Effects of phase state and leakage direction on diffusion characteristics of CO<sub>2</sub> released from industrial-scale pipeline

YANG Xiaoguang; YU Shuai; YAN Xingqing; QIAO Fanfan; LIU Zhenxi; AN Jiaran; ZHAO Kun; YU Jianliang

doi:10.11949/0438-1157.20260831

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Effects of phase state and leakage direction on diffusion characteristics of CO₂ released from industrial-scale pipeline

更新时间：2026-07-13

- Effects of phase state and leakage direction on diffusion characteristics of CO₂ released from industrial-scale pipeline
- CIESC Journal (2026)
- 作者机构：
  
  大连理工大学化工学院，辽宁大连 116024
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20260831
  CLC： X937
- Received：15 June 2026，
  
  Revised：2026-07-12，
  
  Accepted：13 July 2026，
- 稿件说明：
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YANG Xiaoguang, YU Shuai, YAN Xingqing, et al. Effects of phase state and leakage direction on diffusion characteristics of CO₂ released from industrial-scale pipeline[J/OL]. CIESC Journal, 2026. DOI: 10.11949/0438-1157.20260831.
DOI：

YANG Xiaoguang, YU Shuai, YAN Xingqing, et al. Effects of phase state and leakage direction on diffusion characteristics of CO₂ released from industrial-scale pipeline[J/OL]. CIESC Journal, 2026. DOI: 10.11949/0438-1157.20260831. DOI：

摘要

基于相态及泄漏方向开展了气相CO

水平泄漏和含杂质密相CO

竖直放空泄漏的2组工业规模（主管道长256 m，内径233 mm）CO

管道实验，研究了CO

管道泄漏过程中扩散形貌及浓度变化规律。研究结果表明：泄漏初期，气相CO

可见云膨胀速率呈先升高后降低，随后再升高变化趋势；密相CO

可见云膨胀速率呈逐渐降低变化趋势；密相CO

可见云相较气相，形态更显著、扩散范围更广。随泄漏过程推进，CO

重气效应显著区域逐步向泄漏口收缩。放空泄漏初期，远场CO

浓度波动幅度较大，泄漏口近场浓度基本无明显波动；全程来看，近场平均浓度高于远场。依据CO

和CO职业接触限值，量化了2组实验下的浓度风险范围；

Abstract

Two sets of industrial scale CO

pipeline experiments were conducted

including horizontal leakage of gaseous CO

and vertical venting leakage of impurity-containing dense-phase CO

. The test pipeline had a total length of 256 m and an inner diameter of 233 mm. The evolution of diffusion morphology and concentration distribution during CO

leakage were investigated with respect to phase state and leakage direction. The results show that the expansion rate of the visible cloud of gaseous CO

first increases

then decreases

and rises again in the early leakage stage

while that of dense-phase CO

gradually declines. Compared with gaseous CO

dense-phase CO

presents more distinct cloud morphology and a wider diffusion range. As the leakage proceeds

the region dominated by the heavy gas effect of CO

gradually shrinks toward the leakage outlet. At the initial stage of venting leakage

concentration fluctuates drastically in the far field

whereas no obvious fluctuation is observed in the near field. Overall

the average concentration in the near field is higher than that in the far field. Furthermore

the concentration hazard zones for the two experiments were quantified according to the occupational exposure limits of CO

and CO.

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references

徐四川 , 马惜钰 , 周天皓 , 等 . 碳排放CO 2 温室效应机制 [J ] . 云南大学学报(自然科学版) , 2023 , 45 ( 2 ): 513 - 522 .

Xu S C , Ma X Y , Zhou T H , et al . The mechanism of greenhouse effect of carbon emission CO 2 [J ] . Journal of Yunnan University (Natural Sciences Edition) , 2023 , 45 ( 2 ): 513 - 522 .

孙晓晨 , 杨斌彬 , 刘梦丹 , 等 . 碳排放预测助力减缓温室效应的方法及情景模型研究综述 [J ] . 广东化工 , 2023 , 50 ( 2 ): 138 - 140, 131 .

Sun X C , Yang B B , Liu M D , et al . A review of methods and scenario models for predicting carbon emissions to help mitigate greenhouse effects [J ] . Guangdong Chemical Industry , 2023 , 50 ( 2 ): 138 - 140, 131 .

刘晓东 , 潘文慧 . 温室效应成因及对策研究综述 [J ] . 绵阳师范学院学报 , 2013 , 32 ( 5 ): 91 - 94 .

Liu X D , Pan W H . On causes of and countermeasures to greenhouse effect [J ] . Journal of Mianyang Normal University , 2013 , 32 ( 5 ): 91 - 94 .

Chen S Y , Liu J F , Zhang Q , et al . A critical review on deployment planning and risk analysis of carbon capture, utilization, and storage (CCUS) toward carbon neutrality [J ] . Renewable and Sustainable Energy Reviews , 2022 , 167 : 112537 .

Su X N , Liu P F , Mei Y D , et al . The impact of carbon capture, utilization, and storage (CCUS) projects on environmental protection, economic development, and social equity [J ] . Journal of Cleaner Production , 2024 , 482 : 144218 .

Zhu J L , Wu J L , Xie N Y , et al . Study on water hammer phase transition characteristics of dense/liquid phase CO 2 pipeline [J ] . Energy , 2024 , 311 : 133470 .

Luo X B , Wang M H , Oko E , et al . Simulation-based techno-economic evaluation for optimal design of CO 2 transport pipeline network [J ] . Applied Energy , 2014 , 132 : 610 - 620 .

Koornneef J , Spruijt M , Molag M , et al . Quantitative risk assessment of CO 2 transport by pipelines: a review of uncertainties and their impacts [J ] . Journal of Hazardous Materials , 2010 , 177 ( 1/2/3 ): 12 - 27 .

Kruse H , Tekiela M . Calculating the consequences of a CO 2 -pipeline rupture [J ] . Energy Conversion and Management , 1996 , 37 ( 6/7/8 ): 1013 - 1018 .

Li S , Zhang Y M , Lin Q G , et al . Topography modelling for potentially leaked CO 2 diffusion and its application in human health risk assessment for carbon capture, utilisation, and storage engineering in China [J ] . International Journal of Greenhouse Gas Control , 2022 , 119 : 103714 .

Mohammed H S , Jamaludin S N F , Olutoki J O , et al . Advances in Joule-Thomson cooling effects in CO 2 storage: a systematic review of modeling techniques and implications for reservo ir stability [J ] . Energy Reports , 2025 , 13 : 3246 - 3264 .

Qiao F , Liu Z , Yu S , et al . Experimental study on the influence in non-equilibrium phase transition and heat transfer of mixed impurities containing CH₄, CO, and N₂ during large-scale CO₂ pipeline venting process [J ] . CO , and N₂ during large-scale CO₂ pipeline venting process.

Ahmad M , Lowesmith B , De Koeijer G , et al . COSHER joint industry project: Large scale pipeline rupture tests to study CO 2 release and dispersion [J ] . International Journal of Greenhouse Gas Control , 2015 , 37 : 340 - 353 .

喻健良 , 郭晓璐 , 闫兴清 , 等 . 工业规模CO 2 管道泄放过程中的压力响应及相态变化 [J ] . 化工学报 , 2015 , 66 ( 11 ): 4327 - 4334 .

Yu J L , Guo X L , Yan X Q , et al . Pressure response and phase transition in process of CO 2 pipeline release in industrial scale [J ] . CIESC Journal , 2015 , 66 ( 11 ): 4327 - 4334 .

喻健良 , 郭晓璐 , 陈绍 . 工业规模CO 2 管道泄放装置设计和试验研究 [C ] . 第二届CCPS中国过程安全会议论文集 , 2014 : 444 - 450 .

Yu J L , Guo X L , Chen S . Design and experimental study of the CO2 pipeline relief equipment in industry scale [C ] . 2ndCCPS China Conference on Process Safety , 2014 : 444 - 450 .

Gu S W , Li Y X , Teng L , et al . A new model for predicting the decompression behavior of CO 2 mixtures in various phases [J ] . Process Safety and Environmental Protection , 2018 , 120 : 237 - 247 .

顾帅威 , 李玉星 , 滕霖 , 等 . 小尺度超临界CO 2 管道小孔泄漏减压及温降特性 [J ] . 化工进展 , 2019 , 38 ( 2 ): 805 - 812 .

Gu S W , Li Y X , Teng L , et al . Decompression and temperature drop characteristics of small-scale supercritical CO 2 pipeline leakage with small holes [J ] . Chemical Industry and Engineering Progress , 2019 , 38 ( 2 ): 805 - 812 .

Zhang Z X , Lu Z J , Yan L G , et al . Experiment and numerical investigation on flow characteristics and near-field structure of dense phase CO 2 pipeline leakage [J ] . Process Safety and Environmental Protection , 2024 , 182 : 327 - 344 .

Joshi P , Bikkina P , Wang Q S . Consequence analysis of accidental release of supercritical carbon dioxide from high pressure pipelines [J ] . International Journal of Greenhouse Gas Control , 2016 , 55 : 166 - 176 .

Yang K , Chen L , Hu Y W , et al . Thermophysical evolution during different decompression of N2-containing S-CO 2 pipelines [J ] . Greenhouse Gases: Science and Technology , 2024 , 14 ( 1 ): 182 - 196 .

Yang X G , Qiao F F , Yan X Q , et al . Experimental study on leakage and diffusion risks of impurity-containing dense-phase CO₂ pipelines at industrial scale [J ] . Process Safety and Environmental Protection , 2026 , 207 : 108409 .

Hu Q H , Guo Y Q , Chen J W , et al . Experimental study of leakage diffusion in supercritical/dense phase CO 2 pipelines [J ] . Energy , 2025 , 325 : 136217 .

Yang X G , Yan X Q , Yu S , et al . Experimental study on leakage and dispersion characteristics of large-scale liquid CO 2 storage tank [J ] . Process Safety and Environmental Protection , 2026 , 209 : 108579 .

He Y F , Yu S , Yan X Q , et al . Development of a throttling venting model for CO 2 pipelines and study of venting characteristics [J ] . Process Safety and Environmental Protection , 2025 , 196 : 106962 .

郑国祥 . 二氧化碳卫生知识与健康 [J ] . 职业与健康 , 1988 , 4 ( 5 ):

Zheng G X . Carbon dioxide hygiene knowledge and health [J ] . Occupation and Health , 1988 , 4 ( 5 ): ■-■.

■-■ .

国家卫生健康委员会 . 工作场所有害因素职业接触限值第1部分：化学有害因素 : GBZ 2.1—2019 [S ] . 北京 : 中国标准出版社, ◆◆◆◆.Occupational exposure limits for hazardous agents in the workplace— Part 1: Chemical hazardous agents: GBZ 2 . 1—2019 [S ] . Beijing: Standards Press of China, ◆◆◆◆.

中华人民共和国卫生部 . 工作场所有害因素职业接触限值第1部分: 化学有害因素 : GBZ 2.1—2017 [S ] . 北京 : 人民卫生出版社 , 2017 .

Ministry of Health of the People’s Republic of China . Occupational exposure limits for hazardous agents in the workplace Part1: Chemical hazardous agents : GBZ 2.1—2017 [S ] . Beijing : People’s Medical Publishing House , 2017 .

Cao Z G , Hu Y W , Chen L , et al . Experimental study of leakage characteristics and risk prediction of N2-containing dense-phase CO 2 pipelines in real transportation conditions [J ] . Process Safety and Environmental Protection , 2024 , 187 : 1112 - 1125 .

庄晓东 , 谢军龙 , 侯佳鑫 , 等 . 静风条件下CO 2 重气扩散数值模拟研究 [J ] . 工程热物理学报 , 2022 , 43 ( 6 ): 1512 - 1518 .

Zhuang X D , Xie J L , Hou J X , et al . Numerical study on diffusion of heavy gaseous CO 2 in stagnant free space [J ] . Journal of Engineering Thermophysics , 2022 , 43 ( 6 ): 1512 - 1518 .

薛明 . 一氧化碳职业中毒风险分析及防护措施探讨 [J ] . 石化技术 , 2023 , 30 ( 7 ): 113 - 115 .

Xue M . Risk analysis and protective measures for occupational carbon monoxide poisoning [J ] . Petrochemical Industry Technology , 2023 , 30 ( 7 ): 113 - 115 .

Abiha U , Noureen N . A Review on Toxicity of Carbon Monoxide on Human [J ] . Toxicology: Open Access , 2019 , 5 : 3 .

Santese T , Shvab J , Suslov D , et al . Impact of impurities on liquid methane properties under typical rocket operation conditions [J ] . International Journal of Thermofluids , 2023 , 18 : 100343 .

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⁰

Effects of phase state and leakage direction on diffusion characteristics of CO2 released from industrial-scale pipeline

DOI：10.11949/0438-1157.20260831

摘要

Abstract

关键词

Keywords

references

Effects of phase state and leakage direction on diffusion characteristics of CO₂ released from industrial-scale pipeline