Structured Foam Reactor with CuSSZ-13 Catalyst for SCR of NOx with Ammonia

In this paper, both a structured catalyst based on FeCrAl (Kanthal) foam with in situ synthesized CuSSZ-13 and powder CuSSZ-13 were prepared and tested in NH3-SCR. The kinetic data derived at diffusion-free parameters window were combined with mass transport and pressure drop correlations (experiments from our previous work [1]) for three typical reactor packings: FeCrAl (Kanthal) foam, monoliths and packed beds with two latters used as a references. Based on correlations derived the three packings were compared in terms of pressure drop and reactor length. For the assumed evaluation criteria of 90 % of NOx conversion the simulations show that the packed bed reactor is beyond the comparison with the structured reactors. The foam reactor can demonstrate low pressure drop that is comparable to the monoliths and can be shorter than the monolithic one. The findings confirm high mass and heat transport parameters of metal foams.