Fluidized bed method for producing p-xylene through shape-selective toluene and methanol alkylation

The invention relates to a fluidized bed method for producing p-xylene through shape-selective toluene and methanol alkylation, and mainly solves the problem of lower selectivity for p-xylene in the prior art. The fluidized bed method for producing the p-xylene through the shape-selective toluene and methanol alkylation comprises the steps as follows: 1), raw materials enter a reaction zone of a fluidized bed reactor after heated and are contacted with an alkylation catalyst, and a mixture flow of the p-xylene is generated; 2), the mixture flow enters a rapid gas-solid separation zone, a separated gaseous product enters a follow-up separation section, a separated catalyst enters a toluene pre-contact region, at least one part of the catalyst in the toluene pre-contact region enters a regenerator for regeneration after steam stripping by a steam stripping zone, and a regenerated catalyst is formed; and 3), the regenerated catalyst returns to the reaction zone for continuous reaction. With the adoption of the t