Patents by Inventor Milind M. Vaidya
Milind M. Vaidya 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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Patent number: 10016728Abstract: A gas separation membrane module includes a seal between a higher pressure gas and a lower pressure gas. The seal includes a compressible sealing member in between sealing surfaces. At least one of the sealing surfaces has corrosion-resistant cladding provided over either low alloy steel or high alloy steel. The cladding reduce the possibility of a seal failure due to corrosion of low alloy or high alloy steel exposed to acid gases or condensed moisture containing acid gases dissolved therein while at the same not requiring that all surfaces of the membrane module exposed to acid gases be provided with cladding.Type: GrantFiled: June 28, 2016Date of Patent: July 10, 2018Assignees: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Etude Et L'Exploitation Des Procedes Georges Claude, Air Liquide Advanced Technolgies U.S. LLC, Saudi Arabian Oil CompanyInventors: Sudhir S. Kulkarni, Karl S. Beers, Jean-Pierre R. Ballaguet, Milind M. Vaidya, Sebastien A. Duval
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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: 9962659Abstract: A gas separation membrane module includes a seal between a higher pressure gas and a lower pressure gas. The seal includes a compressible sealing member in between sealing surfaces. At least one of the sealing surfaces has corrosion-resistant cladding provided over either low alloy steel or high alloy steel. The cladding reduce the possibility of a seal failure due to corrosion of low alloy or high alloy steel exposed to acid gases or condensed moisture containing acid gases dissolved therein while at the same not requiring that all surfaces of the membrane module exposed to acid gases be provided with cladding.Type: GrantFiled: June 28, 2016Date of Patent: May 8, 2018Assignees: AIR LIQUIDE ADVANCED TECHNOLOGIES U.S. LLC, L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE, SAUDI ARABIAN OIL COMPANYInventors: Sudhir S. Kulkarni, Karl S. Beers, Jean-Pierre R. Ballaguet, Milind M. Vaidya, Sebastien A. Duval
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Patent number: 9943802Abstract: A method for removing sulfur-containing compounds from a sulfur recovery unit (SRU) tail gas stream includes the steps of introducing the SRU tail gas stream to a reducing unit to produce a membrane feed, the reducing unit configured to reduce the sulfur-containing compounds to hydrogen sulfide, introducing the membrane feed to a hydrogen sulfide membrane unit, the hydrogen sulfide membrane unit comprising a membrane, wherein the membrane feed comprises hydrogen sulfide, allowing the membrane feed to contact a feed side of the membrane such that hydrogen sulfide permeates through the membrane to a permeate side, and collecting the retentate gases that fail to permeate through the membrane to produce a stack feed, wherein the stack feed comprises retentate gases.Type: GrantFiled: March 13, 2017Date of Patent: April 17, 2018Inventors: Jean-Pierre R. Ballaguet, Milind M. Vaidya, Feras Hamad, Sebastien A. Duval, Iran D. Charry-Prada
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Patent number: 9939405Abstract: A method for determining a salt concentration of a hydrocarbon fluid using a conductivity sensor and a hydrocarbon testing solution includes forming the hydrocarbon testing solution. The electropolymerizable monomer is operable to form a resultant associated polymer at a peak potential of the electropolymerizable polymer. The method includes introducing the hydrocarbon testing solution into the conductivity sensor. The method includes inducing a range of potential across the hydrocarbon testing solution such that at least a portion of the electropolymerizable monomer polymerizes. The range of induced potential includes the peak potential of the electropolymerizable polymer. The method includes detecting a range of electrical current associated with the range of potential induced. The method also includes the step of determining the salt concentration of the hydrocarbon fluid using the range of potential induced and the range of electrical current detected.Type: GrantFiled: December 10, 2015Date of Patent: April 10, 2018Assignee: Saudi Arabian Oil CompanyInventors: Naim Akmal, Rashed Mohammad Aleisa, Milind M. Vaidya
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Patent number: 9714925Abstract: A gas chromatographic method for analyzing natural gas and a natural gas upgrading system using the gas chromatographic method for analyzing natural gas. The method includes transporting the natural gas through a chiller, transporting the natural gas from the chiller to at least two gas upgrading membranes, and operating a gas chromatographic system having at least one upstream gas chromatograph and at least two downstream gas chromatographs. The at least one upstream gas chromatograph, the first downstream gas chromatograph, and the second downstream gas chromatograph all operate simultaneously and utilize the same heating oven to heat samples of natural gas.Type: GrantFiled: November 20, 2014Date of Patent: July 25, 2017Assignee: Saudi Arabian Oil CompanyInventors: Naim Akmal, Saeed Hasan Al-Shahrani, Anwar H. Al-Khawajah, Milind M. Vaidya, Jean-Pierre R. Ballaguet, Sebastien A. Duval
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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: 9593015Abstract: 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: April 15, 2015Date of Patent: March 14, 2017Assignee: 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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Publication number: 20170001150Abstract: A gas separation membrane module includes a seal between a higher pressure gas and a lower pressure gas. The seal includes a compressible sealing member in between sealing surfaces. At least one of the sealing surfaces has corrosion-resistant cladding provided over either low alloy steel or high alloy steel. The cladding reduce the possibility of a seal failure due to corrosion of low alloy or high alloy steel exposed to acid gases or condensed moisture containing acid gases dissolved therein while at the same not requiring that all surfaces of the membrane module exposed to acid gases be provided with cladding.Type: ApplicationFiled: June 28, 2016Publication date: January 5, 2017Applicants: AIR LIQUIDE ADVANCED TECHNOLOGIES U.S. LLC, L'Air Liquide, Societe Anonyme pour I'Etude et I'Etude et I'Exploitation des Procedes Georges Cla, SAUDI ARABIAN OIL COMPANYInventors: Sudhir S. KULKARNI, Karl S. Beers, Jean-Pierre R. Ballaguet, Milind M. Vaidya, Sebastien A. Duval
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Publication number: 20170001149Abstract: A gas separation membrane module includes a seal between a higher pressure gas and a lower pressure gas. The seal includes a compressible sealing member in between sealing surfaces. At least one of the sealing surfaces has corrosion-resistant cladding provided over either low alloy steel or high alloy steel. The cladding reduce the possibility of a seal failure due to corrosion of low alloy or high alloy steel exposed to acid gases or condensed moisture containing acid gases dissolved therein while at the same not requiring that all surfaces of the membrane module exposed to acid gases be provided with cladding.Type: ApplicationFiled: June 28, 2016Publication date: January 5, 2017Applicants: Air Liquide Advanced Technologies U.S. LP, L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, SAUDI ARABIAN OIL COMPANYInventors: Sudhir S. KULKARNI, Karl S. BEERS, Jean-Pierre R. BALLAGUET, Milind M. VAIDYA, Sebastien A. DUVAL
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Publication number: 20170001148Abstract: A gas separation membrane module includes a seal between a higher pressure gas and a lower pressure gas. The seal includes a compressible sealing member in between sealing surfaces. At least one of the sealing surfaces has corrosion-resistant cladding provided over either low alloy steel or high alloy steel. The cladding reduce the possibility of a seal failure due to corrosion of low alloy or high alloy steel exposed to acid gases or condensed moisture containing acid gases dissolved therein while at the same not requiring that all surfaces of the membrane module exposed to acid gases be provided with cladding.Type: ApplicationFiled: June 30, 2015Publication date: January 5, 2017Inventors: Sudhir S. KULKARNI, Karl S. BEERS, Jean-Pierre R. BALLAGUET, Milind M. VAIDYA, Sebastien A. DUVAL
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Publication number: 20170001147Abstract: A gas separation membrane module includes a seal between a higher pressure gas and a lower pressure gas. The seal includes a compressible sealing member in between sealing surfaces. At least one of the sealing surfaces has corrosion-resistant cladding provided over either low alloy steel or high alloy steel. The cladding reduce the possibility of a seal failure due to corrosion of low alloy or high alloy steel exposed to acid gases or condensed moisture containing acid gases dissolved therein while at the same not requiring that all surfaces of the membrane module exposed to acid gases be provided with cladding.Type: ApplicationFiled: June 30, 2015Publication date: January 5, 2017Inventors: Sudhir S. KULKARNI, Karl S. BEERS, Jean-Pierre R. BALLAGUET, Milind M. VAIDYA, Sebastien A. DUVAL
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Patent number: 9513273Abstract: A method for determining a salt concentration of a hydrocarbon fluid using a conductivity sensor and a hydrocarbon testing solution includes forming the hydrocarbon testing solution. The electropolymerizable monomer is operable to form a resultant associated polymer at a peak potential of the electropolymerizable polymer. The method includes introducing the hydrocarbon testing solution into the conductivity sensor. The method includes inducing a range of potential across the hydrocarbon testing solution such that at least a portion of the electropolymerizable monomer polymerizes. The range of induced potential includes the peak potential of the electropolymerizable polymer. The method includes detecting a range of electrical current associated with the range of potential induced. The method also includes the step of determining the salt concentration of the hydrocarbon fluid using the range of potential induced and the range of electrical current detected.Type: GrantFiled: December 29, 2015Date of Patent: December 6, 2016Assignee: Saudi Arabian Oil CompanyInventors: Naim Akmal, Rashed Mohammad Aleisa, Milind M. Vaidya
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Publication number: 20160146764Abstract: A gas chromatographic method for analyzing natural gas and a natural gas upgrading system using the gas chromatographic method for analyzing natural gas. The method includes transporting the natural gas through a chiller, transporting the natural gas from the chiller to at least two gas upgrading membranes, and operating a gas chromatographic system having at least one upstream gas chromatograph and at least two downstream gas chromatographs. The at least one upstream gas chromatograph, the first downstream gas chromatograph, and the second downstream gas chromatograph all operate simultaneously and utilize the same heating oven to heat samples of natural gas.Type: ApplicationFiled: November 20, 2014Publication date: May 26, 2016Applicant: Saudi Arabian Oil CompanyInventors: Naim Akmal, Saeed Hasan Al-Shahrani, Anwar H. Al-Khawajah, Milind M. Vaidya, Jean-Pierre R. Ballaguet, Sebastien A. Duval
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Publication number: 20160131632Abstract: A method for determining a salt concentration of a hydrocarbon fluid using a conductivity sensor and a hydrocarbon testing solution includes forming the hydrocarbon testing solution. The electropolymerizable monomer is operable to form a resultant associated polymer at a peak potential of the electropolymerizable polymer. The method includes introducing the hydrocarbon testing solution into the conductivity sensor. The method includes inducing a range of potential across the hydrocarbon testing solution such that at least a portion of the electropolymerizable monomer polymerizes. The range of induced potential includes the peak potential of the electropolymerizable polymer. The method includes detecting a range of electrical current associated with the range of potential induced. The method also includes the step of determining the salt concentration of the hydrocarbon fluid using the range of potential induced and the range of electrical current detected.Type: ApplicationFiled: December 29, 2015Publication date: May 12, 2016Inventors: Naim Akmal, Rashed Mohammad Aleisa, Milind M. Vaidya
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Publication number: 20160097735Abstract: A method for determining a salt concentration of a hydrocarbon fluid using a conductivity sensor and a hydrocarbon testing solution includes forming the hydrocarbon testing solution. The electropolymerizable monomer is operable to form a resultant associated polymer at a peak potential of the electropolymerizable polymer. The method includes introducing the hydrocarbon testing solution into the conductivity sensor. The method includes inducing a range of potential across the hydrocarbon testing solution such that at least a portion of the electropolymerizable monomer polymerizes. The range of induced potential includes the peak potential of the electropolymerizable polymer. The method includes detecting a range of electrical current associated with the range of potential induced. The method also includes the step of determining the salt concentration of the hydrocarbon fluid using the range of potential induced and the range of electrical current detected.Type: ApplicationFiled: December 10, 2015Publication date: April 7, 2016Inventors: Naim Akmal, Rashed Mohammad Aleisa, Milind M. Vaidya
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Patent number: 9267909Abstract: A method for determining a salt concentration of a hydrocarbon fluid using a conductivity sensor and a hydrocarbon testing solution includes forming the hydrocarbon testing solution. The electropolymerizable monomer is operable to form a resultant associated polymer at a peak potential of the electropolymerizable polymer. The method includes introducing the hydrocarbon testing solution into the conductivity sensor. The method includes inducing a range of potential across the hydrocarbon testing solution such that at least a portion of the electropolymerizable monomer polymerizes. The range of induced potential includes the peak potential of the electropolymerizable polymer. The method includes detecting a range of electrical current associated with the range of potential induced. The method also includes the step of determining the salt concentration of the hydrocarbon fluid using the range of potential induced and the range of electrical current detected.Type: GrantFiled: July 12, 2013Date of Patent: February 23, 2016Assignee: Saudi Arabian Oil CompanyInventors: Naim Akmal, Rashed Mohammad Aleisa, Milind M. Vaidya
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Publication number: 20150298972Abstract: 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: April 15, 2015Publication date: October 22, 2015Inventors: 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: 8895641Abstract: Disclosed herein are an asphalt concrete mixture, an asphalt binder composition, and methods of preparing the related compositions. The asphalt binder compositions include a polyphosphoric acid, a macromolecular polymer having a saturated backbone with macromolecular modifications, sulfur, and non-surfactant additives based on wax chemistry. The compositions are capable of being performance graded and being used in warm mix asphalt applications.Type: GrantFiled: March 28, 2014Date of Patent: November 25, 2014Assignee: Saudi Arabian Oil CompanyInventors: Milind M. Vaidya, Anwar H. Khawajah, Rashid M. Othman, Laurand Lewandowski
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Patent number: 8883887Abstract: A Performance Grade sulfur-extended asphalt binder emulsion is made by combining a viscosifier, an emulsifier, a Performance Grade sulfur-extended asphalt binder, optionally a saponification agent, and a base aqueous solution. During creation of the asphalt emulsion, none of the components or combinations of them exceeds 275° F. The Performance Grade sulfur-extended asphalt binder composition is made by combining free or element sulfur, a linear alkane material, optionally a saturated-backbone polymer modifier, optionally a non-aqueous acid, and a base asphalt. The disclosed Performance Graded sulfur-extended asphalt binder and Performance Graded asphalt sulfur-extended asphalt binder emulsion allow operators using these products directly or in combination with aggregates and other materials to mix and blend the compositions, and apply the compositions in the field, at temperatures less than 300° F.Type: GrantFiled: October 26, 2012Date of Patent: November 11, 2014Assignee: Saudi Arabian Oil CompanyInventors: Milind M. Vaidya, Anwar H. Khawajah, Jean-Pierre R. Ballaguet, Laurand Lewandowski