suitable Medium for the Production of Acetic Acid from Clostridium thermoaceticum", Biotechnology and Applied Biochemistry, vol. 25, p. 117-125, 1997.6Borden, J.R., Lee, Y.Y., Yoon, H.H., "Simultaneous Saccharification and Fermentation of Cellulosic Biomass to Acetic Acid", Appl Biochem and Biotech, vol. 84-86, p. 963-970, 2000.7Brownell, J., Nakas, J., "Bioconversion of Acid-Hydrolyzed Poplar Hemicellulose to Acetic Acid by Clostridium thermoaceticum", J. Ind. Microbiol, vol. 7, p. 1-6, 1991.8Busche et al., Biotechnol. Bioeng. Symp., "Recovery of Acetic Acid from Dilute Acetate Solution", No. 12, pp. 249-262 (1982).9Busche, Robert M., Recovering Chemical Products from Dilute Fermentation Broths, Biotechnology and Bioengineering Symp. No. 13, 597-615 (1983).10Chang, V.S., Holtzapple, M.T., "Fundamental Factors Affecting Biomass Enzymatic Reactivity", Appl. Biochem. and Biotech., vol. 84-86, p. 5-37, 2000.11Daniel, S.L., Keith, E.S., Yang, H., Lin, Y.S., Drake, H.L., Utilization of Methoxylated Aromatic Compounds by the Acetogen Clostridium thermoaceticum: Expression and.12European Search Report for European Patent Application No. 07008768, mailed Jul. 3, 2007.13Examination Report for European Patent Application No. 00917888, mailed Nov. 23, 2006.14Examination Report for New Zealand Patent Application No. 514253, mailed Jan. 23, 2003.15Examination Report for New Zealand Patent Application No. 514253, mailed May 7, 2002.16Examiner's First Report for Australian Patent Application No. 2004200701, mailed Oct. 11, 2005.17Examiner's First Report for Australian Patent Application No. 38794/00, mailed Jul. 30, 2002.18Examiner's Report No. 2 for Australian Patent Application No. 38794/00, mailed Dec. 4, 2002.19Examiner's Report No. 2 for Australian Patent No. 2004200701, mailed Dec. 13, 2006.20Examiner's Report No. 3 for Australian Patent Application No. 2004200701, mailed Mar. 16, 2007.21Examiner's Report No. 3 for Australian Patent Application No. 38794/00, mailed Apr. 24, 2003.22Filachione et al., Preparation of Esters by Reaction of Ammonium Salts with Alcohols, 5265-5267 (Nov. 1951) [Presented in part at the 116th A.C.S. Meeting held in Atlantic City, N.J., Sept. 1949, and also at the Miniature meeting of the Philadelphia Section of the American Chemical Society held in Philadelphia, PA., in Jan. 1949.] .23First Office Action for Chinese Patent Application No. 00804895.9, issued Jul. 25, 2003.24Grohmann et al., Process Biochem., "Saccharification of Corn Fibre by Combined Treatment with Dilute Sulphuric Acid and Enzymes", vol. 32, No. 5, pp. 405-415 (1997).25Gulati et al. "Assessment of Ethanol Production Options For Corn Products", Bioresource Technology 58, 1996, p. 253-264.26Hull, S.R., Yang, B.Y., Venzke, D., Kulhavy, K., Montgomery, R., "Composition of Corn Steep Water During Steeping", J. Agric. Food Chem., vol. 44, p 1857-1863, 1996.27Husson et al., Regeneration of Lactic and Succinic Acid-Laden Basic Sorbents by Leaching with a Volatile Base in an Organic Solvent, Ind. Eng. Chem. Res. 37:2996-3005 (1998).28International Preliminary Examination Report for International (PCT) Patent Application No. PCT/US00/06498, mailed Nov. 6, 2000 (4232-1-PCT).29International Preliminary Examination Report for International (PCT) Patent Application No. PCT/US2005/003434, mailed Aug. 10, 2006.30International Search Report for International (PCT) Patent Application No. PCT/US00/06498, mailed Aug. 14, 2000 (4232-1-PCT).31Karnholz, A., Kusel, K., Grossner, A., Schramm, A., Drake, H.L., "Tolerance and Metabolic Response of Acetogenic Bacterial Toward Oxygen", Applied and Environmental Microbiology, vol. 68, No. 2, p. 1005-1009, 2002.32Leathers et al., "Saccharification of Corn Fiber Using Enzymes from Aureobasidium sp. Strain NRRL Y-231101", Applied Biochemistry and Biotechnology, vol. 59, 1996, p. 337-347.33Liden et al., Two amperometric biosensors as liquid chromatographic detectors for on-line monitoring of carbohydrate consumption and ethanol production in bioprocesses, 8th International Conference on Solid-State Sensors and Actuators and Eurosensors IX, Stockholm, Sweden, Jun. 1996, vol. 1:474-477.34Lovitt et al., "Ethanol production by thermophilic bacteria: biochemical basis for ethanol and hydrogen tolerance in Clostridium thermohydrosulfuricum" J Bacteriol Jun. 1988, 170:6, p. 2809-2815 (Abstract only).35Luedeking et al., J. Biochem. Microbiol. Tech. End., "A Kinetic Study of the Lactic Acid Fermentation; Batch Process at Controlled pH", Robert Luedeking & Edgar L. Piret, vol. 1, No. 1, pp. 393-412, 1959.36Lundie (Jr.), L.L., Drake, H.L, "Development of a Minimally Defined Medium for the Acetogen Clostridium thermoaceticum", J. of bacteriology, vol. 159, No. 2, p. 700-703, 1984.37Luo et al., "Kinetics of Simultaneous Saccharification and Lactic Acid Fermentation Processes", Biotechnol. Prog. 1997, 13, 762-767.38Matar et al. "Chemistry of Petrochemical Processes", Gulf Publishing Company, 1994, cover, contents, p. 162-163.39McCoy "Biomass Ethanol Inches Forward", C&EN, Dec. 7, 1998, p. 29-32.40Parekh et al., Acetate Production from Glucose by Clostridium thermoaceticum, Process Biochemistry International, 117-121 (Aug. 1990).41Reisinger et al., Extraction and Sorption of Acetic Acid of pH above pKa to Form Calcium Magnesium Acetate, Ind. Eng. Chem. Res., 34:845-852 (1995).42Richert et al., "Thermophilic Fermentation to Make Ethanol from Carbohydrate Byproducts", Genetic Engineering News, Oct. 1, 1998, 1 page.43Ricker et al., Solvent Extraction With Amines for Recovery of Acetic Acid From Dilute Aqueous Industrial Streams, J. Separ. Proc. Technol., 1(2):23-30 (1980).44Ricker et al., Solvent Properties of Organic Bases for Extraction of Acetic Acid From Water, J. Separ. Proc. Technol., 1:36-41 (1979).45Savage, M.D., Drake, H.L., "Adaptation of Acetogen Clostridium thermoautotropicum to Minimal Medium", Journal of Bacteriology, vol. 165, No. 1, p. 315-318, 1986.46Schwartz et al., Acetic Acid Production by Clostridium thermoaceticum in pH-Controlled Batch Fermentations at Acidic pH; Applied and Environmental Microbiology, 1385-1392 (Jun. 1982).47Schwartz, R.D., Keller Jr., F.A., "Isolation of a Strain of Clostridium thermoaceticum Capable of Growth and Acetic Acid Production at pH 4.5", Applied and Environmental Microbiology, vol. 43, No. 1, p. 117-123, 1982.48Search Report for International (PCT) Patent Application No. PCT/US2005/003434, mailed Apr. 26, 2005.49Second Office Action for Chinese Patent Application No. 00804895.9.50Supplementary Partial European Search Report for European Patent Application No. 00917888, mailed Feb. 23, 2004.51Supplementary Partial European Search Report for European Patent Application No. 00917888, mailed Nov. 20, 2006.52Tamada et al., Extraction of Carboxylic Acids with Amine Extractants. 3. Effect of Temperature, Water Coextraction, and Process Considerations, Ind. Eng. Chem. Res. 29:1333-1338 (1990).53Tang et al., Appl. Microbiol. Biotechnol., "Acetic Acid Production from Whey Lactose by the Co-Culture of Streptococcus lactis and Clostridium formicoaceticum", 28:138-143 (1988).54Wang et al., Biochem. Eng. Renewable Sources, "A Novel Route to the Production of Acetic Acid by Fermentation", No. 181, vol. 74, pp. 105-110 (1978).55Wardell et al., Solvent Equilibria for Extraction of Carboxylic Acids from Water, Journal of Chemical and Engineering Data, 23(2):144-148 (1978).56Witjitra, K., Shah, M.M., Cheryan, M., "Effect of Nutrient Sources on Growth and Acetate Production by Clostridium thermoaceticum", Enzyme and Microbial Technology, vol. 19, p. 322-327, 1996.57Written Opinion for International (PCT) Patent Application No. PCT/US2005/003434, mailed Apr. 26, 2005.58Xu et al., Canadian J. Chem. Eng., "Kinetics of Acetic Acid Esterification Over Ion Exchange Catalysts", vol. 74, pp. 493-400, Aug. 1996.59Yang et al., Biotechnol. Bioeng., "Kinetics and Mathematical Modeling of Homoacetic Fermentation of Lactate by Clostridium formicoacetium", vol. 32, pp. 797-802 (1988).60Zeikus et al., "Thermophilic Ethanol Fermentations", Basic Life Sci, 1981, vol. 18, p. 441-461 (Abstract only).61Zhicai et al., Esterification-Distillation of Butanol and Acetic Acid, Chemical Engineering Science, 53(11):2081-2088 (1998).Referenced byCiting PatentFiling datePublication dateApplicantTitleUS7682812Mar 19, 2008Mar 23, 2010Zeachem, Inc.Process for producing ethanolUS7888082Nov 26, 2008Feb 15, 2011Zeachem, Inc.Process for producing ethanol from corn dry millingUS7964379Jan 26, 2010Jun 21, 2011Zeachem, Inc.Process for producing ethanolUS8048655Aug 26, 2009Nov 1, 2011Zeachem, Inc.Recovery of organic acidsUS8080694Jun 30, 2011Dec 20, 2011Celanese International CorporationCatalyst for gas phase hydrogenation of carboxylic acids having a support modified with a reducible metal oxideUS8143444May 7, 2009Mar 27, 2012Zeachem, Inc.Recovery 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2009Verser Dan WProcess for producing ethanol from corn dry millingUS20090203098 *Feb 9, 2009Aug 13, 2009Zeachem, Inc.Indirect production of butanol and hexanolUS20090221725 *Aug 14, 2008Sep 3, 2009Enerkem, Inc.Production of ethanol from methanolUS20090238920 *Mar 20, 2009Sep 24, 2009Lewis Ted CProcess for making high grade protein productUS20090281354 *May 7, 2009Nov 12, 2009Zeachem, Inc.Recovery of organic acidsUS20100121114 *Oct 26, 2009May 13, 2010Heiko WeinerTunable catalyst gas phase hydrogenation of carboxylic acidsUS20100185021 *Dec 2, 2009Jul 22, 2010The Texas A&M University SystemAlternative paths to alcohols and hydrocarbons from biomassUS20100187472 *Aug 26, 2009Jul 29, 2010Zeachem, Inc.Recovery of organic acidsUS20100197486 *Feb 2, 2010Aug 5, 2010Celanese International CorporationCatalysts for making ethyl acetate from acetic acidUS20100197959 *Feb 2, 2010Aug 5, 2010Celanese International CorporationProcesses for making ethyl acetate from acetic acidUS20100197985 *Feb 2, 2010Aug 5, 2010Celanese International CorporationProcesses for making ethanol from acetic acidUS20100203359 *Feb 6, 2009Aug 12, 2010Ut-Battelle, LlcMicrobial fuel cell treatment of ethanol fermentation process waterUS20100273229 *Jan 26, 2010Oct 28, 2010Zeachem, Inc.Process for producing ethanolUS20110082322 *Oct 25, 2010Apr 7, 2011Radmila JevticProcess for Making Ethanol From Acetic Acid Using Acidic CatalystsUS20110098501 *Feb 2, 2010Apr 28, 2011Celanese International CorporationProcesses for making ethanol or ethyl acetate from acetic acid using bimetallic catalystsUS20110098513 *Aug 4, 2010Apr 28, 2011Celanese International CorporationProcess for making diethyl ether from acetic acidUS20110185628 *Sep 23, 2010Aug 4, 2011Celanese International CorporationProcesses for producing denatured ethanolUS20110185630 *Aug 6, 2010Aug 4, 2011Celanese International CorporationEthanol compositionsUS20110190117 *Feb 1, 2010Aug 4, 2011Celanese International CorporationProcesses for making tin-containing catalystsUS20110190531 *Jul 9, 2010Aug 4, 2011Celanese International CorporationProcess for producing an ethyl acetate solvent and co-production of ethanolUS20110190532 *Jul 9, 2010Aug 4, 2011Celanese International CorporationProcess for producing an ester feed stream for esters production and co-production of ethanolUS20110190547 *Aug 6, 2010Aug 4, 2011Celanese International CorporationProcess for recovering ethanolUS20110190548 *Aug 6, 2010Aug 4, 2011Celanese International CorporationProcess for purifying ethanolUS20110190549 *Aug 6, 2010Aug 4, 2011Celanese International CorporationProcess for producing a water stream from ethanol productionUS20110190550 *Oct 13, 2010Aug 4, 2011Celanese International CorporationProcesses for producing anhydrous ethanol compositionsUS20110190552 *Jan 6, 2011Aug 4, 2011Celanese International CorporationProcess for Heat Integration for Ethanol Production and Purification ProcessEP2447237A2Dec 2, 2009May 2, 2012The Texas A&M University SystemAlternative paths to alcohols and hydrocarbons from biomassEP2597077A2Dec 2, 2009May 29, 2013The Texas A&M University SystemAlternative paths to alcohols and hydrocarbons from biomassWO2008098254A2 *Feb 11, 2008Aug 14, 2008Zeachem, Inc.Energy efficient methods to procuce productsWO2008098254A3 *Feb 11, 2008Dec 18, 2008Zeachem IncEnergy efficient methods to procuce productsWO2010093832A2Feb 11, 2010Aug 19, 2010Xyleco, Inc.Saccharifying biomassWO2010093835A2Feb 11, 2010Aug 19, 2010Xyleco, Inc.Processing biomassWO2011046967A1Oct 12, 2010Apr 21, 2011Xyleco, Inc.Producing edible residues from ethanol productionWO2011140455A1May 6, 2011Nov 10, 2011Celanese International CorporationProcess for producing ethanolWO2011140457A1May 6, 2011Nov 10, 2011Celanese International CorporationProcess for recovering ethanol produced by hydrogenating acetic acid comprising waterWO2011140460A2May 6, 2011Nov 10, 2011Celanese International CorporationAlcohol production process integrating acetic acid feed stream comprising water from carbonylation processWO2011140465A1May 6, 2011Nov 10, 2011Celanese International CorporationProcess for purifying ethanolWO2011140468A2May 6, 2011Nov 10, 2011Celanese International CorporationProcess for recycling gas from acetic acid hydrogenationWO2011140477A2May 6, 2011Nov 10, 2011Celanese International CorporationProcess for separating acetaldehyde from ethanol-containing mixturesWO2011140485A1May 6, 2011Nov 10, 2011Celanese International CorporationProcess for recovering ethanol in a side draw distillation column to regulate c3+ alcohols concentrationsWO2012006217A2Jun 30, 2011Jan 12, 2012Celanese International CorporationEsterification of vapor crude product in the production of alcoholsWO2012006219A2Jun 30, 2011Jan 12, 2012Celanese International CorporationLiquid esterification for the production of alcoholsWO2012006228A1Jul 1, 2011Jan 12, 2012Celanese International CorporationReduced energy alcohol separation processWO2012006229A2Jul 1, 2011Jan 12, 2012Celanese International CorporationSeparation of vapor crude alcohol productWO2012006236A1Jul 1, 2011Jan 12, 2012Celanese International CorporationWeak acid recovery system for ethanol separation processesWO2012006388A1Jul 7, 2011Jan 12, 2012Celanese International CorporationAlcohol recovery processes using membranesWO2012006438A2Jul 7, 2011Jan 12, 2012Celanese International CorporationHydrogenolysis of ethyl acetate in alcohol separation processesWO2012006499A2Jul 8, 2011Jan 12, 2012Celanese International CorporationFinishing reactor for purifying ethanolWO2012018961A2Aug 3, 2011Feb 9, 2012Celanese International CorporationProcess for purifying ethanolWO2012039839A1Aug 3, 2011Mar 29, 2012Celanese International CorporationProduction of alcoholsWO2012067678A1Jul 11, 2011May 24, 2012B&J Rocket America, Inc.Air cooled spacer for multi-blade abrading wheelWO2012148434A1Aug 3, 2011Nov 1, 2012Celanese International CorporationProcess for removing aldehydes from ethanol reaction mixtureWO2012148456A1Nov 9, 2011Nov 1, 2012Celanese International CorporationWater separation from crude ethanolWO2012148457A1Nov 9, 2011Nov 1, 2012Celanese International CorporationProcess for reducing the concentration of acetic acid in a crude alcohol productWO2012148458A1Nov 9, 2011Nov 1, 2012Celanese International CorporationProcess to recover alcohol from an acidic residue streamWO2012148459A1Nov 9, 2011Nov 1, 2012Celanese International CorporationProcess for removing water from ethanol mixturesWO2012148460A1Nov 9, 2011Nov 1, 2012Celanese International CorporationProduction process of ethanol via reduction of acetic acid and distillationWO2012148461A1Nov 9, 2011Nov 1, 2012Celanese International CorporationRemoving water from an acetic acid waste stream in the production of alcoholsWO2012148462A1Nov 9, 2011Nov 1, 2012Celanese International CorporationIntegrated process for producing acetic acid and alcoholWO2012148463A1Nov 9, 2011Nov 1, 2012Celanese International CorporationProcess to recover alcohol from an ethyl acetate residue streamWO2012148464A1Nov 9, 2011Nov 1, 2012Celanese International CorporationWater control in alcohol production from hydrogenationWO2012148465A1Nov 9, 2011Nov 1, 2012Celanese International CorporationRecovering ethanol with sidestreams to regulate c3+ alcohols concentrationsWO2012148510A1Jan 11, 2012Nov 1, 2012Celanese International CorporationProcess for producing ethanol using multiple beds each having different catalystsWO2012149137A1Apr 26, 2012Nov 1, 2012Celanese International CorporationProcess for the production of ethanol from an acetic acid feed and a recycled ethyl acetate feedWO2012173646A1Nov 9, 2011Dec 20, 2012Celanese International CorporationDistillation of crude alcohol product using entrainerWO2012173647A1Nov 9, 2011Dec 20, 2012Celanese International CorporationExtractive distillation of crude alcohol productWO2013019229A1Aug 3, 2011Feb 7, 2013Celanese International CorporationReducing impurities in ethanol in hydrogenation processes with multiple reaction zonesWO2013019230A1Aug 3, 2011Feb 7, 2013Celanese International CorporationProcess for separating ethanol having low acidWO2013019231A1Aug 3, 2011Feb 7, 2013Celanese International CorporationVapor separation in ethanol productionWO2013019232A1Aug 3, 2011Feb 7, 2013Celanese International CorporationReducing acetals during ethanol separation processWO2013019233A1Aug 3, 2011Feb 7, 2013Celanese International CorporationProcess for producing anhydrous ethanol using extractive distillation columnWO2013019234A1Aug 3, 2011Feb 7, 2013Celanese International CorporationProcesses for improving ethanol production via hydrolysis of ester contaminantsWO2013019235A1Aug 3, 2011Feb 7, 2013Celanese International CorporationProcess for purifying a crude ethanol productWO2013019236A1Aug 3, 2011Feb 7, 2013Celanese International CorporationProcess for recovering ethanol in a side draw distillation columnWO2013019237A1Aug 3, 2011Feb 7, 2013Celanese 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