硫酸尾气氨洗法工业化技术开发  

Industrialization of Ammonia Wash Technology for Sulfuric Acid Tailgas

作　　者：杨正毅 吴有丽 项双龙 

机构地区：[1]贵阳开磷化肥有限公司,贵州贵阳551109 [2]贵州开磷息烽合成氨有限责任公司,贵州贵阳551109

出　　处：《硫磷设计与粉体工程》2017年第3期17-19,共3页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：硫酸尾气氨洗法技术即在氨洗塔的吸收段采用氨水吸收硫酸尾气中的SO_2,该技术应用在600 kt/a和800 kt/a硫酸装置上可减排SO_2量为2 596.81 t/a,副产硫酸铵溶液量为5 360 t/a[折100%(NH_4)_2SO_4计],且硫酸尾气中SO_2浓度大大低于国家排放标准要求的限值400 mg/m^3。该技术投资费用和运行成本较低,吨酸增加运行费用仅为4.04元。The ammonia wash technology for sulfuric acid tailgas uses ammonia in the absorption stage of the ammonia wash tower to absorb SO_2 in the sulfuric acid tailgas. By using this technology,SO_2 emission reduction of 2 596.81 t/a can be achieved in the 600 kt/a and 800 kt/a sulfuric acid plant,the by-product ammonium sulfate solution is 5 360 t/a[as 100%( NH_4)_2SO_4]. The SO_2 in the sulfuric acid tailgas is far lower than the limit of 400 mg/m^3 stipulated in the national emission standard. The technology comes with low capital invest and operating cost,additional operating cost per ton acid is only 4.04 RMB.

关 键 词：硫酸尾气 二氧化硫减排 氨洗法 硫酸铵 

分 类 号：X781.3[环境科学与工程—环境工程]