Research progress of hydrocracking reaction kinetic model

doi:10.16085/j.issn.1000-6613.2016.04.003

Abstract

Abstract: Hydrocracking is a key technology in the refining and petrochemical industry. With the help of reaction kinetics modeling and simulation techniques to understand hydrocracking mechanisms and to guide production, optimize plant operation can bring significant economic benefits could be achieved. This paper focuses on the use of lump method to study the relevant researches on hydrocracking reaction kinetics, including the kinetics models based on lumped by production method classification, discrete lumped and continuous lumped, describes the modeling method and development situation of these three kinds of lumped models, and presents the advantages and disadvantages of corresponding reaction networks. Comparison and analysis of the lumped models will provide a reference for modeling of hydrocracking. The continuous lumped model can take the properties of mixture and reaction pathways as well as changes of cutting schemes into consideration, then realize simulation of the complicated system hydrocracking reactor, and accurately predict distribution and properties of products. Meanwhile, further research direction of hydrocracking reaction kinetics modeling is also pointed out. Combining lump modeling and molecular modeling and developing a comprehensive mixed kinetic model will be a meaningful and challenging work in hydrocracking reactor simulation.

Key words: hydrogenation, reaction, lumped method, kinetics modeling

摘要： 加氢裂化是炼油与石化行业的关键技术,借助反应动力学建模以及软件模拟技术来深入认识加氢裂化反应机理并指导生产,优化装置操作条件,可以给企业带来显著的经济效益.本文主要对利用集总法来模拟加氢裂化反应过程动力学的相关研究进行了综述,包括基于生产方案划分的集总、离散集总以及连续集总建立的反应动力学模型[微软用户1],重点介绍了这三类集总模型的建模思路及发展现状,对不同模型的优缺点和反应网络进行了详细的对比分析,其中连续集总模型能够充分考虑混合物性质、反应途径以及切割方案变化的影响,进而实现对加氢裂化这一复杂体系反应器的模拟,准确预测其产品分布和产品性质.同时,本文还指出未来加氢裂化反应动力学建模深入研究的方向,将集总法建模和分子法建模有效结合,开发出一个全面的混合动力学模型,将是未来加氢裂化反应器模拟中一项很有意义并且具有挑战的工作.

关键词: 加氢, 反应, 集总法, 动力学模型

CLC Number:

TE624

LI Zhonghua,XIAO Wu,RUAN Xuehua, HE Gaohong. Research progress of hydrocracking reaction kinetic model[J]. Chemical Industry and Engineering Progree, 2016, 35(04): 988-994.

李中华, 肖武, 阮雪华, 贺高红. 加氢裂化反应动力学建模研究进展[J]. 化工进展, 2016, 35(04): 988-994.

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