Patent ID: 8545775

Claim:
A reforming exchanger system comprising: a first reforming exchanger comprising: an elongated shell having a first end and a second end; a shell side fluid inlet adjacent the first end of the first reforming exchanger for receiving a first hot gas feed; a tube side fluid inlet adjacent the second end of the first reforming exchanger for receiving a reactant feed gas; a shell side fluid outlet fluidly isolated from the tube side fluid inlet by a tube sheet adjacent the second end for discharging a first gas mixture from the first reforming exchanger; and a tube bundle comprising a plurality of tubes, wherein the tubes have an inlet end secured to the tube sheet for receiving the reactant feed gas and an outlet end adjacent the shell side fluid inlet for discharging a first reformed product gas into the hot gas feed to form the first gas mixture; a shift reactor comprising a bed of shift catalyst for converting carbon monoxide in the first gas mixture to carbon dioxide to form a reduced carbon monoxide gas mixture; and a second reforming exchanger comprising: an elongated shell having a first end and a second end; a shell side fluid inlet adjacent the first end of the second reforming exchanger for receiving a second hot gas feed; a tube side fluid inlet adjacent the second end of the second reforming exchanger for receiving the reduced carbon monoxide gas mixture; a shell side fluid outlet fluidly isolated from the tube side fluid inlet by a tube sheet adjacent the second end for discharging a second gas mixture from the second reforming exchanger; and a tube bundle comprising a plurality of tubes, wherein the tubes have an inlet end secured to the tube sheet for receiving the reduced carbon monoxide gas mixture and an outlet end adjacent the shell side fluid inlet for discharging a second reformed product gas into the second hot gas feed to form the second gas mixture.