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首页> 外文期刊>International journal of green energy >BIODIESEL YIELD ASSESSMENT IN CONTINUOUS-FLOW REACTORS USING BATCH REACTOR CONDITIONS
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BIODIESEL YIELD ASSESSMENT IN CONTINUOUS-FLOW REACTORS USING BATCH REACTOR CONDITIONS

机译：间歇式反应器条件下连续流反应器生物柴油得率评估

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摘要

Fatty acid methyl esters derived from renewable sources such as vegetable oils has gained importance nowadays as an alternative fuel for diesel engines. The present study is aimed to produce biodiesel from non-edible oil (Karanja oil of Indian origin) both in batch and continuous reactors. The purpose of the study is the comparison of Karanja biodiesel production with different reactor types under variable reaction characteristics. Therefore, two types of continuous reactors were used: helical tube reactor and reactive distillation (RD) column. Experiments were carried out to obtain suitable operating parameters in batch-and continuous-flow reactors. For batch reactor, suitable operating conditions obtained are: 7:1 methanol-to-oil molar ratio, 0.8% (by weight of oil) catalyst (KOH), 6S°C reaction temperature, and 1-h reaction time, at which the maximum yield obtained is 96%. In continuous helical tube reactor, maximum yield of 92.6% was obtained at 6.6 mL/min of flow rate at the same operating conditions of batch reactor. In continuous RD column, maximum yield of biodiesel 96.6% was obtained at the same operating conditions except methanol-to-oil molar ratio (5:1) because of recycling of methanol into the column. The residence times in the helical tube reactor and RD column were 4 and 8 min, respectively, as compared to 1 h in the batch reactor for almost the same yield.
机译：如今，衍生自植物油等可再生资源的脂肪酸甲酯作为柴油发动机的代用燃料已变得越来越重要。本研究的目的是在间歇式和连续式反应器中从非食用油（印度原产的魔芋油）生产生物柴油。该研究的目的是比较在可变反应特性下不同反应器类型的Karanja生物柴油生产。因此，使用了两种类型的连续反应器：螺旋管反应器和反应蒸馏（RD）塔。进行实验以在间歇流和连续流反应器中获得合适的操作参数。对于间歇式反应器，获得的合适操作条件为：甲醇与油的摩尔比为7：1，催化剂（KOH）的含量为0.8％（按油的重量计），反应温度为6S°C，反应时间为1小时，此时获得的最大产率为96％。在连续螺旋管式反应器中，在间歇反应器的相同操作条件下，以6.6 mL / min的流速获得的最大产率为92.6％。在连续RD色谱柱中，由于甲醇再循环进入色谱柱，在相同的操作条件下，除甲醇与油的摩尔比（5：1）外，生物柴油的最大收率为96.6％。在螺旋管式反应器和RD柱中的停留时间分别为4分钟和8分钟，而在间歇式反应器中的停留时间为1小时，产率几乎相同。

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