Membrane engineering for a sustainable production of ethylene

Abstract

Abstract The existing processes producing light olefins are highly energy intensive, requiring innovative approaches. Membrane engineering, as already demonstrated in different fields, can have an interesting share in the shift towards sustainable productions. The current abundant availability of ‘shale gas’ requires sustainable choices and a delocalized approach that avoids underutilization or waste of methane. This scenario is highly favourable for new technologies such as the Membrane Reactors that are advanced reactors in the Process Intensification logic. Membrane Reactors can accomplish the methane conversion to ethylene, valorizing these resources. In addition, being modular and automated, they are particularly suited for dislocated/remote locations. At the same time, Membrane Reactors can exploit the potential of CO2 as feedstock through a recycle strategy. Different conversion options and the most promising membrane-based alternatives are described, proposing their integration for a sustainable ethylene production.