Membrane Reactors: Advanced Systems for Intensified Chemical Processes

Abstract

To realize sustainable growth, the energy demand and environmental impact of chemical processes need to be reduced. Multifunctional membrane reactors (MRs) are a feasible way to shift the industrial catalysis towards novel intensified processes, since they combine a chemical reaction with a membrane-based separation. Compared to traditional, sequential reaction-separation systems, MRs require less energy, show increased productivity and reduced by-product formation, easier down-and up-stream processing, compact process equipment as well as the possibility of heat recovery and catalyst recycling.

Process intensification in a photocatalytic membrane reactor: Analysis of the techniques to integrate reaction and separation

“…In many applications, process intensification [1][2][3][4][5][6] is the result of the concurrent action of these two processes because significant benefits are obtained in comparison with the same unit operations in series. Therefore, the interest and the research about membrane reactors is increasing because the benefits ultimately make more convenient and sustainable processes possible, which are currently the key objectives of the chemical industry.…”

Catalytic Ionic‐Liquid Membranes: The Convergence of Ionic‐Liquid Catalysis and Ionic‐Liquid Membrane Separation Technologies

“…CMs may be composed of a catalytically active material, contain an embedded catalyst, or act as a catalyst support. Catalytically active membranes are primarily formed from metal membranes, whereas both ceramic and polymer membranes are used as catalyst beds and supports . The first example of a CM comprised a palladium membrane for the separation of hydrogen from gaseous mixtures with the concomitant transformation of chlorine–water into hydrochloric acid.…”