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首页> 外文期刊>Catalysis Today >Efficient simultaneous esterification/transesterification of non-edible Jatropha oil for biodiesel fuel production by template-free synthesized nanoporous titanosilicates
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Efficient simultaneous esterification/transesterification of non-edible Jatropha oil for biodiesel fuel production by template-free synthesized nanoporous titanosilicates

机译：高效同时通过模板合成纳米多孔钛的生物柴油生产的非食用性麻醉剂的酯化/酯交换

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摘要

The biodiesel fuel (BDF) derived from non-edible oils is regarded as the most promising alternative fuel to diesel fuel. In this study, a template-free synthesis was developed to prepare nanoporous titanosilicate materials as cost-effective, highly active and reusable solid acid catalysts to convert non-edible Jatropha oil into high-quality BDF. The synthesis involved the cocondensation of sodium silicate and triethanolamine-stabilized titanium species induced by a rapid drop of solution pH. The prepared materials exhibited high nanoporosity and adequate Lewis acidity and could effectively catalyze the simultaneous esterification/transesterification of Jatropha oil while showing extremely low leaching of silicon. The catalytic activity remained high after repeated use. The high-quality Jatropha BDF prepared under optimum conditions met the specifications of international standards, suggesting that the materials are promising for practical BDF production.
机译：从非食用油中提取的生物柴油（BDF）被认为是最有前途的柴油替代燃料。本研究开发了一种无模板合成方法，以制备纳米多孔钛硅酸盐材料，作为一种经济高效、高活性和可重复使用的固体酸催化剂，将非食用麻疯树油转化为高质量的BDF。该合成涉及水玻璃和三乙醇胺稳定的钛物种在溶液pH值快速下降的情况下的共缩聚。所制备的材料显示出高纳米孔隙率和足够的Lewis酸度，并能有效催化麻疯树油的同时酯化/酯交换，同时显示出极低的硅浸出。重复使用后，催化活性仍然很高。在最佳条件下制备的优质麻疯树BDF符合国际标准的要求，表明该材料在实际生产中具有良好的应用前景。

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