IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i23p8824-d981424.html
   My bibliography  Save this article

Optical Properties of Coal after Ex-Situ Experimental Simulation of Underground Gasification at Pressures of 10 and 40 bar

Author

Listed:
  • Jacek Nowak

    (Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, ul. Akademicka 2A, 44-100 Gliwice, Poland)

  • Magdalena Kokowska-Pawłowska

    (Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, ul. Akademicka 2A, 44-100 Gliwice, Poland)

  • Joanna Komorek

    (Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, ul. Akademicka 2A, 44-100 Gliwice, Poland)

  • Marian Wiatowski

    (Główny Instytut Górnictwa (Central Mining Institute), Plac Gwarków 1, 40-166 Katowice, Poland)

  • Krzysztof Kapusta

    (Główny Instytut Górnictwa (Central Mining Institute), Plac Gwarków 1, 40-166 Katowice, Poland)

  • Zdzisław Adamczyk

    (Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, ul. Akademicka 2A, 44-100 Gliwice, Poland)

Abstract

Coal gasification experiments were carried out in a reactor used to simulate underground coal gasification (UCG) processes under ex situ conditions at pressures of 10 and 40 bar. Changes in the optical properties of the organic matter were analyzed and the influence of temperature on coal during the UGC process was subsequently determined. The values of the true maximum reflectance determined for the gasification residue at pressures of 10 and 40 bar, and at distances of 0.75 and 1.75 m, reached a level corresponding to semi-graphite. Furthermore, it was found that the values of the true maximum reflectance and bireflectance decrease with increasing distance from the reactor chamber inlet. In addition, the results show that, regardless of the pressure used during the experiment, the temperature influence on the coal decreased with increasing distance from the reactor chamber inlet. The true temperatures operating during the experiment were higher than those recorded by the thermocouples, regardless of the pressure used. However, it was found that the distance at which the influence of temperature on the coal is still marked during the gasification process depends on the pressure used in the experiment. For example, in the case of the experiment at a pressure of 10 bar, the estimated distance is approximately 60 m, while for a pressure of 40 bar, it is approximately 35 m. These results can, and should, be taken into account for the planning of an UGC process.

Suggested Citation

  • Jacek Nowak & Magdalena Kokowska-Pawłowska & Joanna Komorek & Marian Wiatowski & Krzysztof Kapusta & Zdzisław Adamczyk, 2022. "Optical Properties of Coal after Ex-Situ Experimental Simulation of Underground Gasification at Pressures of 10 and 40 bar," Energies, MDPI, vol. 15(23), pages 1-19, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:23:p:8824-:d:981424
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/23/8824/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/23/8824/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Alexander Y. Klimenko, 2009. "Early Ideas in Underground Coal Gasification and Their Evolution," Energies, MDPI, vol. 2(2), pages 1-21, June.
    2. Krzysztof Kapusta & Marian Wiatowski & Krzysztof Stańczyk & Renato Zagorščak & Hywel Rhys Thomas, 2020. "Large-scale Experimental Investigations to Evaluate the Feasibility of Producing Methane-Rich Gas (SNG) through Underground Coal Gasification Process. Effect of Coal Rank and Gasification Pressure," Energies, MDPI, vol. 13(6), pages 1-14, March.
    3. Magdalena Pankiewicz-Sperka & Krzysztof Kapusta & Wioleta Basa & Katarzyna Stolecka, 2021. "Characteristics of Water Contaminants from Underground Coal Gasification (UCG) Process—Effect of Coal Properties and Gasification Pressure," Energies, MDPI, vol. 14(20), pages 1-12, October.
    4. Aleksander Frejowski & Jan Bondaruk & Adam Duda, 2021. "Challenges and Opportunities for End-of-Life Coal Mine Sites: Black-to-Green Energy Approach," Energies, MDPI, vol. 14(5), pages 1-18, March.
    5. Md M. Khan & Joseph P. Mmbaga & Ahad S. Shirazi & Japan Trivedi & Qingzia Liu & Rajender Gupta, 2015. "Modelling Underground Coal Gasification—A Review," Energies, MDPI, vol. 8(11), pages 1-66, November.
    6. Krzysztof Kapusta, 2021. "Effect of Lignite Properties on Its Suitability for the Implementation of Underground Coal Gasification (UCG) in Selected Deposits," Energies, MDPI, vol. 14(18), pages 1-11, September.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Ján Kačur & Marek Laciak & Milan Durdán & Patrik Flegner, 2023. "Investigation of Underground Coal Gasification in Laboratory Conditions: A Review of Recent Research," Energies, MDPI, vol. 16(17), pages 1-55, August.

    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. Zhen Dong & Haiyang Yi & Yufeng Zhao & Xinggang Wang & Tingxiang Chu & Junjie Xue & Hanqi Wu & Shanshan Chen & Mengyuan Zhang & Hao Chen, 2022. "Investigation of the Evolution of Stratum Fracture during the Cavity Expansion of Underground Coal Gasification," Energies, MDPI, vol. 15(19), pages 1-15, October.
    2. Milan Durdán & Marta Benková & Marek Laciak & Ján Kačur & Patrik Flegner, 2021. "Regression Models Utilization to the Underground Temperature Determination at Coal Energy Conversion," Energies, MDPI, vol. 14(17), pages 1-28, September.
    3. Jacek Borgulat & Katarzyna Ponikiewska & Łukasz Jałowiecki & Aleksandra Strugała-Wilczek & Grażyna Płaza, 2022. "Are Wetlands as an Integrated Bioremediation System Applicable for the Treatment of Wastewater from Underground Coal Gasification Processes?," Energies, MDPI, vol. 15(12), pages 1-19, June.
    4. Yuteng Xiao & Jihang Yin & Yifan Hu & Junzhe Wang & Hongsheng Yin & Honggang Qi, 2019. "Monitoring and Control in Underground Coal Gasification: Current Research Status and Future Perspective," Sustainability, MDPI, vol. 11(1), pages 1-14, January.
    5. Marek Laciak & Ján Kačur & Milan Durdán, 2022. "Modeling and Control of Energy Conversion during Underground Coal Gasification Process," Energies, MDPI, vol. 15(7), pages 1-6, March.
    6. Hao Chen & Yong Qin & Yanpeng Chen & Zhen Dong & Junjie Xue & Shanshan Chen & Mengyuan Zhang & Yufeng Zhao, 2023. "Quantitative Evaluation of Underground Coal Gasification Based on a CO 2 Gasification Agent," Energies, MDPI, vol. 16(19), pages 1-10, October.
    7. Ján Kačur & Marek Laciak & Milan Durdán & Patrik Flegner, 2023. "Investigation of Underground Coal Gasification in Laboratory Conditions: A Review of Recent Research," Energies, MDPI, vol. 16(17), pages 1-55, August.
    8. Xi Lin & Qingya Liu & Zhenyu Liu, 2018. "Estimation of Effective Diffusion Coefficient of O 2 in Ash Layer in Underground Coal Gasification by Thermogravimetric Apparatus," Energies, MDPI, vol. 11(2), pages 1-14, February.
    9. Stefan Zelenak & Erika Skvarekova & Andrea Senova & Gabriel Wittenberger, 2021. "The Usage of UCG Technology as Alternative to Reach Low-Carbon Energy," Energies, MDPI, vol. 14(13), pages 1-15, June.
    10. Christopher Otto & Thomas Kempka, 2015. "Thermo-Mechanical Simulations of Rock Behavior in Underground Coal Gasification Show Negligible Impact of Temperature-Dependent Parameters on Permeability Changes," Energies, MDPI, vol. 8(6), pages 1-28, June.
    11. Christopher Otto & Thomas Kempka, 2017. "Prediction of Steam Jacket Dynamics and Water Balances in Underground Coal Gasification," Energies, MDPI, vol. 10(6), pages 1-17, May.
    12. Tomasz Janoszek & Wojciech Masny, 2021. "CFD Simulations of Allothermal Steam Gasification Process for Hydrogen Production," Energies, MDPI, vol. 14(6), pages 1-28, March.
    13. Mohammadreza Shahbazi & Mehdi Najafi & Mohammad Fatehi Marji, 2019. "On the mitigating environmental aspects of a vertical well in underground coal gasification method," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 24(3), pages 373-398, March.
    14. Marc Bascompta & Lluís Sanmiquel & Carla Vintró & Mohammad Yousefian, 2022. "Corporate Social Responsibility Index for Mine Sites," Sustainability, MDPI, vol. 14(20), pages 1-24, October.
    15. Saulov, Dmitry N. & Plumb, Ovid A. & Klimenko, A.Y., 2010. "Flame propagation in a gasification channel," Energy, Elsevier, vol. 35(3), pages 1264-1273.
    16. Nakaten, Natalie & Schlüter, Ralph & Azzam, Rafig & Kempka, Thomas, 2014. "Development of a techno-economic model for dynamic calculation of cost of electricity, energy demand and CO2 emissions of an integrated UCG–CCS process," Energy, Elsevier, vol. 66(C), pages 779-790.
    17. Su, Fa-qiang & He, Xiao-long & Dai, Meng-jia & Yang, Jun-nan & Hamanaka, Akihiro & Yu, Yi-he & Li, Wen & Li, Jiao-yuan, 2023. "Estimation of the cavity volume in the gasification zone for underground coal gasification under different oxygen flow conditions," Energy, Elsevier, vol. 285(C).
    18. Jarosław Kaczmarek, 2022. "The Balance of Outlays and Effects of Restructuring Hard Coal Mining Companies in Terms of Energy Policy of Poland PEP 2040," Energies, MDPI, vol. 15(5), pages 1-30, March.
    19. Krzysztof Skrzypkowski & Krzysztof Zagórski & Anna Zagórska, 2021. "Determination of the Extent of the Rock Destruction Zones around a Gasification Channel on the Basis of Strength Tests of Sandstone and Claystone Samples Heated at High Temperatures up to 1200 °C and ," Energies, MDPI, vol. 14(20), pages 1-27, October.
    20. Natalie Nakaten & Thomas Kempka, 2019. "Techno-Economic Comparison of Onshore and Offshore Underground Coal Gasification End-Product Competitiveness," Energies, MDPI, vol. 12(17), pages 1-28, August.

    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:gam:jeners:v:15:y:2022:i:23:p:8824-:d:981424. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.