The production of ammonia (NH3) from nitrogen and hydrogen, shown below, was an

Question

The production of ammonia (NH3) from nitrogen and hydrogen, shown below, was an important breakthrough resulting in Nobel prizes in chemistry to Fritz Haber (1918) and Carl Bosch (1931). This compound is widely used in manufacturing fertilizers. 3H2(g) + N2(g) --> 2NH3(g)

Based on the answer from #3 (which I got an answer of 1.7 * 10^3 L of H2, so please just use that number), if a Ni/Al2O3 catalyst was used in the steam reformation of methane to produce the H2 needed for the Haber-Bosch process and a 5% catalyst (by mass, compared to CH4) was needed-how much catalyst was used? Report in grams.

Explanation / Answer

Reaction :

3H2 (g) + N2 (g) ---------> 2NH3 (g),

Reaction ratio = 3:1 (H2:N2),

1.7*103= 1700 Litre of H2 gas,

Density of H2 gas 0.08988 g/L at 0 deg c,

mass of H2= 1700*0.08988=152.79 gms,

so, 152.79*5=763.95/100=7.6395 gms of catalyst to be used.

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