Table 8. Performance of Efficient Membrane Reactors (NH3 Conversion >99; H2 Recovery >90%) for Hydrogen Production from Ammonia Decomposition.
| Author(s) [ref] | Catalyst loading [wt %] (catalyst) | Membrane type and thickness [μm] | Temperature [°C] | Pressure [bar] | Pressure permeaten [bar] | NH3 conversion [%] | H2 recovery [%] | Volumetric productivity [mol m–3 s–1] | Total catalyst utilization [g/cm2] |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al.17 | 0.41 (Cs-Ru/YSZ) | Pd, 6.2 | 450 | 5 | 1 | >99 | – | 31.6 | N/A |
| Cechetto et al.40 | 2 (Ru/Al2O3) | Pd-Ag, 6–8 | 500 | 6 | 1 | 99.8 | 91.6 | 1.2a | 2.915a |
| Cechetto et al.65 | 2 (Ru/Al2O3) | Pd-Ag, 4.61 | 450 | 5 | 1 | 99.7 | 90.5 | 1.2a | 2.992a |
| 400 | 4 | Vacuum | 99.3 | 93.5 | 1.3a | 2.814a | |||
| Cerrillo et al.66 | 5 (Ba-CoCe) | Pd-Au, 8 | 485 | 5 | 1 | 99a | 91a | N/A | 0.143 |
| Jiang et al.77 | 3 (Ru-Y-K/Al2O3) | Pd-Ag, 1.8 | 450 | 7 | 1 | >99.1 | >90.6 | >40.8a | 0.168a |
| Kim et al.82 | 2 (Ru/Al2O3) | Pd, 5 | 430 | 5 | Vacuum | 99.4 | 97.5 | 1.5a | N/A |
| Sitar et al.87 | 1.9 (Ru/YSZ) | Pd, 4.23 | 450 | 5 | 1 | >99 | >90 | 54.2 | 0.221 |
| 0.5 (Ru/α-Al2O3) |
a
Not directly reported in the publication. Calculated based on provided membrane/reactor properties and performance values.