| HZSM-5分子筛催化剂上乙醇脱水制乙烯的工艺分析 |
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| 引用本文： | 梁丹霞. HZSM-5分子筛催化剂上乙醇脱水制乙烯的工艺分析[J]. 化学工程师, 2012, 26(2): 59-61,69 |
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| 作者姓名： | 梁丹霞 |
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| 作者单位： | 台州学院医药化工学院,浙江临海,317000 |
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| 摘 要： | 对商品化的HZSM-5分子筛催化剂的乙醇脱水性能进行了考察,结果表明：使用HZSM-5分子筛催化剂时,随着反应温度的升高,气态产物中正丁烯的含量增加,乙烯的含量下降,说明分子筛的表面酸性过强,不能有效的抑制乙烯的二聚反应,脱水反应条件是：反应温度240~260℃,空速范围0.7~1.0h-1,乙烯的收率在98%以上,适用于低浓度乙醇的脱水反应。
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| 关 键 词： | 乙醇 乙烯 HZSM-5分子筛 |
Technology analysis dehydration of ethanol to ethylene on HZSM-5 molecule sieve |
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| LIANG Dan-xia. Technology analysis dehydration of ethanol to ethylene on HZSM-5 molecule sieve[J]. Chemical Engineer, 2012, 26(2): 59-61,69 |
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| Authors: | LIANG Dan-xia |
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| Affiliation: | LIANG Dan-xia (School of Pharmaceutical and Chemical Engineering,Taizhou University,Linhai 317000,China) |
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| Abstract: | By the research of ethanol dehydration performance of commercial HZSM-5 molecule catalyst,the results showed that the content of the ethylene obviously dropped with increased of the reaction temperature using HZSM-5 molecule,and it can not suppress ethylene dimer polymerized reaction for the molecule surface strong acidities.The dehydration condition of HZSM-5 molecule is that reaction temperature is 240～260℃,space velocity is 0.7~1.0h-1,ethylene yield is more than 98%,it is suitable for the dehydration of the low ethanol concentration. |
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| Keywords: | ethanol ethylene HZSM-5 molecule sieve |
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