船舶烟气海水脱硫的模拟和设计  

Simulation and design of ship flue gas desulphurization using seawater

作　　者：马义平[1] 许乐平[2] 宿鹏浩[2] 杨开亮[2] 

机构地区：[1]上海海事大学商船学院,上海201306 [2]上海海事大学海洋科学与工程学院,上海201306

出　　处：《上海海事大学学报》2013年第2期41-45,共5页Journal of Shanghai Maritime University

摘　　要：为研究船舶烟气海水脱硫过程中各个参数(烟气温度、SO2分压强、CO2分压强、海水温度、液气比、海水碱度)对脱硫效率和脱硫后海水pH值的影响,运用Aspen Plus V7.2对脱硫过程进行模拟.模拟结果表明:烟气温度和CO2分压强对脱硫效率和脱硫后饱和海水的pH值影响较小;SO2分压强、液气比、海水温度和碱度对脱硫效率和脱硫后饱和海水的pH值影响较大;随着SO2分压强的降低和海水碱度的增加,脱硫效率和脱硫后饱和海水的pH值都增加;随着海水温度的降低和液气比的增加,脱硫效率增加,但脱硫后饱和海水的pH值先减小再增加;脱硫后海水的pH值一般在2.6～3.0之间.对脱硫后海水的实验研究表明,实验结果与模拟结果较吻合.To discover the impacts of some parameters （ such as flue gas temperature, partial pressure of S02, partial pressure of C02, seawater temperature, liquid-gas ratio and alkalinity of seawater） on desulphurization efficiency and the pH of effluent seawater during the process of ship flue gas desulphurization using seawater, Aspen Plus V7.2 is used to simulate the desulphurization process. The simulation results show： the flue gas temperature and the partial pressure of CO2 have less impact on desulphurization efficiency and pH of effluent seawater; the partial pressure of SO2, liquid-gas ratio, seawater temperature and the alkalinity of seawater have great influences on both desulphurization efficiency and pH of effluent seawater; with the decreasing partial pressure of SO2 and the increasing seawater alkalinity, both desul- phurization efficiency and pH of effluent seawater increase; while with the decreasing seawater tempera- ture and the increasing liquid gas ratio, desulphurization efficiency increases, but the pH of effluent sea- water decreases firstly and then increases. The pH of effluent seawater is generally 2.6 - 3.0. Seawater desulphurization experiment shows that the experimental results are in agreement with the above simulation results.

关 键 词：SO2 海水 脱硫效率 PH值 

分 类 号：U664.9[交通运输工程—船舶及航道工程] X701.3[交通运输工程—船舶与海洋工程]