A novel process for the production of hydrogen from propane is being evaluated. In the fired furnace reformer, two main reactions take place:

C3H8ðgÞ 13H2OðgÞ-3COðgÞ 17H2ðgÞ

COðgÞ 1H2OðgÞ-CO2ðgÞ 1H2ðgÞ

Propane steam reforming occurs in a reactor whose pipes are packed with nickel catalyst. The feed to the reactor consists of a mixture, steam
propane with a molar ratio of 6:1 at 125C. The products of the reforming stage leave the reactor at 800C. The excess of steam assures the complete consumption of propane. The syngas has a molar ratio of CO-to-CO2 of 5. Determine the fraction of the initial propane needed to operate the furnace adiabatically, and the syngas molar composition.