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首页> 外文期刊>International Journal of Technology >Optimization of Biodiesel Production using a Stirred Packed-bed Reactor
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Optimization of Biodiesel Production using a Stirred Packed-bed Reactor

机译：使用搅拌填充床反应器优化生物柴油生产

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The use of waste cooking oil (WCO) as feedstock and in microwave heating technology helps to reduce the cost of biodiesel. In this study, a continuous flow transesterification of waste cooking oil (WCO) by microwave irradiation for biodiesel production using calcium oxide (CaO) as aheterogeneous catalyst, calcined from cockle shells, is used. The catalyst was packed inside a plastic perforated container mounted on a stirrer shaft and inserted inside the reactor. The thermocouple inside the reactor was connected to a temperature controller and microwave power input to maintain the temperature. Response surface methodology (RSM) was employed to study the relationships between power input, stirrer speed and liquid hourly space velocity (LHSV) on the WCO methyl ester (WCOME) conversion at a fixed molar ratio of methanol to oil of 9 and a reaction temperature set at 65oC. The experiments were developed using the Box-Behnken design (BBD) for optimum conditions. The transesterification of the WCO was produced at 72.5% maximum WCOME conversion at an optimum power input of 445 W, stirrer speed of 380 rpm and LHSV of 71.5 h-1. The energy consumption in a steady state condition was 0.594 kWh for the production of 1 litre WCOME, for this heterogeneous catalyst is much faster than conventional heating.
机译：废食用油（WCO）作为原料和微波加热技术的使用有助于降低生物柴油的成本。在这项研究中，使用微波辐射对废烹饪油（WCO）进行连续流酯交换，以使用氧化钙（CaO）作为非均相催化剂，从鸟蛤壳中煅烧生产生物柴油。将催化剂装在安装在搅拌器轴上的塑料多孔容器内，并插入反应器内。反应器内部的热电偶连接到温度控制器和微波功率输入以保持温度。在甲醇与油的摩尔比固定为9和反应温度下，采用响应面方法（RSM）研究功率输入，搅拌器速度和液时空速（LHSV）对WCO甲酯（WCOME）转化的影响设定为65oC。实验是使用Box-Behnken设计（BBD）为最佳条件而开发的。在最佳输入功率445 W，搅拌器速度380 rpm和LHSV为71.5 h-1的情况下，WCO的酯交换反应产生的最大WCOME转化率为72.5％。对于生产1升WCOME，稳态条件下的能耗为0.594 kWh，因为这种非均相催化剂比常规加热要快得多。

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