| KOH负载的不同催化剂催化合成生物柴油 |
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| 引用本文： | 杨玲梅,吕鹏梅,袁振宏,罗文,李惠文,王忠铭,苗长林.KOH负载的不同催化剂催化合成生物柴油[J].化工进展,2012(Z1):91-94. |
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| 作者姓名： | 杨玲梅 吕鹏梅 袁振宏 罗文 李惠文 王忠铭 苗长林 |
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| 作者单位： | 中国科学院广州能源研究所中国科学院可再生能源与天然气水合物重点实验室 |
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| 基金项目： | 国家科技支撑计划项目(2011BAD22B05) |
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| 摘 要： | 采用湿法浸渍法研究了五种KOH负载的催化剂催化合成生物柴油反应,并采用XRD﹑SEM﹑CO2-TPD等方法对其进行结构和性能表征。结果表明,15%(质量分数,下同)KOH负载的CaO催化酯化活性最高,在醇油摩尔比16∶1,反应温度65℃,催化剂加入量为4%条件下,反应1h,脂肪酸甲酯收率达到97.1%。KOH负载的CaO催化剂中出现了K2O的晶相,15%CaO/KOH催化剂有更多的活性位点,有利于生物柴油酯交换反应。
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| 关 键 词： | 氢氧化钾 生物柴油 氧化钙 酯交换 |
Synthesis of biodiesel by different KOH loading catalysts |
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| YANG Lingmei,LV Pengmei,YUAN Zhenghong,LUO Wen,LI Huiwen, WANG Zhongming,MIAO Changlin.Synthesis of biodiesel by different KOH loading catalysts[J].Chemical Industry and Engineering Progress,2012(Z1):91-94. |
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| Authors: | YANG Lingmei LV Pengmei YUAN Zhenghong LUO Wen LI Huiwen WANG Zhongming MIAO Changlin |
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| Affiliation: | (Key Laboratory of Renewable Energy and Gas Hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences,Guangzhou 510640,Guangdong,China) |
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| Abstract: | Five different KOH loading catalysts for biodiesel synthesis was studied.The catalyst was preparation by wet impregnation.The structure and performance of the catalysts were studied by using XRD,CO2-TPD,SEM.The 15wt% KOH/CaO catalyst has suggested to be the best formula due to the yield of fatty acid methyl esters of 97.1% at the temperature of 65 ℃ within 1 h at a 16∶1 molar ratio of methanol to bean oil and a catalyst amount of 4wt%.KOH loaded on CaO has a new crystalline phase of K2O.At the same time the catalyst of 15-CaO/KOH has more activity site than the catalyst of MgO/KOH.This was the reason that the catalyst of 15-CaO/KOH has higher transesterification activity. |
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| Keywords: | KOH biodiesel calcium oxide transesterification |
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