In the present paper, an integrated continuous process of biodiesel manufacturing is proposed using Aspen Plus simulator for different feedstocks. Majority of the reported simulation models in literature are design models for new processes by fixing some level of equipment performance such as the conversion in reactor. Most models assume the feed oil as pure triglycerides or some fatty acids and the biofuel as pure ester. In order to optimize the production of biodiesel, similarity with reality is necessary. For this purpose, this work uses thermophysical property estimation of glycerides, rigorous reaction kinetics, phase equilibrium for separation and purification units, and prediction of essential biodiesel fuel qualities. Detailed operating conditions, equipment designs, and properties of feed and products were obtained. The reactions and parameters kinetics were applied to represent both methanolic and ethanolic transesterification of the biodiesel production. An evaluation of optimal operating conditions (time, temperature, alcohol: oil ratio) for a CSTR reactor was determined. The optimal conversion was achieved at a temperature of 60 °C, 6.00 mol/mol alcohol-oil ratio and 2.0 h residence time when used methanol transesterification reaction as 88.19, 93.77, 89.43, and 89.25%, respectively for sunflower, soybean, palm and macauba oil, on the other hand 86.09, 80.26, 76.54, and 76.39% for transesterification ethanolic. Most of the biodiesel obtained from the simulations presented adequate according to the specifications of the D6751, ANP 45, and EN 14214 standards. Finally, the model proposed can be used for improving operations conditions, new products design and help economic analysis in continuous processes of biodiesel production.

中文翻译：

---

使用Aspen Plus通过多种植物来源模拟和优化生物柴油植物的CSTR反应器

在本文中，提出了使用Aspen Plus模拟器对不同原料进行生物柴油制造的集成连续过程。文献中报道的大多数仿真模型都是通过固定一定水平的设备性能（例如反应堆中的转化率）的新工艺的设计模型。大多数模型都将进料油假定为纯甘油三酸酯或某些脂肪酸，并将生物燃料假定为纯酯。为了优化生物柴油的生产，与现实的相似性是必要的。为此，这项工作使用了甘油酯的热物理性质估计，严格的反应动力学，分离和纯化单元的相平衡以及基本生物柴油燃料质量的预测。获得了详细的操作条件，设备设计以及饲料和产品的性能。应用反应和动力学参数来代表生物柴油生产的甲醇酯交换和乙醇酯交换。确定了CSTR反应器的最佳运行条件（时间，温度，酒精：油比）的评估。当使用甲醇酯交换反应时，向日葵，大豆，棕榈和葵花子的甲醇转化率分别为88.19、93.77、89.43和89.25％，在60°C，6.00 mol / mol醇/油比和2.0 h停留时间的条件下可获得最佳转化率。另一方面，马卡巴油中的86.09％，80.26％，76.54％和76.39％用于乙醇酯交换。根据D6751，ANP 45和EN 14214标准的规范，从模拟中获得的大多数生物柴油都具有足够的生物柴油。最后，提出的模型可用于改善运营条件，