干水固化甲烷过程及反应特性研究

利用天然气水合物合成实验系统,采用5%纳米SiO2与纯净水配制的干水和纯甲烷为原料,获得了水合物生成过程中温度、压力、反应速率以及最终的储气密度之间的关系。通过以温度和压力值作为变量进行实验结果表明：在高压条件下,反应温度接近0℃,反应的速率较快,生成的水合物中甲烷含量也较高。在低温条件下,压力接近8 MPa时,干水固化甲烷效果较好。

Study on Process and Characteristics of Dry Water Solidifying Methane

The hydrate production process relationship among the temperature,the pressure,the reaction rate as well as the final gas storage density was obtained with dry water which was prepared by 5% of nanometer SiO2 and 95% of water and the pure methane as a raw material in the natural gas hydrate experiment system.The experiment was successively carried on by the temperature and the value of pressure as the variable.And the results indicated that the reaction rate was faster and the density of methane gas in the NGH was higher with the reaction temperature close to 0 ℃ under the high-pressured condition.While,gas storage quality was better when pressure approached 8 MPa at low temperatures.