摘要
介绍AE&C设计的现代一转一吸加尾气洗涤硫酸工艺,论述该工艺的优点及在最近几个硫磺制酸和废酸再生项目中的应用。与两转两吸工艺相比,该工艺投资较省,SO_2排放量较低,可更快地环保开车,蒸汽产量较高,主鼓风机能耗较低。最近几年,环保压力要求将硫酸装置SO_2排放量降低到小于或等于1.0～1.25磅/短吨,再加上能源价格的上涨,拉动了对一转一吸加尾气洗涤工艺的需求。
The modern AE＆C designed single-absorption-scrubbing process is described and its advantages are illustrated with several recent projects where the process has been installed in sulphur-burning and spent acid regeneration sulphuric acid plants. The process offers lower capital cost, lower SO2 emissions, faster start-ups in compliance, increased steam production and reduced energy consumption （main blower power） in comparison with double absorption. In recent years regulatory pressure to reduce SO2 emissions from sulphuric acid plants to 1.0-1.25 pounds of SO2 per s. ton of acid produced （to about 120 ppm） or less, coupled with the increased value of energy has enhanced the desirability of the single absorption-scrubbing process.
出处
《硫酸工业》
CAS
2008年第4期16-21,共6页
Sulphuric Acid Industry
关键词
硫酸
二氧化硫
洗涤
设计
操作
sulphuric acid
sulphur dioxide
scrubbing, design, operation
