钠基复配捕消剂捕消氯气的效能研究

Decontamination Efficiency of Chlorine Gas by Na-Based Complex Adsorbents

氯气的突发泄漏事故会对周边环境产生极大危害,为减轻氯气泄漏对环境的影响,可采用捕消剂捕获氯气。分别采用活性炭捕消剂和钠基复配捕消剂对氯气进行捕消,考察了钠基复配捕消剂配比对氯气捕消效能的影响。结果表明,电石渣-氢氧化钠复配捕消剂、氢氧化钙-氢氧化钠复配捕消剂的氯气捕消效能优于活性炭捕消剂;在氢氧化钙∶氢氧化钠=3.0∶1(质量比)的条件下,氢氧化钙-氢氧化钠复配捕消剂平衡吸附3 min和10 min后的氯气吸附率分别高达97.7%和98.8%,且捕消稳定性好。

A sudden leak of chlorine gas will cause great harm to the surrounding environment.In order to reduce the impact of sudden leak of chlorine gas on the environment,chlorine gas is usually captured by adsorbent.We used activated carbon and Na-based complex adsorbents to adsorb chlorine gas,and investigated the effect of the proportion of Na-based complex adsorbents on decontamination efficiency.The results show that the decontamination efficiency of chlorine gas by carbide slag-sodium hydroxide complex adsorbent and calcium hydroxide-sodium hydroxide complex adsorbent are superior to that by activated carbon.When the mass ratio of calcium hydroxide to sodium hydroxide is 3.0∶1,the adsorption rates of chlorine gas by the calcium hydroxide-sodium hydroxide complex adsorbent are as high as 97.7%and 98.8%after adsorption for 3 min and 10 min,respectively,and the decontamination stability of the calcium hydroxide-sodium hydroxide complex adsorbent is good.