IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v104y2013icp653-665.html
   My bibliography  Save this article

CFD modeling of oxy-coal combustion: Prediction of burnout, volatile and NO precursors release

Author

Listed:
  • Álvarez, L.
  • Gharebaghi, M.
  • Jones, J.M.
  • Pourkashanian, M.
  • Williams, A.
  • Riaza, J.
  • Pevida, C.
  • Pis, J.J.
  • Rubiera, F.

Abstract

The devolatilisation step of coal is a vital stage in both air–coal and oxy-coal combustion and there is interest in whether methods of estimating the reaction parameters are similar for both cases. A network pyrolysis model, the FG-DVC (Functional Group-Depolymerisation Vaporisation Cross-linking) code was employed to evaluate the effect of temperature (1273–1773K) and heating rate (104–106K/s) on the devolatilisation parameters of two coals of different rank. The products distribution between char and volatiles, and volatiles and NH3/HCN release kinetics were also determined. In order to assess the accuracy of the FG-DVC predictions, the values for nitrogen distribution and devolatilisation kinetics obtained for a temperature of 1273K and a heating rate of 105K/s were included as inputs in a Computational Fluid Dynamics (CFD) model for oxy-coal combustion in an entrained flow reactor (EFR). CFD simulations with the programme default devolatilisation kinetics were performed. The oxygen content in oxy-firing conditions ranged between 21% and 35%, and air-firing conditions were also employed as a reference. The experimental coals burnouts and oxygen concentrations from the EFR experiments were employed to test the accuracy of the CFD model. The temperature profiles, burning rates, char burnout and NO emissions during coal combustion in both air and O2/CO2 atmospheres were predicted. The predictions obtained when using the CFD model with FG-DVC coal devolatilisation kinetics were much closer to the experimental values than the predictions obtained with the ANSYS Fluent (version 12) program default kinetics. The predicted NO emissions under oxy-firing conditions were in good agreement with the experimental values.

Suggested Citation

  • Álvarez, L. & Gharebaghi, M. & Jones, J.M. & Pourkashanian, M. & Williams, A. & Riaza, J. & Pevida, C. & Pis, J.J. & Rubiera, F., 2013. "CFD modeling of oxy-coal combustion: Prediction of burnout, volatile and NO precursors release," Applied Energy, Elsevier, vol. 104(C), pages 653-665.
    • Handle: RePEc:eee:appene:v:104:y:2013:i:c:p:653-665
    DOI: 10.1016/j.apenergy.2012.11.058
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S030626191200863X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2012.11.058?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. Riaza, J. & Álvarez, L. & Gil, M.V. & Pevida, C. & Pis, J.J. & Rubiera, F., 2011. "Effect of oxy-fuel combustion with steam addition on coal ignition and burnout in an entrained flow reactor," Energy, Elsevier, vol. 36(8), pages 5314-5319.
    2. Kunze, Christian & Spliethoff, Hartmut, 2012. "Assessment of oxy-fuel, pre- and post-combustion-based carbon capture for future IGCC plants," Applied Energy, Elsevier, vol. 94(C), pages 109-116.
    3. Holtmeyer, Melissa L. & Kumfer, Benjamin M. & Axelbaum, Richard L., 2012. "Effects of biomass particle size during cofiring under air-fired and oxyfuel conditions," Applied Energy, Elsevier, vol. 93(C), pages 606-613.
    4. Hu, Yukun & Yan, Jinyue, 2012. "Characterization of flue gas in oxy-coal combustion processes for CO2 capture," Applied Energy, Elsevier, vol. 90(1), pages 113-121.
    5. Gil, M.V. & Riaza, J. & Álvarez, L. & Pevida, C. & Pis, J.J. & Rubiera, F., 2012. "Oxy-fuel combustion kinetics and morphology of coal chars obtained in N2 and CO2 atmospheres in an entrained flow reactor," Applied Energy, Elsevier, vol. 91(1), pages 67-74.
    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. Liu, Xingrang & Bansal, R.C., 2014. "Integrating multi-objective optimization with computational fluid dynamics to optimize boiler combustion process of a coal fired power plant," Applied Energy, Elsevier, vol. 130(C), pages 658-669.
    2. Wen, Xu & Luo, Kun & Luo, Yujuan & Kassem, Hassan I. & Jin, Hanhui & Fan, Jianren, 2016. "Large eddy simulation of a semi-industrial scale coal furnace using non-adiabatic three-stream flamelet/progress variable model," Applied Energy, Elsevier, vol. 183(C), pages 1086-1097.
    3. Cai, Yongtie & Tay, Kunlin & Zheng, Zhimin & Yang, Wenming & Wang, Hui & Zeng, Guang & Li, Zhiwang & Keng Boon, Siah & Subbaiah, Prabakaran, 2018. "Modeling of ash formation and deposition processes in coal and biomass fired boilers: A comprehensive review," Applied Energy, Elsevier, vol. 230(C), pages 1447-1544.
    4. Si, Junping & Liu, Xiaowei & Xu, Minghou & Sheng, Lei & Zhou, Zijian & Wang, Chao & Zhang, Yang & Seo, Yong-Chil, 2014. "Effect of kaolin additive on PM2.5 reduction during pulverized coal combustion: Importance of sodium and its occurrence in coal," Applied Energy, Elsevier, vol. 114(C), pages 434-444.
    5. Xu, Mingxin & Li, Shiyuan & Wu, Yinghai & Jia, Lufei & Lu, Qinggang, 2017. "The characteristics of recycled NO reduction over char during oxy-fuel fluidized bed combustion," Applied Energy, Elsevier, vol. 190(C), pages 553-562.
    6. Yin, Chungen & Yan, Jinyue, 2016. "Oxy-fuel combustion of pulverized fuels: Combustion fundamentals and modeling," Applied Energy, Elsevier, vol. 162(C), pages 742-762.
    7. Oboirien, B.O. & Thulari, V. & North, B.C., 2014. "Major and trace elements in coal bottom ash at different oxy coal combustion conditions," Applied Energy, Elsevier, vol. 129(C), pages 207-216.
    8. Álvarez, L. & Yin, C. & Riaza, J. & Pevida, C. & Pis, J.J. & Rubiera, F., 2013. "Oxy-coal combustion in an entrained flow reactor: Application of specific char and volatile combustion and radiation models for oxy-firing conditions," Energy, Elsevier, vol. 62(C), pages 255-268.
    9. Li, Shiyuan & Xu, Mingxin & Jia, Lufei & Tan, Li & Lu, Qinggang, 2016. "Influence of operating parameters on N2O emission in O2/CO2 combustion with high oxygen concentration in circulating fluidized bed," Applied Energy, Elsevier, vol. 173(C), pages 197-209.
    10. Dai, C. & Cai, X.H. & Cai, Y.P. & Huang, G.H., 2014. "A simulation-based fuzzy possibilistic programming model for coal blending management with consideration of human health risk under uncertainty," Applied Energy, Elsevier, vol. 133(C), pages 1-13.
    11. Kuang, Min & Li, Zhengqi & Liu, Chunlong & Zhu, Qunyi, 2013. "Experimental study on combustion and NOx emissions for a down-fired supercritical boiler with multiple-injection multiple-staging technology without overfire air," Applied Energy, Elsevier, vol. 106(C), pages 254-261.
    12. Yang, Xin & Clements, Alastair & Szuhánszki, János & Huang, Xiaohong & Farias Moguel, Oscar & Li, Jia & Gibbins, Jon & Liu, Zhaohui & Zheng, Chuguang & Ingham, Derek & Ma, Lin & Nimmo, Bill & Pourkash, 2018. "Prediction of the radiative heat transfer in small and large scale oxy-coal furnaces," Applied Energy, Elsevier, vol. 211(C), pages 523-537.
    13. Hu, Yukun & Li, Hailong & Yan, Jinyue, 2014. "Numerical investigation of heat transfer characteristics in utility boilers of oxy-coal combustion," Applied Energy, Elsevier, vol. 130(C), pages 543-551.
    14. Granados, D.A. & Chejne, F. & Mejía, J.M., 2015. "Oxy-fuel combustion as an alternative for increasing lime production in rotary kilns," Applied Energy, Elsevier, vol. 158(C), pages 107-117.

    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. Xu, Mingxin & Li, Shiyuan & Wu, Yinghai & Jia, Lufei & Lu, Qinggang, 2017. "The characteristics of recycled NO reduction over char during oxy-fuel fluidized bed combustion," Applied Energy, Elsevier, vol. 190(C), pages 553-562.
    2. Yin, Chungen & Yan, Jinyue, 2016. "Oxy-fuel combustion of pulverized fuels: Combustion fundamentals and modeling," Applied Energy, Elsevier, vol. 162(C), pages 742-762.
    3. Mostafa, Mohamed E. & He, Limo & Xu, Jun & Hu, Song & Wang, Yi & Su, Sheng & Hu, Xun & Elsayed, Saad A. & Xiang, Jun, 2019. "Investigating the effect of integrated CO2 and H2O on the reactivity and kinetics of biomass pellets oxy-steam combustion using new double parallel volumetric model (DVM)," Energy, Elsevier, vol. 179(C), pages 343-357.
    4. Álvarez, L. & Yin, C. & Riaza, J. & Pevida, C. & Pis, J.J. & Rubiera, F., 2013. "Oxy-coal combustion in an entrained flow reactor: Application of specific char and volatile combustion and radiation models for oxy-firing conditions," Energy, Elsevier, vol. 62(C), pages 255-268.
    5. Zhang, Minkai & Guo, Yincheng, 2013. "Rate based modeling of absorption and regeneration for CO2 capture by aqueous ammonia solution," Applied Energy, Elsevier, vol. 111(C), pages 142-152.
    6. Li, Shiyuan & Li, Haoyu & Li, Wei & Xu, Mingxin & Eddings, Eric G. & Ren, Qiangqiang & Lu, Qinggang, 2017. "Coal combustion emission and ash formation characteristics at high oxygen concentration in a 1MWth pilot-scale oxy-fuel circulating fluidized bed," Applied Energy, Elsevier, vol. 197(C), pages 203-211.
    7. Oh, Se-Young & Binns, Michael & Cho, Habin & Kim, Jin-Kuk, 2016. "Energy minimization of MEA-based CO2 capture process," Applied Energy, Elsevier, vol. 169(C), pages 353-362.
    8. Chi, Chung-Cheng & Lin, Ta-Hui, 2013. "Oxy-oil combustion characteristics of an existing furnace," Applied Energy, Elsevier, vol. 102(C), pages 923-930.
    9. Chowdhury, A.S.M. Arifur & Bugarin, Luz & Badhan, Antara & Choudhuri, Ahsan & Love, Norman, 2016. "Thermodynamic analysis of a directly heated oxyfuel supercritical power system," Applied Energy, Elsevier, vol. 179(C), pages 261-271.
    10. Gil, María V. & Riaza, Juan & Álvarez, Lucía & Pevida, Covadonga & Rubiera, Fernando, 2015. "Biomass devolatilization at high temperature under N2 and CO2: Char morphology and reactivity," Energy, Elsevier, vol. 91(C), pages 655-662.
    11. Pan, Ming & Aziz, Farah & Li, Baohong & Perry, Simon & Zhang, Nan & Bulatov, Igor & Smith, Robin, 2016. "Application of optimal design methodologies in retrofitting natural gas combined cycle power plants with CO2 capture," Applied Energy, Elsevier, vol. 161(C), pages 695-706.
    12. Yi, Baojun & Zhang, Liqi & Huang, Fang & Mao, Zhihui & Zheng, Chuguang, 2014. "Effect of H2O on the combustion characteristics of pulverized coal in O2/CO2 atmosphere," Applied Energy, Elsevier, vol. 132(C), pages 349-357.
    13. Wu, Hai-bo & Xu, Ming-xin & Li, Yan-bing & Wu, Jin-hua & Shen, Jian-chong & Liao, Haiyan, 2020. "Experimental research on the process of compression and purification of CO2 in oxy-fuel combustion," Applied Energy, Elsevier, vol. 259(C).
    14. Xu, Mingxin & Li, Shiyuan & Wu, Yinghai & Jia, Lufei, 2017. "Reduction of recycled NO over char during oxy-fuel fluidized bed combustion: Effects of operating parameters," Applied Energy, Elsevier, vol. 199(C), pages 310-322.
    15. Xu, Jun & Su, Sheng & Sun, Zhijun & Qing, Mengxia & Xiong, Zhe & Wang, Yi & Jiang, Long & Hu, Song & Xiang, Jun, 2016. "Effects of steam and CO2 on the characteristics of chars during devolatilization in oxy-steam combustion process," Applied Energy, Elsevier, vol. 182(C), pages 20-28.
    16. Mao, Zhihui & Zhang, Liqi & Zhu, Xinyang & Pan, Cong & Yi, Baojun & Zheng, Chuguang, 2016. "Modeling of an oxy-coal flame under a steam-rich atmosphere," Applied Energy, Elsevier, vol. 161(C), pages 112-123.
    17. Gil, M.V. & Riaza, J. & Álvarez, L. & Pevida, C. & Pis, J.J. & Rubiera, F., 2012. "Kinetic models for the oxy-fuel combustion of coal and coal/biomass blend chars obtained in N2 and CO2 atmospheres," Energy, Elsevier, vol. 48(1), pages 510-518.
    18. Kobayashi, Makoto & Akiho, Hiroyuki & Nakao, Yoshinobu, 2015. "Performance evaluation of porous sodium aluminate sorbent for halide removal process in oxy-fuel IGCC power generation plant," Energy, Elsevier, vol. 92(P3), pages 320-327.
    19. Lee, Sung-Wook & Park, Jong-Soo & Lee, Chun-Boo & Lee, Dong-Wook & Kim, Hakjoo & Ra, Ho Won & Kim, Sung-Hyun & Ryi, Shin-Kun, 2014. "H2 recovery and CO2 capture after water–gas shift reactor using synthesis gas from coal gasification," Energy, Elsevier, vol. 66(C), pages 635-642.
    20. Meng, Wenliang & Wang, Dongliang & Zhou, Huairong & Yang, Yong & Li, Hongwei & Liao, Zuwei & Yang, Siyu & Hong, Xiaodong & Li, Guixian, 2023. "Carbon dioxide from oxy-fuel coal-fired power plant integrated green ammonia for urea synthesis: Process modeling, system analysis, and techno-economic evaluation," Energy, Elsevier, vol. 278(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:appene:v:104:y:2013:i:c:p:653-665. 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.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    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.