采用响应面法研究温度、乙醇浓度、质量空速对锌、锰、钴改性的HZSM-5催化乙醇脱水制备乙烯过程中乙烯收率的影响。结果表明反应温度对乙烯收率影响最大,并且各因素之间存在交互作用。用响应面方法确定乙醇脱水制备乙烯的最佳工艺条件是:温度261.3℃,乙醇浓度34.4%,质量空速1.18 h-1,在该条件下乙烯收率达到98.69%。 Response surface methodology was used to study the effects of temperature, ethanol concentration and mass space velocity on the ethylene yield during the dehydrogenation of ethanol to HZSM-5 catalyzed by zinc, manganese and cobalt. The results showed that the reaction temperature had the greatest effect on the yield of ethylene, and there was interaction between the factors. The optimal reaction conditions for the production of ethylene from ethanol by response surface methodology were as follows: temperature 261.3 ℃, ethanol concentration 34.4%, mass space velocity 1.18 h-1, yield of ethylene reached 98.69%.