IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v331y2025ics0360544225027471.html

Thermodynamic and safety analysis for hydrogen production in a supercritical water gasification system of coal by multi-oxidizers distribution

Author

Listed:
  • Luo, Kui
  • Dong, Runqiu
  • Li, Xujun
  • Peng, Zhiyong
  • Lu, Libo
  • Xu, Jialing
  • Jin, Hui
  • Guo, Liejin

Abstract

Coal supercritical water gasification (SCWG) for hydrogen production technology is highly prospective due to the clean and efficient treatment process. A single oxidation reactor heating method is usually used in existing work limiting the efficient and stable operation of the system due to high component temperatures. This paper proposed the heat supply strategy of multi-oxidation reactor and heat exchanger layout to improve the system performance for the realization of reasonable matching of material flow and energy flow in each stage of the system. The improved system reduced the maximum temperature of the oxidation reactor from 1550 °C to 850 °C, and the system exergy efficiency and H2 yield reached 49.30 % and 101 kg/h (at the mass ratio of coal to water of 1:10), respectively. The exergy flow results showed that the improved system exergy loss was concentrated in the oxidation reactor (34.00 %) heat exchanger (28.86 %), cooler (19.07 %), and gasification reactor (9.70 %). Exergy efficiency increased as the mass ratio of coal to water increased to the maximum exergy efficiency of 53.50 %. As the temperature increased from 600 °C to 675 °C, the exergy efficiency decreased from 53.10 % to 48.70 %. System adjustability analysis showed that the system can be stabilized over a 40 %–100 % range of feed fluctuations. This work may provide an optimization strategy for efficient operation and dynamic safety regulation of H2 production by SCWG technology.

Suggested Citation

  • Luo, Kui & Dong, Runqiu & Li, Xujun & Peng, Zhiyong & Lu, Libo & Xu, Jialing & Jin, Hui & Guo, Liejin, 2025. "Thermodynamic and safety analysis for hydrogen production in a supercritical water gasification system of coal by multi-oxidizers distribution," Energy, Elsevier, vol. 331(C).
    • Handle: RePEc:eee:energy:v:331:y:2025:i:c:s0360544225027471
    DOI: 10.1016/j.energy.2025.137105
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225027471
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.137105?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

    for a different version of it.

    References listed on IDEAS

    as
    1. Duan, Wenjun & Han, Jiachen & Yang, Shuo & Wang, Zhimei & Yu, Qingbo & Zhan, Yaquan, 2024. "Understanding CO2 adsorption in layered double oxides synthesized by slag through kinetic and modelling techniques," Energy, Elsevier, vol. 297(C).
    2. Kadam, Rahul & Panwar, N.L., 2017. "Recent advancement in biogas enrichment and its applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 892-903.
    3. Yang, Zikun & Zhang, Mingming & Liu, Liyun & Zhou, Dequn, 2022. "Can renewable energy investment reduce carbon dioxide emissions? Evidence from scale and structure," Energy Economics, Elsevier, vol. 112(C).
    4. Huang, Chengwei & Xu, Jialing & Xu, Shuai & Shan, Murong & Liu, Shanke & Yu, Lijun, 2024. "Optimizing H2 production from biomass: A machine learning-enhanced model of supercritical water gasification dynamics," Energy, Elsevier, vol. 312(C).
    5. Peng, Zhiyong & Xu, Jialing & Rong, Siqi & Luo, Kui & Lu, Libo & Jin, Hui & Zhao, Qiuyang & Guo, Liejin, 2023. "Thermodynamic and environmental analysis for multi-component supercritical thermal fluid generation by supercritical water gasification of oilfield wastewater," Energy, Elsevier, vol. 269(C).
    6. Newell, Richard G. & Raimi, Daniel & Villanueva, Seth & Prest, Brian C., 2021. "Global Energy Outlook 2021: Pathways from Paris," RFF Reports 21-11, Resources for the Future.
    7. Wang, Cui & Jin, Hui & Peng, Pai & Chen, Jia, 2019. "Thermodynamics and LCA analysis of biomass supercritical water gasification system using external recycle of liquid residual," Renewable Energy, Elsevier, vol. 141(C), pages 1117-1126.
    8. Wang, Yu & Ren, Changyifan & Guo, Shenghui & Liu, Shi & Du, Mingming & Chen, Yunan & Guo, Liejin, 2023. "Thermodynamic and environmental analysis of heat supply in pig manure supercritical water gasification system," Energy, Elsevier, vol. 263(PA).
    9. Yang, Xin & Cheng, Ke & Jia, Guo-zhu, 2019. "The molecular dynamics simulation of hydrogen bonding in supercritical water," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 516(C), pages 365-375.
    10. Guo, Shenghui & Meng, Fanrui & Peng, Pai & Xu, Jialing & Jin, Hui & Chen, Yunan & Guo, Liejin, 2022. "Thermodynamic analysis of the superiority of the direct mass transfer design in the supercritical water gasification system," Energy, Elsevier, vol. 244(PA).
    11. Liu, Ding & Xu, Hao & Chen, Yanpeng & Chen, Shida & Xin, Fudong & Wu, Heng & Zong, Peng & Wang, Jinwei, 2025. "Evolution of pore structure in bituminous coal during in-situ supercritical water gasification: Experimental study and mechanistic understanding," Energy, Elsevier, vol. 324(C).
    12. Duan, Wenjun & Li, Rongmin & Yang, Shuo & Han, Jiachen & Lv, Xiaojun & Wang, Zhimei & Yu, Qingbo, 2024. "Theoretical study on coal gasification behavior in CO2 atmosphere driven by slag waste heat," Energy, Elsevier, vol. 305(C).
    13. Dong, Runqiu & Jia, Hanbing & Tian, Jianghua & Wu, Liang & Liu, Zhigang & Peng, Zhiyong & Xu, Jialing & Luo, Kui & Jin, Hui & Chen, Bin & Guo, Liejin, 2025. "Thermodynamic analysis and life cycle assessment of the preferred supercritical water gasification coupled system for energy self-sufficiency: From food waste to hydrogen," Energy, Elsevier, vol. 317(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. Zhang, Chenghao & Zhao, Qiuyang & Wang, Xuetao & Zhang, Yanlong & Dong, Yu & Jin, Hui & Guo, Liejin, 2025. "An auto-thermal poly-generation hydrogen production system based on supercritical water gasification of oily wastewater: Thermodynamic and environmental analysis," Energy, Elsevier, vol. 338(C).
    2. Du, Mingming & Liu, Fan & Yuan, Haoran & Chen, Yu-nan & Gu, Jing, 2025. "Thermodynamic, life cycle, and techno-economic assessment of an autothermal supercritical water gasification system for direct processing raw pig manure: Hydrogen generation and ammonia recovery," Energy, Elsevier, vol. 330(C).
    3. Qi, Xingang & Ren, Zhenhua & Meng, Fanrui & Lu, Libo & Liu, Fan & Li, Xunjun & Jin, Hui & Chen, Yunan & Guo, Liejin, 2024. "Thermodynamic and environmental analysis of an integrated multi-effect evaporation and organic wastewater supercritical water gasification system for hydrogen production," Applied Energy, Elsevier, vol. 357(C).
    4. Li, Yifeng & Xing, Guowei & Liu, Shi & Guo, Shenghui & Ge, Zhiwei & Guo, Liejin, 2025. "Thermodynamic and environmental analysis of the hydrogen and combustible gas production in supercritical water partial oxidation system of coal," Energy, Elsevier, vol. 326(C).
    5. Peng, Zhiyong & Tian, Jianghua & Dong, Runqiu & Jia, Hanbing & Wu, Liang & Liu, Zhigang & Xu, Jialing & Jin, Hui & Chen, Bin & Guo, Liejin, 2025. "Thermodynamic analysis and life cycle assessment of a new method for the preparation of ultrafine copper powders by supercritical hydrothermal synthesis integrating biomass supercritical water gasification," Energy, Elsevier, vol. 315(C).
    6. Duan, Wenjun & Dong, Xinyuan & Gao, Lihua & Wang, Zhimei & Wang, Junhan, 2025. "Insights into thermodynamic characteristics of CO2/H2O(g) co-assist coke oven gas reforming using steel slag as heat carrier," Energy, Elsevier, vol. 328(C).
    7. Peng, Zhiyong & Xu, Jialing & Rong, Siqi & Luo, Kui & Lu, Libo & Jin, Hui & Zhao, Qiuyang & Guo, Liejin, 2023. "Thermodynamic and environmental analysis for multi-component supercritical thermal fluid generation by supercritical water gasification of oilfield wastewater," Energy, Elsevier, vol. 269(C).
    8. Cui, Da & Li, Yang & Zhang, Xu & Wu, Shuang & Luk, Hon Man & Han, Shiqi & Pan, Shuo & Fattahi, Moslem & Wang, Qing & Zhang, Xuehua, 2025. "Molecular dynamics insights into hydrogen production by biomass supercritical water gasification: A free radical reaction perspective," Energy, Elsevier, vol. 341(C).
    9. Hu, Dianqi & Ren, Changyifan & Zhang, Shuyuan & Ma, Miaomiao & Chen, Yunan & Chen, Bin & Guo, Liejin, 2024. "Thermodynamic and environmental analysis of integrated supercritical water gasification of sewage sludge for power and hydrogen production," Energy, Elsevier, vol. 299(C).
    10. Dong, Runqiu & Jia, Hanbing & Tian, Jianghua & Wu, Liang & Liu, Zhigang & Peng, Zhiyong & Xu, Jialing & Luo, Kui & Jin, Hui & Chen, Bin & Guo, Liejin, 2025. "Thermodynamic analysis and life cycle assessment of the preferred supercritical water gasification coupled system for energy self-sufficiency: From food waste to hydrogen," Energy, Elsevier, vol. 317(C).
    11. Filipe Neves & Armando A. Soares & Abel Rouboa, 2025. "Systematic Review of Biomass Supercritical Water Gasification for Energy Production," Energies, MDPI, vol. 18(20), pages 1-25, October.
    12. Peng, Pai & Yuan, Yubo & Ge, Hui & Yu, Jianyu & Chen, Yunan & Jin, Hui, 2024. "Thermodynamic and life cycle assessment analysis of polymer-containing oily sludge supercritical water gasification system combined with Organic Rankine Cycle," Energy, Elsevier, vol. 305(C).
    13. Wu, Hongtu & Zhang, Bowei & Wang, Weizuo & Jin, Hui, 2024. "Optimizing phase equilibrium predictions for the liquefaction of supercritical water gasification products: Enhancing energy storage solutions through advanced thermodynamic modeling," Energy, Elsevier, vol. 308(C).
    14. Huang, Haiping & Huang, Baolian & Sun, Aijun, 2023. "How do mineral resources influence eco-sustainability in China? Dynamic role of renewable energy and green finance," Resources Policy, Elsevier, vol. 85(PA).
    15. Faik Bilgili & Daniel Balsalobre-Lorente & Sevda Kuşkaya & Mohammed Alnour & Seyit Önderol & Mohammad Enamul Hoque, 2024. "Are research and development on energy efficiency and energy sources effective in the level of CO2 emissions? Fresh evidence from EU data," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 26(9), pages 24183-24219, September.
    16. Qing Chang & Xiangbo Fan & Shaohui Zou, 2025. "Threshold Effects of Renewable Energy Investment on the Energy Efficiency–Fossil Fuel Consumption Nexus: Evidence from 71 Countries," Energies, MDPI, vol. 18(8), pages 1-20, April.
    17. Satar Bakhsh & Md Shabbir Alam & Wei Zhang, 2024. "Green finance and Sustainable Development Goals: is there a role for geopolitical uncertainty?," Economic Change and Restructuring, Springer, vol. 57(4), pages 1-30, August.
    18. Liu, Zhongyuan & Yu, Qingbo & Gao, Jinchao & Zhao, Jiatai & Duan, Wenjun, 2024. "Effect of pyrolysis parameters on the biochar reactivity in the N-absorption reaction of chemical looping ammonia generation," Energy, Elsevier, vol. 310(C).
    19. Chunyi Ji & Xinyue Wang & Wei Zhao & Xuan Wang & Wuyong Qian, 2025. "The Impact of Environmental Policies on Renewable Energy Storage Decisions in the Power Supply Chain," Energies, MDPI, vol. 18(9), pages 1-24, April.
    20. Khan, Muhammad Usman & Lee, Jonathan Tian En & Bashir, Muhammad Aamir & Dissanayake, Pavani Dulanja & Ok, Yong Sik & Tong, Yen Wah & Shariati, Mohammad Ali & Wu, Sarah & Ahring, Birgitte Kiaer, 2021. "Current status of biogas upgrading for direct biomethane use: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 149(C).

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    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:331:y:2025:i:c:s0360544225027471. 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.