Cavity-controlled methanol conversion over zeolite catalysts

ABSTRACT The successful development and application in industry of methanol-to-olefins (MTO) process brought about an innovative efficient route for olefin production via non-petrochemical resources also attracted attention C1 chemistry zeolite catalysis. Molecular sieve catalysts with diversified microenvironments embedding unique channel/cavity structure acid properties, exhibit demonstrable features advantages the shape-selective catalysis MTO. Especially, over 8-MR cavity-type zeolites acidic supercage environment narrow pore opening manifested special host–guest interaction between catalyst guest reactants, intermediates products. This caused great differences product distribution, deactivation molecular diffusion, revealing cavity-controlled methanol conversion catalyst. Furthermore, dynamic complicated cross-talk behaviors material (coke)-reaction-diffusion these types determines catalytic performance conversion. In this review, we shed light on principle MTO reaction including active formation, routes involvement complex network, diffusion. All were exhibited by performances selectivity catalysts. Advanced strategies inspired developed, providing promise optimization precise control process.