为了研究多孔介质中CO2水合物的生成速率和储气量,利用1.8 L的水合反应釜研究了孔隙为13.8 nm和26.7nm的石英砂中CO_2水合物的生成过程,结果表明：孔径为26.7 nm石英砂中,1 m~3的石英砂可以储存64.4 m~3标准状况的二氧化碳气体,平均生成速率为0.001703 mol/min;孔径为13.8 nm石英砂中,1 m~3的石英砂可以储存118.8m~3标准状况的二氧化碳气体,平均生成速率为0.001803 mol/min;在多孔介质孔径范围为13.8 nm至26.7 nm之间时,粒径越小,储气量越大。
In order to study the formation rate and storage capability of CO_2 gas hydrate in porous media,the formation process of CO_2 gas hydrate has been investigated in a 1.8 L cell with quartz sands of 13.8 nm or 26.7 nm pore size.The results show that,under standard conditions,CC_2storage capacities of 1 m3 quartz sands of 26.7 nm or 13.8 nm are 64 m~3 and 118.8 m~3 respectively and the average formation rates are 0.001703 mol/min and 0.001803 mol/min accordingly and CO_2 storage capability gets bigger with the decease of the pore size of quartz sands.
参考文献
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