【作者】 喻健良； 闫兴清； 曹琦； 刘少荣； 陈绍云； 张永春；

【Author】 Yu Jian-liang;Yan Xing-qing;Cao Qi;Liu Shao-rong;Chen Shao-yun;Zhang Yong-chun;School of Chemical Machinery and Safety, Dalian University of Technology;School of Chemical Engineering, Dalian University of Technology;

【机构】 大连理工大学化工机械与安全学院； 大连理工大学化学工程学院；

【摘要】 碳补集与封存技术（Carbon Capture and Storage,简称CCS）是目前国内外公认的降低CO₂排放量、缓解温室效应的最有效技术。在CCS技术产业链中,超临界及密相CO₂在输运管道意外泄漏工况下的安全问题值得关注。建立了长260m的工业规模CO₂长输管道泄漏实验平台,用以开展超临界或密相CO₂在瞬间失压工况下,管内介质的特性参数包括压力、温度、相态等的响应规律,以及管外近场及远场CO₂的扩散规律。研究成果为深入深刻理解CO₂管道输运的风险,完善CO₂输运安全理论提供参考。更多还原

【Abstract】 Carbon Capture and Storage is currently recognized as the most effective technology at home and abroad to reduce the CO₂ emission,and to migrate the greenhouse effect.In the CCS industry chain,the safety problems of supercritical and dense CO₂ under the condition of accidental leakage of transportation pipeline have to be focused.An industrial-scale experimental platform with a length of 260 m for CO₂ pipeline leakage was established to study the responses of the medium characteristic parameters including pressure,temperature and phase state in the supercritical or dense phase CO₂ pipeline under instantaneous depressurization process,as well as the diffusion law of CO₂ in the near and far field outside the pipeline.Results can provide reference for understanding the risk of CO2 transportation,and for improving the theory of CO₂ transport safety.更多还原