快速制备粉状活性焦烟气脱硫系统的数值研究  

Numerical study of the flue gas desulfurization system using rapid preparation amorphous powder activated coke as desulfurizer

作　　者：周鑫培 陈伟[1] 何燕[1] ZHOU Xin-pei;CHEN Wei;HE Yan(College of Electromechanical Engineering, Qingdao University of Science & Technology, Qingdao 266061, China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061

出　　处：《山东科学》2021年第5期86-96,共11页Shandong Science

基　　金：国家重点研发计划课题(2017YFB0602901-4)。

摘　　要：基于快速制备粉状活性焦(rapid preparation amorphous powder actirated coke,RAC)的焦化模型和脱硫模型,使用ASPEN Plus软件对RAC的烟气脱硫系统进行数值模拟研究。仿真获得基本设计工况下3个关键气流即锅炉烟气、脱硫后烟气和焦炉再生气的组分,计算并验证了工艺系统的质量守恒、元素守恒和能量守恒。详细计算并讨论超低排放条件下的关键参数对活性焦消耗量、脱硫回收率和持焦量的影响。研究结果为烟气脱硫系统的优化设计提供了理论依据。Numerical simulation of a flue gas desulfurization(FGD)system using rapid preparation amorphous powder activated coke(RAC)as the desulfurizer was conducted using ASPEN Plus.The existing coking model for RAC and the desulfurization model were used in the simulation.For the design conditions,the components of three key gas flows were collected,and the mass conservation and element balance of the proposed system were calculated and confirmed.The mass enthalpy and heat flow distribution were also described in detail to verify the energy conservation.For the ultra-low emission conditions,the effects of key parameters on the C-coal consumption,the recovered sulfur,and coke deposit amount in the fluidized desulfurization bed were calculated and discussed in detail.

关 键 词：烟气脱硫 快速制备 粉状活性焦 回收硫 超低排放 

分 类 号：X77[环境科学与工程—环境工程]