| 摘要: |
| 采用浸渍法制备了CaO/MgO/γ-Al2O3固体碱催化剂,研究表明在n(Ca)∶n(Mg)为4∶1,负载量以CaO计算为18%(w),在750 ℃下煅烧12 h的条件下所制备的催化剂具有很好的催化效果。催化棕榈油制备生物柴油的最佳工艺条件为:反应时间2 h、反应温度60 ℃、醇油摩尔比7∶1、催化剂用量为油质量的3.5%。在此条件下,产率可达到95.3%。 |
| 关键词: 生物柴油 固体碱催化剂 棕榈油 酯交换 |
| DOI：10.3969/j.issn.1007-3426.2014.03.006 |
| 分类号:TE667 |
| 基金项目:辽宁省科技厅项目“碱性介孔分子筛制备生物柴油的研究”(20081104)。 |
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| Process optimization for preparing biodiesel from plam oil with CaO/MgO/γ-Al2O3 solid base catalyst |
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Lu Chuanzhu1, Wang Jian1, Li Zhichao1, Li Huipeng1, Zhao Hua1, Zhang Deqing2
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1.School of Petrochemical Engineering, College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, Liaoning, China;2.Liaohe Oilfield Economic and Trade Realty Corporation, Panjin 124010, Liaoning, China
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| Abstract: |
| Supported CaO/MgO/γ-Al2O3 solid base catalysts were prepared by using impregnation method. The optimal preparation conditions of catalyst which has good catalytic effect were defined as follows:the molar ratio of Ca to Mg is 4∶1, calcinated at 750 ℃ for 12 h, and mass ratio of CaO to γ-Al2O3 is 18%. It was used to catalyze methyl esterification of palm oil. The results showed that the highest yield was 95.3% when the molar ratio of methanol to oil was 7∶1 with addition 3.5% (wt%)CaO/MgO/γ-Al2O3 of oil and reacted at 60 ℃ for 2 h. |
| Key words: biodiesel solid base catalyst palm oil transesterification |
