| abstract |
The invention discloses molecular sieve based catalyst and its preparations, application method that one kind directly prepares multi-methyl benzene, by CO, methanol, dimethyl ether or C 1 ‑C 8 The raw materials such as non-aromatics prepare the molecular sieve based catalyst of multi-methyl benzene (durol-hexamethylbenzene), using ZSM-12 molecular sieve as main component, multicomponent catalyst can be constituted with metal and/or structure reinforcing agent and/or stabilization aid, the preparation method of ZSM-12 molecular sieve and the preparation method that multicomponent catalyst is prepared using it, in aromatization, 450-520 DEG C of temperature, multi-methyl benzene yield of the raw material weight air speed in 0.2-15g/g/h, gained organic liquid phase product is higher than 80%. |