Abstract: On the basis of studying the hydro-refining unit in a refinery, kinetics model of diesel hydrodesulfurization, was built and modified according to practice. Each parameter was fitted with the Levenberg-Marquardt algorithm and global optimization, and analyzed. The model was verified by real data. The result indicated that the model could predict the sulfur content of diesel product accurately.

摘要： 在对某炼厂加氢精制装置详细研究的基础上，建立了加氢脱硫动力学模型，并根据实际情况对模型进行了修改。通过麦夸特法（Levenberg-Marquardt）+全局优化法拟合出各参数，并进行分析说明。以该炼厂实际数据对模型进行了检验。结果表明，模型能够比较准确的预测产品硫含量。