| abstract |
The diameter of the material which is a catalyst and contains a molecular sieve, the molecular sieve structure has at least one-dimensional 8-membered ring small pore passage, and can be diffused in the direction of the 8-membered ring passage is 2.0 Å or more. The diameter of the substance that can be contained in the molecular sieve structure is 6 Å or less. The catalyst is used in a reaction to produce propylene from methanol and / or dimethyl ether and comprises contacting methanol and / or dimethyl ether with a catalyst to produce propylene from methanol to obtain propylene. |