超短接触旋流反应器内颗粒轨迹数值研究  

Numerical Simulation of Particle Track in Quick-contact Cyclone Reactor

作　　者：张玉春[1] 王振波[1] 金有海[1] 马艺[1] 

机构地区：[1]中国石油大学(华东)重质油国家重点实验室,山东青岛266555

出　　处：《石油化工设备》2012年第4期1-5,共5页Petro-Chemical Equipment

基　　金：中国石油大学重质油国家重点实验室开放基金(NO:SKLOP201103008);中国石油大学研究生创新基金(NO:CXZD11-12);中国石油科技创新基金(NO:W1003003)

摘　　要：利用Fluent研究不同粒径、入口位置以及不同气固相速度下的颗粒运动过程及粒子的分布规律,求解过程中采用离散随机轨道模型。结果表明:①颗粒粒径越大,颗粒在进料管内回转往复停留时间较长,同时混合腔内颗粒运动的回转半径也越大,有利于催化剂颗粒的流动扩散,增强气固接触效果。②入口位置对反应器内颗粒的运动规律影响不大。③气固相速度发生变化时,气相速度对颗粒运动过程影响较大。The motion process and distribution regularities of particles about different size, dif-ferent entrance location and different gas-solid velocity were studied with Fluent, and discrete random trajectory model was used during solution procedure. The results show that the larger the particle size is, the longer the time consumed particles enter into mixing cavity from the axial en- trance, the more complex the motion process is, and the more likely to form an upper dust ring.On the other hand, the larger the particle size is, the larger the turning radius of particles in mix- ing cavity is, and it is in favor of catalysts spread, enhancing gas-solid two phase contact effect. The difference of entrance location has little influence on particles motion regularities. Particles are easily carried by gas when entering into the reactor, so gas phase velocity has an effect on par- ticles motion process obviously.

关 键 词：反应器 粒径 入口位置 气固相速度 运动轨迹 

分 类 号：TQ051.1[化学工程] TE969[石油与天然气工程—石油机械设备]