(Solved): Ammonia is produced from nitrogen and hydrogen by the following reversible reaction: \[ \mathrm{N} ...

Ammonia is produced from nitrogen and hydrogen by the following reversible reaction: \[ \mathrm{N}_{2}+3 \mathrm{H}_{2} \rightleftarrows 2 \mathrm{NH}_{3} \] A process flowsheet for an ammonia production process ( \( 900 \mathrm{ton} / \mathrm{day} \) of ammonia) is to be developed. Assume the plant is available \( 90 \% \) of the year. 1. Calculate the maximum economic potential (in \$/annum) that may be obtained from the process. The following feed streams are available: - Hydrogen containing \( 1.5 \% \) methane at \( 40^{\circ} \mathrm{C} \) - Pure nitrogen at \( 40^{\circ} \mathrm{C} \). A hydrogen to nitrogen feed ratio of \( 3: 1 \) is employed. The reaction is a gas-phase reaction, employing an iron catalyst; and conducted at a reactor temperature of \( 350-550^{\circ} \mathrm{C} \); reactor pressure > than 100 bar. The per-pass conversion in the reactor is between \( 15-25 \% \).