Aspen Plus is used to establish an ammonia decomposition model for hydrogen production using ammonia combustion as the energy source
to analyze the factors affecting the ammonia decomposition rate
and to study the adiabatic flame temperature and NO emission during ammonia combustion in detail. Finally
the two systems using ammonia combustion and hydrogen combustion as the energy source were compared. The results show that ammonia decomposition mainly occurs at the inlet of the decomposition reactor
and the heat provided at the inlet can significantly improve the decomposition efficiency. The ammonia decomposition rate is negatively correlated with reactor pressure and positively correlated with temperature. Systems that use ammonia combustion as an energy source reduce NO emissions by as much as 50% about compared to systems that use hydrogen combustion as an energy source.
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