Study on Effect Factors for CO2 Hydrate Rapid Formation in a Water-Spraying Apparatus
Study on Effect Factors for CO2 Hydrate Rapid Formation in a Water-Spraying Apparatus
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DOI：
10.1021/ef100417y
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发表时间：
2010-07
期刊：
影响因子：
5.3
通讯作者：
Gang Li;Daoping Liu;Yingming Xie;Yang Xiao
中科院分区：
文献类型：
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作者：
Gang Li;Daoping Liu;Yingming Xie;Yang Xiao
为研究CO2水合物快速生成的影响因素，以减缓全球变暖对CO2的影响，设计了一种可视化喷水式气体水合物生成装置。水合物生成过程中的耗气量（初始压力范围2.1 - 3.5 MPa，初始温度范围1.5 - 3.0 °C），系统分析了不同供气方式、初始压力、水量和喷嘴雾化角度下的诱导时间、摩尔生成速率和1 h内的储气密度;同时，还诱发了地层热。结果表明，振荡供气方式下，由于压力扰动引起的传质驱动力较大，或者在较高的初始压力下，水体积和喷嘴雾化角度较大，水合物生成速率、储气密度和总生成热均大于连续供气方式。一个更大的…
To study effect factors on the rapid formation of CO2 hydrate, which has a high capacity for storage of CO2 to weaken global warming impacts, a specific visual water-spraying gas hydrate formation apparatus was designed. The gas consumption in the process of hydrate formation (in the initial pressure range of 2.1−3.5 MPa and initial temperature range of 1.5−3.0 °C) was observed, and the induction time, mole formation rate, and gas storage density within 1 h had been analyzed systematically under different gas supply modes, initial pressures, water volumes, and nozzle atomizing angles; also, the formation heat had been induced. Results showed that the hydrate formation rate, gas storage density, and total formation heat in the reactor were larger in the condition of the oscillating gas supply mode than continuous for the larger mass-transfer driving force caused by pressure disturbance in the former mode or, in a higher initial pressure, with a larger volume of water and nozzle atomizing angle. A larger vo...