A double contact double absorption metallurgical acid plant is installed in the green upgrading of a smeltering company to treat various flue ga-ses containing SO2 generated during the production process.The design scheme,process flow and characteristics,key equipment and specifications of the unit are presented.The operation practice of the acid plant show that all process parameters have met the design specifications,the total conversion rate is over 99.85%,and the tail gas emission satisfies the code requirements,indicating that the acid technology is advanced and reliable,with good environ-mental and social benefits.
关键词
硫酸生产/高浓度烟气/改造方案/生产实践
Key words
sulfuric acid production/high-strength flue gas/upgrade scheme/operation practice