气液比对矿井瓦斯水合物生长速率的影响  

Effects of gas-liquid volume ratios on formation rate of mine gas hydrate

作　　者：张保勇[1] 潘长虹[1] 吴强[1] 高霞[1] 

机构地区：[1]黑龙江科技学院安全工程学院,哈尔滨150027

出　　处：《黑龙江科技学院学报》2013年第2期107-111,共5页Journal of Heilongjiang Institute of Science and Technology

基　　金：国家自然科学基金项目(51174264;52700185;51104062);哈尔滨市科技创新人才研究专项资金项目(2008RFQXG111)

摘　　要：为寻求瓦斯水合物快速生成的方法,研究了气液比对瓦斯水合物生长速率的影响。设定初始压力5 MPa、初始温度20℃,在复配溶液(0.1 mol/L四氢呋喃(THF)-0.2 mol/L十二烷基硫酸钠(SDS))体积相同的条件下,通过改变可视化反应釜的体积建立了四种气液比(40、60、80和100)反应体系。根据压力和温度与时间关系曲线和水合物生长速率的计算模型对实验现象与结果进行对比分析。结果表明:气液比的增大加快了气相-液相之间物质传递,提高了瓦斯水合物生长速率。四种气液比反应体系中瓦斯水合物生长速率分别为2.40×10-6、3.10×10-6、3.64×10-6和4.39×10-6 m3/min。Aimed at seeking method for fast formation of gas of the influence of gas-liquid ratio on gas hydrate growth rate kinds of gas-liquid ratio（40, 60, 80 and 100） due to changing hydrate, this paper introduces the study and features the reaction system of four the reactor volume of visualization. The reaction system is conditioned by the same size of compound solution of tetrahydrofuran（THF） with molar concentration of 0.1 mol/L and mixture of sodium dodecyl sulfate（SDS） and with molar concentration of 0.2 mol/L, with the initial pressure of 5 MPa and temperature of 20 ℃. The paper offers a comparative a- nalysis of the experimental phenomena and results depending on the calculation model of relation curve of the pressure and temperature and time and the hydrate growth rate. The results show that an increase in gas-liquid ratio leads to a faster substance transferring between gas and liquid and therefore a higher for- mation rate. The mine gas hydrate formation rate of four different gas-liquid ratios （40,60,80 and 100） are 2.40 ×10^-6,3.10 ×10^-6,3.64 ×10^-6 and 4.39 ×10^-6 m3/min respectively.

关 键 词：瓦斯水合物 气液比 生长速率 物质传递 

分 类 号：TD712[矿业工程—矿井通风与安全]