Patent ID: 7090807
Filing Date: 2006-08-15
Classification: B01D,B01J,C01B,H01M,Y02E

Abstract:
1. A multistage apparatus for selective catalytic oxidation of carbon monoxide contained in a hydrogen-rich mixed gas flow, comprising: a plurality of reaction chambers filled with a catalyst and a plurality of cooling chambers through which a coolant flows, said reaction chambers and cooling chambers being formed between successive plates and defining at least two stages in a plate stack, wherein said plates have openings that form inlet or outlet channels for the reaction chambers and for the cooling chambers, the reaction chambers being connected exclusively to inlet and outlet channels for the mixed gas flow, and the cooling chambers being connected exclusively to inlet and outlet channels for the coolant; a separating plate without any opening for inlet channels for the mixed gas flow and arranged between said at least two successive stages; and a first apparatus for supplying an oxidizing gas to a first stage; a second apparatus for supplying an oxidizing gas to at least one other stage following the first stage, wherein the second apparatus leads into an outlet channel for the mixed gas flow from a preceding stage; wherein the second apparatus for supplying the oxidizing gas is selected from the group consisting of i) a tubular probe that passes through an end plate into an outlet channel from the first stage; and ii) a tubular probe that passes through an end plate and an inlet channel for a second stage.