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Investigation of technical and economic aspects of pre-dried lignite utilisation in a modern lignite power plant towards zero CO2 emissions

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  • Agraniotis, Michalis
  • Koumanakos, Antonis
  • Doukelis, Aggelos
  • Karellas, Sotirios
  • Kakaras, Emmanuel

Abstract

The pre-drying technology is expected to play an important role in the next generation of brown coal power plants. The integration of the fluidised bed drying system with internal heat utilization (WTA technology) is estimated to bring an efficiency increase of up to 6 percentage points in future brown coal power plants compared to the current state of the art. Furthermore, brown coal pre-drying is considered as an indispensable part in future oxy-fuel brown coal fired boilers. In the present work the potential utilisation of brown coal pre-drying is evaluated based on a realistic reference case scenario. Thermal cycle calculations and economic feasibility studies are carried out for a modern Greek power plant, taken as reference case and for two dry lignite firing cases. In the first co-firing scenario investigated a co-firing share of dry lignite to a thermal share of 25% is regarded. Furthermore, the configuration of a brown coal boiler fired 100% with pre-dried lignite is examined. For all cases, the main economic parameters are calculated including investment costs, cost of electricity, payback period, return on investment. The effect of the CO2 allowances price on the economic feasibility of the considered scenarios is also evaluated.

Suggested Citation

  • Agraniotis, Michalis & Koumanakos, Antonis & Doukelis, Aggelos & Karellas, Sotirios & Kakaras, Emmanuel, 2012. "Investigation of technical and economic aspects of pre-dried lignite utilisation in a modern lignite power plant towards zero CO2 emissions," Energy, Elsevier, vol. 45(1), pages 134-141.
    • Handle: RePEc:eee:energy:v:45:y:2012:i:1:p:134-141
    DOI: 10.1016/j.energy.2012.01.063
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    Cited by:

    1. Han, Xiaoqu & Liu, Ming & Wang, Jinshi & Yan, Junjie & Liu, Jiping & Xiao, Feng, 2014. "Simulation study on lignite-fired power system integrated with flue gas drying and waste heat recovery – Performances under variable power loads coupled with off-design parameters," Energy, Elsevier, vol. 76(C), pages 406-418.
    2. Li, Zixiang & Miao, Zhengqing & Zhou, Yan & Wen, Shurong & Li, Jiangtao, 2018. "Influence of increased primary air ratio on boiler performance in a 660 MW brown coal boiler," Energy, Elsevier, vol. 152(C), pages 804-817.
    3. Janusz Kotowicz & Sebastian Michalski & Mateusz Brzęczek, 2019. "The Characteristics of a Modern Oxy-Fuel Power Plant," Energies, MDPI, vol. 12(17), pages 1-34, September.
    4. Liu, Ming & Yan, JunJie & Chong, DaoTong & Liu, JiPing & Wang, JinShi, 2013. "Thermodynamic analysis of pre-drying methods for pre-dried lignite-fired power plant," Energy, Elsevier, vol. 49(C), pages 107-118.
    5. Li, Zixiang & Miao, Zhengqing & Shen, Xusheng & Li, Jiangtao, 2018. "Effects of momentum ratio and velocity difference on combustion performance in lignite-fired pulverized boiler," Energy, Elsevier, vol. 165(PA), pages 825-839.
    6. Liu, Ming & Wu, Dongyin & Xiao, Feng & Yan, JunJie, 2015. "A novel lignite-fired power plant integrated with a vacuum dryer: System design and thermodynamic analysis," Energy, Elsevier, vol. 82(C), pages 968-975.
    7. Atsonios, K. & Violidakis, I. & Sfetsioris, K. & Rakopoulos, D.C. & Grammelis, P. & Kakaras, E., 2016. "Pre-dried lignite technology implementation in partial load/low demand cases for flexibility enhancement," Energy, Elsevier, vol. 96(C), pages 427-436.
    8. Dios, M. & Souto, J.A. & Casares, J.J., 2013. "Experimental development of CO2, SO2 and NOx emission factors for mixed lignite and subbituminous coal-fired power plant," Energy, Elsevier, vol. 53(C), pages 40-51.
    9. Pettinau, Alberto & Ferrara, Francesca & Amorino, Carlo, 2013. "Combustion vs. gasification for a demonstration CCS (carbon capture and storage) project in Italy: A techno-economic analysis," Energy, Elsevier, vol. 50(C), pages 160-169.
    10. Višković, Alfredo & Franki, Vladimir & Valentić, Vladimir, 2014. "CCS (carbon capture and storage) investment possibility in South East Europe: A case study for Croatia," Energy, Elsevier, vol. 70(C), pages 325-337.
    11. Zbigniew Plutecki & Paweł Sattler & Krystian Ryszczyk & Anna Duczkowska & Stanisław Anweiler, 2020. "Thermokinetics of Brown Coal during a Fluidized Drying Process," Energies, MDPI, vol. 13(3), pages 1-16, February.
    12. Han, Xiaoqu & Liu, Ming & Zhai, Mengxu & Chong, Daotong & Yan, Junjie & Xiao, Feng, 2015. "Investigation on the off-design performances of flue gas pre-dried lignite-fired power system integrated with waste heat recovery at variable external working conditions," Energy, Elsevier, vol. 90(P2), pages 1743-1758.
    13. Halina Pawlak–Kruczek & Michał Czerep & Lukasz Niedzwiecki & Emmanouil Karampinis & Ioannis Violidakis & Ioannis Avagianos & Panagiotis Grammelis, 2019. "Drying of Lignite of Various Origins in a Pilot Scale Toroidal Fluidized Bed Dryer using Low Quality Heat," Energies, MDPI, vol. 12(7), pages 1-22, March.
    14. Pawlak-Kruczek, Halina & Niedźwiecki, Łukasz & Ostrycharczyk, Michał & Czerep, Michał & Plutecki, Zbigniew, 2019. "Potential and methods for increasing the flexibility and efficiency of the lignite fired power unit, using integrated lignite drying," Energy, Elsevier, vol. 181(C), pages 1142-1151.
    15. Fu, Pengbo & Yu, Hao & Li, Qiqi & Cheng, Tingting & Zhang, Fangzheng & Yang, Tao & Huang, Yuan & Li, Jianping & Fang, Xiangchen & Xiu, Guangli & Wang, Hualin, 2022. "Cyclone rotational drying of lignite based on particle high-speed self-rotation: Lower carrier gas temperature and shorter residence time," Energy, Elsevier, vol. 244(PB).
    16. Cormos, Calin-Cristian & Vatopoulos, Konstantinos & Tzimas, Evangelos, 2013. "Assessment of the consumption of water and construction materials in state-of-the-art fossil fuel power generation technologies involving CO2 capture," Energy, Elsevier, vol. 51(C), pages 37-49.

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