大孔树脂对过氧化氢热稳定性的影响

Effect of macroporous resin on thermal stability of hydrogen peroxide

基于GB/T 1616—2014《工业过氧化氢》中的稳定度测试方法,考察了过氧化氢在大孔树脂存在条件下的稳定度。利用RSD量热仪做了快速热筛选实验,得到双氧水在树脂存在条件下的热稳定性。利用VSP2量热仪做了绝热模拟实验,模拟了绝热条件下双氧水在树脂床层中的反应失控特征。实验结果显示:树脂对双氧水分解具有催化作用,降低了双氧水的热稳定性,树脂吸附重芳烃以及铁离子等杂质后会进一步降低双氧水的稳定度;在绝热状态下,即使没有外部热源,积存于树脂中的双氧水也发生失控反应,且吸附杂质后的树脂更容易导致失控反应的发生。

Based on the stability test method of national standard GB/T 1616—2014,the thermal stability of hydrogen peroxide with macroporous resin was investigated.The thermal stability of hydrogen peroxide with macroporous resin was obtained by the quick thermal screening experiment using RSD calorimeter.Adiabatic simulation experiments were carried out using VSP2 calorimeter,and the runaway reaction characteristics of hydrogen peroxide in the resin bed were simulated.Results shown that：The resin had a catalytic effect on the decomposition of hydrogen peroxide,which reduced the thermal stability of the hydrogen peroxide,and the influence will be more strongly when there were heavy aromatics and iron ions and other impurities were absorbed in it;Under the adiabatic condition,even in the absence of an external heat source,the runaway reaction of hydrogen peroxide which stored in the resin also occurred,and the resin adsorbed impurities was more likely to result in the runaway reaction.