超声强化酯交换制备生物柴油的工艺优化

为了获得超声强化酯交换反应制备生物柴油最佳工艺条件，为工业化生产提供借鉴。该文考察了超声功率密度、反应温度、催化剂用量和醇油摩尔比等因素对超声强化 KOH 催化酯交换反应过程的影响，并采用响应曲面分析方法（RSM）优化最佳工艺参数。研究结果表明：超声强化 KOH 催化酯交换反应制备生物柴油最佳工艺条件为：超声功率密度54.7 W/L、反应温度34℃、催化剂用量为大豆油质量的 1.3%、醇油摩尔比6︰1，此条件下酯交换反应甲酯质量分数为 99.68%，经验证试验得实测值为99.56%。RSM优化的试验结果适合于碱催化酯交换反应制备生物柴油工艺，并能够预测不同条件下碱催化酯交换反应中的甲酯质量分数。

Process optimization of biodiesel production through ultrasonic enhanced transesterification

In order to obtain the optimal condition for biodiesel production from ultrasonic enhanced transesterification and provide reference for industrialisation of biodiesel,the effects of density of ultrasonic power,reaction temperature, aomunt of catalyst and molar ratio of methanol to oil on the ultrasonic enhanced transesterification catalyzed by potassium hydroxide were investigated,and the parameters for biodiesel production by using response surface method (RSM) were further optimized.The results showed th...