Methanol Conversion over HZSM-22: the reaction mechanism and the effect of olefins aromatics addition

Abstract

Methanol to olefin (MTO) conversion was studied on a home-made pulse reaction system. Under proper reaction conditions, complete conversion of methanol into olefins can be achieved over HZSM-22, which was previously reported to fail in the conversion of methanol to olefins. 13C labelling experiments and the addition of olefins and aromatics all indicate that the methanol conversion followed hydrocarbon pool mechanism is prohibited over HZSM-22 and the olefins methylation and cracking mechanism predominantly occurs