IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i20p6533-d654061.html
   My bibliography  Save this article

Characteristics of Water Contaminants from Underground Coal Gasification (UCG) Process—Effect of Coal Properties and Gasification Pressure

Author

Listed:
  • Magdalena Pankiewicz-Sperka

    (Department of Energy Saving and Air Protection, Główny Instytut Górnictwa, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland)

  • Krzysztof Kapusta

    (Department of Energy Saving and Air Protection, Główny Instytut Górnictwa, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland)

  • Wioleta Basa

    (Department of Energy Saving and Air Protection, Główny Instytut Górnictwa, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland)

  • Katarzyna Stolecka

    (Department of Power Engineering and Turbomachinery, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland)

Abstract

One of the most important issues during UCG process is wastewater production and treatment. Condensed gasification wastewater is contaminated by many hazardous compounds. The composition of the generated UCG-derived wastewater may vary depending on the type of gasified coal and conditions of the gasification process. The main purpose of this study was a qualitative and quantitative characterization of the UCG wastewater produced during four different UCG experiments. Experiments were conducted using semi-anthracite and bituminous coal samples at two distinct pressures, i.e., 20 and 40 bar. The conducted studies revealed significant relationships between the physicochemical composition of the wastewater and the coal properties as well as the gasification pressure. The strongest impact is noticeable in the case of organic pollutants, especially phenols, BTEX and PAH’s. The most abundant group of pollutants were phenols. Conducted studies showed significantly higher concentration levels for bituminous coal: 29.25–49.5 mg/L whereas for semi-anthracite effluents these concentrations were in much lower range 2.1–29.7 mg/L. The opposite situation occurs for BTEX, higher concentrations were in wastewater from semi-anthracite gasification: 5483.1–1496.7 µg/L, while in samples from bituminous coal gasification average BTEX concentrations were: 2514.3–1354.4 µg/L. A similar relationship occurs for the PAH’s concentrations. The higher values were in case of wastewater from semi-anthracite coal experiments and were in range 362–1658 µg/L while from bituminous coal gasification PAH’s values are in lower ranges 407–1090 µg/L. The studies conducted have shown that concentrations of phenols, BTEX and PAH’s decrease with increasing pressure. Pearson’s correlation analysis was performed to enhance the interpretation of the obtained experimental data and showed a very strong relationship between three parameters: phenols, volatile phenols and COD cr .

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6533-:d:654061
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/20/6533/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/20/6533/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. 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.
    2. Khadse, Anil & Qayyumi, Mohammed & Mahajani, Sanjay & Aghalayam, Preeti, 2007. "Underground coal gasification: A new clean coal utilization technique for India," Energy, Elsevier, vol. 32(11), pages 2061-2071.
    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. 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.
    2. 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.
    3. 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.
    4. Yanpeng Chen & Tianduoyi Wang & Jinhua Zhang & Mengyuan Zhang & Junjie Xue & Juntai Shi & Yongshang Kang & Shengjie Li, 2022. "Simulation of Water Influx and Gasified Gas Transport during Underground Coal Gasification with Controlled Retracting Injection Point Technology," Energies, MDPI, vol. 15(11), pages 1-29, May.
    5. 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.

    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. Verma, Aman & Kumar, Amit, 2015. "Life cycle assessment of hydrogen production from underground coal gasification," Applied Energy, Elsevier, vol. 147(C), pages 556-568.
    2. Gupta, Saurabh & De, Santanu, 2022. "An experimental investigation of high-ash coal gasification in a pilot-scale bubbling fluidized bed reactor," Energy, Elsevier, vol. 244(PB).
    3. Saulov, Dmitry N. & Plumb, Ovid A. & Klimenko, A.Y., 2010. "Flame propagation in a gasification channel," Energy, Elsevier, vol. 35(3), pages 1264-1273.
    4. Zhong, Qiumeng & Zhang, Zhihe & Wang, Heming & Zhang, Xu & Wang, Yao & Wang, Peng & Ma, Fengmei & Yue, Qiang & Du, Tao & Chen, Wei-Qiang & Liang, Sai, 2023. "Incorporating scarcity into footprints reveals diverse supply chain hotspots for global fossil fuel management," Applied Energy, Elsevier, vol. 349(C).
    5. Prabu, V., 2015. "Integration of in-situ CO2-oxy coal gasification with advanced power generating systems performing in a chemical looping approach of clean combustion," Applied Energy, Elsevier, vol. 140(C), pages 1-13.
    6. Karol Kostúr & Marek Laciak & Milan Durdan, 2018. "Some Influences of Underground Coal Gasification on the Environment," Sustainability, MDPI, vol. 10(5), pages 1-31, May.
    7. Garg, Amit & Shukla, P.R., 2009. "Coal and energy security for India: Role of carbon dioxide (CO2) capture and storage (CCS)," Energy, Elsevier, vol. 34(8), pages 1032-1041.
    8. Kumari, Geeta & Vairakannu, Prabu, 2018. "CO2-air based two stage gasification of low ash and high ash Indian coals in the context of underground coal gasification," Energy, Elsevier, vol. 143(C), pages 822-832.
    9. Akihiro Hamanaka & Fa-qiang Su & Ken-ichi Itakura & Kazuhiro Takahashi & Jun-ichi Kodama & Gota Deguchi, 2017. "Effect of Injection Flow Rate on Product Gas Quality in Underground Coal Gasification (UCG) Based on Laboratory Scale Experiment: Development of Co-Axial UCG System," Energies, MDPI, vol. 10(2), pages 1-11, February.
    10. Eftekhari, Ali Akbar & Van Der Kooi, Hedzer & Bruining, Hans, 2012. "Exergy analysis of underground coal gasification with simultaneous storage of carbon dioxide," Energy, Elsevier, vol. 45(1), pages 729-745.
    11. Verma, Aman & Olateju, Babatunde & Kumar, Amit, 2015. "Greenhouse gas abatement costs of hydrogen production from underground coal gasification," Energy, Elsevier, vol. 85(C), pages 556-568.
    12. Singh, A.K. & Goerke, U.-J. & Kolditz, O., 2011. "Numerical simulation of non-isothermal compositional gas flow: Application to carbon dioxide injection into gas reservoirs," Energy, Elsevier, vol. 36(5), pages 3446-3458.
    13. 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.
    14. 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.
    15. Li, Xin & Tian, Jijun & Ju, Yiwen & Chen, Yanpeng, 2022. "Permeability variations of lignite and bituminous coals under elevated pyrolysis temperatures (35–600 °C): An experimental study," Energy, Elsevier, vol. 254(PA).
    16. Fa-qiang Su & Akihiro Hamanaka & Ken-ichi Itakura & Gota Deguchi & Wenyan Zhang & Hua Nan, 2018. "Evaluation of a Compact Coaxial Underground Coal Gasification System Inside an Artificial Coal Seam," Energies, MDPI, vol. 11(4), pages 1-11, April.
    17. Shafiee, Shahriar & Topal, Erkan, 2009. "When will fossil fuel reserves be diminished?," Energy Policy, Elsevier, vol. 37(1), pages 181-189, January.
    18. Oleg Bazaluk & Vasyl Lozynskyi & Volodymyr Falshtynskyi & Pavlo Saik & Roman Dychkovskyi & Edgar Cabana, 2021. "Experimental Studies of the Effect of Design and Technological Solutions on the Intensification of an Underground Coal Gasification Process," Energies, MDPI, vol. 14(14), pages 1-18, July.
    19. Ding, Kangle & Zhang, Changmin, 2017. "Interactions between organic nitrogen and inorganic matter in the pyrolysis zone of underground coal gasification: Insights from controlled pyrolysis experiments," Energy, Elsevier, vol. 135(C), pages 279-293.
    20. Daggupati, Sateesh & Mandapati, Ramesh N. & Mahajani, Sanjay M. & Ganesh, Anuradda & Mathur, D.K. & Sharma, R.K. & Aghalayam, Preeti, 2010. "Laboratory studies on combustion cavity growth in lignite coal blocks in the context of underground coal gasification," Energy, Elsevier, vol. 35(6), pages 2374-2386.

    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:14:y:2021:i:20:p:6533-:d:654061. 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.