You have been asked to develop a Process Flow Diagram, including simplified mass balances, for Ammonia production. Hafiwo Consulting Group would like you to:

Design, simulate and optimise a simplified ammonia production plant that produces low carbon ammonia

Develop a process description to accompany a corresponding Process Flow Diagram (PFD) that you simulated on Aspen Hysys

Use a simulation tool of your choice (e.g. Matlab or Excel or paper based calculation) to provide a comparison on a process wide mass balance with your simulation stream results, including a degree of freedom analysis. (You might need to relax some constraints, if you feel you need to then use your sound engineering judgement and dont forget to justify any assumptions made)

Using the simulation model, show the effect of changing the Purge flow and discuss your results. Change the purge flow in the range from 1% to 10% of recycle flow, and draw graphs showing:

a) The total molar purge flow

b) The ammonia product purity

c) Recycle flow

d) Recycle compressor energy