REFORMER TUBE HAVING INTERNAL HEAT EXCHANGE

摘要

A reformer tube (101) for producing synthesis gas by steam reforming of hydrocarbon-containing feed gases, preferably natural gas, in which one or more helically coiled heat exchanger tubes (109) which are arranged within a catalyst bed (105) of a reforming catalyst and are helically coiled over part of their length located within the catalyst bed and are otherwise straight are present, where the straight proportion of the heat exchanger tubes and/or the helix pitch of the helically coiled part alters within the catalyst bed and matching to requirements in respect of the pressure drop and the heat exchange properties and also in respect of the corrosion resistance can therefore be achieved, is proposed.