Decomposition of supercritical ammonia and modeling of supercritical ammonia-nitrogen-hydrogen solutions with applicability toward ammonothermal conditions

- Experimental data collected for pure NH3 at T > 700 K, ρ = 14-25 mol/l.
- Simple equation of state (EOS) for NH3, N2 and H2 derived and fit to reference data.
- Accurate EOS for NH3, N2 and H2 mixtures with polar/non-polar mixing contributions.
- Decomposition of NH3 for P > 100 MPa calculated and experimentally verified.
- Successful modeling of total system pressure and equilibrium mole fraction of NH3.