Methane Dehydro-Aromatization: Potential of a Mo/MCM-22 Catalyst and Hydrogene-Selective Membranes

摘要

The exploitation of methane to produce aromates is already seen for a long time as very attractive. Although investigated intensively, methane dehydro-aromatization (MDA) is far from being applied industrially. MDA under non-oxidative conditions is severely limited by thermodynamics and rapid catalyst deactivation. Mo/MCM-22 was reported as a promising catalyst. Thus, kinetic experiments were performed to parametrize rate expressions and to identify trends regarding the selectivity-conversion behavior including catalyst deactivation. Finally, mass transfer was described mathematically to evaluate the potential of hydrogen-selective membranes within a membrane reactor of the extractor type. Such a removal would be beneficial to overcome the thermodynamic limitations.