Patents by Inventor Paul D. Pansegrau

Paul D. Pansegrau 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: 8530715
    Abstract: The present invention relates to production of fuels or fuel blendstocks from renewable sources. Various embodiments provide a method of producing a hydrocarbon product by hydrotreating a feedstock including at least one of a renewable triacylglyceride (TAG), renewable free fatty acid (FFA), and renewable fatty acid C1-C5 alkyl ester (C1-C5 FAE) in the presence of a nonsulfided hydrotreating catalyst to produce a first product including hydrocarbons. In some examples, the first product can be subjected to further chemical transformations such as aromatization, cracking, or isomerization to produce a second product including hydrocarbons. In various embodiments, the first or second hydrocarbon product with minimal or substantially no further processing can be suitable as a liquid transportation fuel or fuel blendstock, including fuels such as gasoline, naptha, kerosene, jet fuel, and diesel fuels.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: September 10, 2013
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Joshua R. Strege, Benjamin G. Oster, Paul D. Pansegrau, Chad A. Wocken, Ted R. Aulich, Marc D. Kurz
  • Publication number: 20130072731
    Abstract: The present invention relates to production of fuels or fuel blendstocks from renewable sources. Various embodiments provide a method of producing a hydrocarbon product by hydrotreating a feedstock including at least one of a renewable triacylglyceride (TAG), renewable free fatty acid (FFA), and renewable fatty acid C1-C5 alkyl ester (C1-C5 FAE) in the presence of a nonsulfided hydrotreating catalyst to produce a first product including hydrocarbons. In some examples, the first product can be subjected to further chemical transformations such as aromatization, cracking, or isomerization to produce a second product including hydrocarbons. In various embodiments, the first or second hydrocarbon product with minimal or substantially no further processing can be suitable as a liquid transportation fuel or fuel blendstock, including fuels such as gasoline, naptha, kerosene, jet fuel, and diesel fuels.
    Type: Application
    Filed: November 9, 2012
    Publication date: March 21, 2013
    Applicant: Energy & Environmental Research Center Foundation
    Inventors: Joshua R. Strege, Benjamin G. Oster, Paul D. Pansegrau, Chad A. Wocken, Ted R. Aulich, Marc D. Kurz
  • Patent number: 8309783
    Abstract: The present invention relates to production of fuels or fuel blendstocks from renewable sources. Various embodiments provide a method of producing a hydrocarbon product by hydrotreating a feedstock including at least one of a renewable triacylglyceride (TAG), renewable free fatty acid (FFA), and renewable fatty acid C1-C5 alkyl ester (C1-C5 FAE) in the presence of a nonsulfided hydrotreating catalyst to produce a first product including hydrocarbons. In some examples, the first product can be subjected to further chemical transformations such as aromatization, cracking, or isomerization to produce a second product including hydrocarbons. In various embodiments, the first or second hydrocarbon product with minimal or substantially no further processing can be suitable as a liquid transportation fuel or fuel blendstock, including fuels such as gasoline, naptha, kerosene, jet fuel, and diesel fuels.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: November 13, 2012
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Joshua R. Strege, Benjamin G. Oster, Paul D. Pansegrau, Chad A. Wocken, Ted R. Aulich, Marc D. Kurz
  • Patent number: 8247632
    Abstract: A method of producing a hydrocarbon product by hydrotreating a feedstock comprising triacylglyceride (TAG) and TAG-derived materials such as free fatty acid (FFA) and fatty acid methyl ester (FAME) in the presence of a nonsulfided hydrotreating catalyst to produce a first product comprising hydrocarbons. A method of producing a transportation fuel by selecting an undoped feedstock comprising virgin TAG, used TAG, FFA, and FAME or a combination thereof; hydrotreating the undoped feedstock in the presence of an unsulfided hydrotreating catalyst to produce a first product and subjecting the first product to at least one process selected from aromatization, cyclization, and isomerization to produce a second hydrocarbon product selected from gasoline, kerosene, jet fuel, and diesel fuels. A method is described by which fatty acids may be converted to hydrocarbons suitable for use as liquid transportation fuels.
    Type: Grant
    Filed: June 27, 2009
    Date of Patent: August 21, 2012
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Joshua R. Strege, Benjamin G. Oster, Paul D. Pansegrau, Chad A. Wocken, Ted R. Aulich, Marc Kurz
  • Publication number: 20120157734
    Abstract: The present invention relates to production of fuels or fuel blendstocks from renewable sources. Various embodiments provide a method of producing a hydrocarbon product by hydrotreating a feedstock including at least one of a renewable triacylglyceride (TAG), renewable free fatty acid (FFA), and renewable fatty acid C1-C5 alkyl ester (C1-C5 FAE) in the presence of a nonsulfided hydrotreating catalyst to produce a first product including hydrocarbons. In some examples, the first product can be subjected to further chemical transformations such as aromatization, cracking, or isomerization to produce a second product including hydrocarbons. In various embodiments, the first or second hydrocarbon product with minimal or substantially no further processing can be suitable as a liquid transportation fuel or fuel blendstock, including fuels such as gasoline, naptha, kerosene, jet fuel, and diesel fuels.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 21, 2012
    Inventors: Joshua R. Strege, Benjamin G. Oster, Paul D. Pansegrau, Chad A. Wocken, Ted R. Aulich, Mare D. Kurz
  • Publication number: 20120157733
    Abstract: A method of producing a hydrocarbon product by hydrotreating a feedstock comprising triacylglyceride (TAG) and TAG-derived materials such as free fatty acid (FFA) and fatty acid methyl ester (FAME) in the presence of a nonsulfided hydrotreating catalyst to produce a first product comprising hydrocarbons. A method of producing a transportation fuel by selecting an undoped feedstock comprising virgin TAG, used TAG, FFA, and FAME or a combination thereof; hydrotreating the undoped feedstock in the presence of an unsulfided hydrotreating catalyst to produce a first product and subjecting the first product to at least one process selected from aromatization, cyclization, and isomerization to produce a second hydrocarbon product selected from gasoline, kerosene, jet fuel, and diesel fuels. A method is described by which fatty acids may be converted to hydrocarbons suitable for use as liquid transportation fuels.
    Type: Application
    Filed: June 27, 2009
    Publication date: June 21, 2012
    Inventors: Joshua R. Strege, Benjamin G. Oster, Paul D. Pansegrau, Chad A. Wocken, Ted R. Aulich, Marc Kurz
  • Patent number: 7989671
    Abstract: A method of producing a hydrocarbon product by hydrotreating a feedstock comprising triacylglyceride (TAG) in the presence of a nonsulfided hydrotreating catalyst to produce a first product comprising hydrocarbons. A method of producing a transportation fuel by selecting an undoped feedstock comprising virgin TAG, used TAG, or a combination thereof; hydrotreating the undoped feedstock in the presence of an unsulfided hydrotreating catalyst to produce a first product; and subjecting the first product to at least one process selected from aromatization, cyclization, and isomerization; to produce a second hydrocarbon product selected from gasoline, kerosene, jet fuel, and diesel fuels.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: August 2, 2011
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Joshua R. Strege, Benjamin G. Oster, Paul D. Pansegrau, Chad A. Wocken, Ted R. Aulich
  • Publication number: 20100113848
    Abstract: A method of producing a hydrocarbon product by hydrotreating a feedstock comprising triacylglyceride (TAG) in the presence of a nonsulfided hydrotreating catalyst to produce a first product comprising hydrocarbons. A method of producing a transportation fuel by selecting an undoped feedstock comprising virgin TAG, used TAG, or a combination thereof; hydrotreating the undoped feedstock in the presence of an unsulfided hydrotreating catalyst to produce a first product; and subjecting the first product to at least one process selected from aromatization, cyclization, and isomerization; to produce a second hydrocarbon product selected from gasoline, kerosene, jet fuel, and diesel fuels.
    Type: Application
    Filed: November 4, 2008
    Publication date: May 6, 2010
    Applicant: Energy & Environment Research Center
    Inventors: Joshua R. Strege, Benjamin G. Oster, Paul D. Pansegrau, Chad A. Wocken, Ted R. Aulich
  • Patent number: 6013841
    Abstract: The 3- and 4-methylcatechols are converted to the corresponding benzaldehyde by first alkylating the hydroxyl groups to form an alkylated methylcatechol. The methyl group is then converted to a methyl dibromide group using 1,3-dibromo-5,5-dimethylhydantoin in the presence of a non-polar, non-reactive solvent such as carbon tetrachloride and heptane and a radical initiator having a ten hour half-life temperature in the range of 47.degree. to 55.degree. C. The dibromide is then hydrolyzed to form the aldehyde.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: January 11, 2000
    Assignee: Dakota Gasification Company
    Inventor: Paul D. Pansegrau
  • Patent number: 5840997
    Abstract: Alkoxybenzaldehydes and aryloxybenzaldehydes are converted to the corresponding phenols by reacting the benzaldehydes in an organic solvent phase with formic acid and hydrogen peroxide in an aqueous solvent phase to produce the corresponding formate ester. The formate ester is then saponified to produce the corresponding phenol.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: November 24, 1998
    Assignee: Dakota Gasification Company
    Inventors: Paul D. Pansegrau, Brant P. Munson
  • Patent number: 5618946
    Abstract: The present invention relates to novel 7-oxabicycloheptane carboxylic acid prostaglandin analog intermediates which may be used to prepare a final anti-thrombotic, anti-vasospastic product, and to methods for preparing the same.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: April 8, 1997
    Assignee: Bristol-Myers Squibb Company
    Inventors: Michael A. Poss, Paul D. Pansegrau, Shaopeng Wang, John K. Thottathil, Janak Singh, Richard H. Mueller
  • Patent number: 5539130
    Abstract: A method is provided for preparing carboxylic acid intermediates of the structure ##STR1##
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: July 23, 1996
    Assignee: Bristol-Myers Squibb Company
    Inventors: Michael A. Poss, Paul D. Pansegrau, Shaopeng Wang, John K. Thottahil, Janak Singh, Richard H. Mueller
  • Patent number: 5512690
    Abstract: A method is provided for preparing carboxylic acid intermediates of the structure ##STR1##
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: April 30, 1996
    Assignee: Bristol-Myers Squibb Company
    Inventors: Michael A. Poss, Paul D. Pansegrau, Shaopeng Wang, John K. Thottathil, Janak Singh, Richard H. Mueller
  • Patent number: 5508445
    Abstract: A method is provided for preparing carboxylic acid intermediates of the structure ##STR1##
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: April 16, 1996
    Assignee: Bristol-Myers Squibb Company
    Inventors: Michael A. Poss, Paul D. Pansegrau, Shaopeng Wang, John K. Thottathil, Janak Singh, Richard H. Mueller
  • Patent number: 5399725
    Abstract: A method is provided for preparing carboxylic acid intermediates of the structure ##STR1## wherein an aldehyde of the structure ##STR2## is prepared and subjected to a Horner-Emmons reaction to form the ester of the structure ##STR3## and the ester is hydrogenated to the carboxylic acid which may be used in making the final anti-thrombotic--anti-vasospastic compounds.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: March 21, 1995
    Assignee: Bristol-Myers Squibb Co.
    Inventors: Michael A. Poss, Paul D. Pansegrau, Shaopeng Wang, John K. Thottathil, Janak Singh, Richard H. Mueller