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Dispersion of carbon dioxide released from buried high-pressure pipeline over complex terrain

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Abstract

To quantitatively assess the risks associated with Carbon Capture and Storage (CCS) technology, a better understanding of the dispersion characteristics of CO2 released from a high-pressure pipeline is necessary. The dispersion process is complicated as CO2 is denser than air, and the Joule-Thomson effect causes sharp drop of the temperature. In this study, computational fluid dynamics (CFD) technique was used to investigate the CO2 dispersion. The CFD model is validated by simulating a full-size blasting test. The influence of topography and low temperature at the release source on the dispersion of CO2 released from buried CO2 pipelines over complex terrain types was studied. This study provides a viable method for the assessment of the risks associated with CCS.

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Availability of data and materials

In this study, CFD numerical simulation was used to obtain data without falsification, and data and materials could be published.

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Funding

This work is supported by the Natural Science Foundation of Hebei Province, China, under Grant No. E2019210036 and Zhejiang basic public welfare research project (Grant No.LY18E090009).

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Authors and Affiliations

Authors

Contributions

Huiru Wang conducted experimental verification and CFD numerical simulation, analyzed the data, and wrote the manuscript;

Bin Liu made a significant contribution to the analysis and preparation of the manuscript;

Xiong Liu helped the analysis through constructive discussions;

Cheng Lu helped the analysis through constructive discussions;

Jiajia Deng contributed to the research idea;

Zhanping You contributed to the conception of the study.

Corresponding author

Correspondence to Bin Liu.

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Ethical approval

All analyses were based on previous published studies, thus no ethical approval and patient consent are required.

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The authors declare that they have no conflict of interest.

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Responsible Editor: Philippe Garrigues

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Highlights

• Validated CFD model for CO2 dispersion

• CFD simulations of CO2 dispersion over full-size real terrain.

• Effects of topography and low temperature at the source on the CO2 dispersion investigated.

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Wang, H., Liu, B., Liu, X. et al. Dispersion of carbon dioxide released from buried high-pressure pipeline over complex terrain. Environ Sci Pollut Res 28, 6635–6648 (2021). https://doi.org/10.1007/s11356-020-11012-7

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  • DOI: https://doi.org/10.1007/s11356-020-11012-7

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