| 活性炭负载型固体碱催化酯交换反应的研究 |
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| 引用本文： | 刘贤响,刘姣,苏胜培,尹笃林.活性炭负载型固体碱催化酯交换反应的研究[J].广西化工,2013(12):11-14. |
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| 作者姓名： | 刘贤响 刘姣 苏胜培 尹笃林 |
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| 作者单位： | 资源精细化与先进材料湖南省高校重点实验室,湖南师范大学化学化工学院,湖南长沙410081 |
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| 基金项目： | 湖南省教育厅资助科研项目（13C562）,湖南师范大学青年基金资助项目（21101） |
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| 摘 要： | 采用浸渍法制备了活性炭负载KOH固体碱催化剂，考察了它们在三醋酸甘油酯与甲醇酯交换反应中的催化性能，及时间、温度、催化剂用量、醇酯摩尔比等因素对酯交换反应的影响。结果表明，当醇酯比为9：1，催化剂用量为0．3g（三醋酸甘油酯为0．02mol），KOH浸渍液浓度为20．0wt％，反应温度为65℃，反应1．0h，三醋酸甘油酯转化率可达到94．7％。该工艺操作简单，催化剂可以回收，过程无三废污染。
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| 关 键 词： | 活性炭 负载型 固体碱 催化 酯交换 |
Study on Transesterification Catalyzed by Solid Base Supported on Activated Carbon |
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| LIU Xian-xiang,LIU Jiao,SU Sheng-pei,YIN Du-lin.Study on Transesterification Catalyzed by Solid Base Supported on Activated Carbon[J].Guangxi Chemical Industry,2013(12):11-14. |
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| Authors: | LIU Xian-xiang LIU Jiao SU Sheng-pei YIN Du-lin |
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| Affiliation: | (The Key Lab of Resources Fine-Processing and Advanced Materials of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China) |
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| Abstract: | Transesterification of glycerol triacetate and methanol catalyed by KOH supported on activated carbon was studied. The catalyst was prepared by impregnation and had a high catalysis activity. Effects of some factors on the transesterification were investigated systematically and reaction conditions were optimized. The optimized reaction conditions on the catalyst were： molar ratio of methanol to oil 9：1, the amount of catalyst 0.3g（the amount of glycerol triacetate 0.02mol）, the consistency of KOH 20.0wt%, reaction temperature 65 ℃ and reaction time 1.0h, under these conditions the conversion ofbiodiesel reached 94.7%. The new technology featured simplicity, reusable catalyst, zero pollution. |
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| Keywords: | activated carbon supported solid base catalyze transesterification |
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