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A green approach for the production of biodiesel from fatty acids of corn deodorizer distillate

机译：从玉米除臭剂馏出物中的脂肪酸生产生物柴油的绿色方法

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A novel alginic acid derived tin catalyst, tin alginate (Sn-Alg), was successfully synthesized, characterized and applied for methyl esterification. Initially, the amount of catalyst, methanol to fatty acid ratio and reaction time were optimized using an oleic acid standard for esterification. The optimal reaction conditions were found to be 4% catalyst, 1 : 12 oleic acid to methanol mole ratio and 2 h reaction time with 98.7% fatty acid methyl ester recovery. The capability of Sn-Alg beads to esterify the fatty acids of corn deodorizer distillate was evaluated. High recovery (97.6%) of esters was obtained after 8 cycles using reprocessed catalyst under the optimized parameters. The results of the present study indicated that based on the environmental pollution, reusability, avoiding the use of potassium or sodium hydroxides or sulphuric or phosphoric acids, and ease of catalyst separation, the solid Sn-Alg catalyst has a great potential for biodiesel production from highly free fatty acid deodorizer distillates.
机译：成功合成，表征了一种新型的藻酸衍生锡催化剂海藻酸锡（Sn-Alg）并将其用于甲基酯化反应。最初，使用油酸标准物进行酯化来优化催化剂的量，甲醇与脂肪酸的比例和反应时间。发现最佳反应条件为4％的催化剂，1：12的油酸与甲醇的摩尔比和2小时的反应时间，回收率为98.7％的脂肪酸​​甲酯。评价了Sn-Alg珠粒使玉米除臭剂馏出物的脂肪酸酯化的能力。在优化的参数下，使用经过重新处理的催化剂经过8个循环后，酯的回收率高达97.6％。本研究结果表明，基于对环境的污染，可重复使用，避免使用氢氧化钾或氢氧化钠或硫酸或磷酸，以及易于催化剂分离，固态Sn-Alg催化剂具有很大的生产生物柴油的潜力。高游离脂肪酸除臭剂馏出物。

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