Xcellsis Gmbh

Nucellsys Gmbh

Other

Ballard Power Systems Ag

Stefan Brauchle

Matthias Wolfsteiner

Stefan Boneberg

Dirk Georg

Rainer Autenrieth

Martin Schuessler

Uwe Benz

Barbara Strobel

Otto Kumberger

Martin Sch&uuml;ssler

Oliver Freitag

Martin Schaefer

Martin Sch&auml;fer

Joachim Guertler

A method for operating a plant for the steam reforming of hydrocarbons, in particular methanol, in which, in a mixture-preparation stage, a steam/hydrocarbon mixture is prepared from water and at least one hydrocarbon. The prepared steam/hydrocarbon mixture is introduced into a reforming reactor. The steam/hydrocarbon mixing ratio is set or adapted in order to compensate for an aging-related long-term shift in a temperature profile within the reforming reactor.

Method for operating a plant for the steam reforming of hydrocarbons and corresponding plant

An apparatus for the selective catalytic oxidation of carbon monoxide contained in a hydrogen-rich mixed gas flow, includes a reaction chamber filled with a catalyst and a cooling chamber through which a coolant flows formed between successive plates. The plates have openings that form inlet and outlet channels for the mixed gas flow and the coolant. An oxidizing gas is supplied directly into the inlet channel for the mixed gas flow. For two-stage apparatuses, a separating plate without an opening for the inlet channel for the mixed gas flow is arranged between the first and the second stage, and an apparatus for supplying the oxidizing gas to the second stage is passed into the outlet channel for the mixed gas flow from the first stage.

Device for selective catalytic oxidation of carbon monoxide

An arrangement for generating a hydrogen-containing gas from a hydrocarbon-containing medium includes a multi-stage reforming unit that is connected to a multi-stage carbon monoxide removal unit by a heat-conducting separating medium. The stages of the reforming unit, in an ascending order relative to the gas flow direction in the reforming unit, are in a thermal contact with stages of the carbon monoxide removal unit, in a descending order relative to the gas flow direction in the carbon monoxide removal unit.

Arrangement for generating a hydrogen-containing gas

A chemical reactor for a fuel cell system includes a reaction chamber containing at least two reaction partial chambers arranged parallel to one another. The effective reaction chamber cross section on the input side is adjustable by opening or closing the reaction partial chambers. A first reaction partial chamber type is open when the system is started is warmed up more rapidly under comparable operating conditions than the second reaction partial chamber.

Chemical reactor for a fuel cell system

A process for pretreating a catalyst material for catalysing a chemical reaction in a reactor, in particular for a reforming catalyst material for catalysing a methanol reforming reaction to obtain hydrogen, includes (1) subjecting the catalyst material to a hydrogen-containing gas mixture in a forming step, and (2) subsequently subjecting the catalyst material to an oxygen-containing gas mixture in a deactivating step.

Method for pretreating a catalyst material

A system for generating hydrogen-rich gas has a reformer for catalytic water vapor reforming of a water vapor/fuel mixture by an input supply of thermal energy, and a CO oxidation stage for removing carbon monoxide from the hydrogen-rich gas while emitting heat, with the reformer and the CO oxidation stage being thermally coupled. An oxygen quantity fed to the CO oxidation stage is adjusted as a function of the gas temperature in or at the output of the reformer/oxidation stage. This can take place by an automatic (feedback) control, a combination of open loop control and automatic control or by an adaptive characteristic diagram.

Method and apparatus for operating a reformer/co oxidation unit

A reforming reactor includes (1) a reformer section for converting a starting material mixture into a reformate product by means of an endothermal reforming reaction; (2) a CO shift section to convert the carbon monoxide contained in the reformate product into carbon dioxide by the CO shift reaction; and (3) a catalytic burner unit for generating heat by catalytic combustion of a combustion gas. The catalytic burner has a heating area in thermal contact with the reformer section and a cooling area in thermal contact with the CO shift section having less combustion catalyst activity than the heating area. Combustion gas is fed counter-current-wise to the reformate product flowing through the CO shift stage and to the starting material mixture flowing through the reformer stage through the corresponding cooling area and through the adjoining heating area.

Growing community of inventors

Biberach/Riss, Germany

Stefan Brauchle