Title : Catalytic and photocatalytic membrane reactors
The search for alternative methods to those applied for chemical production at an industrial level, such as reduction and oxidation processes, has become more intense. Many studies emphasize the innovative potentialities and the emerged role of the membrane reactors (MRs) [1,2] for improving existing industrial processes and for introducing new production methodologies. With respect to conventional reactors, MRs can improve the efficiency of chemical conversion processes reducing reactants consumption and by-product formation (and also reducing polluting emissions) by controlling of the residence time of substrate molecules inside the reactor. The membrane allows not only the easy recovery and reuse of the catalyst, immobilized on the membrane or just maintained in suspension, but also the selective separation of the desired product from the reaction mixture contributing to limit side reactions [1,2]. On this basis, improvements in terms of yield and selectivity can be expected. Higher energy efficiency, modularity, and easy scale-up are some other advantages of MRs with respect to conventional fixed bed reactors.