Patent ID: 7547332

Claim:
Apparatus for the preparation of synthesis gas comprising: a. an adiabatic pre-reformer for optional pre-reforming of a mixture of hydrocarbon and steam and/or CO 2 ; b. a fired tubular reformer with a flue gas-containing waste heat section for heating of a mixture of hydrocarbon and steam and/or CO 2 or of the pre-reformed mixture; and c. a heated steam reforming unit integrated with the flue gas containing waste heat section from the fired tubular reformer wherein the heated steam reforming unit comprises a piping system of a flue gas heated coil system, the piping system containing reaction sections of solid reforming catalyst comprising catalyst pellets and/or catalyzed structured elements, the piping system comprising heating sections and adiabatic reaction sections, the adiabatic reaction sections being situated outside the flue gas containing waste heat section, the piping system being part of the process gas piping system integrated with the flue gas-containing waste heat section.