Patents by Inventor Alfred Gubrinski
Alfred Gubrinski 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: 11634325Abstract: The invention relates to an absorber column and to the use thereof for separation of unwanted, especially acidic, gas constituents, for example carbon dioxide and hydrogen sulfide, from a crude synthesis gas by absorption with an absorbent, especially under low load states of the absorber column in relation to the synthesis gas velocity. According to the invention, a defined concentration of carbon dioxide in the clean synthesis gas is established by mixing at least a portion of the absorbent regenerated by flash regeneration with the absorbent regenerated by means of hot regeneration prior to the recycling thereof into the absorber column.Type: GrantFiled: December 10, 2018Date of Patent: April 25, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Alfred Gubrinski, Sandra Jensen, Sharon Corbet
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Patent number: 11628392Abstract: An absorption column including at least one external heat exchange circuit for cooling or heating the absorption liquid, including one or more serially connected heat exchangers, wherein the junction of the pipeline for withdrawal of the absorption liquid from the column is disposed above the junction of the pipeline into the first heat exchanger in the flow direction, wherein the pipeline also includes a dumped bed.Type: GrantFiled: August 2, 2018Date of Patent: April 18, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaideInventors: Sophia Schmidt, Dorit Rappold, Christian Frey, Sharon Corbet, Alfred Gubrinski
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Patent number: 11578284Abstract: A process and a plant for purifying a crude gas stream containing sulfur components and hydrocarbons by gas scrubbing using a scrubbing medium which is selective for sulfur components in an absorption column. Heavy hydrocarbons and heavy mercaptans are removed from the crude gas in a lower section of the absorption column and the resulting, loaded scrubbing medium stream is fed separately from the other loaded scrubbing medium streams to a hot regeneration column. A vapor stream enriched in water, hydrocarbons and sulfur components is obtained as overhead product from the hot regeneration column and this stream is cooled to below its dew point and is separated in a gas-liquid-liquid phase separation apparatus. The resulting, organic liquid phase contains heavy hydrocarbons and heavy mercaptans and can thus be discharged from the process or the plant, as a result of which accumulation thereof in the scrubbing medium is prevented.Type: GrantFiled: June 29, 2021Date of Patent: February 14, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Alfred Gubrinski, Dorit Rappold, Michael Wilken, Matthias Linicus
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Patent number: 11555158Abstract: The invention relates to a gas scrubbing process and a corresponding plant for removal of acidic gas constituents from crude synthesis gas which make it possible by treatment of shifted and of unshifted crude synthesis gas in the gas scrubbing process and by combination of the thus-obtained partial product streams to produce a plurality of gas products having different compositions. In addition, the invention ensures that the flash gases obtained during decompression of the laden scrubbing medium are utilized materially and/or energetically in advantageous fashion.Type: GrantFiled: May 29, 2019Date of Patent: January 17, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Alfred Gubrinski, Pankaj Puri, Sharon Corbet, Dorit Rappold
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Patent number: 11484826Abstract: The invention relates to a gas scrubbing process for purifying crude synthesis gas with methanol as a physical absorption medium, wherein an acid gas comprising at least hydrogen sulfide (H2S) is produced. The acid gas is produced in a hot regenerator arranged downstream of an absorption apparatus and subsequently separated from gaseous methanol in an acid gas separator by cooling and condensation. The acid gas separator has a condensation region and an absorption region, wherein both regions are separated from one another by a gas-permeable tray. This has the result that impurities such as hydrogen cyanide and/or ammonia outgassing from a first acid gas substream are not reabsorbed in the condensation region of the acid gas separator, thus avoiding an accumulation of impurities in the hot regenerator or other parts of the gas scrubbing plant. The invention further relates to an acid gas separator and to the use of the acid gas separator according to the invention in a process according to the invention.Type: GrantFiled: September 27, 2019Date of Patent: November 1, 2022Assignee: L'Air Liquide, Société Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Sharon Corbet, Alfred Gubrinski, Pankaj Puri, Dorit Rappold, Sophia Schmidt
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Patent number: 11426677Abstract: Plant and process for separation of sulfur-containing components, H2S, COS and mercaptans from methanol which is used as absorbent within the Rectisol process by hot regeneration of the methanol laden in the absorption and an additional step for separation of the mercaptans from the methanol by stripping.Type: GrantFiled: October 5, 2018Date of Patent: August 30, 2022Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Sophia Schmidt, Alfred Gubrinski, Sharon Corbet, Hincal Leichner
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Patent number: 11400409Abstract: The invention relates to a process for aftertreatment of gas streams in which unwanted components are present in an amount that varies irregularly in a periodic manner or over time and/or in a varying concentration, by means of an absorption or gas scrubbing process. For this purpose, during the entry of the desorption peak into the gas scrubbing apparatus, the amount of scrubbing medium is increased proceeding from a normal value during a first phase and, after the end of the desorption peak, the amount of scrubbing medium is returned back to the normal value during a second phase, wherein the laden scrubbing media are collected in different intermediate vessels during the two phases, mixed and released as a mixture to a downstream scrubbing medium regeneration apparatus.Type: GrantFiled: March 8, 2019Date of Patent: August 2, 2022Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Alfred Gubrinski, Dorit Rappold, Michael Strozyk, Sophia Schmidt
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Patent number: 11389762Abstract: The invention relates to a process for removal of metal carbonyls from crude synthesis gas in a gas scrubbing process with a physical scrubbing medium. Scrubbing medium laden with hydrogen sulfide (H2S) and metal carbonyls is sent to a treatment vessel having a residence time region and a scrubbing region. Metal carbonyls are precipitated from the laden scrubbing medium as metal sulfides in the residence time region. The scrubbing region is supplied with a regenerated scrubbing medium.Type: GrantFiled: August 29, 2019Date of Patent: July 19, 2022Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Sharon Corbet, Alfred Gubrinski, Sophia Schmidt
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Publication number: 20210403822Abstract: A process and a plant for purifying a crude gas stream containing sulfur components and hydrocarbons by gas scrubbing using a scrubbing medium which is selective for sulfur components in an absorption column. Heavy hydrocarbons and heavy mercaptans are removed from the crude gas in a lower section of the absorption column and the resulting, loaded scrubbing medium stream is fed separately from the other loaded scrubbing medium streams to a hot regeneration column. A vapor stream enriched in water, hydrocarbons and sulfur components is obtained as overhead product from the hot regeneration column and this stream is cooled to below its dew point and is separated in a gas-liquid-liquid phase separation apparatus. The resulting, organic liquid phase contains heavy hydrocarbons and heavy mercaptans and can thus be discharged from the process or the plant, as a result of which accumulation thereof in the scrubbing medium is prevented.Type: ApplicationFiled: June 29, 2021Publication date: December 30, 2021Inventors: Alfred Gubrinski, Dorit Rappold, Michael Wilken, Matthias Linicus
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Publication number: 20210323819Abstract: The invention relates to a process for removal of metal carbonyl from a gas mixture. The gas mixture is subjected to a gas scrubbing in an absorber with methanol as the physical scrubbing liquid to obtain the laden methanol. The metals of the metal carbonyls are at least partially precipitated from the laden methanol as metal sulfides to obtain a first suspension comprising metal sulfides and at least a proportion of the laden methanol. The first suspension is sent to a treatment vessel and therein brought into direct contact with water vapor in countercurrent to obtain a second suspension comprising at least water, methanol and metal sulfides and a gaseous product. The second suspension and the gaseous product are withdrawn from the treatment vessel as separate streams.Type: ApplicationFiled: August 13, 2019Publication date: October 21, 2021Inventors: Sharon CORBET, Alfred GUBRINSKI, Sophia SCHMIDT
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Publication number: 20210269728Abstract: The invention relates to a gas scrubbing process and a corresponding plant for removal of acidic gas constituents from crude synthesis gas which make it possible by treatment of shifted and of unshifted crude synthesis gas in the gas scrubbing process and by combination of the thus-obtained partial product streams to produce a plurality of gas products having different compositions. In addition, the invention ensures that the flash gases obtained during decompression of the laden scrubbing medium are utilized materially and/or energetically in advantageous fashion.Type: ApplicationFiled: May 29, 2019Publication date: September 2, 2021Inventors: Alfred GUBRINSKI, Pankaj PURI, Sharon CORBET, Dorit RAPPOLD
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Publication number: 20210260521Abstract: The invention relates to a process for removal of unwanted, in particular acidic gas constituents, for example carbon dioxide and hydrogen sulfide, from a crude synthesis gas by gas scrubbing with a scrubbing medium. According to the invention the flash gases obtained during the decompression of the laden scrubbing medium are supplied to a recompressor in order to recycle these to the crude synthesis gas and thus utilize them materially after the recompression. Alternatively or in addition the flash gases may also be supplied to a decompression turbine to recover refrigeration and mechanical work. If the recompressor and/or the decompression turbine are/is designed to have multiple stages, the flash gases obtained at different pressure levels are preferably supplied to a corresponding pressure level of the recompressor and/or of the decompression turbine.Type: ApplicationFiled: May 29, 2019Publication date: August 26, 2021Inventors: Alfred GUBRINSKI, Sharon CORBET, Dorit RAPPOLD, Pankaj PURI
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Publication number: 20210008490Abstract: The invention relates to a process for aftertreatment of gas streams in which unwanted components are present in an amount that varies irregularly in a periodic manner or over time and/or in a varying concentration, by means of an absorption or gas scrubbing process. For this purpose, during the entry of the desorption peak into the gas scrubbing apparatus, the amount of scrubbing medium is increased proceeding from a normal value during a first phase and, after the end of the desorption peak, the amount of scrubbing medium is returned back to the normal value during a second phase, wherein the laden scrubbing media are collected in different intermediate vessels during the two phases, mixed and released as a mixture to a downstream scrubbing medium regeneration apparatus.Type: ApplicationFiled: March 8, 2019Publication date: January 14, 2021Inventors: Alfred GUBRINSKI, Dorit RAPPOLD, Michael STROZYK, Sophia SCHMIDT
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Publication number: 20200407221Abstract: The invention relates to a process for removal of unwanted, in particular acidic, gas constituents, for example carbon dioxide and hydrogen sulfide, from a crude synthesis gas containing metal carbonyls by gas scrubbing with a scrubbing medium. According to the invention water is added directly into the feed conduit of the methanol water mixture containing metal sulfides before the introduction thereof into the methanol-water separating column and/or water is injected directly into the methanol-water separating column at at least one point. This avoids deposits or encrustations of metal sulfide particles in the methanol-water separating column.Type: ApplicationFiled: February 22, 2019Publication date: December 31, 2020Inventors: Alfred GUBRINSKI, Sophia SCHMIDT, Dorit RAPPOLD, Diana-Maria GOMEZ-LOZANO
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Patent number: 10874977Abstract: The invention relates to a process and a plant for removal of acidic gas constituents from synthesis gas by absorption in a physical scrubbing medium. A first scrubbing medium laden with at least carbon dioxide (CO2) is supplied to a decompression vessel for depressurization from a first absorption apparatus via a first feed conduit. Furthermore, a second scrubbing medium laden with at least carbon dioxide (CO2) is supplied to the decompression vessel for depressurization from a second absorption apparatus via a second feed conduit. The carbon dioxide concentration in the first laden scrubbing medium is higher than the carbon dioxide concentration in the second laden scrubbing medium.Type: GrantFiled: September 5, 2019Date of Patent: December 29, 2020Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Explotation Des Procedes Georges ClaudeInventors: Sharon Corbet, Micro Guan, Alfred Gubrinski, Dorit Rappold, Sophia Schmidt
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Publication number: 20200346133Abstract: Plant and process for separation of sulfur-containing components, H2S, COS and mercaptans from methanol which is used as absorbent within the Rectisol process by hot regeneration of the methanol laden in the absorption and an additional step for separation of the mercaptans from the methanol by stripping.Type: ApplicationFiled: October 5, 2018Publication date: November 5, 2020Inventors: Sophia SCHMIDT, Alfred GUBRINSKI, Sharon CORBET, Hincal LEICHNER
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Publication number: 20200339418Abstract: The invention relates to an absorber column and to the use thereof for separation of unwanted, especially acidic, gas constituents, for example carbon dioxide and hydrogen sulfide, from a crude synthesis gas by absorption with an absorbent, especially under low load states of the absorber column in relation to the synthesis gas velocity. According to the invention, a defined concentration of carbon dioxide in the clean synthesis gas is established by mixing at least a portion of the absorbent regenerated by flash regeneration with the absorbent regenerated by means of hot regeneration prior to the recycling thereof into the absorber column.Type: ApplicationFiled: December 10, 2018Publication date: October 29, 2020Inventors: Alfred GUBRINSKI, Sandra JENSEN, Sharon CORBET
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Publication number: 20200238213Abstract: An absorption column including at least one external heat exchange circuit for cooling or heating the absorption liquid, including one or more serially connected heat exchangers, wherein the junction of the pipeline for withdrawal of the absorption liquid from the column is disposed above the junction of the pipeline into the first heat exchanger in the flow direction, wherein the pipeline also includes a dumped bedType: ApplicationFiled: August 2, 2018Publication date: July 30, 2020Inventors: Sophia SCHMIDT, Dorit RAPPOLD, Christian FREY, Sharon CORBET, Alfred GUBRINSKI
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Publication number: 20200188838Abstract: The invention relates to a process for regenerating a laden scrubbing medium from a gas scrubbing for purifying raw synthesis gas in which the laden scrubbing medium is at least partially freed of bound gas constituents in a regeneration stage to obtain a regenerated scrubbing medium. According to the invention it is provided that after withdrawal from the regeneration stage the regenerated scrubbing medium is supplied to an intermediate vessel and the regenerated scrubbing medium is withdrawn from the intermediate vessel and supplied to an absorption apparatus for purifying raw synthesis gas.Type: ApplicationFiled: December 12, 2019Publication date: June 18, 2020Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges ClaudeInventors: Sophia SCHMIDT, Alfred GUBRINSKI, Christian FREY, Dorit RAPPOLD, Sharon CORBET
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Publication number: 20200101415Abstract: The invention relates to a gas scrubbing process for purifying crude synthesis gas with methanol as a physical absorption medium, wherein an acid gas comprising at least hydrogen sulfide (H2S) is produced. The acid gas is produced in a hot regenerator arranged downstream of an absorption apparatus and subsequently separated from gaseous methanol in an acid gas separator by cooling and condensation. The acid gas separator has a condensation region and an absorption region, wherein both regions are separated from one another by a gas-permeable tray. This has the result that impurities such as hydrogen cyanide and/or ammonia outgassing from a first acid gas substream are not reabsorbed in the condensation region of the acid gas separator, thus avoiding an accumulation of impurities in the hot regenerator or other parts of the gas scrubbing plant. The invention further relates to an acid gas separator and to the use of the acid gas separator according to the invention in a process according to the invention.Type: ApplicationFiled: September 27, 2019Publication date: April 2, 2020Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges ClaudeInventors: Sharon CORBET, Alfred GUBRINSKI, Pankaj PURI, Dorit RAPPOLD, Sophia SCHMIDT