Steam reforming of natural gas is the most common method of producing commercial

Question

Steam reforming of natural gas is the most common method of producing commercial hydrogen. A stream with a flow rate of 1150 mol/h containing 85.0 mol% CH4 and 15.0 mol% of water is combined with additional water steam and fed to a steam reforming reactor to produce hydrogen. The stream coming out is in chemical equilibrium. The fractional conversion for both the water and methane are 0.600. Balance the chemical equation and calculate how much additional water steam is fed to the steam reforming reactor and the flow rate of the outlet hydrogen.

Explanation / Answer

so the equilibrium equation need to be balanced that is the atoms in the reactant sides need to
be equal to the corresponding atoms in the product side.

lets see there is 1 carbon atom on both sides of the equilibrium sign, so carbon os ok

There are 6 hydrogen atoms on the reactant side and just 2 on the product side
so H2 in the product side becomes 3H2 , that is3 molecules of hydrogen

The oxygen aton is balanced with 1 atom on both the sides

=> the balanced equilibrium equation is :

CH4 + H2O = CO + 3H2

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