To provide a producing method for a synthetic gas from light natural gas, by which supply energy necessary in a reforming tube inside a heating furnace is decreased.
This producing method for the synthetic gas from the light natural gas is performed by mixing desulfurized light natural gas with steam and pre-heating, bringing the mixture into contact with a catalyst under an adiabatic condition at 500-750°C to carry out a 1st stage reforming reaction, and next, carrying out a 2nd stage reforming reaction in the reforming tube inside the heating furnace. A catalyst prepared by incorporating a specific quantity of Ni or a platinum group metal as an active ingredient in a support comprising CaO and Al2O3, containing a specific quqntity of CaO, at least a part of which forms a compound with Al2O3, and having a specific porosity or a catalyst prepared by incorporating a specific quantity of Ni in α-alumina having a specific fine pore volume and composed of ≥98 wt.% aluminum oxide is used.
SHIMAGAKI MAKOTO
HIROYA KUNIO
NAKAMURA HITOSHI
