This study aimed to evaluate the kinetic behavior of cottonseed oil transesterification with ethanol based on a pseudo first order kinetic model. A 2³ factorial planning with three central points was performed by considering temperature, catalyst concentration and alcohol/oil molar ratio as dependent variables and biodiesel concentration as response signal. It was observed that the highest conversion was obtained for the following conditions: temperature between 50 and 70 °C, high alcohol/oil molar ratio and low percentage of catalyst. All samples were collected during time intervals of 5–10–15–30–60 and 90 min. A set of kinetic constant values were obtained for each operating condition ranging from 72 to 23l min⁻¹. Indeed, it was possible to obtain the kinetic parameters frequency factor k₀ = 5807.05 dm³*mol⁻¹*min⁻¹ and E_a = 16.84 kJ*mol⁻¹ for biodiesel production with ethanol.

这项研究旨在评估基于伪一级动力学模型的棉籽油与乙醇的酯交换反应的动力学行为。通过将温度，催化剂浓度和醇/油摩尔比作为因变量，并将生物柴油浓度作为响应信号，执行具有三个中心点的2 ³因子规划。观察到在以下条件下获得最高的转化率：温度在50至70℃之间，高的醇/油摩尔比和低的催化剂百分数。在5–10–15–30–60和90分钟的时间间隔内收集所有样本。对于72至23l min ^-1的每个操作条件，获得了一组动力学常数值。实际上，对于用乙醇生产生物柴油，可以获得动力学参数频率因子k ₀  = 5807.05 dm ³ * mol ^-1 * min ^-1 和E _a  = 16.84 kJ * mol ^-1。