IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v273y2023ics0360544223006187.html
   My bibliography  Save this article

Selective adsorption and transport of CO2–CH4 mixture under nano-confinement

Author

Listed:
  • Wu, Jian
  • Shen, Luming
  • Huang, Pengyu
  • Gan, Yixiang

Abstract

CO2-enhanced gas recovery (EGR) is a promising technology to sequestrate CO2 while enhancing CH4 recovery simultaneously in shale reservoirs. During the process, the mixture of injected CO2 and desorbed CH4 of varied compositions flows within nanopores of shale. The nanoconfinement is known to affect single-component gas flow and transport significantly but has not yet been properly addressed for non-equimolar gas mixtures. Herein, we use molecular dynamics to systematically investigate the selective adsorption and transport of CO2–CH4 mixture in kerogen slit nanopores. Results show that the gas mixture velocity decreases logarithmically with increasing CO2 molar ratio. The CO2/CH4 adsorption and transport selectivities are generally greater than one and have a strong negative correlation with the total pore gas pressure and pore size. The transport selectivity becomes rather important (i.e., much greater than one) when pore size is below 20 Å. Analyses indicate that surface adsorption and diffusion are primarily responsible for the selective transport, with bulk diffusion also playing a role. These findings provide nanoscale insights into the CO2-EGR in shale's organic matrix and suggest that the selective transport of CO2–CH4 mixture should be considered in large-scale simulations under certain pore size and pressure conditions.

Suggested Citation

  • Wu, Jian & Shen, Luming & Huang, Pengyu & Gan, Yixiang, 2023. "Selective adsorption and transport of CO2–CH4 mixture under nano-confinement," Energy, Elsevier, vol. 273(C).
    • Handle: RePEc:eee:energy:v:273:y:2023:i:c:s0360544223006187
    DOI: 10.1016/j.energy.2023.127224
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544223006187
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2023.127224?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Li, Jing & Wu, Keliu & Chen, Zhangxin & Wang, Wenyang & Yang, Bin & Wang, Kun & Luo, Jia & Yu, Renjie, 2019. "Effects of energetic heterogeneity on gas adsorption and gas storage in geologic shale systems," Applied Energy, Elsevier, vol. 251(C), pages 1-1.
    2. Xie, Weidong & Wang, Meng & Chen, Si & Vandeginste, Veerle & Yu, Zhenghong & Wang, Hua, 2022. "Effects of gas components, reservoir property and pore structure of shale gas reservoir on the competitive adsorption behavior of CO2 and CH4," Energy, Elsevier, vol. 254(PB).
    3. Huang, Liang & Ning, Zhengfu & Wang, Qing & Zhang, Wentong & Cheng, Zhilin & Wu, Xiaojun & Qin, Huibo, 2018. "Effect of organic type and moisture on CO2/CH4 competitive adsorption in kerogen with implications for CO2 sequestration and enhanced CH4 recovery," Applied Energy, Elsevier, vol. 210(C), pages 28-43.
    4. Qin, Chao & Jiang, Yongdong & Zuo, Shuangying & Chen, Shiwan & Xiao, Siyou & Liu, Zhengjie, 2021. "Investigation of adsorption kinetics of CH4 and CO2 on shale exposure to supercritical CO2," Energy, Elsevier, vol. 236(C).
    5. Gou, Qiyang & Xu, Shang & Hao, Fang & Yang, Feng & Shu, Zhiguo & Liu, Rui, 2021. "The effect of tectonic deformation and preservation condition on the shale pore structure using adsorption-based textural quantification and 3D image observation," Energy, Elsevier, vol. 219(C).
    6. Yang, Xu & Zhou, Wenning & Liu, Xunliang & Yan, Yuying, 2020. "A multiscale approach for simulation of shale gas transport in organic nanopores," Energy, Elsevier, vol. 210(C).
    7. Yang, Xue & Chen, Zeqin & Liu, Xiaoqiang & Xue, Zhiyu & Yue, Fen & Wen, Junjie & Li, Meijun & Xue, Ying, 2022. "Correction of gas adsorption capacity in quartz nanoslit and its application in recovering shale gas resources by CO2 injection: A molecular simulation," Energy, Elsevier, vol. 240(C).
    8. Li, Jiawei & Sun, Chenhao, 2022. "Molecular insights on competitive adsorption and enhanced displacement effects of CO2/CH4 in coal for low-carbon energy technologies," Energy, Elsevier, vol. 261(PB).
    9. Hu, Yuhao & Liu, Guannan & Luo, Ning & Gao, Feng & Yue, Fengtian & Gao, Tao, 2022. "Multi-field coupling deformation of rock and multi-scale flow of gas in shale gas extraction," Energy, Elsevier, vol. 238(PA).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Wu, Jian & Gan, Yixiang & Shi, Zhang & Huang, Pengyu & Shen, Luming, 2023. "Pore-scale lattice Boltzmann simulation of CO2-CH4 displacement in shale matrix," Energy, Elsevier, vol. 278(PB).
    2. Xie, Weidong & Wang, Hua & Vandeginste, Veerle & Chen, Si & Gan, Huajun & Wang, Meng & Yu, Zhenghong, 2023. "Thermodynamic and kinetic affinity of CO2 relative to CH4 and their pressure, temperature and pore structure sensitivity in the competitive adsorption system in shale gas reservoirs," Energy, Elsevier, vol. 277(C).
    3. Qin, Chao & Jiang, Yongdong & Zhou, Junping & Zuo, Shuangying & Chen, Shiwan & Liu, Zhengjie & Yin, Hong & Li, Ye, 2022. "Influence of supercritical CO2 exposure on water wettability of shale: Implications for CO2 sequestration and shale gas recovery," Energy, Elsevier, vol. 242(C).
    4. Liu, Bo & Mohammadi, Mohammad-Reza & Ma, Zhongliang & Bai, Longhui & Wang, Liu & Xu, Yaohui & Hemmati-Sarapardeh, Abdolhossein & Ostadhassan, Mehdi, 2023. "Pore structure evolution of Qingshankou shale (kerogen type I) during artificial maturation via hydrous and anhydrous pyrolysis: Experimental study and intelligent modeling," Energy, Elsevier, vol. 282(C).
    5. Micheal, Marembo & Yu, Hao & Meng, SiWei & Xu, WenLong & Huang, HanWei & Huang, MengCheng & Zhang, HouLin & Liu, He & Wu, HengAn, 2023. "Gas production from shale reservoirs with bifurcating fractures: A modified quadruple-domain model coupling microseismic events," Energy, Elsevier, vol. 278(C).
    6. Wang, Hui & Chen, Li & Qu, Zhiguo & Yin, Ying & Kang, Qinjun & Yu, Bo & Tao, Wen-Quan, 2020. "Modeling of multi-scale transport phenomena in shale gas production — A critical review," Applied Energy, Elsevier, vol. 262(C).
    7. Gao, Zheng & Li, Bobo & Li, Jianhua & Jia, Lidan & Wang, Zhonghui, 2023. "Adsorption characteristics and thermodynamic analysis of shale in northern Guizhou, China: Measurement, modeling and prediction," Energy, Elsevier, vol. 262(PA).
    8. Xu, HengYu & Yu, Hao & Fan, JingCun & Xia, Jun & Liu, He & Wu, HengAn, 2022. "Formation mechanism and structural characteristic of pore-networks in shale kerogen during in-situ conversion process," Energy, Elsevier, vol. 242(C).
    9. Li, Jiawei & Sun, Chenhao, 2022. "Molecular insights on competitive adsorption and enhanced displacement effects of CO2/CH4 in coal for low-carbon energy technologies," Energy, Elsevier, vol. 261(PB).
    10. Zhang, Tao & Zhang, Lei & Wang, Yongke & Qiao, Xiangyang & Feng, Dong & Zhao, Wen & Li, Xiangfang, 2020. "An integrated well-pattern optimization strategy to unlock continental tight gas reservoir in China," Energy, Elsevier, vol. 209(C).
    11. Yan, Min & Zhou, Ming & Li, Shugang & Lin, Haifei & Zhang, Kunyin & Zhang, Binbin & Shu, Chi-Min, 2021. "Numerical investigation on the influence of micropore structure characteristics on gas seepage in coal with lattice Boltzmann method," Energy, Elsevier, vol. 230(C).
    12. Lei Pan & Ling Chen & Peng Cheng & Haifeng Gai, 2022. "Methane Storage Capacity of Permian Shales with Type III Kerogen in the Lower Yangtze Area, Eastern China," Energies, MDPI, vol. 15(5), pages 1-23, March.
    13. Qin, Chao & Jiang, Yongdong & Zuo, Shuangying & Chen, Shiwan & Xiao, Siyou & Liu, Zhengjie, 2021. "Investigation of adsorption kinetics of CH4 and CO2 on shale exposure to supercritical CO2," Energy, Elsevier, vol. 236(C).
    14. Qin, Chao & Jiang, Yongdong & Cao, Mengyao & Zhou, Junping & Song, Xiao & Zuo, Shuangying & Chen, Shiwan & Luo, Yahuang & Xiao, Siyou & Yin, Hong & Du, Xidong, 2023. "Experimental study on the methane desorption-diffusion behavior of Longmaxi shale exposure to supercritical CO2," Energy, Elsevier, vol. 262(PA).
    15. Yang, Xue & Chen, Zeqin & Liu, Xiaoqiang & Xue, Zhiyu & Yue, Fen & Wen, Junjie & Li, Meijun & Xue, Ying, 2022. "Correction of gas adsorption capacity in quartz nanoslit and its application in recovering shale gas resources by CO2 injection: A molecular simulation," Energy, Elsevier, vol. 240(C).
    16. Li, Bo & Yu, Hao & Xu, WenLong & Huang, HanWei & Huang, MengCheng & Meng, SiWei & Liu, He & Wu, HengAn, 2023. "A multi-physics coupled multi-scale transport model for CO2 sequestration and enhanced recovery in shale formation with fractal fracture networks," Energy, Elsevier, vol. 284(C).
    17. Sun, Wenjibin & Zuo, Yujun & Lin, Zhang & Wu, Zhonghu & Liu, Hao & Lin, Jianyun & Chen, Bin & Chen, Qinggang & Pan, Chao & Lan, Baofeng & Liu, Song, 2023. "Impact of tectonic deformation on shale pore structure using adsorption experiments and 3D digital core observation: A case study of the Niutitang Formation in Northern Guizhou," Energy, Elsevier, vol. 278(C).
    18. Shan Yuan & Hong-Ze Gang & Yi-Fan Liu & Lei Zhou & Muhammad Irfan & Shi-Zhong Yang & Bo-Zhong Mu, 2022. "Adsorption and Diffusion Behaviors of CO 2 and CH 4 Mixtures in Different Types of Kerogens and Their Roles in Enhanced Energy Recovery," Sustainability, MDPI, vol. 14(22), pages 1-21, November.
    19. Yang, Jinghua & Wang, Min & Wu, Lei & Liu, Yanwei & Qiu, Shuxia & Xu, Peng, 2021. "A novel Monte Carlo simulation on gas flow in fractal shale reservoir," Energy, Elsevier, vol. 236(C).
    20. Guo, Dan & Cao, Xuewen & Ding, Gaoya & Zhang, Pan & Liu, Yang & Bian, Jiang, 2022. "Crystallization and nucleation mechanism of heavy hydrocarbons in natural gas," Energy, Elsevier, vol. 239(PB).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:273:y:2023:i:c:s0360544223006187. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.