劣质油加氢反应动力学的研究

发布时间：2018-02-28 00:52

本文关键词： 劣质油集总动力学模型加氢过程　出处：《青岛科技大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着原油资源的日渐枯竭和原油劣质化、重质化趋势明显,加氢提质成为最终的手段。在提质过程,反应动力学的研究对装置操作条件的优化、实验的设计、反应器的设计和放大等方面具有十分重要的指导意义。本论文针对劣质油加氢反应过程,采用集总的方法建立了加氢反应动力学,同时针对劣质油加氢提质过程中脱硫脱氮反应、催化剂失活、氢耗的估算和操作条件的预测等方面进行了研究,结合企业数据,形成了加氢过程的软件,具体结果如下:(1)针对劣质油中含硫化合物和含氮化合物加氢反应机理及实验结果分析,基于加氢脱除的难易程度不同,分别将含硫化合物和含氮化合物划分为三个集总,建立了动力学模型,并借助MATLAB软件编程得到模型参数。该模型考察了温度、压力、氢油比和空速对加氢精制的影响,通过模型预测值与实验数据进行对比,结果表明模型的预测值与实验值之间的平均相对误差小于5%。(2)基于劣质油加氢提质过程的研究,收集了930小时的煤焦油加氢装置实测数据,建立了催化剂失活模型。结果证明,失活动力学模型可以有效描述催化剂失活过程,对催化剂使用寿命也可以实现预测。(3)利用C#语言开发了劣质油加氢动力学模拟软件,通过软件可实现对加氢产品质量、化学氢耗、催化剂活性及操作条件等方面的预测。
[Abstract]:With the increasing depletion of crude oil resources and the deterioration of crude oil, the trend of heavy quality is obvious, and hydrogenation is the final means. In the process of refining, the study of reaction kinetics optimizes the operating conditions and the design of experiments. The design and amplification of the reactor have important guiding significance. In this paper, the kinetics of hydrogenation reaction was established by lumped method for the hydrogenation process of inferior oil. At the same time, the desulfurization and denitrification reaction, the deactivation of catalyst, the estimation of hydrogen consumption and the prediction of operating conditions in the process of hydrogenation of inferior oil were studied. The software of the hydrogenation process was formed based on the enterprise data. The specific results are as follows: (1) based on the analysis of the hydrogenation mechanism and experimental results of sulfur-containing compounds and nitrogen-containing compounds in inferior oils, the sulfur-containing compounds and nitrogen-containing compounds are divided into three lumps based on the different degree of difficulty of hydrogenation and removal. The kinetic model was established, and the model parameters were obtained by MATLAB software. The effects of temperature, pressure, hydrogen / oil ratio and space velocity on hydrofining were investigated, and the predicted values were compared with experimental data. The results show that the average relative error between the predicted value of the model and the experimental value is less than 5. 2) based on the study of the hydrotreating process of inferior oil, 930 hours of measured data of coal tar hydrogenation unit have been collected, and a catalyst deactivation model has been established. The deactivation kinetic model can effectively describe the deactivation process of the catalyst, and predict the catalyst service life. (3) A simulation software for hydrogenation kinetics of inferior oil is developed by using C # language, and the quality of hydrogenation products can be realized by the software. Chemical hydrogen consumption, catalyst activity and operating conditions are predicted.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE624

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