响应面法优化Zn-Mn-Co/HZSM-5催化乙醇脱水制乙烯  

Optimization of ethylene production from ethanol dehydration using Zn-Mn-Co/HZSM-5 by response surface methodology

作　　者：王伟[1,2] 程可可[2] 薛建伟[1] 张建安[2] 

机构地区：[1]太原理工大学精细化工研究所,太原030024 [2]清华大学核能与新能源技术研究院,北京100084

出　　处：《生物工程学报》2011年第3期412-418,共7页Chinese Journal of Biotechnology

基　　金："十一五"国家科技支撑计划(No.2006BAC02A17)资助~~

摘　　要：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%。The effects of reaction temperature,ethanol concentration and weight hourly space velocity（WHSV） on the ethylene production from ethanol dehydration using zinc,manganese and cobalt modified HZSM-5 catalyst were investigated by response surface methodology（RSM）.The results showed that the most significant effect among factors was reaction temperature and the factors had interaction.The optimum conditions were found as 34.4% ethanol concentration,261.3 °C of reaction temperature and 1.18 h-1 of WHSV,under these conditions the yield of ethylene achieved 98.69%.

关 键 词：乙醇 脱水 乙烯 响应面法 HZSM-5 

分 类 号：TQ221.211[化学工程—有机化工]