Patent attributes
A compact catalytic reactor for Fischer-Tropsch synthesis defines a multiplicity of first and second flow channels arranged alternately in the reactor, for carrying a gas mixture which undergoes Fischer-Tropsch synthesis, and a coolant fluid, respectively. Each first flow channel contains a removable gas-permeable catalyst structure incorporating a metal substrate. A multiplicity of flow paths are defined through the catalyst structure, and the voidage, that is to say the proportion of the cross-sectional area of the first flow channel constituted by the said multiplicity of flow paths, is between 25% and 70%. This provides an optimum balance between productivity and selectivity, so that operation of the reactor can be economic and controllable.