基于CFD的活性炭烟气脱硫数值模拟  

Numerical Simulation of Active Carbon Flue Gas Desulfurization by CFD

作　　者：杨忠国[1] 荀海川 都基圣 

机构地区：[1]黑龙江八一农垦大学工程学院,黑龙江大庆163319 [2]大庆市高新热力有限公司,黑龙江大庆163316

出　　处：《河南科技大学学报（自然科学版）》2011年第1期21-24,117,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：黑龙江省自然科学基金项目(E200949)

摘　　要：以移动床作为吸附装置,建立了反应器三维非稳态流动和传热的数学模型,将活性炭对烟气中SO2的吸附作为研究对象,利用CFD软件对移动床内的SO3浓度场、烟气速度场和压力场进行模拟计算,研究了烟气入口速度、烟气入口SO2浓度等因素对脱硫效率的影响。结果表明:反应器入口片脱硫效果明显,出口处脱硫效果减弱。为增大脱硫效果,应增大活性炭下移速度或降低烟气速度。Moving-bed was chosen as adsorption plant,and the reactor mathematical model of 3D unsteady flow and heat-transfer was established.Active carbon absorbing sulfur dioxide was chosen as searching object in this paper.The field of sulfur dioxide concentration in the moving bed,flue gas velocity and pressure were calculated by CFD technology in order to study the desulfurization efficiency affected by some factors such as gas import velocity and gas import sulfur dioxide concentration and so on.The result shows that desulfurization effect at the entrance of reactor is obvious,while it weakens at the exit.To increase the desulfurization efficiency,the going down rate of active carbon should be increased or flue gas velocity reduced.

关 键 词：活性炭 烟气脱硫 移动床 CFD 

分 类 号：TB131[理学—物理]