Use of Pd-Ag Membrane Reactors for Low-Temperature Dry Reforming of Biogas-A Simulation Study.

Biogas is a valuable renewable energy source that can help mitigate greenhouse emissions. The dry reforming of methane (DRM) offers an alternative hydrogen production route with the advantage of using two main greenhouse gases, CO and CH. However, its real application is limited mainly due to catalyst deactivation by coke formation and the reverse water gas shift (RWGS) reaction that can occur in parallel.

Novel Adsorption-Reaction Process for Biomethane Purification/Production and Renewable Energy Storage.

This work proposes an innovative method for the simultaneous upgrading of biogas streams and valorization of the separated CO, through its conversion to renewable methane. To this end, two sorptive reactors were filled with a layered bed containing a CO sorbent (K-promoted hydrotalcite) and a methanation catalyst (Ru/AlO). The continuous cyclic operation of the parallel sorptive reactors was carried out by alternately feeding a biogas stream (CO/CH mixture) or H.