IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v313y2024ics0360544224036880.html
   My bibliography  Save this article

The availability of industrial purge gas: Experimental and kinetic study of explosion characteristics of low-concentration H2/CH4 mixtures

Author

Listed:
  • Zhang, Hao
  • Nie, Baisheng
  • Liu, Xianfeng
  • Hu, Fangfang
  • He, Hengyi
  • Liu, Peijun
  • Zhang, Letong

Abstract

This study focuses on the resource utilization of purge gas from the coal chemical industry and evaluates its theoretical flammability. The explosion characteristics of low concentration H2-CH4 mixtures with nitrogen were investigated, analyzing the effects of equivalence ratio and nitrogen on explosion intensity. Kinetic mechanisms were employed to simulate the impact of equivalence ratio and nitrogen on OH radicals during the explosion process. Results indicate that as equivalence ratio increases, both the Pmax and (dP/dt)max initially increase and then decrease. Increasing the nitrogen proportion gradually reduces explosion intensity, with Pmax positively correlated to flame propagation speed. Comparative analysis reveals that nitrogen's suppressive effect on low concentration hydrogen is significantly greater than that on methane. Simulations show that changes in OH radicals during the explosion process are more pronounced in mixtures with higher hydrogen content. At the same equivalence ratio, hydrogen exhibits greater sensitivity to nitrogen, followed by methane, consistent with experimental findings. Nitrogen primarily affects the generation rate of OH radicals and ROP, with this effect becoming more pronounced as equivalence ratio increases. These findings provide a theoretical basis for utilizing explosion energy from purge gas and for risk prevention.

Suggested Citation

  • Zhang, Hao & Nie, Baisheng & Liu, Xianfeng & Hu, Fangfang & He, Hengyi & Liu, Peijun & Zhang, Letong, 2024. "The availability of industrial purge gas: Experimental and kinetic study of explosion characteristics of low-concentration H2/CH4 mixtures," Energy, Elsevier, vol. 313(C).
    • Handle: RePEc:eee:energy:v:313:y:2024:i:c:s0360544224036880
    DOI: 10.1016/j.energy.2024.133910
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544224036880
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2024.133910?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. Yang, Xiehe & Wang, Tiantian & Zhang, Yang & Zhang, Hai & Wu, Yuxin & Zhang, Jiansheng, 2022. "Hydrogen effect on flame extinction of hydrogen-enriched methane/air premixed flames: An assessment from the combustion safety point of view," Energy, Elsevier, vol. 239(PC).
    2. Ji, Shaobo & Li, Yang & Tian, Guohong & Shu, Minglei & Jia, Guorui & He, Shaoqing & Lan, Xin & Cheng, Yong, 2021. "Investigation of laminar combustion characteristics of ozonized methane-air mixture in a constant volume combustion bomb," Energy, Elsevier, vol. 226(C).
    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. Simon Drost & Sven Eckart & Chunkan Yu & Robert Schießl & Hartmut Krause & Ulrich Maas, 2023. "Numerical and Experimental Investigations of CH 4 /H 2 Mixtures: Ignition Delay Times, Laminar Burning Velocity and Extinction Limits," Energies, MDPI, vol. 16(6), pages 1-17, March.
    2. Lopez-Ruiz, G. & Alava, I. & Blanco, J.M., 2023. "Impact of H2/CH4 blends on the flexibility of micromix burners applied to industrial combustion systems," Energy, Elsevier, vol. 270(C).
    3. Rahimi, Sajjad & Mazaheri, Kiumars & Alipoor, Alireza & Mohammadpour, Amirreza, 2023. "The effect of hydrogen addition on methane-air flame in a stratified swirl burner," Energy, Elsevier, vol. 265(C).
    4. Yu, Changyou & Guo, Liang & Sun, Wanchen & Zhang, Hao & Cheng, Peng & Yan, Yuying & Zhu, Genan & Jiang, Mengqi & Guo, Yanan & Yue, Fei, 2024. "Experimental and chemical kinetic study on effects of H2-DME fusion addition on laminar premixed flame speed and flame instability for ammonia composite combustion," Energy, Elsevier, vol. 310(C).
    5. Chen, Xuanren & Wang, Hui & Wang, Xiangyu & Liu, Xiang & Zhu, Yuxuan, 2023. "Fuel/air mixing characteristics of a Micromix burner for hydrogen-rich gas turbine," Energy, Elsevier, vol. 282(C).
    6. Fu, Zaiguo & Sui, Lichao & Lu, Jin & Liu, Jiang & Weng, Peifen & Zeng, Zhuoxiong & Pan, Weiguo, 2023. "Investigation on effects of hydrogen addition to the thermal performance of a traditional counter-flow combustor," Energy, Elsevier, vol. 262(PA).
    7. Shu, Zhiyong & Lei, Gang & Liang, Wenqing & Zheng, Xiaohong & Qian, Hua, 2024. "Diffusion evolution behaviour of flammable clouds by liquid hydrogen spills in confined space with force ventilation: A numerical investigation," Renewable Energy, Elsevier, vol. 231(C).

    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:313:y:2024:i:c:s0360544224036880. 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.