乙烯裂解炉管内裂解反应的CFD模拟  

CFD Simulation on the Cracking Reactions in Tubular Reactor of Ethylene Cracking Furnace

作　　者：毕文涛[1] 郭英锋[2] 沙莎[2] 闵健[2] 

机构地区：[1]洛阳石油化工工程公司,洛阳471003 [2]北京化工大学,北京100029

出　　处：《天津科技大学学报》2008年第1期49-52,共4页Journal of Tianjin University of Science & Technology

摘　　要：应用计算流体力学(CFD)软件Fluent62.,采用详细化学反应机理模型-涡扩散概念(EDC)模型,对乙烯裂解炉2-1型反应管内主反应进行了三维数值模拟.模拟结果表明,EDC模型可正确求解裂解反应,主要产物收率与工业数据吻合较好;沿反应管轴向油气吸热升温,裂解反应加剧,产物产率逐渐发生变化;沿反应管径向存在明显的流体流速和温度的变化,而产物产率的变化没有流体流速和温度的变化明显.The Eddy Dissipation Concept （ EDC ） model was chosen to simulate the ethylene tubular cracking furnace （ 2- 1 type ） in three dimensions by using Computational Fluid Dynamics （CFD） package Fluent6. 2. The simulation results show that the cracking reactions could be predicted well by the EDC model and the yields of products are in good agreement with the industry data.In the tube axis direction, the temperature rises and cracking reactions intensify so as to the yields changing gradually.And velocity and temperature change obviously in radial direction where the yields change little.

关 键 词：乙烯 裂解炉 涡扩散概念模型 数值模拟 

分 类 号：TQ021[化学工程]