Patents by Inventor Johannes Bernardus Maria KLOK
Johannes Bernardus Maria KLOK 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: 20230287462Abstract: The invention is directed to a process to convert carbon dioxide to methane by contacting an aqueous solution comprising dissolved carbon dioxide with an electron charged packed bed comprising of a carrier, suitably activated carbon granules, and a biofilm of microorganisms under anaerobic conditions, wherein more than 90 mol % of the dissolved carbon dioxide in the aqueous solution is present as a bicarbonate ion and/or as a carbonate ion.Type: ApplicationFiled: October 13, 2021Publication date: September 14, 2023Applicant: PAQELL B.V.Inventors: Dandan LIU, Frederikus DE RINK, Johannes Bernardus Maria KLOK
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Publication number: 20230009711Abstract: The invention is directed to a continuous process to treat a hydrogen sulphide comprising gas comprising the following steps: (a) contacting the hydrogen sulphide comprising gas with an aqueous alkaline solution further comprising sulphide oxidising bacteria thereby obtaining a loaded aqueous solution comprising sulphide compounds and sulphide oxidising bacteria. (b) contacting the loaded aqueous solution with an oxygen comprising gas to regenerate the sulphide oxidising bacteria to obtain a liquid effluent comprising regenerated sulphide oxidising bacteria which is partly used as the aqueous alkaline solution in step (a). (c) separating elemental sulphur as prepared by the sulphide oxidising bacteria in steps (a) and (b) from the loaded aqueous solution of step (a) and/or from the liquid effluent of step (b) and wherein the consumption of oxygen in step (b) is measured and wherein the supply of oxygen in step (b) is controlled by the measured consumption of oxygen.Type: ApplicationFiled: December 10, 2020Publication date: January 12, 2023Applicant: PAQELL B.V.Inventors: Johannes Bernardus Maria KLOK, Frederikus DE RINK, Karine KIRAGOSYAN, Pawel ROMAN, Albert Joseph Hendrik JANSSEN, Karel KEESMAN
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Patent number: 11548785Abstract: The invention is directed to a control method for a process to convert bisulphide to elemental sulphur in an aqueous solution comprising sulphide-oxidising bacteria wherein the process is controlled by applying a potential between the anode electrode and the cathode electrode or between the anode electrode and the reference electrode of an electrochemical cell resulting in a current between the cathode electrode and the anode electrode, measuring a current as measured by an electrochemical cell and adapting the process in response to the measured current. The process to convert bisulphide may comprise the following steps: (a) contacting bisulphide with oxidised sulphide-oxidising bacteria in the aqueous solution and elemental sulphur, (b) oxidizing the reduced sulphide-oxidising bacteria, (c) using the oxidised sulphide-oxidising bacteria obtained in step (b) in step (a) and (d) isolating elemental sulphur from the aqueous solution obtained in step (a) and/or step (b).Type: GrantFiled: May 30, 2018Date of Patent: January 10, 2023Assignee: PAQELL B.V.Inventors: Johannes Bernardus Maria Klok, Annemiek Ter Heijne, Frederikus De Rink, Cees Jan Nico Buisman
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Patent number: 11339411Abstract: The invention is directed to a process to prepare elemental sulphur by (i) contacting an aqueous solution comprising bisulphide with oxidised sulphide-oxidising bacteria under anaerobic conditions wherein elemental sulphur is produced and a reduced sulphide-oxidising bacteria is obtained and (ii) wherein the reduced sulphide-oxidising bacteria are oxidised by transfer of electrons to an anode of an electrochemical cell to obtain the oxidised sulphide-oxidising bacteria.Type: GrantFiled: May 30, 2018Date of Patent: May 24, 2022Assignee: Paqell B.V.Inventors: Johannes Bernardus Maria Klok, Annemiek Ter Heijne, Frederikus De Rink, Cees Jan Nico Buisman
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Patent number: 11279619Abstract: The invention is directed to a process to convert a sulphur compound to bisulphide by direct or indirect transfer of electrons from a cathode of a bio-electrochemical cell to the sulphur compound under anaerobic conditions and in the presence of mixed culture comprising methanogens and suitably also a anaerobic or facultative anaerobic bacteria. The sulphur compound may be a thiol like methanethiol or ethanethiol or a polysulphide, like dimethyl disulphide.Type: GrantFiled: May 29, 2019Date of Patent: March 22, 2022Assignee: PAQELL B.V.Inventors: Johannes Bernardus Maria Klok, Margo Elzinga, Annemiek Ter Heijne, Cees Jan Nico Buisman, Johannes Wijnbelt
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Publication number: 20210139327Abstract: The invention is directed to a process to convert a sulphur compound to bisulphide by direct or indirect transfer of electrons from a cathode of a bio-electrochemical cell to the sulphur compound under anaerobic conditions and in the presence of mixed culture comprising methanogens and suitably also a anaerobic or facultative anaerobic bacteria. The sulphur compound may be a thiol like methanethiol or ethanethiol or a polysulphide, like dimethyl disulphide.Type: ApplicationFiled: May 29, 2019Publication date: May 13, 2021Applicant: PAQELL B.V.Inventors: Johannes Bernardus Maria KLOK, Margo ELZINGA, Annemiek TER HEIJNE, Cees Jan Nico BUISMAN, Johannes WIJNBELT
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Publication number: 20200109052Abstract: The invention is directed to a control method for a process to convert bisulphide to elemental sulphur in an aqueous solution comprising sulphide-oxidising bacteria wherein the process is controlled by applying a potential between the anode electrode and the cathode electrode or between the anode electrode and the reference electrode of an electrochemical cell resulting in a current between the cathode electrode and the anode electrode, measuring a current as measured by an electrochemical cell and adapting the process in response to the measured current. The process to convert bisulphide may comprise the following steps: (a) contacting bisulphide with oxidised sulphide-oxidising bacteria in the aqueous solution and elemental sulphur, (b) oxidizing the reduced sulphide-oxidising bacteria, (c) using the oxidised sulphide-oxidising bacteria obtained in step (b) in step (a) and (d) isolating elemental sulphur from the aqueous solution obtained in step (a) and/or step (b).Type: ApplicationFiled: May 30, 2018Publication date: April 9, 2020Applicant: Paqell B.V.Inventors: Johannes Bernardus Maria KLOK, Annemiek TER HEIJNE, Frederikus DE RINK, Cees Jan Nico BUISMAN
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Publication number: 20200095610Abstract: The invention is directed to a process to prepare elemental sulphur by (i) contacting an aqueous solution comprising bisulphide with oxidised sulphide-oxidising bacteria under anaerobic conditions wherein elemental sulphur is produced and a reduced sulphide-oxidising bacteria is obtained and (ii) wherein the reduced sulphide-oxidising bacteria are oxidised by transfer of electrons to an anode of an electrochemical cell to obtain the oxidised sulphide-oxidising bacteria.Type: ApplicationFiled: May 30, 2018Publication date: March 26, 2020Applicant: Paqell B.V.Inventors: Johannes Bernardus Maria KLOK, Annemiek TER HEIJNE, Frederikus DE RINK, Cees Jan Nico BUISMAN
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Patent number: 10543458Abstract: A process to treat a gas comprising hydrogen sulphide and mercaptans is described. The following steps are part of this process: (a) contacting the hydrogen sulphide and mercaptans comprising gas (1) with an aqueous solution (3) comprising sulphide-oxidising bacteria thereby obtaining a loaded aqueous solution (5) and a gas (4) having a lower content of hydrogen sulphide and mercaptans, (b) contacting the loaded aqueous solution with mercaptan reducing microorganisms immobilized on a carrier under anaerobic conditions, (c) separating the aqueous solution obtained in step (b) from the mercaptan reducing microorganisms to obtain a first liquid effluent (7), and (d) contacting the first liquid effluent (7) with an oxidant (9) to regenerate the sulphide-oxidising bacteria to obtain a second liquid effluent (11) comprising regenerated sulphide-oxidising bacteria. The sulphide-oxidising bacteria as present in step (a) are comprised of regenerated sulphide-oxidising bacteria obtained in step (d).Type: GrantFiled: February 18, 2016Date of Patent: January 28, 2020Assignee: PAQELL B.V.Inventors: Johannes Bernardus Maria Klok, Gijsbert Jan van Heeringen, Jan Henk van Dijk, Albert Joseph Hendrik Janssen
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Patent number: 9902975Abstract: The invention is directed to a process for the biological conversion of bisulphide into elemental sulphur, comprising the following steps: a) converting bisulphide as dissolved in an aqueous solution to elemental sulphur in the presence of sulphide-oxidizing bacteria and under anaerobic conditions to obtain a first liquid effluent comprising elemental sulphur and used sulphide-oxidizing bacteria; b) regenerating the used sulphide-oxidizing bacteria as obtained in step (a) and as comprised in an aqueous solution in the presence of an oxidant to obtain a second liquid effluent comprising regenerated sulphide-oxidizing bacteria; c) separating elemental sulphur from either the first and/or the second liquid effluent; d) using the regenerated sulphide-oxidizing bacteria in step (a) as the sulphide-oxidizing bacteria.Type: GrantFiled: January 30, 2015Date of Patent: February 27, 2018Assignee: PAQELL B.V.Inventors: Johannes Bernardus Maria Klok, Albert Joseph Hendrik Janssen, Gijsbert Jan Van Heeringen, Jan-Henk Van Dijk
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Publication number: 20180043304Abstract: A process to treat a gas comprising hydrogen sulphide and mercaptans is described. The following steps are part of this process: (a) contacting the hydrogen sulphide and mercaptans comprising gas (1) with an aqueous solution (3) comprising sulphide-oxidising bacteria thereby obtaining a loaded aqueous solution (5) and a gas (4) having a lower content of hydrogen sulphide and mercaptans, (b) contacting the loaded aqueous solution with mercaptan reducing microorganisms immobilized on a carrier under anaerobic conditions, (c) separating the aqueous solution obtained in step (b) from the mercaptan reducing microorganisms to obtain a first liquid effluent (7), and (d) contacting the first liquid effluent (7) with an oxidant (9) to regenerate the sulphide-oxidising bacteria to obtain a second liquid effluent (11) comprising regenerated sulphide-oxidising bacteria. The sulphide-oxidising bacteria as present in step (a) are comprised of regenerated sulphide-oxidising bacteria obtained in step (d).Type: ApplicationFiled: February 18, 2016Publication date: February 15, 2018Applicant: PAQELL B.V.Inventors: Johannes Bernardus Maria KLOK, Gijsbert Jan van HEERINGEN, Jan Henk van DIJK, Albert Joseph Hendrik JANSSEN