Patents by Inventor Ib Dybkjær
Ib Dybkjær 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: 10549991Abstract: The present disclosure relates to a process plant and a process for production of a hydrogen rich gas, comprising the steps of (a) directing an amount of a synthesis gas comprising at least 15%, 50% or 80% on dry basis of CO and H2 in combination, a gas comprising steam, and a recycled intermediate product gas to be combined into a first reactor feed gas, (b) directing said first reactor feed gas to contact a first material catalytically active in water gas shift reaction, producing an intermediate product gas, (c) splitting said intermediate product gas in the recycled intermediate product gas and a remaining intermediate product gas, (d) combining said remaining intermediate product gas with a further amount of synthesis gas forming a second reactor feed gas, (e) directing said second reactor feed gas to contact a second material catalytically active in the water gas shift reaction, producing a product gas, characterized in the H2O:CO ratio in said first reactor feed gas being from 0.5 to 2.Type: GrantFiled: February 26, 2016Date of Patent: February 4, 2020Assignee: HALDOR TOPSØE A/S4Inventors: Christian Wix, Ib Dybkjær, Rasmus Trane-Restrup
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Patent number: 10093541Abstract: Process for the production of synthesis gas by catalytic steam reforming of a hydrocarbon containing feedstock in parallel in an autothermal steam reformer and heat exchange reformer, the heat for the steam reforming reactions in the heat exchange reformer being provided by indirect heat exchange with the combined effluent of the heat exchange reformer and a portion of the autothermal steam reformer.Type: GrantFiled: February 27, 2015Date of Patent: October 9, 2018Assignee: Haldor Topsoe A/SInventors: Kim Aasberg-Petersen, Ib Dybkjær
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Patent number: 9890098Abstract: Process for the production of a synthesis gas for use in the production of chemical compounds from a hydrocarbon feed stock containing higher hydrocarbons comprising the steps of: (a) in a pre-reforming stage pre-reforming the feed stock with steam to a pre-reformed gas containing methane, hydrogen, carbon monoxide and carbon dioxide; and (b) cooling the pre-reformed gas to below its dewpoint and removing condensed water; and (c) reducing the amount of carbon dioxide the in the pre-reformed gas from step (b) to obtain a module of (H2?CO2)/(CO+CO2) of between 1.0 and 3.8 in the pre-reformed gas.Type: GrantFiled: December 11, 2014Date of Patent: February 13, 2018Assignee: Haldor Topsoe A/SInventors: Christian Wix, Ib Dybkjaer
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Publication number: 20170355601Abstract: The present disclosure relates to a process plant and a process for production of a hydrogen rich gas, comprising the steps of (a) directing an amount of a synthesis gas comprising at least 15%, 50% or 80% on dry basis of CO and H2 in combination, a gas comprising steam, and a recycled intermediate product gas to be combined into a first reactor feed gas, (b) directing said first reactor feed gas to contact a first material catalytically active in water gas shift reaction, producing an intermediate product gas, (c) splitting said intermediate product gas in the recycled intermediate product gas and a remaining intermediate product gas, (d) combining said remaining intermediate product gas with a further amount of synthesis gas forming a second reactor feed gas, (e) directing said second reactor feed gas to contact a second material catalytically active in the water gas shift reaction, producing a product gas, characterized in the H2O:CO ratio in said first reactor feed gas being from 0.5 to 2.Type: ApplicationFiled: February 26, 2016Publication date: December 14, 2017Inventors: Christian WIX, Ib DYBKJÆR, Rasmus TRANE-RESTRUP
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Patent number: 9828246Abstract: The invention relates to a process for the production of liquid hydrocarbons by Fischer-Tropsch synthesis in which the reforming section of the plant comprises a process line comprising autothermal reforming (ATR) (5) or catalytic partial oxidation (CPO), and a separate process line comprising steam methane reforming (SMR) (8).Type: GrantFiled: February 26, 2015Date of Patent: November 28, 2017Assignee: Haldor Topsoe A/SInventors: Ib Dybkjær, Kim Aasberg-Petersen
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Publication number: 20170197894Abstract: The present application relates to a process comprising the steps of—providing a purge stream from a synthesis section,—preheating at least part of said purge stream,—adding steam to the preheated purge stream to obtain a first mixed stream,—passing the first mixed stream through a shift conversion step thereby obtaining a conversion product stream,—passing at least part of the conversion product stream through a H2 separation step producing a H2 enriched stream and a H2 depleted waste stream, and —returning at least part of said H2 enriched stream to and/or upstream the synthesis section.Type: ApplicationFiled: April 24, 2015Publication date: July 13, 2017Applicant: Haldor Topsøes A/SInventor: Ib DYBKJÆR
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Publication number: 20170073227Abstract: The invention relates to a process for the production of liquid hydrocarbons by Fischer-Tropsch synthesis in which the reforming section of the plant comprises a process line comprising autothermal reforming (ATR) (5) or catalytic partial oxidation (CPO), and a separate process line comprising steam methane reforming (SMR) (8).Type: ApplicationFiled: February 26, 2015Publication date: March 16, 2017Applicant: Haldor Topsøe A/SInventors: Ib Dybkjær, Kim Aasberg-Petersen
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Publication number: 20170066651Abstract: Process for the production of synthesis gas by catalytic steam reforming of a hydrocarbon containing feedstock in parallel in an autothermal steam reformer and heat exchange reformer, the heat for the steam reforming reactions in the heat exchange reformer being provided by indirect heat exchange with the combined effluent of the heat exchange reformer and a portion of the autothermal steam reformer.Type: ApplicationFiled: February 27, 2015Publication date: March 9, 2017Applicant: Haldor Topsøe A/SInventors: Kim Aasberg-Petersen, Ib Dybkjær
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Publication number: 20160304424Abstract: Process for the production of a synthesis gas for use in the production of chemical compounds from a hydrocarbon feed stock containing higher hydrocarbons comprising the steps of: (a) in a pre-reforming stage pre-reforming the feed stock with steam to a pre-reformed gas containing methane, hydrogen, carbon monoxide and carbon dioxide; and (b) cooling the pre-reformed gas to below its dewpoint and removing condensed water; and (c) reducing the amount of carbon dioxide the in the pre-reformed gas from step (b) to obtain a module of (H2—CO2)/(CO+CO2) of between 1.0 and 3.8 in the pre-reformed gas.Type: ApplicationFiled: December 11, 2014Publication date: October 20, 2016Applicant: Haldor Topsøe A/SInventors: CHRISTIAN WIX, Ib Dybkjaer
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Publication number: 20150259202Abstract: The invention relates to a process for the production of synthesis gas from tail gas including autothermal reforming and shifting a portion of autothermally reformed process gas in order to produce a product stream of synthesis gas richer in carbon monoxide.Type: ApplicationFiled: October 10, 2013Publication date: September 17, 2015Applicant: Haldor Topsøe A/SInventors: Ib Dybkjær, Rachid Mabrouk, Kim Aasberg-Petersen, Christian Niels Schjødt
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Patent number: 8889089Abstract: A process for a reduction in the amount of sulphur compounds, hydrogen cyanide, formic acid and formic acid derivatives in synthesis gas comprising these compounds, the process comprising contacting the synthesis gas with a sulphur absorbent comprising material and thereafter with a catalyst comprising one or more metals selected from the group consisting of silver, gold, copper, palladium, platinum and their mixtures and supported on a carrier comprising at least one of the oxides of scandium, yttrium, lanthanum, cerium, titanium, zirconium, aluminum, zinc, chromium and molybdenum.Type: GrantFiled: October 23, 2008Date of Patent: November 18, 2014Assignee: Haldor Topsoe A/SInventors: Kim Aasberg-Petersen, Ib Dybkjaer, Poul Erik Højlund Nielsen
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Patent number: 8623303Abstract: A process for the catalytic removal of hydrogen cyanide, formic acid and formic acid derivatives from synthesis gas comprising these compounds, carbon monoxide and hydrogen, the process comprising contacting the synthesis gas with a catalyst comprising one or more metals selected from the group consisting of silver, gold, copper, palladium, platinum and their mixtures and supported on a carrier comprising at least one of the oxides of scandium, yttrium, lanthanum, cerium, titanium, zirconium, aluminum, zinc, chromium and molybdenum.Type: GrantFiled: April 18, 2007Date of Patent: January 7, 2014Assignee: Haldor Topsoe A/SInventors: Karsten Pedersen, Poul Erik Højlund Nielsen, Ib Dybkjær, Jesper Nerlov
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Patent number: 8106102Abstract: A process (10) for the preparation and conversion of synthesis gas includes reforming a feed gas (34) comprising methane in a reforming stage (18) to produce synthesis gas (46) which includes hydrogen and carbon monoxide. Some of the hydrogen and carbon monoxide is converted to a Fischer-Tropsch product (48) in a Fischer-Tropsch hydrocarbon synthesis stage (24). A tail gas (52), including unreacted hydrogen and carbon monoxide, methane and carbon dioxide, is separated from the Fischer-Tropsch product (48). In a tail gas treatment stage (28,30), the tail gas (52) is treated by reforming the methane in the tail gas (52) with steam (66) and removing carbon dioxide to produce a hydrogen rich gas (56). The tail gas treatment stage (28,30) may be either a combined tail gas treatment stage (28,30) or a composite tail gas treatment stage. The carbon dioxide from the tail gas treatment stage (28,30) is fed to the reforming stage (18).Type: GrantFiled: June 14, 2006Date of Patent: January 31, 2012Assignees: Sasol Technology (Proprietary) Limited, Haldor Topsøe A/SInventors: Andre Peter Steynberg, Ib Dybkjaer, Kim Aasberg-Petersen
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Publication number: 20100311848Abstract: A process for a reduction in the amount of sulphur compounds, hydrogen cyanide, formic acid and formic acid derivatives in synthesis gas comprising these compounds, the process comprising contacting the synthesis gas with a sulphur absorbent comprising material and thereafter with a catalyst comprising one or more metals selected from the group consisting of silver, gold, copper, palladium, platinum and their mixtures and supported on a carrier comprising at least one of the oxides of scandium, yttrium, lanthanum, cerium, titanium, zirconium, aluminium, zinc, chromium and molybdenum.Type: ApplicationFiled: October 23, 2008Publication date: December 9, 2010Inventors: Kim Aasberg-Petersen, Ib Dybkjaer, Poul Erik Højlund Nielsen
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Patent number: 7717971Abstract: Process and system for the production of synthesis gas from a hydrocarbon feed stock comprising the steps of endothermic and/or adiabatic catalytic steam reforming and autothermal steam reforming in series, wherein the steam reforming is carried out in one or more endothermic stages in series or in one or more adiabatic steam reforming stages in series with intermediate heating of feed stock gas leaving the adiabatic reforming stages and wherein carbon monoxide containing gas characterised by having a molar ratio of hydrogen to carbon of less than 4.5 is added prior to at least one of the endothermic or adiabatic steam reforming stages and/or prior to the autothermal steam reforming step.Type: GrantFiled: June 6, 2007Date of Patent: May 18, 2010Assignee: Haldor Topsoe A/SInventors: Kim Aasberg-Petersen, Ib Dybkjær, Peter Seier Christensen, Thomas Rostrup-Nielsen, Niels Erikstrup, Jens-Henrik Bak Hansen
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Publication number: 20090186952Abstract: A process (10) for the preparation and conversion of synthesis gas includes reforming a feed gas (34) comprising methane in a reforming stage (18) to produce synthesis gas (46) which includes hydrogen and carbon monoxide. Some of the hydrogen and carbon monoxide is converted to a Fischer-Tropsch product (48) in a Fischer-Tropsch hydrocarbon synthesis stage (24). A tail gas (52), including unreacted hydrogen and carbon monoxide, methane and carbon dioxide, is separated from the Fischer-Tropsch product (48). In a tail gas treatment stage (28,30), the tail gas (52) is treated by reforming the methane in the tail gas (52) with steam (66) and removing carbon dioxide to produce a hydrogen rich gas (56). The tail gas treatment stage (28,30) may be either a combined tail gas treatment stage (28,30) or a composite tail gas treatment stage. The carbon dioxide from the tail gas treatment stage (28,30) is fed to the reforming stage (18).Type: ApplicationFiled: June 14, 2006Publication date: July 23, 2009Inventors: Andre Peter Steynberg, Ib Dybkjaer, Kim Aasberg-Petersen
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Publication number: 20090074643Abstract: A process for the catalytic removal of hydrogen cyanide, formic acid and formic acid derivatives from synthesis gas comprising these compounds, carbon monoxide and hydrogen, the process comprising contacting the synthesis gas with a catalyst comprising one or more metals selected from the group consisting of silver, gold, copper, palladium, platinum and their mixtures and supported on a carrier comprising at least one of the oxides of scandium, yttrium, lanthanum, cerium, titanium, zirconium, aluminium, zinc, chromium and molybdenum.Type: ApplicationFiled: April 18, 2007Publication date: March 19, 2009Inventors: Karsten Pedersen, Poul Erik Hojlund Nielsen, Ib Dybkjaer, Jesper Nerlov
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Publication number: 20070264186Abstract: A process for production of hydrogen and/or carbon monoxide rich gas from gaseous or liquid hydrocarbon feed-stock comprising the following steps: (a) desulphurisation of the hydrocarbon feed (1), mixing the feed (1) with steam (4) produced from waste heat in the process, feeding the mixture (6, 7) to a steam reforming section (8, 9) for conversion of the hydrocarbon feed by reaction with steam to form a process gas (12) comprising a mixture of hydrogen, carbon monoxide, carbon dioxide, residual methane and excess steam, (b) cooling the process gas (12) by steam production, (c) separating hydrogen and/or carbon monoxide (21) by conducting the process gas through a hydrogen and/or carbon monoxide purification section (20), (d) adding essentially all off-gas (22) from the purification section (20) as fuel to the reforming section (8, 9) to provide heat for the reforming reaction, (e) recovering hot flue gas (32) from the reforming section and cooling the hot flue gas at least partly by steam production, (f) recType: ApplicationFiled: September 2, 2005Publication date: November 15, 2007Inventors: Ib Dybkjaer, Anne Jensen, Carsten Laursen, Henrik Stahl
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Patent number: 7241401Abstract: Process and system for the production of synthesis gas from a hydrocarbon feed stock comprising the steps of endothermic and/or adiabatic catalytic steam reforming and autothermal steam reforming in series, wherein the steam reforming is carried out in one or more endothermic stages in series or in one or more adiabatic steam reforming stages in series with intermediate heating of feed stock gas leaving the adiabatic reforming stages and wherein carbon monoxide containing gas characterised by having a molar ratio of hydrogen to carbon of less than 4.5 is added prior to at least one of the endothermic or adiabatic steam reforming stages and/or prior to the autothermal steam reforming step.Type: GrantFiled: September 23, 2003Date of Patent: July 10, 2007Assignee: Haldor Topsoe A/SInventors: Kim Aasberg-Petersen, Ib Dybkjaer, Peter Seier Christensen, Thomas Rostrup-Nielsen, Niels Erikstrup, Jens-Henrik Bak Hansen
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Patent number: 7094363Abstract: Process and apparatus for the preparation of synthesis gas by catalytic steam and/or CO2 reforming of a hydrocarbon feedstock comprising the following steps: (a) heating the reaction mixture of hydrocarbon and steam and/or CO2 in a heated steam reforming unit integrated with the flue gas containing waste heat section from the fired tubular reformer in which reforming of the reaction mixture takes place by contact with a solid reforming catalyst (b) feeding the partially steam reformed mixture to the fired tubular reformer and further reforming the mixture to the desired composition and temperature, wherein the heated steam reforming unit comprises a piping system containing reaction sections with solid reforming catalyst comprising catalyst pellets and/or catalysed structured elements, the piping system being part of the process gas piping system integrated with the flue gas-containing waste heat section.Type: GrantFiled: September 24, 2003Date of Patent: August 22, 2006Assignee: Haldor Topsoe A/SInventors: Peter Seier Christensen, Thomas Rostrup Nielsen, Niels Erikstrup, Kim Aasberg-Petersen, Jens-Henrik Bak Hansen, Ib Dybkjaer