Trickle-bed reactor (TBR) modelling to produce green fuel via hydrocracking of jatropha oil using silica-alumina-supported Ni-W catalysts was performed in this research. The objectives of this study are to obtain a TBR with good heat transfer and the optimum condition for high purities of products. A two-dimensional axisymmetric model with a diameter of 0.1 m and a length of 10 m was used as a representative of the actual TBR system. Heterogeneous phenomenological models were developed considering mass, energy, and momentum transfers. The optimisation was conducted to obtain the highest green fuel purity by varying catalyst particle diameter, inlet gas velocity, feed molar ratio, and inlet temperature. The simulation shows that a TBR with an aspect ratio of 100 has achieved a good heat transfer. The diesel purity reaches 44.22% at 420°C, kerosene purity reaches 21.39% at 500°C, and naphtha purity reaches 25.30% at 500°C. The optimum condition is reached at the catalyst diameter of 1 mm, the inlet gas velocity of 1 cm/s, the feed molar ratio of 105.5, and the inlet temperature at 500°C with the green fuel purity of 69.4%.

中文翻译：

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麻风树油在滴流床反应器中加氢裂化生产绿色燃料的模拟

在这项研究中，进行了滴流床反应器 (TBR) 建模，以通过使用二氧化硅-氧化铝负载的 Ni-W 催化剂对麻风树油进行加氢裂化来生产绿色燃料。本研究的目的是获得具有良好传热和高纯度产品最佳条件的 TBR。以直径为0.1 m、长度为10 m的二维轴对称模型作为实际TBR系统的代表。考虑到质量、能量和动量传递，开发了异构现象学模型。通过改变催化剂粒径、入口气体速度、进料摩尔比和入口温度，进行优化以获得最高的绿色燃料纯度。仿真表明，纵横比为 100 的 TBR 实现了良好的传热。420℃时柴油纯度达到44.22%，煤油纯度在500°C时达到21.39%，石脑油在500°C时纯度达到25.30%。最佳条件为催化剂直径为1 mm，入口气速为1 cm/s，进料摩尔比为105.5，入口温度为500℃，绿色燃料纯度为69.4%。