| 改性膨润土催化乙醇流化床脱水制乙烯 |
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| 引用本文： | 洪爱珠,颜桂炀,刘欣萍,肖荔人,陈庆华.改性膨润土催化乙醇流化床脱水制乙烯[J].广州化学,2008,33(2):13-18. |
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| 作者姓名： | 洪爱珠 颜桂炀 刘欣萍 肖荔人 陈庆华 |
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| 作者单位： | 福建师范大学,化学与材料学院,福建省改性塑料技术开发基地,福建,福州,350007 |
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| 基金项目： | 国家科技支撑计划
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教育部跨世纪优秀人才培养计划
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福建省教育厅资助项目 |
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| 摘 要： | 以浸渍法制备的改性膨润土为催化剂，在自行设计的流化床装置上评价了乙醇脱水制乙烯的催化性能；采用X-射线衍射（XRD）、傅里叶变换红外（FT-IR）、扫描电镜（SEM）、比表面分析（BET）和热重分析（TG）等手段对催化剂的理化性能进行表征，同时考察了不同催化剂制备条件和催化反应条件等工艺因素对催化剂性能的影响。结果表明，当硫酸质量分数为44％，水洗至pH值为4～5，添加0．15g混合氯化稀土，反应温度为270℃，乙醇的进样流速为013mL／min，催化剂用量3g，催化反应的活性最佳，出口乙烯气体的体积分数可达8．56×10^-1。
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| 关 键 词： | 改性 膨润土 流化床 乙醇 脱水 乙烯 |
| 文章编号： | 1009-220X(2007)02-0013-06 |
| 修稿时间： | 2007年7月15日 |
Preparation of Ethene Through Ethanol Dehydration in Fluid Bed with Modified Bentonite as Catalyst |
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| HONG Ai-zhu,YAN Gui-yang,LIU Xin-ping,XIAO Li-ren,CHEN Qing-hua.Preparation of Ethene Through Ethanol Dehydration in Fluid Bed with Modified Bentonite as Catalyst[J].Guangzhou Chemistry,2008,33(2):13-18. |
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| Authors: | HONG Ai-zhu YAN Gui-yang LIU Xin-ping XIAO Li-ren CHEN Qing-hua |
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| Institution: | ( College of Chemistry and Materials Science, FujianNormal University, Fuzhou 350007, Fujian, China; Fujian Modified Plastic Research ＆ Develop Technology Base, Fuzhou 350007, Fujian, China ) |
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| Abstract: | The catalytic activity of modified bentonite prepared by impregnation method was examined on ethanol dehydration in the self-design fluid bed to prepare ethene.The catalyst was characterized by XRD,FT-IR,SEM,BET and TGA.The effects of catalyst preparation and reaction conditions on the catalytic activity were investigated.The results showed that when sulfuric acid concentration was 44 wt%,pH value was 4 ~ 5,chloridize thulium amount was 0.15 g,reaction temperature was 270℃,ethanol flow velocity was 0.3 mL/min,the catalyst amount was 3 g,the best catalytic activity was obtained,the concentration of ethene gas could reach 8.56×105 ppm. |
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| Keywords: | modified bentonite fluid bed ethanol dehydration ethene |
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