朱国承;曹琦;王萌;喻健良;闫兴清;于帅;刘长远;

• 1:西安长庆科技工程有限责任公司
• 2:大连理工大学化工学院

摘要(Abstract)：

压力管道是CO_2捕集、封存和利用(Carbon Capture Utilization and Storage简称CCUS)技术中CO_2运输最经济、最安全的方式之一。然而管道失效、CO_2泄漏会导致人畜窒息、冻伤、农作物损害等严重后果。而目前缺乏对大规模CO_2管道泄漏特性的研究，如泄漏后浓度、温度分布规律等还是未知，因此研究CO_2泄漏扩散特性极为重要。为开展相关研究，利用长258 m、内径为233 mm的工业规模CO_2试验管道开展泄漏试验。泄漏口径分别为全口径(233 mm)、100 mm、50 mm和15 mm。在泄漏区域布置温度传感器和浓度传感器，并且在试验前根据不同泄漏口径调整浓度传感器的位置。开展4组超临界CO_2泄漏试验，得到了泄漏区域内温度、体积分数随时间的变化规律。根据试验结果拟合得出了泄漏口径与危险距离的关系。以体积分数为5%作为危险值，划定了不同口径泄漏时CO_2的危险范围。

关键词(KeyWords)： 安全工程;超临界CO_2;泄漏扩散;CO_2体积分数;温度分布

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 朱国承;曹琦;王萌;喻健良;闫兴清;于帅;刘长远;

DOI: 10.13637/j.issn.1009-6094.2020.1825

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