喷雾反应器中二氧化碳水合物的生长实验研究

在喷雾反应器中进行了CO2水合物生成实验，观察了CO2水合物的生长过程，以结晶过饱和度作为生长驱动力研究了CO2水合物的生长特性. 结果表明，CO2水合物的生成量随生长驱动力增加而增加；反应温度越低，CO2水合物的生长量越大. CO2水合物生长速率为0.531~9.53 mmol/s，与静态反应装置中一致，表明喷雾反应器促进CO2水合物快速生长的作用有待进一步提高. CO2水合物储气率较低，为14~24 m3/m3，主要原因是生长驱动力偏小，水合反应不完全.

Experimental Study on Formation of Carbon Dioxide Hydrate in a Water Spraying Reactor

Experiments of CO2 hydrate formation were carried out in a water spraying reactor. The growth process was visually observed and photographed. Crystallization supersaturation was employed as the driving force to investigate the growth characteristics of CO2 hydrate. The results indicate that the amount of generated CO2 hydrate increases with the rising of driving force. The lower the system temperature is, the more the CO2 hydrate forms. The growth rate of CO2 hydrate is 0.531~9.53 mmol/s, which is in accordance with the reported result from static reactor in the literature, implying that the function of water spraying reactor to promote the growth of CO2 hydrate needs to be improved. Due to low driving force and incomplete hydrate formation, the obtained gas storage rate of CO2 hydrate is 14~24 m3/m3.