解决甲烷吸附问题是控制瓦斯爆炸的核心，研究了一种由单一表面活性剂体系与不同种类不同浓度的稀土盐进行复配的甲烷吸附剂。将阴离子表面活性剂脂肪醇聚氧乙烯醚硫酸钠(AES)水溶液与5种浓度下的不同可溶性稀土盐复配，利用静态顶空萃取气相色谱分析法测定不同配比的吸附材料吸附甲烷气体的体积分数。甲烷的吸附实验结果表明，稀土盐能够促进AES 溶液增溶甲烷，一定浓度范围内随着稀土盐浓度的增高吸附效果趋于明显，在达到较大峰值后，继续添加则会降低吸附效果，并且对比得到添加不同稀土盐对 AES溶液增溶甲烷的影响。
The core of the control gas explosion is to solve the problem of methane adsorption.A new material technology had been researched to reduce the concentration of gas then prevent the explosion of gas in this pa-per.A surfactant named AES mixed with water was determined as good methane absorbent through quantitative analyzing by gas chromatography and comprehensive analysis of the stability of different absorbents.Adding dif-ferent types of soluble rare earth salts of five kinds of determined concentration into this absorbent,testing the volume fraction of methane in different solutions by using the head space gas chromatography.The experimental results show that the adsorption material had good effect on methane absorption.Meanwhile,the rare earth salts can promote AES solution to improve the solubility methane.And obtain the influence of different rare earth salts on critical micelle concentration of AES solution.
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