Table 6. Overview of Performance Achieved When Operating a Membrane Reactor with the Permeate at Vacuum Conditions.
| Author(s) [ref] | Temperature [°C] | Reaction pressure [bar] | NH3 feed flow rate [mLN/min] | Space velocity [mLN/(gcat h)] | NH3 conversion [%] | H2 recovery [%] |
|---|---|---|---|---|---|---|
| Cechetto et al.65 | 400 | 4 | 500 | 120 | 99.3 | 93.5 |
| Li et al.76 | 400 | 1 | 10 | N/A | 84 | 77 |
| Itoh et al.79 | 450 | 1 | 10 | 1200 | 87a | 59a |
| Itoh et al.80 | 400 | 1 | 10 | 682 | 76a | N/A |
| Kim et al.82 | 430 | 5 | 950 | N/A | 99.4 | 97.5 |
a
Data not directly reported in the publication and retrieved from graphic representation of experimental results.