Patents by Inventor Arvind Varma
Arvind Varma 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: 11524279Abstract: A MXene support for a noble metal that forms a catalyst having active sites comprising single metal-layer nanostructures. The catalyst is stable under conditions for methane conversion to higher hydrocarbons and provides reduced coke formation. The results show a supported metal catalyst using the MXene where Pt atoms form one or more layers of atoms on the surface of the Mo2TiC2Tx support after it is reduced at 750° C. The catalyst shows high selectivity for C2-hydrocarbons with reduced coke formation, which can cost effectively convert methane into other valuable products.Type: GrantFiled: November 18, 2020Date of Patent: December 13, 2022Assignees: Iowa State University Research Foundation, Inc., Purdue Research FoundationInventors: Zhe Li, Yue Wu, Arvind Varma, Yang Xiao
-
Publication number: 20220356137Abstract: Methods for gas-phase deoxygenation of a bio-oil are provided. In embodiments, such a method comprises exposing a bio-oil vapor comprising hydrocarbon compounds having oxygenated aromatic groups, to hydrogen gas in the presence of catalyst under conditions to induce deoxygenation of the oxygenated aromatic groups to provide a deoxygenated aromatic species, wherein the catalyst is a transition metal-incorporated mesoporous silicate having platinum deposited thereon and the transition metal is selected from Nb, W, Zr, and combinations thereof. The transition metal-incorporated mesoporous silicate catalysts are also provided.Type: ApplicationFiled: June 19, 2020Publication date: November 10, 2022Inventors: Bala Subramaniam, Anand Ramanathan, Yang Xiao, Arvind Varma
-
Patent number: 10781376Abstract: A method for producing hydrocarbons from glycerol. The method includes packing a catalyst comprising a noble metal and a support material into a reactor, introducing a reactant mixture containing glycerol into the reactor such that the reactant mixture containing methane is in close contact with the reactant mixture, and heating the reactant mixture containing glycerol to a temperature for a contact time.Type: GrantFiled: October 3, 2018Date of Patent: September 22, 2020Assignee: Purdue Research FoundationInventors: Arvind Varma, Yang Xiao
-
Patent number: 10450247Abstract: A method for producing hydrocarbons and hydrogen from methane. The method includes packing a catalyst comprising platinum, bismuth and a support material into a reactor; introducing a reactant mixture containing methane into the reactor such that the reactant mixture containing methane is in close contact with the reactant mixture; and heating the reactant mixture containing methane to a temperature for a period of time.Type: GrantFiled: September 19, 2018Date of Patent: October 22, 2019Assignee: Purdue Research FoundationInventors: Arvind Varma, Yang Xiao
-
Patent number: 10392333Abstract: A method for producing formaldehyde from methanol. The method includes the steps of packing a catalyst comprising platinum, bismuth and a support material into a reactor, introducing a reactant mixture containing methanol into the reactor such that the reactant mixture containing methanol is in close contact with the catalyst, and heating the reactant mixture containing methanol to a temperature for a period of time.Type: GrantFiled: December 19, 2018Date of Patent: August 27, 2019Assignee: Purdue Research FoundationInventors: Arvind Varma, Yang Xiao
-
Publication number: 20190194106Abstract: A method for producing formaldehyde from methanol. The method includes the steps of packing a catalyst comprising platinum, bismuth and a support material into a reactor, introducing a reactant mixture containing methanol into the reactor such that the reactant mixture containing methanol is in close contact with the catalyst, and heating the reactant mixture containing methanol to a temperature for a period of time.Type: ApplicationFiled: December 19, 2018Publication date: June 27, 2019Applicant: Purdue Research FoundationInventors: Arvind Varma, Yang Xiao
-
Publication number: 20190153329Abstract: A method for producing hydrocarbons from glycerol. The method includes packing a catalyst comprising a noble metal and a support material into a reactor, introducing a reactant mixture containing glycerol into the reactor such that the reactant mixture containing methane is in close contact with the reactant mixture, and heating the reactant mixture containing glycerol to a temperature for a contact time.Type: ApplicationFiled: October 3, 2018Publication date: May 23, 2019Applicant: Purdue Research FoundationInventors: Arvind Varma, Yang Xiao
-
Publication number: 20190084904Abstract: A method for producing hydrocarbons and hydrogen from methane. The method includes packing a catalyst comprising platinum, bismuth and a support material into a reactor; introducing a reactant mixture containing methane into the reactor such that the reactant mixture containing methane is in close contact with the reactant mixture; and heating the reactant mixture containing methane to a temperature for a period of time.Type: ApplicationFiled: September 19, 2018Publication date: March 21, 2019Applicant: Purdue Research FoundationInventors: Arvind Varma, Yang Xiao
-
Patent number: 10023809Abstract: This disclosure provides a new approach for bio-oil upgrading using methane as reductant instead of hydrogen. Guaiacol, produced by thermal degradation of lignin, represents a model compound for upgrading of fast pyrolysis bio-oils by deoxygenation. To overcome the high cost of H2, methane is used to deoxygenate guaiacol. On Pt/C catalyst, in terms of guaiacol conversion and product distribution, methane is found to exhibit comparable deoxygenation performance as H2. Its lifetime, however, is lower (<3 hrs). In one embodiment, the lifetime of Pt—Bi/C catalyst is extended by addition of bismuth as a promoter.Type: GrantFiled: July 29, 2016Date of Patent: July 17, 2018Assignee: PURDUE RESEARCH FOUNDATIONInventors: Arvind Varma, Yang Xiao
-
Publication number: 20180189054Abstract: According to some embodiments, a software version control system data store may contain at least one configuration file associated with a previously created platform, the configuration file including a sequence of component parameters. An automated build platform re-creation computer may receive a platform re-creation request from a user associated with an enterprise. Responsive to the received platform re-creation request, the system may access the at least one data file in the software version control system data store and initiate execution of at least one build process in accordance with the sequence of component parameters. At least one application server computer may receive an indication of the initiation of execution of the at least one build process and execute a build process to re-create the platform in response to the platform re-creation request from the user.Type: ApplicationFiled: December 29, 2016Publication date: July 5, 2018Inventor: Arvind Varma Kalidindi
-
Patent number: 9975768Abstract: A system for generating and purifying hydrogen. To generate hydrogen, the system includes inlets configured to receive a hydrogen carrier and an inert insulator, a mixing chamber configured to combine the hydrogen carrier and the inert insulator, a heat exchanger configured to apply heat to the mixture of hydrogen carrier and the inert insulator, wherein the applied heat results in the generation of hydrogen from the hydrogen carrier, and an outlet configured to release the generated hydrogen. To purify hydrogen, the system includes a primary inlet to receive a starting material and an ammonia filtration subassembly, which may include an absorption column configured to absorb the ammonia into water for providing purified hydrogen at a first purity level. The ammonia filtration subassembly may also include an adsorbent member configured to adsorb ammonia from the starting material into an adsorbent for providing purified hydrogen at a second purity level.Type: GrantFiled: August 4, 2016Date of Patent: May 22, 2018Assignee: Purdue Research FoundationInventors: Arvind Varma, Hyun Tae Hwang, Ahmad Al-Kukhun
-
Patent number: 9610565Abstract: A method for making a metal oxide material and catalyzing the oxidative coupling of methane, including mixing a metal cation-containing oxidizer portion and a reducing fuel portion with water to define an aqueous solution, evaporatively removing water from the aqueous solution to yield a concentrated liquid, burning the concentrated liquid yield an homogeneous metal oxide powder, flowing methane from a first source and oxygen from a second source over the homogeneous metal oxide powder, and catalyzing an oxidative coupling of methane reaction with the homogeneous metal oxide powder. The homogeneous metal oxide powder contains metal oxides selected from the group including LaSrAlO4, LaAlO3, Sr3Al2O6, Na2WO4—Mn/SiO2, and combinations thereof.Type: GrantFiled: August 20, 2013Date of Patent: April 4, 2017Assignee: Purdue Research FoundationInventors: Ranjita Ghose, Hyun Tae Hwang, Arvind Varma
-
Publication number: 20170029712Abstract: This disclosure provides a new approach for bio-oil upgrading using methane as reductant instead of hydrogen. Guaiacol, produced by thermal degradation of lignin, represents a model compound for upgrading of fast pyrolysis bio-oils by deoxygenation. To overcome the high cost of H2, methane is used to deoxygenate guaiacol. On Pt/C catalyst, in terms of guaiacol conversion and product distribution, methane is found to exhibit comparable deoxygenation performance as H2. Its lifetime, however, is lower (<3 hrs). In one embodiment, the lifetime of Pt—Bi/C catalyst is extended by addition of bismuth as a promoter.Type: ApplicationFiled: July 29, 2016Publication date: February 2, 2017Applicant: PURDUE RESEARCH FOUNDATIONInventors: Arvind Varma, Yang Xiao
-
Publication number: 20160340188Abstract: A system for generating and purifying hydrogen. To generate hydrogen, the system includes inlets configured to receive a hydrogen carrier and an inert insulator, a mixing chamber configured to combine the hydrogen carrier and the inert insulator, a heat exchanger configured to apply heat to the mixture of hydrogen carrier and the inert insulator, wherein the applied heat results in the generation of hydrogen from the hydrogen carrier, and an outlet configured to release the generated hydrogen. To purify hydrogen, the system includes a primary inlet to receive a starting material and an ammonia filtration subassembly, which may include an absorption column configured to absorb the ammonia into water for providing purified hydrogen at a first purity level. The ammonia filtration subassembly may also include an adsorbent member configured to adsorb ammonia from the starting material into an adsorbent for providing purified hydrogen at a second purity level.Type: ApplicationFiled: August 4, 2016Publication date: November 24, 2016Inventors: Arvind Varma, Hyun Tae Hwang, Ahmad Al-Kukhun
-
Patent number: 9493349Abstract: A system for generating and purifying hydrogen. To generate hydrogen, the system includes inlets configured to receive a hydrogen carrier and an inert insulator, a mixing chamber configured to combine the hydrogen carrier and the inert insulator, a heat exchanger configured to apply heat to the mixture of hydrogen carrier and the inert insulator, wherein the applied heat results in the generation of hydrogen from the hydrogen carrier, and an outlet configured to release the generated hydrogen. To purify hydrogen, the system includes a primary inlet to receive a starting material and an ammonia filtration subassembly, which may include an absorption column configured to absorb the ammonia into water for providing purified hydrogen at a first purity level. The ammonia filtration subassembly may also include an adsorbent member configured to adsorb ammonia from the starting material into an adsorbent for providing purified hydrogen at a second purity level.Type: GrantFiled: September 2, 2012Date of Patent: November 15, 2016Assignee: Purdue Research FoundationInventors: Arvind Varma, Hyun Tae Hwang, Ahmad Al-Kukhun
-
Publication number: 20150010835Abstract: A system for generating and purifying hydrogen. To generate hydrogen, the system includes inlets configured to receive a hydrogen carrier and an inert insulator, a mixing chamber configured to combine the hydrogen carrier and the inert insulator, a heat exchanger configured to apply heat to the mixture of hydrogen carrier and the inert insulator, wherein the applied heat results in the generation of hydrogen from the hydrogen carrier, and an outlet configured to release the generated hydrogen. To purify hydrogen, the system includes a primary inlet to receive a starting material and an ammonia filtration subassembly, which may include an absorption column configured to absorb the ammonia into water for providing purified hydrogen at a first purity level. The ammonia filtration subassembly may also include an adsorbent member configured to adsorb ammonia from the starting material into an adsorbent for providing purified hydrogen at a second purity level.Type: ApplicationFiled: September 2, 2012Publication date: January 8, 2015Applicant: Purdue Research FoundationInventors: Arvind Varma, Hyun Tae Hwang, Ahmad Al-Kukhun
-
Publication number: 20140080699Abstract: A method for making a metal oxide material and catalyzing the oxidative coupling of methane, including mixing a metal cation-containing oxidizer portion and a reducing fuel portion with water to define an aqueous solution, evaporatively removing water from the aqueous solution to yield a concentrated liquid, burning the concentrated liquid yield an homogeneous metal oxide powder, flowing methane from a first source and oxygen from a second source over the homogeneous metal oxide powder, and catalyzing an oxidative coupling of methane reaction with the homogeneous metal oxide powder. The homogeneous metal oxide powder contains metal oxides selected from the group including LaSrAlO4, LaAlO3, Sr3Al2O6, Na2WO4—Mn/SiO2, and combinations thereof.Type: ApplicationFiled: August 20, 2013Publication date: March 20, 2014Inventors: Ranjita Ghose, Hyun Tae Hwang, Arvind Varma
-
Patent number: 8377416Abstract: A method of releasing hydrogen from ammonia borane is disclosed. The method comprises heating an aqueous ammonia borane solution to between about 80-135° C. at between about 14.7 and 200 pounds per square inch absolute (psia) to release hydrogen by hydrothermolysis.Type: GrantFiled: August 20, 2009Date of Patent: February 19, 2013Assignee: Purdue Research FoundationInventors: Arvind Varma, Moiz Diwan, Evgeny Shafirovich, Hyun-Tae Hwang, Ahmad Al-Kukhun
-
Publication number: 20100047159Abstract: A method of releasing hydrogen from ammonia borane is disclosed. The method comprises heating an aqueous ammonia borane solution to between about 80-135° C. at between about 14.7 and 200 pounds per square inch absolute (psia) to release hydrogen by hydrothermolysis.Type: ApplicationFiled: August 20, 2009Publication date: February 25, 2010Applicant: Purdue Research FoundationInventors: Arvind Varma, Moiz Diwan, Evgeny Shafirovich
-
Publication number: 20060210470Abstract: A method of generating hydrogen is disclosed. The method comprises preparing a first mixture of a stabilizer and a gelling agent in water to define a resulting solution. The method further comprises mixing the resulting solution with metallic particles and metal borohydride to define a resulting mixture. The method further comprises igniting the resulting mixture to obtain hydrogen.Type: ApplicationFiled: March 9, 2006Publication date: September 21, 2006Inventors: Evgeny Shafirovich, Victor Diakov, Arvind Varma