Patents by Inventor Aadesh Harale
Aadesh Harale 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: 20200386155Abstract: Methods and systems for increasing efficiency of combustion in a turbine, methods including expanding in an expansion unit a pressurized fluid stream to form an expanded, cooled fluid stream; exchanging heat between an oxygen containing stream and the expanded, cooled fluid stream to reduce temperature of the oxygen containing stream to a reduced temperature and create a reduced temperature turbine compressor inlet oxygen containing stream; and compressing the reduced temperature turbine compressor inlet oxygen containing stream to an operating pressure of the turbine, where the step of compressing the reduced temperature turbine compressor inlet oxygen containing stream is more efficient than compressing the oxygen containing stream.Type: ApplicationFiled: June 7, 2019Publication date: December 10, 2020Applicant: Saudi Arabian Oil CompanyInventors: Mourad Younes, Aadesh Harale, Sebastien Duval, Ghulam Shabbir
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Patent number: 10829371Abstract: The present application discloses systems and methods for producing hydrogen from sour gas feeds. The systems and methods include systems and methods for steam reforming sour gas to produce hydrogen and calcium looping systems and methods for producing hydrogen from sour gas. In the present systems and methods, a calcination reactor decomposes calcium carbonate to form a calcium oxide and carbon dioxide. In a fuel reactor, sour gas is reacted with the calcium oxide to product syngas and calcium sulfide. An air reactor oxidizes the calcium sulfide to form an oxygen lean air stream and calcium sulfate. A water gas shift reaction stage converts the syngas into a shifted syngas. A separation stage purifies the shifted synthesis gas stream to form a hydrogen product stream.Type: GrantFiled: October 4, 2019Date of Patent: November 10, 2020Assignee: SAUDI ARABIAN OIL COMPANYInventors: Aadesh Harale, Mourad Younes, Maytham Musawi, Aqil Jamal
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Publication number: 20200123935Abstract: Systems and methods for coupling a chemical looping arrangement and a supercritical CO2 cycle are provided. The system includes a fuel reactor, an air reactor, a compressor, first and second heat exchangers, and a turbine. The fuel reactor is configured to heat fuel and oxygen carriers resulting in reformed or combusted fuel and reduced oxygen carriers. The air reactor is configured to re-oxidize the reduced oxygen carriers via an air stream. The air stream, fuel, and oxygen carriers are heated via a series of preheaters prior to their entry into the air and fuel reactors. The compressor is configured to increase the pressure of a CO2 stream to create a supercritical CO2 stream. The first and second heat exchangers are configured to heat the supercritical CO2 stream, and the turbine is configured to expand the heated supercritical CO2 stream to generate power.Type: ApplicationFiled: December 16, 2019Publication date: April 23, 2020Inventors: Mourad Younes, Aadesh Harale, Aqil Jamal
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Patent number: 10556805Abstract: A process for recovering sulfur from a tail gas stream comprising the steps of providing a tail gas stream to a chemical looping combustion (CLC) unit, the tail gas stream comprising a sulfide component, providing an oxygen carrier to the CLC unit, the oxygen carrier comprising a calcium carbonate, providing an air stream to the CLC unit, the air stream comprising oxygen, and reacting the sulfide component in the CLC unit with the calcium compound and the air to produce a product effluent, the product effluent comprising calcium sulfate.Type: GrantFiled: February 8, 2019Date of Patent: February 11, 2020Assignee: SAUDI ARABIAN OIL COMPANYInventors: Aadesh Harale, Mourad Younes, Maytham Musawi
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Patent number: 10550733Abstract: Systems and methods for coupling a chemical looping arrangement and a supercritical CO2 cycle are provided. The system includes a fuel reactor, an air reactor, a compressor, first and second heat exchangers, and a turbine. The fuel reactor is configured to heat fuel and oxygen carriers resulting in reformed or combusted fuel and reduced oxygen carriers. The air reactor is configured to re-oxidize the reduced oxygen carriers via an air stream. The air stream, fuel, and oxygen carriers are heated via a series of preheaters prior to their entry into the air and fuel reactors. The compressor is configured to increase the pressure of a CO2 stream to create a supercritical CO2 stream. The first and second heat exchangers are configured to heat the supercritical CO2 stream, and the turbine is configured to expand the heated supercritical CO2 stream to generate power.Type: GrantFiled: June 26, 2018Date of Patent: February 4, 2020Assignee: Saudi Arabian Oil CompanyInventors: Mourad Younes, Aadesh Harale, Aqil Jamal
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Publication number: 20190390578Abstract: Systems and methods for coupling a chemical looping arrangement and a supercritical CO2 cycle are provided. The system includes a fuel reactor, an air reactor, a compressor, first and second heat exchangers, and a turbine. The fuel reactor is configured to heat fuel and oxygen carriers resulting in reformed or combusted fuel and reduced oxygen carriers. The air reactor is configured to re-oxidize the reduced oxygen carriers via an air stream. The air stream, fuel, and oxygen carriers are heated via a series of preheaters prior to their entry into the air and fuel reactors. The compressor is configured to increase the pressure of a CO2 stream to create a supercritical CO2 stream. The first and second heat exchangers are configured to heat the supercritical CO2 stream, and the turbine is configured to expand the heated supercritical CO2 stream to generate power.Type: ApplicationFiled: June 26, 2018Publication date: December 26, 2019Inventors: Mourad Younes, Aadesh Harale, Aqil Jamal
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Patent number: 10370612Abstract: Methods for producing alcohols and oligomers contemporaneously from a hydrocarbon feed containing mixed butenes using an acid based catalyst are provided. Additionally, methods for producing fuel compositions having alcohols and oligomers prepared from mixed olefins are also provided as embodiments of the present invention. In certain embodiments, the catalyst can include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.Type: GrantFiled: March 29, 2017Date of Patent: August 6, 2019Assignee: Saudi Arabian Oil CompanyInventors: Wei Xu, Thamer A. Mohammad, Aadesh Harale, Kareemuddin M. Shaik
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Publication number: 20190168206Abstract: The present invention relates to a dry reforming catalyst in which an active material is impregnated on the surface of a metal oxide support and the active material is surrounded by a surfactant, a method of preparing the same, and a method of producing a synthetic gas using the catalyst. Since the surfactant on the surface of the active material prevents the active material from being sintered and the active material surface from being covered with carbon, the dry reforming catalyst exhibits high activity at high temperature for a long period of time without having to use a precious metal, and thus is useful for the production of a synthetic gas.Type: ApplicationFiled: August 7, 2017Publication date: June 6, 2019Inventors: Cafer Tayyar YAVUZ, Ercan OZDEMIR, Youngdong SONG, Aadesh HARALE, Bandar FADHEL
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Publication number: 20190169039Abstract: A process for recovering sulfur from a tail gas stream comprising the steps of providing a tail gas stream to a chemical looping combustion (CLC) unit, the tail gas stream comprising a sulfide component, providing an oxygen carrier to the CLC unit, the oxygen carrier comprising a calcium carbonate, providing an air stream to the CLC unit, the air stream comprising oxygen, and reacting the sulfide component in the CLC unit with the calcium compound and the air to produce a product effluent, the product effluent comprising calcium sulfate.Type: ApplicationFiled: February 8, 2019Publication date: June 6, 2019Applicant: SAUDI ARABIAN OIL COMPANYInventors: Aadesh Harale, Mourad Younes, Maytham Musawi
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Patent number: 10239763Abstract: A process for recovering sulfur from a tail gas stream comprising the steps of providing a tail gas stream to a chemical looping combustion (CLC) unit, the tail gas stream comprising a sulfide component, providing an oxygen carrier to the CLC unit, the oxygen carrier comprising a calcium carbonate, providing an air stream to the CLC unit, the air stream comprising oxygen, and reacting the sulfide component in the CLC unit with the calcium compound and the air to produce a product effluent, the product effluent comprising calcium sulfate.Type: GrantFiled: December 5, 2017Date of Patent: March 26, 2019Assignee: SAUDI ARABIAN OIL COMPANYInventors: Aadesh Harale, Mourad Younes, Maytham Musawi
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Publication number: 20190060824Abstract: Systems and processes for treating acid gas from a sour gas stream are provided. A chemical looping combustion (CLC) process is provided that uses CaCO3 to capture sulfur from the acid gas and produce CaSO4. An acid gas treatment unit may receive an acid gas from an acid gas removal unit and produce the CaSO4 and various gas and air streams for use in heat exchangers for steam production. The acid gas treatment unit may include a fuel reactor, an oxidizer reactor, and a calciner reactor. Another acid gas treatment unit may include a fuel reactor that includes the calciner function and an oxidizer reactor. A selective membrane module may be disposed between the sour gas stream and an acid gas removal unit to produce a H2S and CO2 permeate that is mixed with the acid gas stream provided to the acid gas treatment unit.Type: ApplicationFiled: August 22, 2017Publication date: February 28, 2019Inventors: Mourad Younes, Aadesh Harale, Maytham Musawi
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Patent number: 10213730Abstract: Systems and processes for treating acid gas from a sour gas stream are provided. A chemical looping combustion (CLC) process is provided that uses CaCO3 to capture sulfur from the acid gas and produce CaSO4. An acid gas treatment unit may receive an acid gas from an acid gas removal unit and produce the CaSO4 and various gas and air streams for use in heat exchangers for steam production. The acid gas treatment unit may include a fuel reactor, an oxidizer reactor, and a calciner reactor. Another acid gas treatment unit may include a fuel reactor that includes the calciner function and an oxidizer reactor. A selective membrane module may be disposed between the sour gas stream and an acid gas removal unit to produce a H2S and CO2 permeate that is mixed with the acid gas stream provided to the acid gas treatment unit.Type: GrantFiled: August 22, 2017Date of Patent: February 26, 2019Assignee: Saudi Arabian Oil CompanyInventors: Mourad Younes, Aadesh Harale, Maytham Musawi
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Publication number: 20180363978Abstract: Techniques for treating a natural gas feed stream include receiving a natural gas feed stream that includes one or more acid gases, one or more hydrocarbon fluids, and one or more non-hydrocarbon fluids; circulating the natural gas feed stream to a membrane module; separating, with the membrane module, at least a portion of the one or more acid gases into a permeate stream and at least a portion of the one or more hydrocarbon fluids into a reject stream; circulating the permeate stream to a distillation unit; and separating, in the distillation unit, the one or more acid gases from the one or more non-hydrocarbon fluids.Type: ApplicationFiled: June 13, 2018Publication date: December 20, 2018Applicant: Saudi Arabian Oil CompanyInventors: Jean-Pierre R. Ballaguet, Milind M. Vaidya, Iran D. Charry-Prada, Sebastien A. Duval, Aadesh Harale, Feras Hamad
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Patent number: 10014541Abstract: A method for producing a purified carbon dioxide product suitable for EOR and surplus electricity uses a vaporous hydrocarbon feed and a SOFC system. A SOFC system includes a condensate removal system, an acid gas removal system, a hydrodesulfurization system, a sorption bed system, a pre-reformer, a solid oxide fuel cell, a CO2 separations system and a CO2 dehydration system operable to form the purified carbon dioxide product, where the SOFC system is operable to produce surplus electricity from the electricity produced by the solid oxide fuel cell. A method of operating the pre-reformer to maximize the internal reforming capacity of a downstream solid oxide fuel cell uses a pre-reformer fluidly coupled on the upstream side of a solid oxide fuel cell. A method of enhancing hydrocarbon fluid recovery from a hydrocarbon-bearing formation using a SOFC system.Type: GrantFiled: March 30, 2017Date of Patent: July 3, 2018Assignee: Saudi Arabian Oil CompanyInventors: Aqil Jamal, Thang Pham, Aadesh Harale
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Patent number: 9981848Abstract: An enrichment apparatus and process for enriching a hydrogen sulfide concentration in an acid gas stream to create a hydrogen sulfide rich stream for feed to a Claus. The enrichment apparatus comprises a hydrocarbon selective separation unit operable to separate the acid gas stream into a hydrocarbon rich stream and a purified acid gas stream, wherein the acid gas stream comprises hydrogen sulfide, carbon dioxide, and hydrocarbons, a hydrogen sulfide selective separation unit operable to separate the purified acid gas stream to create the hydrogen sulfide rich stream and a hydrogen sulfide lean stream, the hydrogen sulfide rich stream having a concentration of hydrogen sulfide, and the Claus unit operable to recover sulfur from the carbon dioxide lean stream. The enrichment apparatus can include a carbon dioxide selective separation unit in fluid communication with the hydrogen sulfide selective separation unit, operable to separate the hydrogen sulfide rich stream.Type: GrantFiled: January 30, 2017Date of Patent: May 29, 2018Assignee: SAUDI ARABIAN OIL COMPANYInventors: Jean-Pierre R. Ballaguet, Milind M. Vaidya, Sebastien A. Duval, Aadesh Harale, Anwar H. Khawajah, Veera Venkata R. Tammana
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Patent number: 9796941Abstract: Methods for producing alcohols and oligomers contemporaneously from a hydrocarbon feed containing mixed butenes using an acid based catalyst are provided. Additionally, methods for producing fuel compositions having alcohols and oligomers prepared from mixed olefins are also provided as embodiments of the present invention. In certain embodiments, the catalyst can include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.Type: GrantFiled: March 2, 2015Date of Patent: October 24, 2017Assignee: SAUDI ARABIAN OIL COMPANYInventors: Wei Xu, Thamer A. Mohammad, Aadesh Harale, Kareemuddin M. Shaik
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Publication number: 20170207472Abstract: A method for producing a purified carbon dioxide product suitable for EOR and surplus electricity uses a vaporous hydrocarbon feed and a SOFC system. A SOFC system includes a condensate removal system, an acid gas removal system, a hydrodesulfurization system, a sorption bed system, a pre-reformer, a solid oxide fuel cell, a CO2 separations system and a CO2 dehydration system operable to form the purified carbon dioxide product, where the SOFC system is operable to produce surplus electricity from the electricity produced by the solid oxide fuel cell. A method of operating the pre-reformer to maximize the internal reforming capacity of a downstream solid oxide fuel cell uses a pre-reformer fluidly coupled on the upstream side of a solid oxide fuel cell. A method of enhancing hydrocarbon fluid recovery from a hydrocarbon-bearing formation using a SOFC system.Type: ApplicationFiled: March 30, 2017Publication date: July 20, 2017Applicant: SAUDI ARABIAN OIL COMPANYInventors: AQIL JAMAL, THANG PHAM, AADESH HARALE
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Publication number: 20170198231Abstract: Methods for producing alcohols and oligomers contemporaneously from a hydrocarbon feed containing mixed butenes using an acid based catalyst are provided. Additionally, methods for producing fuel compositions having alcohols and oligomers prepared from mixed olefins are also provided as embodiments of the present invention. In certain embodiments, the catalyst can include a dual phase catalyst system that includes a water soluble acid catalyst and a solid acid catalyst.Type: ApplicationFiled: March 29, 2017Publication date: July 13, 2017Inventors: Wei XU, Thamer A. MOHAMMAD, Aadesh HARALE, Kareemuddin M. SHAIK
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Publication number: 20170137288Abstract: An enrichment apparatus and process for enriching a hydrogen sulfide concentration in an acid gas stream to create a hydrogen sulfide rich stream for feed to a Claus. The enrichment apparatus comprises a hydrocarbon selective separation unit operable to separate the acid gas stream into a hydrocarbon rich stream and a purified acid gas stream, wherein the acid gas stream comprises hydrogen sulfide, carbon dioxide, and hydrocarbons, a hydrogen sulfide selective separation unit operable to separate the purified acid gas stream to create the hydrogen sulfide rich stream and a hydrogen sulfide lean stream, the hydrogen sulfide rich stream having a concentration of hydrogen sulfide, and the Claus unit operable to recover sulfur from the carbon dioxide lean stream. The enrichment apparatus can include a carbon dioxide selective separation unit in fluid communication with the hydrogen sulfide selective separation unit, operable to separate the hydrogen sulfide rich stream.Type: ApplicationFiled: January 30, 2017Publication date: May 18, 2017Inventors: Jean-Pierre R. Ballaguet, Milind M. Vaidya, Sebastien A. Duval, Aadesh Harale, Anwar H. Khawajah, Veera Venkata R. Tammana
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Patent number: 9647286Abstract: A method for producing a purified carbon dioxide product suitable for EOR and surplus electricity uses a vaporous hydrocarbon feed and a SOFC system. A SOFC system includes a condensate removal system, an acid gas removal system, a hydrodesulfurization system, a sorption bed system, a pre-reformer, a solid oxide fuel cell, a CO2 separations system and a CO2 dehydration system operable to form the purified carbon dioxide product, where the SOFC system is operable to produce surplus electricity from the electricity produced by the solid oxide fuel cell. A method of operating the pre-reformer to maximize the internal reforming capacity of a downstream solid oxide fuel cell uses a pre-reformer fluidly coupled on the upstream side of a solid oxide fuel cell. A method of enhancing hydrocarbon fluid recovery from a hydrocarbon-bearing formation using a SOFC system.Type: GrantFiled: November 16, 2012Date of Patent: May 9, 2017Assignee: Saudi Arabian Oil CompanyInventors: Aqil Jamal, Thang Pham, Aadesh Harale