Abstract: The strengthening of hydrogen generation process of ethanol steam reforming was realized by adsorption strengthened technology. The effects of temperature, water/alcohol, and liquid space velocity on the reaction characteristics of none-strengthened hydrogen generation from ethanol steam reforming were studied. Based on this study, adsorption strengthened reforming reaction characteristics of ethanol and water was investigated. The optimal reaction condition was determined by response surface method as the temperature of 423±1 ℃, the ratio of water to ethanol 10.5±0.3, and liquid space velocity 0.13 h?1. Under this condition, hydrogen yield is 3.2 mol/mol, hydrogen production rate increases 51.7%, the hydrogen content is 88.91%, and the hydrogen content increases 22.9%. Simultaneously, reaction temperature is lowered by 178 ℃, the energy consumption is reduced, CO2 emission is also effectively controlled.

Key words: ethanol, adsorbent, catalyst, hydrogen

摘要： 采用吸附强化技术强化了乙醇水重整制氢过程。考察了温度、水醇比、液空速对无强化乙醇水重整制氢反应特性的影响，在此基础上研究了吸附强化乙醇水重整制氢反应特性。通过响应面法确定了吸附强化乙醇水重整制氢最优工艺条件为温度422～444 ℃、水醇比10.2～10.8、液空速0.13 h?1，在此条件下的氢产率为3.2 mol/mol，同比提高了51.7%，氢含量为88.91%，同比提高了22.9%，反应温度降低了178 ℃，降低了能耗，控制了CO2排放。

关键词: 乙醇, 吸附剂, 催化剂, 氢气