| abstract |
The invention discloses a method for preparing propylene through conversion of methanol, mainly aiming at solving the problems that the stability of catalyst is poor and the propylene selectivity is not high in the prior art. The technical scheme is that methanol water solution is used as raw materials, nanometer ZSM-5 molecular sieves which contain Fe, Co, Mo oxides are used as catalyst active main bodies, and the propylene is produced through the conversion of the methanol on a catalyst bed under the conditions that the reaction temperature is 400-600DEG C, the reaction pressure is 0.01-5MPa, the methanol weight space velocity is 0.5-15h<-1> and the mass ratio of water to the methanol is (0.2-5):1. By adopting the technical scheme, that problems are better solved and the method can be used for the industrial production of the propylene which is produced through the conversion of the methanol. |