MIP-CGP工艺8集总反应动力学模型

发布时间：2018-04-23 16:27

本文选题：催化裂化 + MIP-CGP　；参考：《华东理工大学》2017年硕士论文

【摘要】：催化裂化是重油轻质化工艺之一,在我国炼厂中有极其重要的地位。围绕汽油降烯烃,我国开发了不少衍生工艺,其中MIP技术是其中应用最广泛的一种。为适应市场对低碳烯烃的需求,在MIP技术的基础上,又发展了既降低汽油烯烃又多产丙烯的MIP-CGP技术。为了给炼厂生产操作优化提供数据支撑,本论文开展了 MIP-CGP工艺反应过程的建模研究。本论文深入分析了催化裂化反应机理、MIP-CGP工艺特点,以九江石化MIP-CGP装置为对象,以实测工业数据为研究基础,建立了 MIP-CGP工艺8集总反应动力学模型。以Matlab为计算平台,运用龙格库塔法计算反应动力学方程组,使用遗传算法估算了 22组反应动力学参数,并对模型进行了验证计算,在验证了预测计算结果与实际测量结果误差在合理范围内的基础上,再进一步对反应温度、剂油比进行了优化预测计算,与原工况的实测数据相比,在优化操作条件下汽油产率升高2.12个百分点。结果表明MIP-CGP工艺8集总反应动力学模型具有良好的可靠性和预测精度,计算结果和产物分布均符合催化裂化的反应规律,可为九江石化炼厂MIP-CGP工艺装置操作优化提供指导。
[Abstract]:Catalytic cracking is one of the heavy oil and light chemical technology, and plays an extremely important role in Chinese refineries. In China, many derivation processes have been developed for reducing olefin in gasoline, among which MIP technology is the most widely used one. In order to meet the demand of low olefins in the market, the MIP-CGP technology, which can reduce olefin in gasoline and produce more propylene, was developed on the basis of MIP technology. In order to provide data support for refinery operation optimization, the modeling of MIP-CGP process reaction process was carried out in this paper. In this paper, the characteristics of MIP-CGP process of FCC reaction mechanism are analyzed in depth. Taking the MIP-CGP plant of Jiujiang Petrochemical Company as an object, and taking the measured industrial data as the research basis, the 8 lumped reaction kinetics model of MIP-CGP process is established. Based on Matlab and Runge-Kutta method, 22 groups of reaction kinetic parameters are estimated by genetic algorithm, and the model is verified and calculated. On the basis of verifying that the error between the predicted calculation result and the actual measurement result is within a reasonable range, the reaction temperature and the ratio of agent to oil are further optimized and forecasted, which is compared with the measured data under the original working condition. Under the optimized operating conditions, the gasoline yield increased by 2.12 percentage points. The results show that the 8 lumped reaction kinetic model of MIP-CGP process has good reliability and prediction accuracy, and the calculated results and product distribution all accord with the reaction law of FCC, which can provide guidance for the operation optimization of MIP-CGP process in Jiujiang Petrochemical Refinery Plant.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE624.41

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