苯、甲苯、二甲苯液体蒸汽在160℃条件下的爆炸上限研究

Upper Limit of Explosion of Liquid Steam of Benzene,Toluene and Xylene at 160℃

介绍了可燃蒸汽爆炸极限测试系统的组成和测试方法。以苯、甲苯、二甲苯等为研究对象,为探究温度对苯、甲苯、二甲苯蒸汽爆炸上限的影响,采用自行设计的爆炸极限测试系统研究了在160℃条件下的爆炸极限。通过理论计算得方式计算了爆炸上限并通过自主设计的蒸汽爆炸极限测试装置实验测定了160℃苯的爆炸上限从8%上升为15.5%,甲苯的爆炸上限从7.1%上升为20%,二甲苯的爆炸上限从7.0%上升为20%,三者按1∶1∶1混合的爆炸上限为15.5%。爆炸指数与爆炸压力成正相关关系。

VOC emissions and treatments are more likely to explode due to the mixing of multiple flammable components.Benzene,toluene,and xylene are common components in VOCs.In order to investigate the effect of temperature on the upper limit of steam explosion of benzene,toluene and xylene,the upper limit of explosion was calculated by theoretical calculation and the upper limit of explosion of 160 ℃ benzene was increased from 8% to 15.5 by the self-designed steam explosion limit tester.%,the upper explosion limit of toluene increased from 7.1% to 20%,the upper explosion limit of xylene increased from 7.0% to 20%,The upper explosion limit of the 1∶1∶1 mixture is 15.5%.