Multi-stage membrane reactors for hydrogen production by ammonia decomposition

Abstract

Citation: Abashar MEE. Multi-stage membrane reactors for hydrogen production by ammonia decomposition. Abstract A heterogeneous mathematical model is used to simulate a cascade of multi-stage fixed bed membrane reactors (MSFBMR) for the decomposition of ammonia. The numerical results show that a single fixed bed membrane reactor (FBMR) exhibits a poor performance and limited by the kinetics to give 29.49% exit ammonia conversion, whereas efficient seven multi-stage beds achieve 100% ammonia conversion. An effective hydrogen permeation zone has been identified by a critical point. It is observed that the locus of the total inter-stage heating load assumes a maximum inflection point. The results show that the multi-stage fixed bed membrane reactors configuration has many benefits and can the future generation of reactors for production of hydrogen.