Patents by Inventor Dan W. Verser
Dan W. Verser 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).
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Publication number: 20150203432Abstract: The invention includes a method for recovering an organic acid from a dilute salt solution of the acid, wherein the cation of the salt forms a carbonate salt. The method includes concentrating the solution and combining a tertiary amine, CO2, and a solvent with the solution to form a reaction product medium, an acid/amine complex and a carbonate salt. The acid/amine complex is soluble and the carbonate salt is insoluble in the reaction product medium.Type: ApplicationFiled: April 22, 2013Publication date: July 23, 2015Inventors: Gal Mariansky, Eric Gallegos-West-Ling, Dan W. Verser, Timothy J. Eggeman, Jesse Coutu
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Publication number: 20140148615Abstract: A method is disclosed for the recovery of an organic acid from a dilute salt solution in which the cation of the salt forms an insoluble carbonate salt. An amine, C02 and a water immiscible solvent are introduced to the solution to form the insoluble carbonate salt and a complex between the acid and the amine that is soluble in both an aqueous and a solvent phase. The complex is extracted into the solvent phase which is than distilled to recover the acid or an ester of the acid in a concentrated form.Type: ApplicationFiled: October 17, 2011Publication date: May 29, 2014Applicant: ZEACHEM, INC.Inventors: Dan W. Verser, Gal Mariansky, Kevin Carlin, Erik Gallegos-Westling, Jesse James Coutu, Timothy J. Eggeman
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Publication number: 20130189752Abstract: The invention relates to processes that efficiently convert carbon-containing materials, such as biomass, into products in such a manner that the energy, carbon, and mass content of the materials are efficiently transferred into such products. Such methods include converting the materials into at least one intermediate by a biological conversion process and at least one intermediate by a thermochemical conversion process and reacting the intermediates to form the product. Such methods have a chemical energy efficiency to produce the product that is greater than the chemical energy efficiency of a solely biological conversion process to produce the product and that is greater than the chemical energy efficiency of a process in which all of the material is initially subjected to a thermochemical conversion step as part of the process to produce the product.Type: ApplicationFiled: November 8, 2012Publication date: July 25, 2013Applicant: ZeaChem, Inc.Inventors: Dan W. Verser, Timothy J. Eggeman
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Publication number: 20120322118Abstract: A process for the conversion of carbohydrates from any of a number of sources into butanol and hexanol for fuel or chemical use is disclosed. The process includes conducting a homoacetogenic fermentation to produce an acetic acid intermediate which is chemically converted to ethanol. The ethanol and a remaining portion of the acetic acid intermediate are used as a substrate in an acidogenic fermentation to produce butyric and caproic acid intermediates which are then chemically converted to butanol and hexanol.Type: ApplicationFiled: July 24, 2012Publication date: December 20, 2012Applicant: ZEACHEM, INC.Inventor: Dan W. Verser
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Patent number: 8329436Abstract: The invention relates to processes that efficiently convert carbon-containing materials, such as biomass, into products in such a manner that the energy, carbon, and mass content of the materials are efficiently transferred into such products. Such methods include converting the materials into at least one intermediate by a biological conversion process and at least one intermediate by a thermochemical conversion process and reacting the intermediates to form the product. Such methods have a chemical energy efficiency to produce the product that is greater than the chemical energy efficiency of a solely biological conversion process to produce the product and that is greater than the chemical energy efficiency of a process in which all of the material is initially subjected to a thermochemical conversion step as part of the process to produce the product.Type: GrantFiled: February 11, 2008Date of Patent: December 11, 2012Assignee: Zeachem, Inc.Inventors: Dan W. Verser, Timothy J. Eggeman
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Patent number: 8252567Abstract: A process for the conversion of carbohydrates from any of a number of sources into butanol and hexanol for fuel or chemical use is disclosed. The process includes conducting a homoacetogenic fermentation to produce an acetic acid intermediate which is chemically converted to ethanol. The ethanol and a remaining portion of the acetic acid intermediate are used as a substrate in an acidogenic fermentation to produce butyric and caproic acid intermediates which are then chemically converted to butanol and hexanol.Type: GrantFiled: February 9, 2009Date of Patent: August 28, 2012Assignee: ZeaChem, Inc.Inventor: Dan W. Verser
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Publication number: 20120112127Abstract: A method is disclosed for the recovery of an organic acid from a dilute salt solution in which the cation of the salt forms an insoluble carbonate salt. A tertiary amine and CO2 are introduced to the solution to form the insoluble carbonate salt and a complex between the acid and an amine. A water immiscible solvent, such as an alcohol, is added to extract the acid/amine complex from the dilute salt solution to a reaction phase. The reaction phase is continuously dried and a product between the acid and the solvent, such as an ester, is formed.Type: ApplicationFiled: November 1, 2011Publication date: May 10, 2012Applicant: ZeaChem, Inc.Inventors: Dan W. Verser, Timothy J. Eggeman
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Patent number: 8143444Abstract: A method is disclosed for the recovery of an organic acid from a dilute salt solution in which the cation of the salt forms an insoluble carbonate salt. An amine and CO2 are introduced to the solution to form the insoluble carbonate salt and a complex between the acid and the amine. The acid/amine complex is thermally dissociated, or “cracked”, in the presence of a water immiscible solvent in which the amine is selectively soluble and in which the acid is not appreciably soluble. The organic acid may then be recovered from the water by any suitable means such as distillation, reactive distillation, extraction, or reactive extraction.Type: GrantFiled: May 7, 2009Date of Patent: March 27, 2012Assignee: ZeaChem, Inc.Inventors: Gal Mariansky, Kevin Carlin, Dan W. Verser
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Patent number: 8048655Abstract: A method is disclosed for the recovery of an organic acid from a dilute salt solution in which the cation of the salt forms an insoluble carbonate salt. A tertiary amine and CO2 are introduced to the solution to form the insoluble carbonate salt and a complex between the acid and an amine. A water immiscible solvent, such as an alcohol, is added to extract the acid/amine complex from the dilute salt solution to a reaction phase. The reaction phase is continuously dried and a product between the acid and the solvent, such as an ester, is formed.Type: GrantFiled: August 26, 2009Date of Patent: November 1, 2011Assignee: ZeaChem, Inc.Inventors: Dan W. Verser, Timothy J. Eggeman
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Patent number: 7888082Abstract: A process for producing ethanol by the conversion of carbohydrates from a corn dry milling process in which the bottoms fraction from distillation of ethanol in a conventional yeast fermentation is used in a process including a combination of biochemical and synthetic conversions. The process results in high yield ethanol production with concurrent production of high value coproducts. An acetic acid intermediate is produced from bottoms fraction, followed by conversion of the acetic acid into ethanol using esterification and hydrogenation reactions. Coproducts of the process include a high protein content solids fraction produced in the fermentation.Type: GrantFiled: November 26, 2008Date of Patent: February 15, 2011Assignee: Zeachem, Inc.Inventors: Dan W. Verser, Timothy J. Eggeman
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Publication number: 20100187472Abstract: A method is disclosed for the recovery of an organic acid from a dilute salt solution in which the cation of the salt forms an insoluble carbonate salt. A tertiary amine and CO2 are introduced to the solution to form the insoluble carbonate salt and a complex between the acid and an amine. A water immiscible solvent, such as an alcohol, is added to extract the acid/amine complex from the dilute salt solution to a reaction phase. The reaction phase is continuously dried and a product between the acid and the solvent, such as an ester, is formed.Type: ApplicationFiled: August 26, 2009Publication date: July 29, 2010Applicant: ZeaChem, Inc.Inventors: Dan W. Verser, Timothy J. Eggeman
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Patent number: 7601865Abstract: A method is disclosed for the recovery of an organic acid from a dilute salt solution in which the cation of the salt forms an insoluble carbonate salt. A tertiary amine and CO2 are introduced to the solution to form the insoluble carbonate salt and a complex between the acid and an amine. A water immiscible solvent, such as an alcohol, is added to extract the acid/amine complex from the dilute salt solution to a reaction phase. The reaction phase is continuously dried and a product between the acid and the solvent, such as an ester, is formed.Type: GrantFiled: January 28, 2005Date of Patent: October 13, 2009Assignee: ZeaChem, Inc.Inventors: Dan W. Verser, Timothy J. Eggeman
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Publication number: 20090203098Abstract: A process for the conversion of carbohydrates from any of a number of sources into butanol and hexanol for fuel or chemical use is disclosed. The process includes conducting a homoacetogenic fermentation to produce an acetic acid intermediate which is chemically converted to ethanol. The ethanol and a remaining portion of the acetic acid intermediate are used as a substrate in an acidogenic fermentation to produce butyric and caproic acid intermediates which are then chemically converted to butanol and hexanol.Type: ApplicationFiled: February 9, 2009Publication date: August 13, 2009Applicant: ZEACHEM, INC.Inventor: Dan W. Verser
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Publication number: 20090081749Abstract: A process for producing ethanol by the conversion of carbohydrates from a corn dry milling process in which the bottoms fraction from distillation of ethanol in a conventional yeast fermentation is used in a process including a combination of biochemical and synthetic conversions. The process results in high yield ethanol production with concurrent production of high value coproducts. An acetic acid intermediate is produced from bottoms fraction, followed by conversion of the acetic acid into ethanol using esterification and hydrogenation reactions. Coproducts of the process include a high protein content solids fraction produced in the fermentation.Type: ApplicationFiled: November 26, 2008Publication date: March 26, 2009Inventors: Dan W. Verser, Timothy J. Eggeman
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Patent number: 7507562Abstract: A process for producing ethanol by the conversion of carbohydrates from a corn dry milling process in which the bottoms fraction from distillation of ethanol in a conventional yeast fermentation is used in a process including a combination of biochemical and synthetic conversions. The process results in high yield ethanol production with concurrent production of high value coproducts. An acetic acid intermediate is produced from bottoms fraction, followed by conversion of the acetic acid into ethanol using esterification and hydrogenation reactions. Coproducts of the process include a high protein content solids fraction produced in the fermentation.Type: GrantFiled: January 24, 2006Date of Patent: March 24, 2009Assignee: ZeaChem, Inc.Inventors: Dan W. Verser, Timothy J. Eggeman
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Publication number: 20080193989Abstract: The invention relates to processes that efficiently convert carbon-containing materials, such as biomass, into products in such a manner that the energy, carbon, and mass content of the materials are efficiently transferred into such products. Such methods include converting the materials into at least one intermediate by a biological conversion process and at least one intermediate by a thermochemical conversion process and reacting the intermediates to form the product. Such methods have a chemical energy efficiency to produce the product that is greater than the chemical energy efficiency of a solely biological conversion process to produce the product and that is greater than the chemical energy efficiency of a process in which all of the material is initially subjected to a thermochemical conversion step as part of the process to produce the product.Type: ApplicationFiled: February 11, 2008Publication date: August 14, 2008Applicant: ZEACHEM, INC.Inventors: Dan W. Verser, Timothy J. Eggeman
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Patent number: 7074603Abstract: A process for producing ethanol by the conversion of carbohydrates from a corn dry milling process in which the bottoms fraction from distillation of ethanol in a conventional yeast fermentation is used in a process including a combination of biochemical and synthetic conversions. The process results in high yield ethanol production with concurrent production of high value coproducts. An acetic acid intermediate is produced from bottoms fraction, followed by conversion of the acetic acid into ethanol using esterification and hydrogenation reactions. Coproducts of the process include a high protein content solids fraction produced in the fermentation.Type: GrantFiled: October 9, 2002Date of Patent: July 11, 2006Assignee: Zeachem, Inc.Inventors: Dan W. Verser, Timothy J. Eggeman
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Publication number: 20030104587Abstract: A process for producing ethanol by the conversion of carbohydrates from a corn dry milling process in which the bottoms fraction from distillation of ethanol in a conventional yeast fermentation is used in a process including a combination of biochemical and synthetic conversions. The process results in high yield ethanol production with concurrent production of high value coproducts. An acetic acid intermediate is produced from bottoms fraction, followed by conversion of the acetic acid into ethanol using esterification and hydrogenation reactions. Coproducts of the process include a high protein content solids fraction produced in the fermentation.Type: ApplicationFiled: October 9, 2002Publication date: June 5, 2003Inventors: Dan W. Verser, Timothy J. Eggeman
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Patent number: 6025458Abstract: Disclosed are degradable materials including molded products, laminates, foams, nonwoven materials, adhesives, coatings and films, and particularly packaging films. The materials are made using polydioxaneone polymers comprising at least two different dioxaneone-based repeating units. Preferred polymers are polydioxanediones. First repeating units have less carbon atoms in constituent groups extending from the polymer backbone than second repeating units. Physical characteristics and degradation of the materials can be varied by varying the choice and/or relative proportions of first and second repeating units in the polydioxaneone polymers. Methods for preparing polydioxaneone polymers that can be used in the manufacture of the materials are also discussed, as are suitable monomers and methods for preparing such monomers.Type: GrantFiled: June 15, 1998Date of Patent: February 15, 2000Assignee: Chronopol, Inc.Inventors: Edward S. Lipinsky, Richard G. Sinclair, James D. Browning, Alex Cheung, Kevin H. Schilling, Dan W. Verser
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Patent number: 5801223Abstract: Disclosed are degradable materials including molded products, laminates, foams, nonwoven materials, adhesives, coatings and films, and particularly packaging films. The materials are made using polydioxaneone polymers comprising at least two different dioxaneone-based repeating units. Preferred polymers are polydioxanediones. First repeating units have less carbon atoms in constituent groups extending from the polymer backbone than second repeating units. Physical characteristics and degradation of the materials can be varied by varying the choice and/or relative proportions of first and second repeating units in the polydioxaneone polymers. Methods for preparing polydioxaneone polymers that can be used in the manufacture of the materials are also discussed, as are suitable monomers and methods for preparing such monomers.Type: GrantFiled: June 1, 1995Date of Patent: September 1, 1998Inventors: Edward S. Lipinsky, Richard G. Sinclair, James D. Browning, Alex Cheung, Kevin H. Schilling, Dan W. Verser