Patents by Inventor Ashish B. Mhadeshwar
Ashish B. Mhadeshwar 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: 20240139702Abstract: Systems and methods are provided for improving control of the temperature profile in a cyclic flow reactor, such as a reverse flow reactor, during operation. The improved temperature control is achieved in part based on inclusion of regions having reduced or minimized catalyst density with increased volumetric heat capacity within the reaction zone of the reactor. This improved control over the temperature profile is achieved while reducing or minimizing any loss of reaction capacity due to lowering the amount of catalyst in the reaction zone.Type: ApplicationFiled: November 1, 2023Publication date: May 2, 2024Inventors: Anastasios I. SKOULIDAS, Anjaneya S. Kovvali, Brian M. Moreno, Ashish B. Mhadeshwar, Everett J. O'Neal
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Publication number: 20240071575Abstract: Ranking materials for post combustion carbon capture by characterizing sorbent materials with a molecular model workflow that generates microscopic figures of merit for materials by microscopic properties; and evaluating the materials from the molecular model workflow with a process model workflow that generates macroscopic figures of merit for process steps of a carbon recovery process. The materials for applicability as a sorbent material are ranked using a combined microscopic performance and macroscopic process feasibility generator that ranks the materials according to the microscopic figures of merit for materials and the macroscopic figures of merit for the process steps.Type: ApplicationFiled: August 30, 2022Publication date: February 29, 2024Inventors: Rodrigo Neumann Barros Ferreira, Ricardo Luis Ohta, Yogesh V. Joshi, Mathias B. Steiner, Tonia Elengikal, Binquan Luan, Ashish B. Mhadeshwar, Jayashree Kalyanaraman, Anantha Sundaram, Sumathy Raman
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Patent number: 11760942Abstract: An upgraded crude composition is provided, along with systems and methods for making such a composition. The upgraded crude composition can include an unexpectedly high percentage of vacuum gas oil boiling range components while having a reduce or minimized amount of components boiling above 593° C. (1100° F.). In some aspects, based in part on the hydroprocessing used to form the upgraded crude composition, the composition can include unexpectedly high contents of nitrogen. Still other unexpected features of the composition can include, but are not limited to, an unexpectedly high nitrogen content in the naphtha fraction; and an unexpected vacuum gas oil fraction including an unexpectedly high content of polynuclear aromatics, an unexpectedly high content of waxy, paraffinic compounds, and/or an unexpectedly high content of n-pentane asphaltenes.Type: GrantFiled: August 14, 2020Date of Patent: September 19, 2023Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANYInventors: Stephen H. Brown, Brenda A. Raich, Samuel J. Cady, Anjaneya S. Kovvali, Eric B. Shen, Scott R. Horton, Ashish B. Mhadeshwar, Aruna Ramkrishnan
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Publication number: 20220333026Abstract: An upgraded crude composition is provided, along with systems and methods for making such a composition. The upgraded crude composition can include an unexpectedly high percentage of vacuum gas oil boiling range components while having a reduce or minimized amount of components boiling above 593° C. (1100° F.). In some aspects, based in part on the hydroprocessing used to form the upgraded crude composition, the composition can include unexpectedly high contents of nitrogen. Still other unexpected features of the composition can include, but are not limited to, an unexpectedly high nitrogen content in the naphtha fraction; and an unexpected vacuum gas oil fraction including an unexpectedly high content of polynuclear aromatics, an unexpectedly high content of waxy, paraffinic compounds, and/or an unexpectedly high content of n-pentane asphaltenes.Type: ApplicationFiled: August 14, 2020Publication date: October 20, 2022Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Stephen H. BROWN, Brenda A. RAICH, Samuel J. CADY, Anjaneya S. KOVVALI, Eric B. SHEN, Scott R. HORTON, Ashish B. MHADESHWAR, Aruna RAMKRISHNAN
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Patent number: 11292730Abstract: A method for desalinating a liquid, including: contacting, within a hydrate former reactor, a feed gas stream including iso-butane in an amount ranging from above zero mol % to about 3 mol % and liquid seawater or liquid wastewater including a dissolved salt, wherein a temperature and pressure within the hydrate former reactor is controlled so that the feed gas stream and the liquid seawater or liquid wastewater form a hydrate slurry; separating hydrate particles from the hydrate slurry; and decomposing the hydrate particles into its constituents of water and gas or gas mixture containing iso-butane, wherein the water has a concentration of the dissolved salt that is less than that of the liquid seawater or liquid wastewater.Type: GrantFiled: April 23, 2019Date of Patent: April 5, 2022Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Ashish B. Mhadeshwar, Brian K. Peterson, Matthew S. Mettler, Rustom M. Billimoria
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Patent number: 11161073Abstract: Processes for separating carbon dioxide from a gas mixture that comprises CO2 and N2 that are based upon formation of gas hydrates, and systems useful for implementing such processes, are disclosed.Type: GrantFiled: February 4, 2020Date of Patent: November 2, 2021Assignee: ExxonMobil Research and Engineering CompanyInventors: Matthew S. Mettler, Ashish B. Mhadeshwar, Rustom M. Billimoria
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Publication number: 20200181664Abstract: The present disclosure relates to methods and systems for converting biomass into biofuels and biochemicals. In particular, the present disclosure relates to methods and systems for converting biomass comprising lignocellulosic material into biofuels and biochemicals, such as those comprising fatty acid esters, that contribute to reduction of greenhouse gas emissions.Type: ApplicationFiled: December 9, 2019Publication date: June 11, 2020Inventors: Arsam Behkish, C. Rebecca Locker, Giovanni Pilloni, Kelsey M. McNeely, Changyub Paek, Ashish B. Mhadeshwar, Eric B. Shen
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Publication number: 20200171424Abstract: Processes for separating carbon dioxide from a gas mixture that comprises CO2 and N2 that are based upon formation of gas hydrates, and systems useful for implementing such processes, are disclosed.Type: ApplicationFiled: February 4, 2020Publication date: June 4, 2020Inventors: Matthew S. Mettler, Ashish B. Mhadeshwar, Rustom M. Billimoria
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Patent number: 10668425Abstract: Processes for separating methane from a gas mixture that comprises methane and C2 gas, including C2+ gas, and other gases, including CO2 and H2S, that are based upon formation of gas hydrates, and systems useful for implementing such processes, are disclosed.Type: GrantFiled: December 14, 2017Date of Patent: June 2, 2020Assignee: ExxonMobil Research & Engineering CompanyInventors: Matthew S. Mettler, Ashish B. Mhadeshwar, William R. Gunther, Rustom M. Billimoria
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Publication number: 20190322544Abstract: A method for desalinating a liquid, including: contacting, within a hydrate former reactor, a feed gas stream including iso-butane in an amount ranging from above zero mol % to about 3 mol % and liquid seawater or liquid wastewater including a dissolved salt, wherein a temperature and pressure within the hydrate former reactor is controlled so that the feed gas stream and the liquid seawater or liquid wastewater form a hydrate slurry; separating hydrate particles from the hydrate slurry; and decomposing the hydrate particles into its constituents of water and gas or gas mixture containing iso-butane, wherein the water has a concentration of the dissolved salt that is less than that of the liquid seawater or liquid wastewater.Type: ApplicationFiled: April 23, 2019Publication date: October 24, 2019Inventors: Ashish B. Mhadeshwar, Brian K. Peterson, Matthew S. Mettler, Rustom M. Billimoria
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Patent number: 10391445Abstract: Processes for forming and sequestering CO2 clathrates in a marine environment are disclosed.Type: GrantFiled: January 23, 2018Date of Patent: August 27, 2019Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Matthew S. Mettler, Ashish B. Mhadeshwar, Jean W. Beeckman, Robert D. Denton, Jason W. Lachance, Rustom M. Billimoria
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Publication number: 20180229178Abstract: Processes for forming and sequestering CO2 clathrates in a marine environment are disclosed.Type: ApplicationFiled: January 23, 2018Publication date: August 16, 2018Inventors: Matthew S. METTLER, Ashish B. MHADESHWAR, Jean W. BEECKMAN, Robert D. DENTON, Jason W. LACHANCE, Rustom M. BILLIMORIA
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Publication number: 20180178161Abstract: Processes for separating carbon dioxide from a gas mixture that comprises CO2 and N2 that are based upon formation of gas hydrates, and systems useful for implementing such processes, are disclosed.Type: ApplicationFiled: December 14, 2017Publication date: June 28, 2018Inventors: Matthew S. METTLER, Ashish B. MHADESHWAR, Rustom M. BILLIMORIA
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Publication number: 20180178157Abstract: Processes for separating methane from a gas mixture that comprises methane and C2 gas, including C2+ gas, and other gases, including CO2 and H2S, that are based upon formation of gas hydrates, and systems useful for implementing such processes, are disclosed.Type: ApplicationFiled: December 14, 2017Publication date: June 28, 2018Inventors: Matthew S. METTLER, Ashish B. MHADESHWAR, William R. GUNTHER, Rustom M. BILLIMORIA
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Publication number: 20180161743Abstract: Provided herein are dual riser fluid catalytic cracking processes for producing light olefins from an oxygenate feed, such as a methanol feed, in a conventional FCC unit. In certain aspects the processes comprise cracking a hydrocarbon feed in a first riser comprising a first catalyst under first riser conditions to form a first effluent enriched in olefins, light gasoil, gasoline, or a combination thereof; cracking a hydrocarbon oxygenate feed in a second riser comprising a second catalyst under second riser conditions to form a second effluent enriched in olefins; recovering the first and second catalyst from the first and second effluents in a common reactor; regenerating the recovered first and second catalyst in a regenerator using heat from the exothermic cracking of the hydrocarbon oxygenate feed; and recirculating the regenerated first and second catalyst to the first and second riser.Type: ApplicationFiled: November 9, 2017Publication date: June 14, 2018Inventors: Stephen J. McCARTHY, Rustom M. BILLIMORIA, Brandon J. O'NEILL, Ashish B. MHADESHWAR, Amrit JALAN
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Patent number: 8978353Abstract: Systems and methods for rejecting waste heat generated by one or more operating systems installed on an aircraft employ an endothermic fuel that can participate in endothermic catalytic cracking at temperatures below about 80° C. when exposed to a cracking catalyst that contains a superacid operative to induce low-temperature catalytic cracking of the branched alkanes. The endothermic fuel contains an effective amount of the branched alkanes so that a net endothermic effect is realized when the fuel is exposed to the cracking catalyst. The low-temperature, heat-consuming cracking of the branched alkanes increases the heat sink capacity of the endothermic fuel.Type: GrantFiled: May 31, 2011Date of Patent: March 17, 2015Assignee: Lockheed Martin CorporationInventors: Daniel G. Norton, Robert J. Perry, John Osaheni, Patrick Pastecki, Paul Glaser, Ashish B. Mhadeshwar
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Patent number: 8961891Abstract: A heat sink is used to absorb heat produced by a vehicle. The heat sink uses an endothermic catalytic alcohol dehydrogenation reaction to assist with the absorption of excess heat produced in the electronics of the vehicle. In some embodiments, the alcohol can be pre-heated by absorbing heat from various components of the vehicle. Excess heat from the various components or from the vehicle engine can be used to vaporize the reaction fluids in order to further absorb additional heat. Reaction fluids can also be sent to the vehicle's engine/burner for use as a supplemental fuel.Type: GrantFiled: August 20, 2010Date of Patent: February 24, 2015Assignee: Lockheed Martin CorporationInventors: Ashish B. Mhadeshwar, Daniel Norton, Robert James Perry, Paul Glaser, Patrick Edward Pastecki
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Publication number: 20120305712Abstract: Systems and methods for rejecting waste heat generated by one or more operating systems installed on an aircraft employ an endothermic fuel that can participate in endothermic catalytic cracking at temperatures below about 80° C. when exposed to a cracking catalyst that contains a superacid operative to induce low-temperature catalytic cracking of the branched alkanes. The endothermic fuel contains an effective amount of the branched alkanes so that a net endothermic effect is realized when the fuel is exposed to the cracking catalyst. The low-temperature, heat-consuming cracking of the branched alkanes increases the heat sink capacity of the endothermic fuel.Type: ApplicationFiled: May 31, 2011Publication date: December 6, 2012Applicant: Lockheed Martin CorporationInventors: Daniel G. Norton, Robert J. Perry, John Osaheni, Patrick Pastecki, Paul Glaser, Ashish B. Mhadeshwar
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Publication number: 20120043053Abstract: A heat sink is used to absorb heat produced by a vehicle. The heat sink uses an endothermic catalytic alcohol dehydrogenation reaction to assist with the absorption of excess heat produced in the electronics of the vehicle. In some embodiments, the alcohol can be pre-heated by absorbing heat from various components of the vehicle. Excess heat from the various components or from the vehicle engine can be used to vaporize the reaction fluids in order to further absorb additional heat. Reaction fluids can also be sent to the vehicle's engine/burner for use as a supplemental fuel.Type: ApplicationFiled: August 20, 2010Publication date: February 23, 2012Applicant: Lockheed Martin CorporationInventors: Ashish B. Mhadeshwar, Daniel Norton, Robert James Perry, Paul Glaser, Patrick Edward Pastecki