Experimental Investigation of the Characteristics of Supercritical CO2 during the Venting Process
Experimental Investigation of the Characteristics of Supercritical CO2 during the Venting Process
复制标题
超临界CO2放空过程特性的实验研究
DOI：
10.1016/j.ijggc.2021.103424
复制
发表时间：
2021-09
影响因子：
3.9
通讯作者：
Xiaolu Guo
中科院分区：
文献类型：
--
作者：
Qi Cao;Xingqing Yan;Shuai Yu;Jianliang Yu;Shaoyun Chen;Yongchun Zhang;Xiaolu Guo
碳捕获利用和封存(CCUS)是最有潜力降低大气中二氧化碳含量的技术，它是全球变暖的主要贡献者，可能导致大量的环境问题。二氧化碳的运输是CCUS链条上最重要的节点，管道是一种经济高效的运输方式。在CO2管道建设过程中，应设置一定量的排气装置，防止主管道超压，便于主管道检修。因此，在排气过程中，为了维护排气管和干管的安全，有必要了解排气过程中排气管内CO2的特性。在这项研究中，两根2米长的排气管由阀门连接，并安装在一条工业规模的管道上。用两种不同的阀门开度进行了两组排气实验。工业规模的实验装置被用来获得关键的数据，并使结果更接近实际的工业设置。在实验过程中，测量了CO2的温度和压力的演化。基于压力和温度数据，比较了两个实验中CO2相变的差异。在实验过程中，管道内没有产生干冰。其中一组实验产生了节流效应，而另一组实验则没有。此外，还讨论了焦耳-汤姆逊系数的演变趋势。在整个排气过程中，得到了管壁温度，并以努谢尔数为参数，讨论了CO2与管壁之间的换热过程。
Carbon capture utilization and storage (CCUS) is the technology with the greatest potential to decrease the content of CO2in the atmosphere, which is the main contributor to global warming and can result in a significant number of environmental problems. The transportation of CO2is the most important node in the CCUS chain and a pipeline is an economical and efficient means of transportation. In the process of CO2pipeline building, a certain amount of venting devices should be installed to prevent overpressure of the main pipeline and allow for overhaul of the main pipeline. Hence it is necessary to obtain the characteristics of CO2inside the venting pipe during the venting process in order to maintain the safety of both the venting pipe and the main pipeline during release. In this study, two 2 m long venting pipes were connected by valves and installed on an industrial-scale pipeline. Two group venting experiments were carried out with two different openings of the valve. Industrial-scale experiment apparatus was used to obtain crucial data and get results closer to an actual industrial setting. During the experiments the evolution of the temperature and the pressure of the CO2were measured. Based on the pressure and temperature data, the differences of the phase transition of the CO2in the two experiments were compared. No dry ice was generated inside the pipe during the experiments. A throttling effect was generated in one group experiment but not in the other. In addition, the evolution trend of the Joule–Thomson coefficient was discussed. During the whole venting process, the wall temperature was obtained and the Nusselt number was selected as a parameter to discuss the process of heat transfer between the CO2and the pipeline wall.
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DOI：
10.1115/1.859834
发表时间：
2012-02
期刊：
--
影响因子：
--
作者：
M. Mohitpour;Patricia N. Seevam;K. Botros;B. Rothwell;C. Ennis
通讯作者：
M. Mohitpour;Patricia N. Seevam;K. Botros;B. Rothwell;C. Ennis
影响因子：
7.8
作者：
Shuaiwei Gu;Yuxing Li;Lin Teng;Cailin Wang;Q. Hu;Datong Zhang;Xiao Ye;Jinghan Wang;S. Iglauer
通讯作者：
Shuaiwei Gu;Yuxing Li;Lin Teng;Cailin Wang;Q. Hu;Datong Zhang;Xiao Ye;Jinghan Wang;S. Iglauer
影响因子：
7.8
作者：
S. Han;D. Chang;Jooil Kim;Won-Young Chang
通讯作者：
S. Han;D. Chang;Jooil Kim;Won-Young Chang
影响因子：
2.4
作者：
L. Wei
通讯作者：
L. Wei
DOI：
10.1016/j.egypro.2013.06.381
发表时间：
2013
期刊：
Energy Procedia
影响因子：
--
作者：
S. Han;Jooil Kim;D. Chang
通讯作者：
S. Han;Jooil Kim;D. Chang