摘要
邯钢焦化厂煤气脱硫系统采用真空碳酸钾脱硫,真空碳酸钾的脱硫废液COD、硫化物等含量较高,如果经蒸氨后直接进入生物系统,可能会冲击生物水系统,造成排放超标。为此,邯钢焦化厂新上一套脱氰技术(IPE-DCN),实现脱硫废液的高效脱硫脱氰处理。通过该脱硫脱氰的方案在焦化厂半年多来的试运行,取得了良好效果,完全可以直接进生化处理,减少了蒸氨的蒸汽消耗,降低了生产成本。该套工艺运行效果良好,完全达到了指标要求,(氰化物≤100mg/L,硫化物≤20mg/L)。
The gas desulfurization system of the Coking Plant of Handan Iron and Steel Co.,Ltd. uses vacuum potassium carbonate desulfurization. The content of COD and sulfide in desulfurization waste liquid of vacuum potassium carbonate is high. If it enters the biological system directly after steaming ammonia,it may impact the biological water system and cause emissions. Excessive. To this end,the new set of de-cyanide technology (IPE-DCN) in the Coking Plant of Handan Iron and Steel Co.,Ltd.,to achieve high-efficiency desulfurization and de-cyanation treatment of desulfurization waste liquid. Through the trial operation of the desulfurization and de-cyanide in the coking plant for more than half a year,good results have been achieved,and it is completely possible to directly enter the biochemical treatment,reducing the steam consumption of the steamed ammonia and reducing the production cost. The set of process works well and fully meets the requirements of the index (cyanide ≤ 100mg / L,sulfide ≤ 20mg / L).
作者
邵有辉
安占来
尚建芳
Shao Youhui;An Zhanlai;Shang Jianfang(HBIS group Co.,Ltd.,Handan Iron and Steel Coking Plant. Handan 056015,China)
出处
《山东化工》
CAS
2019年第18期248-249,共2页
Shandong Chemical Industry
关键词
真空碳酸钾脱硫废液
脱硫脱氰
生物冲击
vacuum potassium carbonate desulfurization waste liquid
desulfurization
deacetylation
bioshock
