CAJ | 학술논문

本文研究和模拟循环流化床烟气脱硫的流程和模型.以微元分析SO2的传质为基础,建立循环流化床烟气脱硫的数学模型,模型用双膜理论分析脱硫反应对SO2传质过程的增强影响,并采用惯性碰撞理论解释浆滴的形成过程.借助Aspen Plus过程模拟平台,用FORTRAN语言编写基于该模型的用户单元模块,模拟循环流化床烟气脱硫工艺,分析Ca/S、增湿水量、塔内颗粒物浓度、水滴粒径等参数对脱硫的影响,模拟计算结果和实验数据的对比显示模型能如实反映实际的趋势.本文为应用循环流化床烟气脱硫技术提供参考.
본문연구화모의순배류화상연기탈류적류정화모형.이미원분석SO2적전질위기출,건립순배류화상연기탈류적수학모형,모형용쌍막이론분석탈류반응대SO2전질과정적증강영향,병채용관성팽당이론해석장적적형성과정.차조Aspen Plus과정모의평태,용FORTRAN어언편사기우해모형적용호단원모괴,모의순배류화상연기탈류공예,분석Ca/S、증습수량、탑내과립물농도、수적립경등삼수대탈류적영향,모의계산결과화실험수거적대비현시모형능여실반영실제적추세.본문위응용순배류화상연기탈류기술제공삼고.
Model study and flow simulation of circulating fluidized bed flue gas desulfurization (CFB-FGD) were described in this pa-per. The mathematic model of flue gas desulfurization for circulating fluidized bed (CFB) was buih on the basis of element analysis for mass transfer of SO2. The enhancement of the desulfurization reaction in the process of mass transfer of SO2 was analyzed with the doub-le-membrane theory in the model. And the real formation process of slurry droplet was accounted with the theory of inertia collision. And then a simulation study of CFB-FGD was conducted based on Aspen Plus, where a module subroutine was programmed in FOR-TRAN based on this model. The influences of the key parameters such as calcium-to-sulfur ration (Ca/S), flux of spay water, concen-tration of sorbent particles and water drop size on the desulfurization efficiency were analyzed. The modeling results were compared with the experimental data and the comparing results showed that this model could preferably predict the real trends, This paper would help the application of CFB-FGD as references.