甲烷在表面活性剂水溶液中溶解度的实验研究  

Experimental test of methane solubility in surfactant aqueous solution

作　　者：杨永良[1] 李增华[1] 侯世松[1] 孙留涛[1] 刘震[1] 唐一博[1] 

机构地区：[1]中国矿业大学安全工程学院,煤炭瓦斯与火灾防治教育部重点实验室,煤炭资源与安全开采国家重点实验室,江苏徐州221116

出　　处：《采矿与安全工程学报》2013年第2期302-306,共5页Journal of Mining & Safety Engineering

基　　金：国家重点基础研究发展计划(973)项目(2011CB201200);中国矿业大学青年科研基金项目(2009A006)

摘　　要：在进行煤层注水或巷道喷雾时,若改变水溶液性质使之能够吸收甲烷,则可有效降低煤层瓦斯含量,实现煤层消突。研制加工了瓦斯溶解实验装置,选择增溶能力较强的不同类型表面活性剂,进行了不同温度、体积分数和压力条件下的甲烷溶解实验测试。结果表明,甲烷溶解度均随体积分数的增大呈对数增大,随温度的升高呈逆指数降低,随压力的升高呈对数增加;加入聚丙二醇甲烷溶解度最大,常温常压下,体积分数为10%的溶解度为24.66 mL/100 mL溶液,是纯水的7.45倍,4种表面活性剂增溶能力的顺序为:聚丙二醇>聚乙烯醇>十二烷基硫酸钠>F-500。根据实验结果建立了不同条件下甲烷溶解度的计算方程,估算值和实验值吻合较好,为矿井水力化措施提高瓦斯治理效果提供了依据。During the process of coal seam water infusion or roadway spray,if the aqueous solution is modified so that it can absorb mathane gas well,the gas content of coal seam will be effectively reduced,and the outburst danger of coal seam may be eliminated.In this paper,the experimental device for methane dissolution was developed and processed,and the methane dissolution experiments under different temperatures,concentrations and pressures were conducted by selecting different surfactants with stong solubilization capacities.The results show that the methane solubility increases mainly in logarithmic way with the growth of gas concentration and gas pressure,and decreases exponentially with the increase of temperature.In addition,the solubility data of polypropylene glycol（PG） is largest among the four kinds of surfactants.The data can reach to 24.66 mL/100 mL in 10% PGM solution at normal temperature and pressure,which is 7.45 times to the pure water.In conclusion,the order of solubilization capacities among the four types of surfactants is： PG Polyvinyl THF F-500.According to the experimental results,the calculation equation of methane solubility under different conditions was established,and the estimated values agree well with the experimental values.The results can provide reference to improve the effects of gas control by using hydrodynamic hydraulic measures in coal mines.

关 键 词：甲烷 溶解度 表面活性剂 水力化措施 

分 类 号：TD75[矿业工程—矿井通风与安全]