Simulation results and discussion of modelling issues

3 Temperature profiles along the different sections of the MREF, at various radial positions, (a) Along the total length of the reactor for reforming section and hot gas section at different radial positions and (b) detailed analysis of the profiles in the reformer inlet region, where the feed inlet is subjected to a steep temperature drop (HG, hot gas Ref, reformer Perm, permeate). 

4 Hydrogen molar fraction profiles along the MREF at various radial positions, (a) On the reformer section and (b) on the permeate section. (Ref, reformer Perm, permeate). 

5 (a)Temperatures along the MREF whole semi-axial section of the system and close-up for left and right edges (b) hydrogen molar fraction for left and right edges of the reactor. 

Despite the presence of the packed bed, the calculated pressure loss on the reformer section is very low, accounting for approximately 4.6 kPa. This is due to the small velocities of the reforming stream (i.e., around 0.16 m/s). On permeate and hot gas sides the pressure losses are negligible. 

1 Heating stream co-current flow versus counter-current flow 

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