一种低浓度酸性气尾气循环直接氧化处理工艺
本发明提供了一种低浓度酸性气尾气循环直接氧化处理工艺。本发明提供的所述低浓度酸性气尾气循环直接氧化处理工艺能够在不显著增加投资的情况下,将低浓度酸性气中的硫磺回收率提高至97%以上,处理后排出的外排烟气中SO的浓度不高于40mg/Nm,远低于国家规定的SO排放标准,有利于减少低浓度酸性气处理回收硫磺过程中的环境污染以及运行成本。
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