Patents by Inventor Sylvain VOVARD
Sylvain VOVARD 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: 11952870Abstract: The method comprises supplying, at a construction site, of a functional module comprising a hybrid cooler; verifying onsite the exploitation of the equipment of the functional module; mounting the functional module on a support structure; moving the structure to an exploitation site on the expanse of water. The verification involves passing a flow to be cooled through the air cooler of the hybrid cooler, the flow being cooled exclusively by a flow of air circulating through the air cooler of the hybrid cooler. The exploitation of hydrocarbons on the expanse of water involves the passage of a flow to be cooled through the water cooler of the hybrid cooling system, the flow being cooled by heat exchange with water taken from the expanse of water circulating through the water cooler.Type: GrantFiled: May 21, 2019Date of Patent: April 9, 2024Assignee: TECHNIP FRANCEInventors: Benoit Laflotte, Sylvain Vovard, Dominique Claude Jean Gadelle
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Publication number: 20230408187Abstract: A method for producing an LNG from natural gas, comprising liquefaction of at least a first part of the natural gas in a first heat exchanger by heat exchange with a first mixed refrigerant fluid in a closed cycle, sub-cooling of liquefied natural gas in a second heat exchanger by heat exchange with a second refrigerant fluid of a second refrigeration cycle, expansion of the sub-cooled liquefied natural gas stream and admission into a flash gas separator, withdrawal of liquefied natural gas at the bottom of the separator, and withdrawal, at the head, of a gas flow, and supply of the second refrigeration cycle by at least a part of said gas flow.Type: ApplicationFiled: November 9, 2021Publication date: December 21, 2023Inventors: Sylvain Vovard, Dominique Claude Jean Gadelle
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Publication number: 20230408191Abstract: A method includes: recovering and compressing a head stream coming from a separation column, to form a stream of compressed purified natural gas; liquefying the stream of compressed purified natural gas in a liquefaction unit to form a stream of a pressurized liquefied natural gas; flash expanding of the stream of pressurized liquefied natural gas and recovering in a storage; recovering and compressing of a flow of flash gas coming from the expanding; separating the flow of compressed flash gas (132) into a fuel stream and a recycle stream; cooling and expanding the recycle stream, then introducing the cooled and expanded recycle stream at a head stage of the separation column.Type: ApplicationFiled: November 9, 2021Publication date: December 21, 2023Applicant: TECHNIP ENERGIES FRANCEInventors: Sylvain Vovard, Benoit Laflotte
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Patent number: 11674749Abstract: A method and system for liquefying a natural gas feed stream and removing nitrogen therefrom.Type: GrantFiled: March 13, 2020Date of Patent: June 13, 2023Assignee: Air Products and Chemicals, Inc.Inventors: Sylvain Vovard, Justin David Bukowski, Fei Chen, Mark Julian Roberts
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Patent number: 11480389Abstract: A liquefaction system is capable of sequentially or simultaneously liquefying multiple feed streams of hydrocarbons having different normal bubble points with minimal flash. The liquefying heat exchanger has separate circuits for handling multiple feed streams. The feed stream with the lowest normal boiling point is sub-cooled sufficiently to suppress most of the flash. Feed streams with relatively high normal boiling points are cooled to substantially the same temperature, then blended with bypass streams to maintain each product near its normal bubble point. The system can also liquefy one stream at a time by using a dedicated circuit or by allocating the same feed to multiple circuits.Type: GrantFiled: March 2, 2020Date of Patent: October 25, 2022Assignee: Air Products and Chemicals, Inc.Inventors: Laurent Marc Brussol, David Joseph Holzer, Sylvain Vovard, Russell Shnitser, Adam Adrian Brostow, Mark Julian Roberts
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Publication number: 20220074287Abstract: The method comprises supplying, at a construction site, of a functional module comprising a hybrid cooler; verifying onsite the exploitation of the equipment of the functional module; mounting the functional module on a support structure; moving the structure to an exploitation site on the expanse of water. The verification involves passing a flow to be cooled through the air cooler of the hybrid cooler, the flow being cooled exclusively by a flow of air circulating through the air cooler of the hybrid cooler. The exploitation of hydrocarbons on the expanse of water involves the passage of a flow to be cooled through the water cooler of the hybrid cooling system, the flow being cooled by heat exchange with water taken from the expanse of water circulating through the water cooler.Type: ApplicationFiled: May 21, 2019Publication date: March 10, 2022Inventors: Benoit Laflotte, Sylvain Vovard, Dominique Claude Jean Gadelle
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Publication number: 20210285721Abstract: A method and system for liquefying a natural gas feed stream and removing nitrogen therefrom.Type: ApplicationFiled: March 13, 2020Publication date: September 16, 2021Applicant: Air Products and Chemicals, Inc.Inventors: Sylvain Vovard, Justin David Bukowski, Fei Chen, Mark Julian Roberts
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Patent number: 10995910Abstract: The process comprises the following steps: mixing a gaseous stream of flash gas and a gaseous stream of boil-off gas to form a mixed gaseous flow; compressing the mixed gaseous flow in at least one compression apparatus to form a flow of compressed combustible gas; withdrawing a bypass flow in the flow of compressed combustible gas; compressing the bypass flow in at least one downstream compressor; cooling and expanding the compressed bypass flow; reheating at least a first stream derived from the expanded bypass flow in at least one downstream heat exchanger, reintroducing the first reheated stream in the mixed gaseous flow upstream from the compression apparatus.Type: GrantFiled: July 12, 2016Date of Patent: May 4, 2021Assignee: TECHNIP FRANCEInventors: Sylvain Vovard, Vincent Tirilly
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Patent number: 10744447Abstract: The method includes the introduction of a feed flow into a first flask, the dynamic; expansion of the gaseous flow issuing from the flask in a turbine, then its introduction into a first purification column. It comprises the production at the head of the first column of a purified gas and the recovery at the bottom of the first column of a liquefied bottom gas, which is introduced, after expansion, into a second column for elimination of the C5+ hydrocarbons. The purified head natural gas issuing from the first column is heated in a first heat exchanger by thermal exchange with a feed gas. The method includes the compression of the gaseous head flow of the second column in a compressor before its introduction into a second separator flask.Type: GrantFiled: March 25, 2010Date of Patent: August 18, 2020Assignee: TECHNIP FRANCEInventors: Henri Paradowski, Sylvain Vovard
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Publication number: 20200200471Abstract: A liquefaction system is capable of sequentially or simultaneously liquefying multiple feed streams of hydrocarbons having different normal bubble points with minimal flash. The liquefying heat exchanger has separate circuits for handling multiple feed streams. The feed stream with the lowest normal boiling point is sub-cooled sufficiently to suppress most of the flash. Feed streams with relatively high normal boiling points are cooled to substantially the same temperature, then blended with bypass streams to maintain each product near its normal bubble point. The system can also liquefy one stream at a time by using a dedicated circuit or by allocating the same feed to multiple circuits.Type: ApplicationFiled: March 2, 2020Publication date: June 25, 2020Applicant: Air Products and Chemicals, Inc.Inventors: Laurent Marc Brussol, David Joseph Holzer, Sylvain Vovard, Russell Shnitser, Adam Adrian Brostow, Mark Julian Roberts
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Patent number: 10619917Abstract: A liquefaction system is capable of sequentially or simultaneously liquefying multiple feed streams of hydrocarbons having different normal bubble points with minimal flash. The liquefying heat exchanger has separate circuits for handling multiple feed streams. The feed stream with the lowest normal boiling point is sub-cooled sufficiently to suppress most of the flash. Feed streams with relatively high normal boiling points are cooled to substantially the same temperature, then blended with bypass streams to maintain each product near its normal bubble point. The system can also liquefy one stream at a time by using a dedicated circuit or by allocating the same feed to multiple circuits.Type: GrantFiled: September 13, 2017Date of Patent: April 14, 2020Assignee: Air Products and Chemicals, Inc.Inventors: Laurent Marc Brussol, David Joseph Holzer, Sylvain Vovard, Russell Shnitser, Adam Adrian Brostow, Mark Julian Roberts
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Publication number: 20190078840Abstract: A liquefaction system is capable of sequentially or simultaneously liquefying multiple feed streams of hydrocarbons having different normal bubble points with minimal flash. The liquefying heat exchanger has separate circuits for handling multiple feed streams. The feed stream with the lowest normal boiling point is sub-cooled sufficiently to suppress most of the flash. Feed streams with relatively high normal boiling points are cooled to substantially the same temperature, then blended with bypass streams to maintain each product near its normal bubble point. The system can also liquefy one stream at a time by using a dedicated circuit or by allocating the same feed to multiple circuits.Type: ApplicationFiled: September 13, 2017Publication date: March 14, 2019Applicant: Air Products and Chemicals, Inc.Inventors: Laurent Marc Brussol, David Joseph Holzer, Sylvain Vovard, Russell Shnitser, Adam Adrian Brostow, Mark Julian Roberts
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Publication number: 20180202610Abstract: The process comprises the following steps: mixing a gaseous stream of flash gas and a gaseous stream of boil-off gas to form a mixed gaseous flow; compressing the mixed gaseous flow in at least one compression apparatus to form a flow of compressed combustible gas; withdrawing a bypass flow in the flow of compressed combustible gas; compressing the bypass flow in at least one downstream compressor; cooling and expanding the compressed bypass flow; reheating at least a first stream derived from the expanded bypass flow in at least one downstream heat exchanger, reintroducing the first reheated stream in the mixed gaseous flow upstream from the compression apparatus.Type: ApplicationFiled: July 12, 2016Publication date: July 19, 2018Applicant: Technip FranceInventors: Sylvain VOVARD, Vincent TIRILLY
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Patent number: 9506690Abstract: A process for the production of a subcooled liquefied natural gas stream from a natural gas feed stream. Passing a first natural gas feed stream through a first heat exchanger for precooling by heat exchange with a first stream of gaseous refrigerant produced in a first refrigeration cycle comprising a first dynamic expansion turbine. Passing the precooled feed stream through a second heat exchanger for liquefying by heat exchange with a second stream of gaseous refrigerant produced in a second refrigeration cycle comprising a second dynamic expansion turbine. Passing the liquefied natural gas stream through a third heat exchanger for subcooling the liquefied gas by heat exchange with a third refrigerant stream produced in a third refrigeration cycle comprising a third dynamic expansion turbine separate from the first turbine and the second turbine.Type: GrantFiled: November 24, 2009Date of Patent: November 29, 2016Assignee: TECHNIP FRANCEInventors: Henri Paradowski, Sylvain Vovard
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Patent number: 9316434Abstract: This process includes the cooling of an introduction stream (72) inside an upstream heat exchanger (28). It includes the introduction of the cooled introduction stream (76) into a fractionating column (50) and the tapping at the bottom portion of the column (50) of the denitrided stream of hydrocarbons. It also includes the introduction of a stream (106) rich in nitrogen obtained from the head portion of the column (50) into a separation container (60) and the recovery of the head gaseous stream from the separation container (60) in order to form the stream (20) which is rich in helium. The liquid stream (110) is obtained from the bottom of the first separation container (60) is separated into a liquid nitrogen stream (18) and a first reflux stream (114) which is introduced as reflux into the head of the fractionating column (50).Type: GrantFiled: October 2, 2009Date of Patent: April 19, 2016Assignee: TECHNIP FRANCEInventors: Henri Paradowski, Sylvain Vovard
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Publication number: 20110226009Abstract: This process includes the cooling of an introduction stream (72) inside an upstream heat exchanger (28). It includes the introduction of the cooled introduction stream (76) into a fractionating column (50) and the tapping at the bottom portion of the column (50) of the denitrided stream of hydrocarbons. It also includes the introduction of a stream (106) rich in nitrogen obtained from the head portion of the column (50) into a separation container (60) and the recovery of the head gaseous stream from the separation container (60) in order to form the stream (20) which is rich in helium. The liquid stream (110) is obtained from the bottom of the first separation container (60) is separated into a liquid nitrogen stream (18) and a first reflux stream (114) which is introduced as reflux into the head of the fractionating column (50).Type: ApplicationFiled: October 2, 2009Publication date: September 22, 2011Inventors: Henri Paradowski, Sylvain Vovard
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Publication number: 20100242536Abstract: The method includes the introduction of a feed flow into a first flask, the dynamic expansion of the gaseous flow issuing from the flask in a turbine, then its introduction into a first purification column. It comprises the production at the head of the first column of a purified gas and the recovery at the bottom of the first column of a liquefied bottom gas, which is introduced, after expansion, into a second column for elimination of the C5+ hydrocarbons. The purified head natural gas issuing from the first column is heated in a first heat exchanger by thermal exchange with a feed gas. The method includes the compression of the gaseous head flow of the second column in a compressor before its introduction into a second separator flask.Type: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Inventors: Henri PARADOWSKI, Sylvain VOVARD
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Publication number: 20100126214Abstract: A process for the production of a subcooled liquefied natural gas stream from a natural gas feed stream. Passing a first natural gas feed stream through a first heat exchanger for precooling by heat exchange with a first stream of gaseous refrigerant produced in a first refrigeration cycle comprising a first dynamic expansion turbine. Passing the precooled feed stream through a second heat exchanger for liquefying by heat exchange with a second stream of gaseous refrigerant produced in a second refrigeration cycle comprising a second dynamic expansion turbine. Passing the liquefied natural gas stream through a third heat exchanger for subcooling the liquefied gas by heat exchange with a third refrigerant stream produced in a third refrigeration cycle comprising a third dynamic expansion turbine separate from the first turbine and the second turbine.Type: ApplicationFiled: November 24, 2009Publication date: May 27, 2010Inventors: Henri PARADOWSKI, Sylvain VOVARD