Haldor Topsoe A/s

Haldor Topse A/s

Pär L Gabrielsson

Christophe Duwig

Max Thorhauge

Ton V W Janssens

Jesper Norsk

Svend-Erik Mikkelsen

Ioannis Gekas

Ingvard Bjørn

Alexandr Yu Stakheev

Ton Vw Janssens

Ton VW Janssens

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 ether containing fuel is prepared by dehydration of liquid alcohol containing fuel in present of a dehydration catalyst arranged in a radial flow reactor within a fuel accumulation chamber in a common rail.

Method and system for operating a compression ignition engine on alcohol containing fuels

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.

Method and system for operating a compression ignition engine on alcohol containing primary fuels

Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of an oxygen-containing organic reducing agent through a catalyst system comprising at least two catalyst beds, in which a first catalyst bed comprises only alumina and a second catalyst bed downstream comprises only indium supported on alumina.

Process and catalyst system for NOx reduction

Method and apparatus for uniformly injecting a fluid stream into a gas stream at elevated temperature by means of an injection nozzle comprising a nozzle head and a supply inner tube being concentrically surrounded with an outer casing tube spaced apart from the inner supply tube. It comprises passing the fluid stream through the inner tube and the nozzle head and maintaining temperature of the fluid stream in the inner tube by providing thermal insulation in at least part of an annular space between the inner tube and the outer tube. Further it comprises maintaining a constant flow of the fluid inside the inner tube and nozzle head by plugging the nozzle head at outlet end and spraying the fluid stream through a number of nozzle holes provided in the nozzle head adjacent to the outlet end of the nozzle head.

Injection nozzle for purification

The invention relates to a method for controlling injection of a reductant into a NOcontaining exhaust gas stream from a combustion engine, where combustion of a known fuel takes place and where the NOis reduced by selective catalytic reduction, SCR, in the presence of a SCR catalyst, comprising establishing signals related to exhaust gas flow, HOconcentration in the exhaust gas stream upstream of the catalyst, exhaust gas temperature upstream of the SCR catalyst, exhaust gas temperature downstream of the SCR catalyst and to input data for catalyst characteristics. From the signals an adjusted amount of the reductant is calculated by using a calculated amount of reductant and a value d(E*T)/dt, where E is the exhaust gas flow, T is the exhaust gas temperature upstream of the catalyst and t is time.

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Helsingborg, Sweden

Pär L Gabrielsson