Advancements in solid acid catalysts for ecofriendly and economically viable synthesis of biodiesel
Advancements in solid acid catalysts for ecofriendly and economically viable synthesis of biodiesel
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DOI：
10.1002/bbb.253
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发表时间：
2012-08
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影响因子：
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通讯作者：
Y. Sharma;Bhaskar Singh;J. Korstad
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文献类型：
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作者：
Y. Sharma;Bhaskar Singh;J. Korstad
固体酸（多相）催化剂在酯化和酯交换反应中具有独特的优势，从而提高了高酸值油脂作为合成生物柴油原料的利用率。各种固体酸催化剂如树脂、钨酸化和硫酸化氧化锆、聚苯胺硫酸盐、杂多酸、金属络合物、硫酸化氧化锡、沸石、酸性离子液体等已被探索作为潜在的非均相催化剂。催化剂的活性略有不同，导致中等至高的转化率和产率。固体催化剂的再利用取决于它们的失活、中毒和在反应介质中的浸出程度。这些催化剂用于合成生物柴油的适用性沿着与他们的可重复使用方面进行了讨论。© 2010年化学工业协会和约翰威利父子有限公司
Solid acid (heterogeneous) catalysts have a unique advantage in esterification and transesterification reactions which enhances the use of high acid value oil to be used as feedstock for synthesis of biodiesel. Various solid acid catalysts such as resins, tungstated and sulfated zirconia, polyaniline sulfate, heteropolyacid, metal complexes, sulfated tin oxide, zeolite, acidic ionic liquid, and others have been explored as potential heterogeneous catalysts. The activity of the catalyst differs slightly resulting in moderate to high conversion and yield. The reuse of the solid catalyst is governed by their deactivation, poisoning, and the extent of leaching in the reaction medium. The applicability of these catalysts for synthesis of biodiesel along with their reusability aspect is discussed in this review. © 2010 Society of Chemical Industry and John Wiley & Sons, Ltd