The most commonly used catalysts in the MTO process are zeolites, particularly the SAPO-34 (Silicoaluminophosphate-34) and ZSM-5 (Zeolite Socony Mobil-5) types. These catalysts are chosen for their high selectivity and activity in converting methanol to olefins. The unique pore structure of these zeolites allows for the efficient formation and diffusion of olefin molecules, thereby enhancing the overall productivity of the process.
