The authors develop a small and simple steam-reforming reactor in a home-use size for n-dodecane as a heavy-hydrocarbons fuel. Under such a well-controlled condition by a thermal diffuser as the reactor satisfies two target-temperature criteria, the authors measure the inside-temperature profile and the hydrogen-molecule ratio (concentration) R H2 , together with the molecule ratios R CH4 , R CO and R CO2 of other main gass components such as CH 4 , CO and CO 2 , respectively. In addition, the authors conduct theoretical calculations, as well as experiments. As a result, the authors successfully achieve suitable inside-temperature profiles. The effects of the steam-to-carbon molar ratio S/C upon R H2 , R CH4 , R CO and R CO2 are shown, experimentally and theoretically. The experimental results agree well with the theoretical ones. Besides, both carbon balance and conversion ratio show high accuracy in experiments.
The authors develop a small and simple steam-reforming reactor in a home-use size for n-dodecane as a heavy-hydrocarbons fuel. Under such a well-controlled condition by a thermal diffuser as the reactor satisfies two target-temperature criteria, the authors measure the inside-temperature profile and the hydrogen molar fraction (concentration) C H2 , together with the molar fractions C CH4 , C CO and C CO2 of other main gas components such as CH 4 , CO and CO 2 , respectively, using a gas chromatograph. In addition, the authors conduct theoretical calculations based on the thermal-equilibrium theory, and reveal C H2 , C CH4 , C CO and C CO2 , as well as experiments. As a result, the authors successfully achieve suitable inside-temperature profiles. The steam-reforming reaction becomes more active at the position where temperature T > 800 K. The effects of the steam-to-carbon molar ratio S/C upon C H2 , C CH4 , C CO and C CO2 are shown, experimentally and theoretically. The experimental results agree well with the theoretical ones. Besides, carbon balance and conversion ratio show high accuracy in experiments.
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