| 摘要 |
A reactor defines first and second flow channels within the reactor, the first flow channels and the second flow channels extending in parallel directions along at least the major part of their lengths. A removable non-structural catalyst insert is provided in those channels in which a reaction is to occur, the catalyst insert comprising a plurality of foils bonded together and which subdivide the flow channel into a multiplicity of flow sub-channels. At least one end portion of the catalyst insert is devoid of active catalytic material. The end portion that is devoid of active catalytic material suppresses the reaction in that part of the flow channel, and so reduces the requirement for any thermal transfer at that part of the flow channel.
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