The risers of a conventional fluidized bed reactor and a stage fluidized bed reactor for the convention of methanol to olefins (MTO) were simulated using computational fluid dynamics. The reaction rates of the MTO reaction were validated to successfully match with the literature experiment. Then, the reactor stage parameters were examined by using the 2^k design of the experiment method, including the number of reactor stages, the thickness of the reactor stage, and the wall temperature of the reactor stage. The stage circulating fluidized bed riser decreased the yield of ethene but increased the yield of propene and light olefins. From the obtained solid volume fraction profile, the stage circulating fluidized bed riser could reduce the back-mixing and increase the system turbulence, which promotes the light olefins of the MTO reaction yield. The wall temperature of the reactor stage did not significantly affect the chemical reaction in the circulating fluidized bed riser.

使用计算流体动力学模拟了常规流化床反应器和分级流化床反应器的立管，用于​​常规甲醇制烯烃（MTO）。验证了MTO反应的反应速率与文献实验成功匹配。然后，通过使用2 ^k实验方法的设计，包括反应器级数，反应器级厚度和反应器壁温度。阶段循环流化床提升管降低了乙烯的产率，但是增加了丙烯和轻烯烃的产率。从获得的固体体积分数分布图来看，该级循环流化床提升管可以减少反混并增加系统湍流，从而提高了轻质烯烃的MTO反应产率。反应器段的壁温没有显着影响循环流化床立管中的化学反应。