Thermodynamic Evaluation of Hydrogen Production Modes during Ammonia Pyrolysis in the Swiss-Roll Reactor

A thermodynamic assessment of the optimal conditions for obtaining hydrogen during ammonia pyrolysis in a Swiss-roll reactor with separate supply of ammonia and air was carried out. The calculations were carried out for a volumetric flow of ammonia equal to 1 mol/s at atmospheric pressure. To evaluate the modes of ammonia pyrolysis with the production of hydrogen, the proportion of hydrogen burned was varied by changing the molar flow of oxygen. The ratio of volumetric gas flows and thermal powers of incoming and outgoing flows was calculated. Optimal process characteristics for different values of ammonia pyrolysis temperature have been determined.