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首页> 外文期刊>International journal of green energy >Study of transient behaviour of modified Soxhlet apparatus for extraction of a bio-fuel oil from Crotalaria juncea seed
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Study of transient behaviour of modified Soxhlet apparatus for extraction of a bio-fuel oil from Crotalaria juncea seed

机译：改良索氏提取器从猪屎豆种子中提取生物燃料的瞬时行为研究

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摘要

Extraction of Crotalaria juncea (Sunn hemp) oil from its seeds is important to study because of its proven promising clean fuel characteristics. Soxhlet-based solvent extraction with some modification has been tried to extract the oil. In a fluid-solid mass transfer system, where, solids are present as packed bed, dynamic behavior of bed can be described in terms of concentration of solute in solids/solvent-time profile. Some of the well-known semi-empirical models of adsorption dynamics are modified and applied since leaching of oil is just the reverse of the phenomenon of adsorption in porous media. Modified Bohart-Adams model (non-linear), modified Bed Depth Service Time (BDST) (linear), and modified Thomas model (non-linear forms) are applied. It is found that these models fit to the experimental result reasonably well. Results suggest that higher bed height, with proper shape (annular) of the bed, having a higher solvent velocity will work best. Comparing the error values (SSE, SAE, and ARE) in the four cases, it is very clear that the modified BDST model is the most suitable. In the light of transient study it is established that the modified Soxhlet apparatus with cylindrical and annular beds, performs best while leaching Crotalaria juncea oil from their seeds.
机译：从种子中提取猪屎豆（Sunn大麻）油具有重要的研究意义，因为它具有被证明具有前景的清洁燃料特性。已尝试对基于索氏提取的溶剂进行一些改进以提取油。在固体作为填充床存在的流-固传质系统中，床的动态行为可以用固体中的溶质浓度/溶剂时间曲线来描述。修改和应用了一些著名的吸附动力学半经验模型，因为油的浸出只是多孔介质中吸附现象的逆转。应用改进的Bohart-Adams模型（非线性），改进的床层深度服务时间（BDST）（线性）和改进的Thomas模型（非线性形式）。发现这些模型与实验结果相当吻合。结果表明，较高的床高，适当的床形（环形），较高的溶剂速度将是最好的选择。比较这四种情况下的误差值（SSE，SAE和ARE），很明显，修改后的BDST模型是最合适的。根据瞬态研究，可以确定，改良的具有圆柱形和环形床的索氏提取器在从种子中浸出猪屎豆油的同时表现最佳。

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