Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite
Апстракт
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.
Кључне речи:
moisture removal / low-rank coal / fluid bed / drying coefficientИзвор:
Thermal Science, 2016, 20, S167-S181Издавач:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
Финансирање / пројекти:
- Побољшање квалитета и технологије сагоревања домаћих лигнита у циљу повећања енергетске ефикасности и смањења емисије штетних материја из термоелектрана ЈП Електропривреда Србије (RS-MESTD-Technological Development (TD or TR)-33050)
- Смањење аерозагађења из термоелектрана у ЈП Електропривреда Србије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-42010)
DOI: 10.2298/TSCI150725172E
ISSN: 0354-9836
WoS: 000378584200016
Scopus: 2-s2.0-85082370747
Колекције
Институција/група
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 . .