回转窑烟气脱硝工艺的应用研究  

Study on the Application of Rotary Kiln Flue Gas Denitration Process

作　　者：周金良 张宇驰 ZHOU Jinliang;ZHANG Yuchi(Yuyuan Ninghai Environmental Technology Co.,Ltd.,Ningbo 315612,China)

机构地区：[1]昱源宁海环保科技股份有限公司,浙江宁波315612

出　　处：《中国资源综合利用》2023年第8期168-172,共5页China Resources Comprehensive Utilization

基　　金：2020年度宁波市“科技创新2025”重大专项“利用垃圾焚烧飞灰协同重金属类污泥制备高性能陶粒关键技术及集成应用示范”(2020Z100)。

摘　　要：垃圾焚烧飞灰是典型的危险废物,产生量大,较难处理。回转窑协同处置飞灰和涉重金属污泥,会产生大量的氮氧化物(NO_(x)),而NO_(x)是主要大气污染物之一。目前,主流脱硝工艺有选择性催化还原法(SCR)、选择性非催化还原法(SNCR)、SNCR-SCR联合法、臭氧氧化法。本文结合主流脱硝工艺的原理、使用条件和特点,分析影响脱硝性能的因素,为脱硝工艺的选用提供技术参考。Incineration fly ash is a typical hazardous waste,which is produced in large quantities and difficult to treat.The collaborative disposal of fly ash and heavy metal sludge in rotary kiln will produce a large amount of nitrogen oxides(NO_(x)),which is one of the main atmospheric pollutants.At present,the mainstream denitration processes include selective catalytic reduction method(SCR),selective non-catalytic reduction method(SNCR),SNCR-SCR combined method and ozone oxidation method.Based on the principles,usage conditions and characteristics of mainstream denitration processes,this paper analyzes the factors that affect denitration performance,providing technical reference for the selection of denitration processes.

关 键 词：回转窑 脱硝工艺 烟气 氮氧化物 

分 类 号：X701.7[环境科学与工程—环境工程]