20t/h工业链条锅炉烟气湿法钙基吸收同步脱硫脱硝应用研究  

The Application Study on Simultaneous Desulfurzation and Denitrifcation by Ca-Absorption for 20 t/h Industrial Chain Boiler

作　　者：李宇翔 温超强 黄秀灯 陈俊杰 李泳 郭彪 胡满深 Li Yuxiang Wen Chaoqiang Huang Xiudeng Chen Junjie Li Yong Guo Biao Hu Manshen(Jiangmen Tongli Environmental Protection Technology Co., Ltd., Jiangmen 529100, China)

机构地区：[1]江门市同力环保科技有限公司,广东江门529100

出　　处：《广东化工》2016年第22期67-69,共3页Guangdong Chemical Industry

摘　　要：本文以某积层板生产企业的300万＋600万大卡燃煤导热油锅炉超低排放改造工程为例，重点探讨不同的臭氧投加点、不同的臭氧投加量、不同的循环浆液pH的条件下，考察其NO氧化率，NO2吸收率，出口烟气含氧最和脱硫脱硝效果的变化。结果表明：选择合理的奥氧投加位置，臭氧投加量在3．80-4．00kg／h之间。循环浆液pH在6．0-6．5区间，“臭氧氧化预处理-WLT湿法同步脱硫脱硝”工艺的脱硫率和脱硝率可达到95％和50％以上，达到工艺设计要求，实现了处理后燃煤锅炉烟气排放指标优于燃气锅炉烟气排放限值的目标。Take a case with 300× 10^4＋600× 10^4 kcal/h chain boilers for example, this article focuses on discussing oxidation rate of NO, absorption rate of NOz, oxygen content of outlet flue gas, effect of desulfurization and denitrification by different ozone addition points, different ozone dosage, different circulating slurry pH. The results showed the denitrification efficiency is 95 % and the desulfurization efficiency is 95 % thought selects the reasonable ozone addition points, ozone dosage is within 3.80-4.00 kg/h, circulating slurry pH is between 6.0-6.5. The design requirement can be achieved by ＂O3-oxidation ＋ WLT absorption tower＂, and the coal boiler fuel gas pollutant emission index better than natural gas boiler fuel gas pollutant emission limit after the treatment.

关 键 词：工业链条锅炉 同步脱硫脱硝 应用研究 

分 类 号：X701[环境科学与工程—环境工程]