Ballard Power Systems Ag

Nucellsys Gmbh

Xcellsis Gmbh

Oliver Freitag

Alois Tischler

Barbara Strobel

Matthias Wolfsteiner

Stefan Brauchle

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 evaporator stack, in particular for a double evaporator, includes foils for converting a liquid medium into a gaseous medium. The foil stack has at least one foil through which a medium flows and at least one additional foil. The foil stack has an inlet region for the liquid medium and a discharge region for the gaseous medium. The discharge region is designed such that a pressure gradient in the medium over the at least approximately entire width of the discharge region is smaller than a pressure gradient in the medium over the at least approximately entire length of the media foil through which flow occurs.

Evaporator foil stack

A lamina stack for a two-pass evaporator composed of laminae for converting two media mass streams from a liquid state into a gaseous state, comprises at least two laminae. Structures comprising recesses and raised regions on a first media lamina form a first media chamber perfused by one of the media mass streams. The structures on a second media lamina form a second media chamber perfused by the other one of the media mass streams. The at least two of the laminae can be supplied with thermal energy. Both media laminae have comparable structures, with at least a majority of the recesses in the one of the media laminae being disposed above or below the raised regions of the respective other media lamina.

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Kirchheim, Germany

Oliver Freitag