Patents by Inventor Chaitanya K. Narula

Chaitanya K. Narula 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: 10696606
    Abstract: A method for converting an alcohol to a hydrocarbon fraction reduced in gaseous hydrocarbon content, the method comprising: (i) contacting said alcohol with a metal-loaded zeolite catalyst under conditions suitable for converting said alcohol to a first hydrocarbon fraction containing liquid hydrocarbons having at least five carbon atoms along with gaseous hydrocarbons having less than five carbon atoms, wherein said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said first hydrocarbon fraction; and (ii) selectively removing said gaseous hydrocarbons from the first hydrocarbon fraction and contacting said gaseous hydrocarbons with a metal-loaded zeolite catalyst under conditions suitable for converting said gaseous hydrocarbons into liquid hydrocarbons having at least five carbon atoms to produce a second hydrocarbon fraction reduced in gaseous hydrocarbon content, wherein the metal-loaded zeolite catalyst in steps (i) and (ii) are the same or different.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: June 30, 2020
    Assignee: UT-Battelle, LLC
    Inventors: Chaitanya K. Narula, Brian H. Davison, Zhenglong Li
  • Publication number: 20180187091
    Abstract: A method for converting an alcohol to a hydrocarbon, the method comprising contacting said alcohol with a metal-loaded zeolite catalyst at a temperature of at least 100° C. and up to 550° C., wherein said alcohol can be produced by a fermentation process, said metal is a positively-charged metal ion, and said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said hydrocarbon.
    Type: Application
    Filed: March 1, 2018
    Publication date: July 5, 2018
    Applicant: UT-Battelle, LLC
    Inventors: Chaitanya K. NARULA, Brian H. DAVISON, Martin KELLER
  • Patent number: 9944861
    Abstract: A method for producing a hydrocarbon blendstock, the method comprising contacting at least one saturated acyclic alcohol having at least three and up to ten carbon atoms with a metal-loaded zeolite catalyst at a temperature of at least 100° C. and up to 550° C., wherein the metal is a positively-charged metal ion, and the metal-loaded zeolite catalyst is catalytically active for converting the alcohol to the hydrocarbon blendstock, wherein the method directly produces a hydrocarbon blendstock having less than 1 vol % ethylene and at least 35 vol % of hydrocarbon compounds containing at least eight carbon atoms.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: April 17, 2018
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Brian H. Davison
  • Patent number: 9938467
    Abstract: A method for converting an alcohol to a hydrocarbon, the method comprising contacting said alcohol with a metal-loaded zeolite catalyst at a temperature of at least 100° C. and up to 550° C., wherein said alcohol can be produced by a fermentation process, said metal is a positively-charged metal ion, and said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said hydrocarbon.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 10, 2018
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Brian H. Davison, Martin Keller
  • Publication number: 20170355649
    Abstract: A method for converting an alcohol to a hydrocarbon fraction reduced in gaseous hydrocarbon content, the method comprising: (i) contacting said alcohol with a metal-loaded zeolite catalyst under conditions suitable for converting said alcohol to a first hydrocarbon fraction containing liquid hydrocarbons having at least five carbon atoms along with gaseous hydrocarbons having less than five carbon atoms, wherein said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said first hydrocarbon fraction; and (ii) selectively removing said gaseous hydrocarbons from the first hydrocarbon fraction and contacting said gaseous hydrocarbons with a metal-loaded zeolite catalyst under conditions suitable for converting said gaseous hydrocarbons into liquid hydrocarbons having at least five carbon atoms to produce a second hydrocarbon fraction reduced in gaseous hydrocarbon content, wherein the metal-loaded zeolite catalyst in steps (i) and (ii) are the same or different.
    Type: Application
    Filed: June 9, 2016
    Publication date: December 14, 2017
    Inventors: Chaitanya K. Narula, Brian H. Davison, Zhenglong Li
  • Patent number: 9694352
    Abstract: A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al3+. The catalyst composition decreases NOx emissions in diesel exhaust and is suitable for operation in a catalytic converter.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: July 4, 2017
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Xiaofan Yang
  • Publication number: 20170066974
    Abstract: A method for converting an alcohol to a hydrocarbon, the method comprising contacting said alcohol with a metal-loaded zeolite catalyst at a temperature of at least 100° C. and up to 550° C., wherein said alcohol can be produced by a fermentation process, said metal is a positively-charged metal ion, and said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said hydrocarbon.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 9, 2017
    Applicant: UT-BATTELLE, LLC
    Inventors: Chaitanya K. NARULA, Brian H. DAVISON, Martin KELLER
  • Publication number: 20170014814
    Abstract: A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al3+. The catalyst composition decreases NOx emissions in diesel exhaust and is suitable for operation in a catalytic converter.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 19, 2017
    Applicant: UT-Battelle, LLC
    Inventors: Chaitanya K. NARULA, Xiaofan YANG
  • Patent number: 9533921
    Abstract: A method for converting an alcohol to a hydrocarbon, the method comprising contacting said alcohol with a metal-loaded zeolite catalyst at a temperature of at least 100° C. and up to 550° C., wherein said alcohol can be produced by a fermentation process, said metal is a positively-charged metal ion, and said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said hydrocarbon.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: January 3, 2017
    Assignee: UT-BATTELLE, LLC.
    Inventors: Chaitanya K. Narula, Brian H. Davison, Martin Keller
  • Patent number: 9475039
    Abstract: A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al3+. The catalyst composition decreases NOx emissions in diesel exhaust and is suitable for operation in a catalytic converter.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: October 25, 2016
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Xiaofan Yang
  • Patent number: 9434658
    Abstract: A method for converting an alcohol to a hydrocarbon fraction having a lowered benzene content, the method comprising: converting said alcohol to a hydrocarbon fraction by contacting said alcohol, under conditions suitable for converting said alcohol to said hydrocarbon fraction, with a metal-loaded zeolite catalyst catalytically active for converting said alcohol to said hydrocarbon fraction, and contacting said hydrocarbon fraction with a benzene alkylation catalyst, under conditions suitable for alkylating benzene, to form alkylated benzene product in said hydrocarbon fraction. Also described is a catalyst composition useful in the method, comprising a mixture of (i) a metal-loaded zeolite catalyst catalytically active for converting said alcohol to said hydrocarbon, and (ii) a benzene alkylation catalyst, in which (i) and (ii) may be in a mixed or separated state. A reactor for housing the catalyst and conducting the reaction is also described.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: September 6, 2016
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Brian H. Davison, Martin Keller
  • Patent number: 9403156
    Abstract: A catalyst comprising a zeolite loaded with copper ions and at least one trivalent metal ion other than Al+3, wherein the catalyst decreases NOx emissions in diesel exhaust. The trivalent metal ions are selected from, for example, trivalent transition metal ions, trivalent main group metal ions, and/or trivalent lanthanide metal ions. In particular embodiments, the catalysts are selected from Cu—Fe-ZSM5, Cu—La-ZSM-5, Fe—Cu—La-ZSM5, Cu—Sc-ZSM-5, and Cu—In-ZSM5. The catalysts are placed on refractory support materials and incorporated into catalytic converters.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: August 2, 2016
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Xiaofan Yang
  • Patent number: 9278892
    Abstract: A method for converting an alcohol to a hydrocarbon fraction having a lowered benzene content, the method comprising: converting said alcohol to a hydrocarbon fraction by contacting said alcohol, under conditions suitable for converting said alcohol to said hydrocarbon fraction, with a metal-loaded zeolite catalyst catalytically active for converting said alcohol to said hydrocarbon fraction, and contacting said hydrocarbon fraction with a benzene alkylation catalyst, under conditions suitable for alkylating benzene, to form alkylated benzene product in said hydrocarbon fraction. Also described is a catalyst composition useful in the method, comprising a mixture of (i) a metal-loaded zeolite catalyst catalytically active for converting said alcohol to said hydrocarbon, and (ii) a benzene alkylation catalyst, in which (i) and (ii) may be in a mixed or separated state. A reactor for housing the catalyst and conducting the reaction is also described.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: March 8, 2016
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Brian H. Davison, Martin Keller
  • Publication number: 20160032195
    Abstract: A method for producing a hydrocarbon blendstock, the method comprising contacting at least one saturated acyclic alcohol having at least three and up to ten carbon atoms with a metal-loaded zeolite catalyst at a temperature of at least 100° C. and up to 550° C., wherein the metal is a positively-charged metal ion, and the metal-loaded zeolite catalyst is catalytically active for converting the alcohol to the hydrocarbon blendstock, wherein the method directly produces a hydrocarbon blendstock having less than 1 vol % ethylene and at least 35 vol % of hydrocarbon compounds containing at least eight carbon atoms.
    Type: Application
    Filed: October 8, 2015
    Publication date: February 4, 2016
    Applicant: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Brian H. Davison
  • Patent number: 9190697
    Abstract: A composition comprised of nanoparticles of lithium ion conducting solid oxide material, wherein the solid oxide material is comprised of lithium ions, and at least one type of metal ion selected from pentavalent metal ions and trivalent lanthanide metal ions. Solution methods useful for synthesizing these solid oxide materials, as well as precursor solutions and components thereof, are also described. The solid oxide materials are incorporated as electrolytes into lithium ion batteries.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: November 17, 2015
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Claus Daniel
  • Patent number: 9181493
    Abstract: A method for producing a hydrocarbon blendstock, the method comprising contacting at least one saturated acyclic alcohol having at least three and up to ten carbon atoms with a metal-loaded zeolite catalyst at a temperature of at least 100° C. and up to 550° C., wherein the metal is a positively-charged metal ion, and the metal-loaded zeolite catalyst is catalytically active for converting the alcohol to the hydrocarbon blendstock, wherein the method directly produces a hydrocarbon blendstock having less than 1 vol % ethylene and at least 35 vol % of hydrocarbon compounds containing at least eight carbon atoms.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: November 10, 2015
    Assignee: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Brian H. Davison
  • Publication number: 20150238944
    Abstract: A catalyst comprising a zeolite loaded with copper ions and at least one trivalent metal ion other than Al+3, wherein the catalyst decreases NOx emissions in diesel exhaust. The trivalent metal ions are selected from, for example, trivalent transition metal ions, trivalent main group metal ions, and/or trivalent lanthanide metal ions. In particular embodiments, the catalysts are selected from Cu—Fe-ZSM5, Cu—La-ZSM-5, Fe—Cu—La-ZSM5, Cu—Sc-ZSM-5, and Cu—In-ZSM5. The catalysts are placed on refractory support materials and incorporated into catalytic converters.
    Type: Application
    Filed: March 19, 2015
    Publication date: August 27, 2015
    Applicant: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Xiaofan Yang
  • Publication number: 20150238946
    Abstract: A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al3+. The catalyst composition decreases NOx emissions in diesel exhaust and is suitable for operation in a catalytic converter.
    Type: Application
    Filed: March 19, 2015
    Publication date: August 27, 2015
    Applicant: UT-BATTELLE, LLC
    Inventors: Chaitanya K. Narula, Xiaofan Yang
  • Patent number: 8999168
    Abstract: A system and method for the extraction of americium from radioactive waste solutions. The method includes the transfer of highly oxidized americium from an acidic aqueous feed solution through an immobilized liquid membrane to an organic receiving solvent, for example tributyl phosphate. The immobilized liquid membrane includes porous support and separating layers loaded with tributyl phosphate. The extracted solution is subsequently stripped of americium and recycled at the immobilized liquid membrane as neat tributyl phosphate for the continuous extraction of americium. The sequestered americium can be used as a nuclear fuel, a nuclear fuel component or a radiation source, and the remaining constituent elements in the aqueous feed solution can be stored in glassified waste forms substantially free of americium.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: April 7, 2015
    Assignee: UT-Battelle, LLC
    Inventors: Ramesh R. Bhave, Melanie M. DeBusk, Guillermo D. DelCul, Laetitia H. Delmau, Chaitanya K. Narula
  • Patent number: 8987162
    Abstract: A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al3+. The catalyst composition decreases NOx emissions in diesel exhaust and is suitable for operation in a catalytic converter.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: March 24, 2015
    Assignee: UT-Battelle, LLC
    Inventors: Chaitanya K. Narula, Xiaofan Yang