上流式反应器气-液-固三相床层气含率模型研究  

MODELING FOR GAS HOLDUP IN A GAS-LIQUID-SOLID COCURRENT UP-FLOW FIXED BED REACTOR

作　　者：袁胜华 李安琪 王志武 郑进保[2] 伊晓东[2] 方维平[2] 赖伟坤 Yuan Shenghua;Li Anqi;Wang Zhiwu;Zheng Jinbao;Yi Xiaodong;Fang Weiping;Lai Weikun(SINOPEC(Dalian)Research Institute of Petroleum and Petrochemicals Co.,Ltd.,Dalian,Liaoning 116041;National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,College of Chemistry and Chemical Engineering,Xiamen University)

机构地区：[1]中石化(大连)石油化工研究院有限公司,辽宁大连116041 [2]厦门大学化学化工学院醇醚酯化工清洁生产国家工程实验室

出　　处：《石油炼制与化工》2023年第3期66-74,共9页Petroleum Processing and Petrochemicals

基　　金：国家自然科学基金资助项目(22172122,22172126,22172124,21773194);中国石油化工股份有限公司合同项目(121044);广西省科技厅资助项目(AD17195067)。

摘　　要：从热力学基本定律——熵增定律和能量最低定律出发,考虑系统宏观动能、势能及内能的转化,通过对系统各种能量的表达,建立上流式反应器气-液-固三相床层气含率与系统条件(如流体流速、黏度、催化剂物性)的定量关系。在热力学定律基础上,提出相关物理量“变动级数”的概念,结合不同操作条件和不同催化剂装填方案的冷模试验,研究流体及催化剂物性对床层气含率的影响规律。采用所建立的气含率模型拟合各种操作条件及多种催化剂装填方案下的试验数据,拟合平均相对偏差均小于5%,参数合理且能反映气、液、固三相性质对床层气含率的影响规律。建立一个优良的模型来描述上流式反应器气-液-固三相床层气含率,对上流式加氢工艺的研究具有重要指导意义。Based on the basic law of thermodynamics,the law of the entropy increase and the law of minimum energy,the transformation of macroscopic kinetic energy,potential energy,and internal energy of a system was considered,and the quantitative relationship between gas holdup of up-flow gas-liquid-solid three-phase bed and system conditions such as fluid velocity,viscosity and catalyst physical properties was established.On the basis of universal laws of thermodynamics,the concept of“variation order”of related physical quantity was proposed,cold model tests were carried out under different operating conditions and different catalyst loading schemes,and the effects of physical properties of fluid and catalyst on gas holdup was systematically studied.The established gas holdup model was used to fit the experimental data under various conditions and various catalysts loading schemes.The average relative deviation of the model was less than 5%,the parameters were reasonable and could well reflect the effects of gas-liquid-solid properties on gas holdup.The establishment of an excellent model to describe gas holdup in a gas-liquid-solid three-phase up-flow fixed bed reactor is of great significance to the study of up-flow hydrogenation process.

关 键 词：气含率 上流式反应器 变动级数 模型 气液固性质 

分 类 号：TE624[石油与天然气工程—油气加工工程]