云铜公司硫酸四系统简介

Introduction to Yunnan Copper's No.4 sulphuric acid plant

介绍 15 0kt/a冶炼烟气制酸装置的工艺流程、主要设备及生产运行情况。装置采用ⅤⅣⅠ—ⅢⅡ“3+2”5段转化工艺 ,在烟气 φ(SO2 )大于 5 %的情况下可以维持自热平衡 ,转化率达 99 2 %。烟气二氧化硫浓度偏低时采用一转一吸工艺 ,转化率达 98 7%。

The process, main equipment and operation of Yunan Copper's No 4 sulphuric acid plant are described The plant adopts a technology of ⅤⅣⅠ-ⅢⅡ'3+2' When the off gas contains a SO 2 concentration of >5vol%, the plant can operate auto thermally with a SO 2 conversion of 99 2% At the lower concentration, the plant is switched to single absorption configureation with a SO 2 conversion of 98 7%