高炉煤气中脱氯剂的活性组分

Active Components of Hydrogen Chloride in Blast Furnace Gas

采用HSC化学热力学软件研究了可能的脱氯剂活性组分CuO、ZnO、Fe2O3、NaHCO3、Ca(OH)2、MgCO3、CaCO3、KOH、Na2CO3等脱除高炉煤气中氯化氢反应的吉布斯自由能,筛选出KOH、CaCO3和Na2CO3可以作为高效脱氯剂的活性组分。在实验室进行了脱氯剂活性组分性能检测,以低温饱和氯容和一次穿透时间作为评价指标,验证并分析了几种脱氯剂活性组分的脱氯性能,并且研究了石油化工行业成熟脱氯剂NJ作为对比。研究表明,Na2CO3和改性后的石灰石B的致密度和反应活性较为适宜,可以作为高炉煤气脱氯剂主要活性组分;石油化工行业的NJ型脱氯剂不适用于高炉煤气氯化氢的脱除。

By the HSC chemistry software,some available active components aimed at consisting of the antichlor including CuO,ZnO,Fe2O3,NaHCO3,Ca（OH）2,MgCO3,CaCO3,KOH,Na2CO3 and so on in blast furnace gas were analyzed in the process of the reaction between the active components and HCl,confirming that KOH,Na2CO3 and CaCO3 may be suitable for the effective antichlor.Evaluation index are low chlorine content and apenetration-time in order to carry out a serious of performance testing on antichlor in the lab in contrast to the NJ antichlor which is maturely applied in oil industry segment.The results show that KOH,Na2CO3 and modified limestone are the active components of antichlor;NJ antichlor can not apply for the removal of hydrogen chloride in blast furnace gas.