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首页> 外文期刊>Journal of Thermal Analysis and Calorimetry >Effects of inert steam on upper explosion limit for oxygenated hydrocarbons
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Effects of inert steam on upper explosion limit for oxygenated hydrocarbons

机译：惰性蒸汽对含氧烃爆炸上限的影响

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摘要

Explosion limits are crucial information for people who handle/operate flammable vapors or gases. It was reported in our previous studies that there is a theoretical linear relation between the reciprocal of the explosion limits and the reciprocal of the molar fraction of hydrocarbons diluted with inert carbon dioxide or nitrogen. In this work, oxygenated hydrocarbons were inertized by inert steam, and the relation of the upper explosion limit and the extent of the inertization was explored. With the assumption that the adiabatic flame temperatures are the same for all limit mixtures, it was found that the aforementioned linear relation still holds in case the inert gas is of steam and the flammable material is of oxygenated hydrocarbons. Experimental work was carried out in a 20-L-Apparatus at 101 kPa and 423 K to measure the upper explosion limit of methyl alcohol, acetone, and methyl formate diluted with steam, respectively. It was found that experimental results fit the theoretical model very well.
机译：对于处理/操作易燃蒸气或气体的人员，爆炸极限是至关重要的信息。据我们先前的研究报道，爆炸极限的倒数与用惰性二氧化碳或氮气稀释的碳氢化合物的摩尔分数的倒数之间存在理论线性关系。在这项工作中，用惰性蒸汽对含碳氢化合物进行了惰性化处理，并探讨了爆炸上限与惰性化程度之间的关系。假设所有极限混合物的绝热火焰温度都相同，发现在惰性气体为蒸汽且易燃材料为氧化烃的情况下，上述线性关系仍然成立。实验工作在20 L设备中以101 kPa和423 K进行，分别测量了甲醇，丙酮和被水稀释的甲酸甲酯的爆炸上限。发现实验结果非常符合理论模型。

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