Production of PX from toluene methanol

Sinopec Yangzi Petrochemical’s 200,000 tons per year industrial demonstration plant for the production of p-xylene via toluene methanol alkylation. The most attractive feature of this process is that the yield of PX is twice as high as that of traditional toluene selective disproportionation processes. It also has many advantages: the amount of toluene required to produce 1 ton of PX product can be reduced from about 2.8 tons in the toluene stereoselective disproportionation method to 1.1 tons ； The price of raw material methanol is relatively low. Therefore, the process of selective alkylation of toluene methanol to produce PX is expected to become an important component of modern integrated aromatic plants. The new technology for p-xylene production uses toluene and methanol as raw materials, employing a circulating fluidized bed process to manufacture p-xylene.