Haldor Topsoe A/s

Umicore Ag & Co Kg

Haldor Topse A/s

Pär L T Gabrielsson

Søren Dahl

Ton V W Janssens

Jakob Weiland Høj

Svend-Erik Mikkelsen

Ioannis Gekas

Claus S Jørgensen

Simon Ivar Andersen

Ingvard Bjørn

Alexandr Stakhev

Method and system for the removal of nitrogen oxides, volatile organic compounds and particulate matter from engine exhaust gas at cold start conditions.

Method and system for the removal of noxious compounds from engine exhaust gas

Method and system for the removal of nitrogen oxides, from flue gas at low temperatures.

Method and system for the removal of particulate matter and noxious compounds from flue-gas using a ceramic filter with an SCR catalyst

Method and system for the removal of noxious compounds from flue-gas using fabric filter bags with an SCR catalyst

Method for the preparation of a catalyst comprising vanadium pentoxide supported on a metal oxide catalyst carrier comprising the steps of a) providing particles of crystalline vanadium pentoxide and particles of a metal oxide catalyst carrier; b) solid state mixing the particles and dispersing the vanadium pentoxide particles on surface of the metal oxide carrier particles; and c) anchoring the dispersed vanadium pentoxide particles on surface of the metal oxide carrier particles by calcination at a temperature above 500&#xb0; C., characterized in that sintering of the vanadium pentoxide particles is suppressed by addition of an anti-sintering metal oxide component, such as tungsten trioxide, during the anchoring in step c).

Method for the preparation of a vanadium based catalyst

A method for the cleaning of exhaust gas from a compression ignition engine, comprising the steps of injecting a first amount of an aqueous urea solution into the gas; in a first mode of operation and at an exhaust gas temperature of between 150 and 220&#xb0; C. hydrolysing the first amount of urea to ammonia reducing agent in presence of a first catalyst comprising vanadium oxide supported on titania and subsequently removing part of nitrogen oxides contained in the exhaust gas by contacting the gas mixed with the ammonia reducing agent through a second catalyst comprising platinum on titania and/or alumina; and in a second mode of operation and at an exhaust gas temperature above 220&#xb0; C. removing a part of the nitrogen oxides in presence of the first catalyst and the ammonia reducing agent and subsequently oxidising hydrocarbons, carbon monoxide and remaining amount of the ammonia reducing agent further contained in the exhaust gas by passing the gas through the second catalyst.

Method for the cleaning of exhaust gas from a compression ignition engine

A multifunctional wall flow filter and a system having same performing removal of noxious compounds comprising nitrogen oxides, volatile organic compounds and carbon monoxide and particulate matter from exhaust gas of a compression ignition engine is disclosed.

Method, multifunctional filter and system for the removal of particulate matter and noxious compounds from engine exhaust gas

Method and system for operating a compression engine on ether containing fuel obtained by conversion of a primary fuel based on alcohol comprising the steps and means for: (a) continuously withdrawing the primary fuel based on alcohol from a fuel tank and pressurising the primary fuel based on alcohol in its liquid form to a final engine injection pressure; (b) continuously introducing the pressurized primary fuel based on alcohol into a fuel accumulation chamber; (c) continuously distributing the pressurized primary fuel based on alcohol into pipes connecting the accumulation chamber with fuel injectors of the engine; (d) prior to the fuel injectors continuously converting the pressurised primary fuel based on alcohol to an ether containing fuel by contact with an alcohol dehydration catalyst being arranged in each of the pipes upstream the fuel injectors; (e) continuously injecting the ether containing fuel at injection pressure into the engine; and (f) continuously withdrawing a part of the introduced primary fuel based on alcohol from the accumulation chamber; and (g) depressurising and recycling the withdrawn primary fuel based on alcohol to the fuel tank.

Method for operating a pressure ignition engine

Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of a reducing agent through a catalyst system comprising at least two catalyst beds, in which a first catalyst bed is an iron-beta-zeolite and a second catalyst bed downstream is silver supported on alumina.

[object Object]

A method and a system for injection of a solution of a compound into a gas at elevated temperature. The method includes the steps of injecting the solution into an injection channel being provided into at least a portion of an outer channel and being surrounded by and spaced apart from the outer channel, passing the gas along space between inner wall of the outer channel and outer wall of the injection channel and along inner space of the injection channel, evaporating the solution in and on inner wall of the injection channel, and decomposing the compound in and on the inner wall of the injection channel and in the gas. The solution can be aqueous solution comprising urea or ammonia, the gas is an exhaust gas from combustion, and the injection channel is a cylindrical channel concentrically installed in the outer channel.

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Helsingborg, Sweden

Pär L T Gabrielsson