Abstract: 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:
Grant
Filed:
October 23, 2008
Date of Patent:
November 18, 2014
Assignee:
Haldor Topsoe A/S
Inventors:
Kim Aasberg-Petersen, Ib Dybkjaer, Poul Erik Højlund Nielsen
Abstract: Process for production of a higher alcohol product from an alcohol synthesis gas comprising hydrogen, carbon monoxide, carbon dioxide, and lower alcohols, comprising a carbon dioxide and optional alkane removal step. Use a stripper using synthesis gas as stripping gas to purify the liquid phase containing the lower and highers alcohols, in order to strip the lower alcohol from the alcohol stream. Synthesis gas used for stripping is used as recycle stream in the reactor.
Abstract: Process for converting biogas to a gas rich in methane comprising the steps of: —mixing a carbon dioxide-comprising biogas with steam to form a mixture comprising carbon dioxide, methane and steam; electrolysing the mixture comprising carbon dioxide, methane and steam in a high temperature solid oxide electrolyser cell unit, to obtain a gas comprising mainly hydrogen and carbon monoxide; catalytically converting hydrogen and carbon monoxide in the gas comprising hydrogen and carbon monoxide to methane in one or more methanation steps to obtain a gas rich in methane.
Abstract: The invention relates to a process for the production of gamma-valerolactone (GVL) by gas phase hydrogenation of furfural or furfuryl alcohol in the presence of a solid catalyst. The conversion of furfural or furfuryl alcohol to GVL is conducted in one single step.
Type:
Application
Filed:
November 2, 2012
Publication date:
October 9, 2014
Applicant:
Haldor Topsøe A/S
Inventors:
Martin Holmes Spangsberg, Hanne Stummann Zingler, Esben Taarning
Abstract: Catalyst composition for selective reduction of nitrogen oxides and soot oxidation comprising a physical mixture of one or more acidic zeolite or zeo-type components with one ore more redox active metal compounds and a method for selective reduction of nitrogen oxides and soot oxidation by use of the catalyst composition.
Type:
Application
Filed:
May 2, 2012
Publication date:
October 2, 2014
Applicant:
Haldor Topsøe A/S
Inventors:
Alexandr Yu Stakheev, Marie Grill, Arkady Kustov
Abstract: Catalysed filter consisting of a filter body of bio-soluble fibres catalysed with a catalyst comprising oxides of vanadium and titanium, wherein the total concentration of alkali metals in the filter body is less than 3000 ppm by weight and/or the total concentration of earth alkali metals in the filter body is less than 20% by weight.
Type:
Application
Filed:
March 13, 2014
Publication date:
September 18, 2014
Applicant:
Haldor Topsoe A/S
Inventors:
Francesco Castellino, Joakim Reimer Thogersen, Peter Schoubye
Abstract: Method of operating a compression ignition engine on ether containing fuel obtained by on board conversion of an alcohol containing primary fuel, and a system for use in the method. The alcohol containing primary fuel is heated within a dehydration reactor by indirect heat exchange with ether containing fuel prepared in the dehydration reactor by dehydrating the alcohol containing primary fuel. The ether containing fuel is cooled prior to withdrawal from the reactor as a result of the indirect heat exchange with the alcohol containing primary fuel.
Type:
Grant
Filed:
March 2, 2011
Date of Patent:
September 2, 2014
Assignee:
Haldor Topsoe A/S
Inventors:
Christophe Duwig, Pär L. Gabrielsson, Svend-Erik Mikkelsen, Ton V. W. Janssens
Abstract: A method for designing the construction of a Heat Exchange Reformer (HER) to minimise metal dusting, and a method for improved thermal control in a Heat Exchange Reformer (HER). By analysis of various parameters related to a Main Reforming Unit (MRU) and a Heat Exchange Reformer (HER), improved thermal control and reduced metal dusting is achieved.
Type:
Application
Filed:
January 9, 2014
Publication date:
July 17, 2014
Applicant:
Haldor Topsøe A/S
Inventors:
Martin Frahm Jensen, Claus Fallesen Hansen
Abstract: Process for the preparation of synthesis gas from an essentially dry hydrocarbon feedstock (1) comprising olefins, hydrogen and carbon monoxide, the process comprising the steps: (a) selectively hydrogenating the olefins in the hydrocarbon feedstock at a temperature between 60 to 190° C. (2) to obtain a hydrogenated hydrocarbon feedstock comprising hydrogen, carbon monoxide and saturated hydrocarbons (3; (b) adding steam (4) to the hydrogenated hydrocarbon feedstock; (c) performing a water gas shift reaction in the presence of steam on the hydrogenated hydrocarbon feedstock (6) to obtain a shifted, hydrogenated hydrocarbon mixture; (d) converting the shifted, hydrogenated hydrocarbon mixture (8) to obtain a synthesis gas.
Type:
Grant
Filed:
May 13, 2011
Date of Patent:
July 1, 2014
Assignee:
Haldor Topsoe A/S
Inventors:
Kim Aasberg-Petersen, Poul Erik Højlund Nielsen, Peter Seier Christensen, Charlotte Stub Nielsen, Burcin Temel
Abstract: A catalyst for the conversion of oxygenates, such as alcohols or ethers, to olefins consists essentially of a selected SUZ-4 zeolite that has a Si/Al ratio of at least 20, preferably between 20 and 500, especially between 20 and 100. The basic SUZ-4 zeolite is prepared in a manner known per se, whereafter the Si/Al ratio is increased to the desired value. The selected SUZ-4 zeolite catalyst of the invention has a longer life time and a better product selectivity than the conventional/standard SUZ-4 zeolite catalysts.
Type:
Application
Filed:
July 20, 2012
Publication date:
June 26, 2014
Applicant:
Haldor Topsøe A/S
Inventors:
Shewangizaw Teketel, Stian Svelle, Pablo Beato
Abstract: A hydrocarbon conversion catalyst comprising a modified beta zeolite, an amorphous inorganic oxide and a hydrogenation component wherein the said catalyst support has an NH3-AI of less than 3.5 and/or an IEC-AI of less than 3.7.
Type:
Grant
Filed:
June 23, 2003
Date of Patent:
June 24, 2014
Assignee:
Haldor Topsoe A/S
Inventors:
Jens A. Hansen, Niels J. Blom, Birgitte R. Byberg, John W. Ward
Abstract: Method for the preparation of a wall flow particulate filter catalysed at its inlet side with a first catalyst having activity in the removal of residual hydrocarbons and carbon monoxide and catalysing at rich burn engine operation conditions the reaction of nitrogen oxides with hydrogen and/or carbon monoxide to ammonia and catalysed at its outlet side with a second catalyst having activity in the selective reduction of NOx by reaction with ammonia being formed in the inlet side. The method involves the provision of a first catalyst having a particle size smaller than the filter wall mean pore size, and a second catalyst having a particle size larger than the filter wall mean pore size, and mixing the first and second catalyst into one suspension, which is used for wash-coating from the outlet end. The first catalyst thereby diffuses into the partition wall.
Abstract: Method and a reactor for performing exothermic catalytic reactions. The method comprises the steps of providing a feed gas stream comprising reactants for the exothermic catalytic reaction to a fixed bed catalytic reactor comprising one or more catalyst beds each with catalyst particles filled sections with a catalyst volume; providing a feed gas bypass inside the reactor by arranging within at least one of the catalyst beds a number of bypass passageways without catalytic active particles inside the passageways and having a cooling surface area; passing a part of the feed gas stream through the bypass passageways and reminder of the stream through the catalyst particles filled sections; and removing heat from the feed gas stream being passed through the catalyst filled sections by indirect heat transfer to the part of the feed gas stream being passed through the bypass passageways.
Abstract: Wall flow particulate filter catalysed at its inlet side with a catalyst having activity in the removal of residual hydro-carbons and carbon monoxide and catalysing at rich burn engine operation conditions the reaction of nitrogen oxides with hydrogen and/or carbon monoxide to ammonia and catalysed at its outlet side with a catalyst having activity in the selective reduction of NOx by reaction with ammonia being formed in the inlet side.
Abstract: Method of removing metal carbonyls from a gaseous stream comprising contacting the metal carbonyl containing gaseous stream at elevated temperature with a particulate sorbent comprising modified copper aluminum spinel, wherein the copper aluminium spinel has been modified by a thermal treatment in a reducing atmosphere and a particulate sorbent for use in a method comprising a copper aluminium spinel being modified by thermal treatment in a reducing atmosphere at a temperature of between 250 and 500° C.
Abstract: Method for the preparation of a wall flow particulate filter catalysed at its inlet side with a first catalyst having activity in the removal of residual hydrocarbons and carbon monoxide and catalysing at rich burn engine operation conditions the reaction of nitrogen oxides with hydrogen and/or carbon monoxide to ammonia and catalysed at its outlet side with a second catalyst having activity in the selective reduction of NOx by reaction with ammonia being formed in the inlet side. The method involves the provision of a first catalyst having a particle size larger than the filter wall mean pore size, and a second catalyst having a particle size smaller than the filter wall mean pore size, and mixing the first and second catalyst into one suspension, which is used for wash-coating from the inlet end. The second catalyst thereby diffuses into the partition wall.
Abstract: The invention relates to a process for the production of synthesis gas by the use of autothermal reforming in which tail gas from downstream Fischer-Tropsh synthesis is hydrogenated and then added to the autothermal reforming stage.
Type:
Application
Filed:
June 20, 2012
Publication date:
May 15, 2014
Applicant:
Haldor Topsøe A/S
Inventors:
Kim Aasberg-Petersen, Peter Seier Cristensen, Thomas Sandahl Christensen
Abstract: A process for the production of synthesis gas with reduced carbon dioxide foot-print via recycling of carbon dioxide produced in the process to the burners of the steam reformer.
Abstract: The invention relates to a process for the production of synthesis gas from a hydrocarbon feedstock, wherein the entire hydrocarbon feed is passed through a radiant furnace, heat exchanger reformer and autothermal reformer in a series arrangement, in which effluent gas from the autothermal reformer is used as heat source for the reforming reactions occurring in the heat exchange reformer and wherein a cooling medium is added to the heat exchange reformer.
Type:
Grant
Filed:
January 18, 2011
Date of Patent:
April 15, 2014
Assignee:
Haldor Topsoe A/S
Inventors:
Niklas Bengt Jakobsson, Anders Helbo Hansen, Pat A. Han
Abstract: Process for the co-production of methanol and ammonia from a hydrocarbon feed without venting to the atmosphere carbon dioxide captured from the methanol or ammonia synthesis gas and without using expensive air separation units, water gas shift and acid gas wash for removal of carbon.