摘要
目前,火力发电是许多国家主要的发电方式,控制SO_2排放是治理烟气中污染物的重要工作。本文介绍了目前电厂有应用业绩的几种镁法脱硫技术,并指出现有镁法脱硫方法的弊端,继而提出未来镁法脱硫的发展方向,即基于氧化镁脱硫剂的干法以及半干法脱硫可能会在未来电厂脱硫中得到较大规模的应用。文章指出脱硫效率低是阻碍干法发展的一大问题,而对脱硫剂改性则是提高干法脱硫效率的根本办法之一,将副产品资源化是降低脱硫成本,弥补吸附剂改性费用的有效方法。针对目前日趋严峻的环保要求,现有电厂污染物治理方法针对性过强,未来,实现多烟气一体化脱除是烟气污染物治理的发展方向,干法脱硫可以为多污染物一体化脱除打下基础。本文旨在为推动氧化镁法脱硫提供参考。
Nowadays,coal-fired power generation is applied widely in most countries,and the SO2 control is important.In this paper,several magnesium methods which have been applied were introduced,and their drawbacks were analyzed.The development direction of magnesium methods were put forward.The dry/semi-dry methods will be used widely in the coal-fired power plants for a generation or more,which might be hindered by the low desulfurization efficiency.According to this,the modified adsorbent is one of fundamental methods.Meanwhile,byproduct reuse can be achieved for the lower cost.The pollution control is aimed at the single pollutant.However,with the severer environmental protection requirement,more and more equipment will be used,which is complicated.So,integrative flue-gas pollutants removal technology will be developed,which based on the dry methods.This paper provides a reference for magnesium desulfurization.
作者
马双忱
别璇
孙尧
陈奎续
朱召平
MA Shuangchen;BIE Xuan;SUN Yao;CHEN Kuixu;ZHU Zhaoping(School of Environmental Science and Engineering,North China Electric Power University,Baoding 071000,Hebei,China;Fujian Longking Environmental Protection Co.,Ltd.,Longyan 364000,Fujian,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2018年第9期3609-3617,共9页
Chemical Industry and Engineering Progress
基金
河北省节能环保与科技治霾专项(18273708D)
华北电力大学中央高校基金(2018QN086)项目
作者简介
第一作者及通讯作者:马双忱(1968—),男,教授,博士,主要从事燃煤烟气污染控制方面的研究。E-mail:msc1225@163.com。
