Catalytic reactor comprising catalytic structure providing improved gas flow distribution

Abstract

The catalytic reactor involving a gas stream with a catalytic structure, comprises a first module (1) of a honeycomb catalytic architecture having channels and oriented in such a manner such that the majority of the pores of the honeycomb catalytic architecture opens into axial direction of the reactor, and a second module (2) of a honeycomb catalytic architecture oriented in a manner such that the majority of the pores of the honeycomb catalytic architecture seals in the radial direction of the reactor. The first and second modules are juxtaposed within the reactor. The catalytic reactor involving a gas stream with a catalytic structure, comprises a first module (1) of a honeycomb catalytic architecture having channels and oriented in such a manner such that the majority of the pores of the honeycomb catalytic architecture opens into axial direction of the reactor, and a second module (2) of a honeycomb catalytic architecture oriented in a manner such that the majority of the pores of the honeycomb catalytic architecture seals in the radial direction of the reactor. The first and second modules are juxtaposed within the reactor. The first module and second module are combined into a single module to provide a first gas flow path in an axial direction of the reactor and a second path in the radial direction of the reactor. The channels are circular, square or hexagonal, or have the shape of slots or grooves. The cellular architectures are either catalytic ceramic foam or metal foam surface coated with a catalyst layer.

Description

technical field [0001] The invention relates to a catalytic reactor with a specially arranged porous catalytic structure. Background technique [0002] Foams made of ceramics or even metal alloys are known to be used as catalyst substrates in chemical reactions, more particularly heterogeneous catalytic reactions. These foams are particularly beneficial for highly exothermic or endothermic reactions (e.g., exothermic Fischer-Tropsch reactions, water-gas shift reactions, partial oxidation reactions, methanation reactions, etc.), and / or where high space velocities are required. Catalytic reactions (steam reforming of natural gas, naphtha, etc.). [0003] The most common method used to form ceramic foams with open macroporosity involves infiltrating a polymeric foam (usually polyurethane or polyester foam) with a suspension of ceramic particles in aqueous or organic solvent and cutting it into the desired geometry . Excess suspension is removed from the polymer foam by repea...

AI Technical Summary

Problems solved by technology

[0020] - Lack of conductive heat transfer between the tubes and the area of ​​the associated catalytic bed

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