Patents by Inventor Eric L. Dias

Eric L. Dias 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: 9434709
    Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a glucose source to an adipic acid product. The present invention includes processes for the conversion of glucose to an adipic acid product via glucaric acid or derivatives thereof. The present invention also includes processes comprising catalytic oxidation of glucose to glucaric acid or derivative thereof and processes comprising the catalytic hydrodeoxygenation of glucaric acid or derivatives thereof to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: September 6, 2016
    Assignee: Rennovia Inc.
    Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy, James Shoemaker, Raymond Archer, Hong Jiang
  • Publication number: 20160200646
    Abstract: Processes are disclosed for the conversion of adipic acid to 1,6-hexanediol employing a chemocatalytic reaction in which an adipic acid substrate is reacted with hydrogen in the presence of particular heterogeneous catalysts including a first metal and a second metal on a support. The adipic acid substrate includes adipic acid, mono-esters of adipic acid, di-esters of adipic acid, and salts thereof. The first metal is selected form the group of Pt, Rh and mixtures thereof and the second metal is selected from the group of Mo, W, Re and mixtures thereof.
    Type: Application
    Filed: August 22, 2014
    Publication date: July 14, 2016
    Applicant: Rennovia Inc.
    Inventors: Vincent J. Murphy, Eric L. Dias, James A.W. Shoemaker
  • Publication number: 20160194298
    Abstract: Industrial scale conversions of 5-hydroxymethylfurfural to commodity chemicals such as 1,2,6-hexanetriol and 1,6-hexanediol by chemocatalytic conversions using hydrogen and a heterogeneous reduction catalyst are provided. The reactions are suitable for use in continuous flow reactors. Methods of carrying out the conversions are provided, as are product and catalyst compositions.
    Type: Application
    Filed: December 2, 2015
    Publication date: July 7, 2016
    Inventors: Valery SOKOLOVSKII, Mayya LAVRENKO, Alfred HAGEMEYER, Eric L. DIAS, James A. W. SHOEMAKER, Vincent J. MURPHY
  • Publication number: 20160090346
    Abstract: Processes for separating a di-carboxylic acid or salt thereof from a mixture containing the di-carboxylic acid or salt thereof and one or more other components are provided. Also separation media useful for these separation processes is provided. In particular, processes for preparing an aldaric acid are described, such as glucaric acid from glucose, which includes separating the aldaric acid from the reaction product. Also, various glucaric acid products are described.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 31, 2016
    Applicant: Rennovia Inc.
    Inventors: Gary M. Diamond, Eric L. Dias, Raymond Archer, Vincent J. Murphy, Thomas R. Boussie
  • Publication number: 20160074835
    Abstract: Processes are disclosed for the conversion of 1,6-hexanediol to adipic acid employing a chemocatalytic reaction in which 1,6-hexanediol is reacted with oxygen in the presence of particular heterogeneous catalysts including at least one of platinum or gold. The metals are preferably provided on a support selected from the group of titania, stabilized titania, zirconia, stabilized zirconia, silica or mixtures thereof, most preferably zirconia stabilized with tungsten. The reaction with oxygen is carried out at a temperature from about 100° C. to about 300° C. and at a partial pressure of oxygen from about 50 psig to about 2000 psig.
    Type: Application
    Filed: April 20, 2015
    Publication date: March 17, 2016
    Inventors: Eric L. DIAS, Vincent J. MURPHY, James A.W. SHOEMAKER
  • Publication number: 20160075676
    Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a glucose source to an adipic acid product. The present invention includes processes for the conversion of glucose to an adipic acid product via glucaric acid or derivatives thereof. The present invention also includes processes comprising catalytic oxidation of glucose to glucaric acid or derivative thereof and processes comprising the catalytic hydrodeoxygenation of glucaric acid or derivatives thereof to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 17, 2016
    Applicant: RENNOVIA INC.
    Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy, James Shoemaker, Raymond Archer, Hong Jiang
  • Publication number: 20160068469
    Abstract: Processes are disclosed for the conversion of a carbohydrate source to hexamethylenediamine (HMDA) and to intermediates useful for the production of hexamethylenediamine and other industrial chemicals. HMDA is produced by direct reduction of a furfural substrate to 1,6-hexanediol in the presence of hydrogen and a heterogeneous reduction catalyst comprising Pt or by indirect reduction of a furfural substrate to 1,6-hexanediol wherein 1,2,6-hexanetriol is produced by reduction of the furfural substrate in the presence of hydrogen and a catalyst comprising Pt and 1,2,6-hexanediol is then converted by hydrogenation in the presence of a catalyst comprising Pt to 1,6 hexanediol, each process then proceding to the production of HMDA by known routes, such as amination of the 1,6 hexanediol. Catalysts useful for the direct and indirect production of 1,6-hexanediol are also disclosed.
    Type: Application
    Filed: April 15, 2015
    Publication date: March 10, 2016
    Inventors: Eric L. DIAS, James A. W. SHOEMAKER, Thomas R. BOUSSIE, Vincent J. MURPHY
  • Publication number: 20160068470
    Abstract: Processes are disclosed for the conversion of a carbohydrate source to hexamethylenediamine (HMDA) and to intermediates useful for the production of hexamethylenediamine and other industrial chemicals. HMDA is produced by direct reduction of a furfural substrate to 1,6-hexanediol in the presence of hydrogen and a heterogeneous reduction catalyst comprising Pt or by indirect reduction of a furfural substrate to 1,6-hexanediol wherein 1,2,6-hexanetriol is produced by reduction of the furfural substrate in the presence of hydrogen and a catalyst comprising Pt and 1,2,6-hexanediol is then converted by hydrogenation in the presence of a catalyst comprising Pt to 1,6 hexanediol, each process then proceeding to the production of HMDA by known routes, such as amination of the 1,6 hexanediol. Catalysts useful for the direct and indirect production of 1,6-hexanediol are also disclosed.
    Type: Application
    Filed: April 15, 2015
    Publication date: March 10, 2016
    Inventors: Eric L. DIAS, James A. W. SHOEMAKER, Thomas R. BOUSSIE, Vincent J. MURPHY
  • Patent number: 9216937
    Abstract: The present disclosure relates generally to water concentration reduction processes within an adipic acid process. The present invention also includes process for converting a glucose-containing feed derived from a carbohydrate source to an adipic acid product wherein the process includes the steps of: converting glucose in the feed to a reaction product including a hydrodeoxygenation substrate and a first concentration of water; reducing the concentration of water in the reaction product to produce a feedstock including the hydrodeoxygenation substrate and second concentration of water, wherein the second concentration of water is less than the first concentration of water; and converting at least a portion of the hydrodeoxygenation substrate in the feedstock to an adipic acid product. Processes are also disclosed for producing hexamethylene diamine and caprolactam from the adipic acid product.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: December 22, 2015
    Assignee: Rennovia Inc.
    Inventors: Raymond Archer, Gary M. Diamond, Eric L. Dias, Vincent J. Murphy, Miroslav Petro, John D. Super
  • Publication number: 20150321187
    Abstract: Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.
    Type: Application
    Filed: April 29, 2015
    Publication date: November 12, 2015
    Applicant: RENNOVIA INC.
    Inventors: Eric L. Dias, Alfred Hagemeyer, Hong X. Jiang, James Longmire, James A.W. Shoemaker, Valery Sokolovskii, Guang Zhu, Vincent J. Murphy, Gary M. Diamond
  • Patent number: 9181194
    Abstract: The present invention generally relates to processes for the conversion of glucose to caprolactam employing chemocatalytic oxidation and reduction reactions. The present invention also includes processes for the conversion of glucose to caprolactam via amido polyhydroxy acid products and amidocaproic acid or derivatives thereof. The present invention also includes processes that catalytically oxidize an amidopolyol to amidopolyhydroxy acid or derivatives thereof, and processes that catalytically hydrodeoxygenate amino or amido polyhydroxy acid or derivatives thereof to an amino or amidocaproic acid product. The amino or amidocaproic acid product may then be converted to caprolactam. The present invention also includes products produced by such processes and products producable from such products.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: November 10, 2015
    Assignee: Rennovia Inc.
    Inventors: Vincent J. Murphy, Eric L. Dias, James A. W. Shoemaker, Thomas R. Boussie, Zachary M. Fresco
  • Patent number: 9174911
    Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a pentose source to a glutaric acid product. The present invention includes processes for the conversion of pentose to a glutaric acid product via pentaric acid or derivatives thereof. The present invention also includes processes comprising the catalytic oxidation of pentose to pentaric acid and catalytic hydrodeoxygenation of pentaric acid or derivatives thereof to a glutaric acid product.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: November 3, 2015
    Assignee: Rennovia Inc.
    Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
  • Patent number: 9156766
    Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a glucose source to an adipic acid product. The present invention includes processes for the conversion of glucose to an adipic acid product via glucaric acid or derivatives thereof. The present invention also includes processes comprising catalytic oxidation of glucose to glucaric acid or derivative thereof and processes comprising the catalytic hydrodeoxygenation of glucaric acid or derivatives thereof to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: October 13, 2015
    Assignee: Rennovia Inc.
    Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy, James Shoemaker, Raymond Archer, Hong Jiang
  • Publication number: 20150210661
    Abstract: The present invention relates generally to processes for converting fructose-containing feedstocks to a product comprising 5-(hydroxymethyl)furfural (HMF) and water in the presence of water, solvent and an acid catalyst. In some embodiments, the conversion of fructose to HMF is controlled at a partial conversion endpoint characterized by a yield of HMF from fructose that does not exceed about 80 mol %. In these and other embodiments, the processes provide separation techniques for separating and recovering the product, unconverted fructose, solvent and acid catalyst to enable the effective recovery and reutilization of reaction components.
    Type: Application
    Filed: January 27, 2015
    Publication date: July 30, 2015
    Applicant: Rennovia, Inc.
    Inventors: Thomas R. Boussie, Eric L. Dias, Vincent J. Murphy, James A.W. Shoemaker
  • Patent number: 9035094
    Abstract: Processes are disclosed for the conversion of 1,6-hexanediol to adipic acid employing a chemocatalytic reaction in which 1,6-hexanediol is reacted with oxygen in the presence of particular heterogeneous catalysts including at least one of platinum or gold. The metals are preferably provided on a support selected from the group of titania, stabilized titania, zirconia, stabilized zirconia, silica or mixtures thereof, most preferably zirconia stabilized with tungsten. The reaction with oxygen is carried out at a temperature from about 100° C. to about 300° C. and at a partial pressure of oxygen from about 50 psig to about 2000 psig.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: May 19, 2015
    Assignee: Rennovia, Inc.
    Inventors: Eric L. Dias, Vincent J. Murphy, James A. W. Shoemaker
  • Patent number: 9035109
    Abstract: Processes are disclosed for the conversion of a carbohydrate source to hexamethylenediamine (HMDA) and to intermediates useful for the production of hexamethylenediamine and other industrial chemicals. HMDA is produced by direct reduction of a furfural substrate to 1,6-hexanediol in the presence of hydrogen and a heterogeneous reduction catalyst comprising Pt or by indirect reduction of a furfural substrate to 1,6-hexanediol wherein 1,2,6-hexanetriol is produced by reduction of the furfural substrate in the presence of hydrogen and a catalyst comprising Pt and 1,2,6-hexanediol is then converted by hydrogenation in the presence of a catalyst comprising Pt to 1,6 hexanediol, each process then proceeding to the production of HMDA by known routes, such as amination of the 1,6 hexanediol. Catalysts useful for the direct and indirect production of 1,6-hexanediol are also disclosed.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: May 19, 2015
    Assignee: Rennovia, Inc.
    Inventors: Eric L. Dias, James A. W. Shoemaker, Thomas R. Boussie, Vincent J. Murphy
  • Patent number: 8946411
    Abstract: Processes are disclosed for the conversion of adipic acid to caprolactam employing a chemocatalytic reaction in which an adipic acid substrate is reacted with ammonia and hydrogen, in the presence of particular heterogeneous catalysts and employing unique solvents. The present invention also enables the conversion of other adipic acid substrates, such as mono-esters of adipic acid, di-esters of adipic acid, mono-amides of adipic acid, di-amides of adipic acid, and salts thereof to caprolactam. Solvents useful in the process that do not react with ammonia are also disclosed. Catalyst supports are disclosed which catalyze the reaction of the substrate with ammonia in the absence of added metal. Metals on the catalyst supports comprise ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and/or platinum (Pt). Heterogeneous catalysts comprising ruthenium (Ru) and rhenium (Re) on titania and/or zirconia supports are also disclosed.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: February 3, 2015
    Assignee: Rennovia, Inc.
    Inventors: Eric L. Dias, Vincent J. Murphy, James Longmire, Hong Jiang
  • Patent number: 8927768
    Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a carbohydrate source to an adipic acid product. The present invention includes processes for the conversion of a carbohydrate source to an adipic acid product via a furanic substrate, such as 2,5-furandicarboxylic acid or derivatives thereof. The present invention also includes processes for producing an adipic acid product comprising the catalytic hydrogenation of a furanic substrate to produce a tetrahydrofuranic substrate and the catalytic hydrodeoxygenation of at least a portion of the tetrahydrofuranic substrate to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: January 6, 2015
    Assignee: Rennovia, Inc.
    Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
  • Publication number: 20140350297
    Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a pentose source to a glutaric acid product. The present invention includes processes for the conversion of pentose to a glutaric acid product via pentaric acid or derivatives thereof. The present invention also includes processes comprising the catalytic oxidation of pentose to pentaric acid and catalytic hydrodeoxygenation of pentaric acid or derivatives thereof to a glutaric acid product.
    Type: Application
    Filed: May 30, 2014
    Publication date: November 27, 2014
    Applicant: Rennovia, Inc.
    Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
  • Publication number: 20140343323
    Abstract: Processes are disclosed for the conversion of a carbohydrate source to hexamethylenediamine (HMDA) and to intermediates useful for the production of hexamethylenediamine and other industrial chemicals. HMDA is produced by direct reduction of a furfural substrate to 1,6-hexanediol in the presence of hydrogen and a heterogeneous reduction catalyst comprising Pt or by indirect reduction of a furfural substrate to 1,6-hexanediol wherein 1,2,6-hexanetriol is produced by reduction of the furfural substrate in the presence of hydrogen and a catalyst comprising Pt and 1,2,6-hexanediol is then converted by hydrogenation in the presence of a catalyst comprising Pt to 1,6 hexanediol, each process then proceeding to the production of HMDA by known routes, such as amination of the 1,6 hexanediol. Catalysts useful for the direct and indirect production of 1,6-hexanediol are also disclosed.
    Type: Application
    Filed: May 29, 2014
    Publication date: November 20, 2014
    Applicant: RENNOVIA, INC.
    Inventors: Eric L. DIAS, James A. W. SHOEMAKER, Thomas R. BOUSSIE, Vincent J. MURPHY