| 甲醇脱水制二甲醚的催化剂研究 |
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| 引用本文： | 关虹霞. 甲醇脱水制二甲醚的催化剂研究[J]. 齐鲁石油化工, 2010, 38(3): 194-197 |
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| 作者姓名： | 关虹霞 |
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| 作者单位： | 中国石油天然气股份有限公司东北销售大庆分公司,黑龙江大庆163314 |
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| 摘 要： | 在甲醇气相脱水合成二甲醚反应中,考察了催化剂酸性及反应工艺条件对反应的影响。分子筛的Bronsted酸中心和Lewis酸中心都是甲醇脱水反应的活性中心,而强酸中心是烯烃产生的主要场所。研究表明,采用硅铝比为60的HZSM-23分子筛作为催化剂,适宜的工艺条件为:反应质量空速5 h-1,温度300℃,压力0.1MPa,甲醇转化率为97.6%,二甲醚选择性为95%。
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| 关 键 词： | 甲醇 二甲醚 酸性 催化剂 工艺条件 |
STUDY ON CATALYST FOR PREPARATION OF DIMETHYL ETHER FROM METHANOL DEHYDRATION |
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| Guan Hongxia. STUDY ON CATALYST FOR PREPARATION OF DIMETHYL ETHER FROM METHANOL DEHYDRATION[J]. Qilu Petrochemical Technology, 2010, 38(3): 194-197 |
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| Authors: | Guan Hongxia |
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| Affiliation: | Guan Hongxia(China National Petroleum Corporation Northeast sales Daqing Branch Company,Daqing,Heilongjiang,163314) |
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| Abstract: | This paper studied catalyst acidity and reaction process conditions in gas phase dehydration of methanol for dimethyl ether reaction.Bronsted acid sites and Lewis acid sites of molecular sieve are both active sites of methanol dehydration reaction,and strong acid sites are the main active sites for olefin production.Research results show that adopting HZSM-23 molecular sieve with Si/Al ratio 60 as the reaction catalyst,optimum process conditions include feedstock space velocity 5h-1,reaction temperature 300℃,reaction pressure 0.1MPa,conversion yield of methanol 97.6%,selectivity of dimethyl ether 95% |
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| Keywords: | methanol dimethyl ether acidity catalyst process conditions |
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