高炉炉顶煤气中气体成分和炉尘对常温钙基氯剂脱除HCl的影响（英文）

Influence of blast furnace top gas composition and dust on HCl removal with low temperature Ca-based dechlorination agent

通过研究高炉炉顶煤气的气体成分和炉尘对低温钙基脱氯剂脱除HCl的影响发现:在高炉炉顶煤气中,随着CO_2含量的增加,脱氯效果明显变差;随着CO含量和N_2含量的增加,脱氯环境明显改善;H_2含量的变化对脱氯效果的影响不大;当炉尘含量处在较低范围时(<15 g/m^3),炉尘含量的增加使脱氯效果得到大幅度改善;而当炉尘含量超过一定量(>20 g/m^3)后再提高炉尘的含量时,脱氯效果则明显恶化,在含尘量为15~20 g/m^3时脱氯效果最佳,脱氯剂的最佳工作位置为重力除尘器之后与布袋除尘器之前。

Using fixed-bed reaction method and changing the gas composition and dust content,the influence of blast furnace top gas composition and dust on HCl removal with low temperature Ca-based antichlor was studied.It was found that,when the content of CO2 in blast furnace top gas increased,the dechlorination efficiency was getting worse obviously;when the contents of CO and N2 increased,the dechlorination efficiency was getting better to a certain extent;when the content of H2 changed,the dechlorination efficiency got no significant change;as the content of dust increased,the dechlorination efficiency got better obviously when the content was less than 15 g/m3,but it would be got worse quickly when the content was more than 20 g/m3,and the best content was 15–20 g/m3;the suitable site of the process of dechlorination was after gravity dust collector and before bag dust collector.