中山大学工学院, 广东 广州 510006
收稿日期:2017-08-21修回日期:2017-10-19出版日期:2018-06-22发布日期:2018-06-06通讯作者:郭开华基金资助:国家自然科学基金资助项目Process Characteristics on Replacement of Bulk-methane Hydrates with Liquid Cardon Dioxide
Fengqi ZHANG, Guoxing CHEN, Kaihua GUO*, Aohan DUSchool of Engineering, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
Received:2017-08-21Revised:2017-10-19Online:2018-06-22Published:2018-06-06Supported by:National Science Fund subsidized project摘要/Abstract
摘要： 通过可视化水合物反应装置和影像设备，研究了注入液态CO2分解CH4水合物同时原位生成气体水合物并保持整块水合物结构稳定的完整过程，验证了水合物分解和生成同时进行的第二类原位置换过程的可行性. 通过控制压力实现在CO2?CH4混合水合物四相区(水合物?水?液相?气相)的CH4置换过程，得到富CH4气体产物. 通过分析气相色谱和测定产气量得到CH4产气特性和CO2对CH4水合物的置换率. 结果表明，低压有利于获得较优的置换效果，4.5 MPa下的置换过程较5 MPa时产气量提高14.6%，甲烷水合物置换率提高13.7%.
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张凤琦 陈国兴 郭开华 杜奥涵. 液态二氧化碳置换整形甲烷水合物过程特性[J]. 过程工程学报, 2018, 18(3): 639-645.
Fengqi ZHANG Guoxing CHEN Kaihua GUO Aohan DU. Process Characteristics on Replacement of Bulk-methane Hydrates with Liquid Cardon Dioxide[J]. Chin. J. Process Eng., 2018, 18(3): 639-645.
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