Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite
Abstract
An overview of the current status of low-rank coal upgrading technologies is presented in the paper, particularly with respect to drying and dewatering procedures. In order to calculate the significant parameters of the moisture removal process, a model of convective coal drying in a fluid bed, based on the two-phase (bubbling) fluidization model proposed by Kunii and Levenspiel, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the particular coal variety addressed here (Kolubara lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat transfer mechanisms occurring in the suspension phase of the fluid bed. A completely new set of experimental data obtained has been successfully used to validate the model additionally.
Keywords:
moisture removal / low-rank coal / fluid bed / drying coefficientSource:
Thermal Science, 2016, 20, S167-S181Publisher:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
Funding / projects:
- Domestic Lignite Quality and Combustion Technology Enhancement for Energy Efficiency Increase and Reduction of Harmful Gases and Particulate Matter Emissions from Thermal Power Plants of Public Enterprise ”Electric Power Industry of Serbia” (RS-MESTD-Technological Development (TD or TR)-33050)
- Pollution Reduction from Thermal Power Plants of the Public Enterprise “Electric Power Industry of Serbia” (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-42010)
DOI: 10.2298/TSCI150725172E
ISSN: 0354-9836
WoS: 000378584200016
Scopus: 2-s2.0-85082370747
Collections
Institution/Community
Mašinski fakultetTY - JOUR AU - Erić, Milić D. AU - Stakić, Milan B. AU - Banjac, Miloš PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2428 AB - An overview of the current status of low-rank coal upgrading technologies is presented in the paper, particularly with respect to drying and dewatering procedures. In order to calculate the significant parameters of the moisture removal process, a model of convective coal drying in a fluid bed, based on the two-phase (bubbling) fluidization model proposed by Kunii and Levenspiel, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the particular coal variety addressed here (Kolubara lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat transfer mechanisms occurring in the suspension phase of the fluid bed. A completely new set of experimental data obtained has been successfully used to validate the model additionally. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite EP - S181 SP - S167 VL - 20 DO - 10.2298/TSCI150725172E ER -
@article{ author = "Erić, Milić D. and Stakić, Milan B. and Banjac, Miloš", year = "2016", abstract = "An overview of the current status of low-rank coal upgrading technologies is presented in the paper, particularly with respect to drying and dewatering procedures. In order to calculate the significant parameters of the moisture removal process, a model of convective coal drying in a fluid bed, based on the two-phase (bubbling) fluidization model proposed by Kunii and Levenspiel, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the particular coal variety addressed here (Kolubara lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat transfer mechanisms occurring in the suspension phase of the fluid bed. A completely new set of experimental data obtained has been successfully used to validate the model additionally.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite", pages = "S181-S167", volume = "20", doi = "10.2298/TSCI150725172E" }
Erić, M. D., Stakić, M. B.,& Banjac, M.. (2016). Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 20, S167-S181. https://doi.org/10.2298/TSCI150725172E
Erić MD, Stakić MB, Banjac M. Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite. in Thermal Science. 2016;20:S167-S181. doi:10.2298/TSCI150725172E .
Erić, Milić D., Stakić, Milan B., Banjac, Miloš, "Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite" in Thermal Science, 20 (2016):S167-S181, https://doi.org/10.2298/TSCI150725172E . .