An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies
Апстракт
Despite benefiting from vast fuel reserves, combustion of low-rank coals is commonly characterized by low thermal efficiency and high pollutant emissions, partly due to high moisture content of the coals in question. Thus, removal of moisture from low-rank coals is deemed an important quality upgrading method. The paper provides an overview of the current status of low-rank coal upgrading technologies, particularly with respect to utilization of drying and dewatering procedures. In order to examine the influence of relevant parameters on the moisture removal process, a model of convective coal drying in a packed, as well as in a fluid bed combustion arrangement, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the coal variety addressed herein (lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat tran...sfer mechanisms occurring in the packed bed. Similar two-phase fluidization model has been validated for different types of biomaterials. (C) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
Кључне речи:
Coal drying / Thermal treatment / Moisture transfer / Fluid bed / ModelingИзвор:
Chemical Engineering Research and Design, 2014, 92, 11, 2383-2395Финансирање / 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)
- Развој и унапређење технологија за енергетски ефикасно коришћење више форми пољопривредне и шумске биомасе на еколошки прихватљив начин, уз могућност когенерације (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-42011)
DOI: 10.1016/j.cherd.2014.02.032
ISSN: 0263-8762; 1744-3563
WoS: 000345725500032
Scopus: 2-s2.0-84912564847
Колекције
Институција/група
VinčaTY - JOUR AU - Stakic, Milan AU - Cvetinović, Dejan AU - Škobalj, Predrag D. AU - Spasojević, Vuk D. PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/243 AB - Despite benefiting from vast fuel reserves, combustion of low-rank coals is commonly characterized by low thermal efficiency and high pollutant emissions, partly due to high moisture content of the coals in question. Thus, removal of moisture from low-rank coals is deemed an important quality upgrading method. The paper provides an overview of the current status of low-rank coal upgrading technologies, particularly with respect to utilization of drying and dewatering procedures. In order to examine the influence of relevant parameters on the moisture removal process, a model of convective coal drying in a packed, as well as in a fluid bed combustion arrangement, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the coal variety addressed herein (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 packed bed. Similar two-phase fluidization model has been validated for different types of biomaterials. (C) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved. T2 - Chemical Engineering Research and Design T1 - An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies VL - 92 IS - 11 SP - 2383 EP - 2395 DO - 10.1016/j.cherd.2014.02.032 ER -
@article{ author = "Stakic, Milan and Cvetinović, Dejan and Škobalj, Predrag D. and Spasojević, Vuk D.", year = "2014", abstract = "Despite benefiting from vast fuel reserves, combustion of low-rank coals is commonly characterized by low thermal efficiency and high pollutant emissions, partly due to high moisture content of the coals in question. Thus, removal of moisture from low-rank coals is deemed an important quality upgrading method. The paper provides an overview of the current status of low-rank coal upgrading technologies, particularly with respect to utilization of drying and dewatering procedures. In order to examine the influence of relevant parameters on the moisture removal process, a model of convective coal drying in a packed, as well as in a fluid bed combustion arrangement, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the coal variety addressed herein (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 packed bed. Similar two-phase fluidization model has been validated for different types of biomaterials. (C) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.", journal = "Chemical Engineering Research and Design", title = "An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies", volume = "92", number = "11", pages = "2383-2395", doi = "10.1016/j.cherd.2014.02.032" }
Stakic, M., Cvetinović, D., Škobalj, P. D.,& Spasojević, V. D.. (2014). An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies. in Chemical Engineering Research and Design, 92(11), 2383-2395. https://doi.org/10.1016/j.cherd.2014.02.032
Stakic M, Cvetinović D, Škobalj PD, Spasojević VD. An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies. in Chemical Engineering Research and Design. 2014;92(11):2383-2395. doi:10.1016/j.cherd.2014.02.032 .
Stakic, Milan, Cvetinović, Dejan, Škobalj, Predrag D., Spasojević, Vuk D., "An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies" in Chemical Engineering Research and Design, 92, no. 11 (2014):2383-2395, https://doi.org/10.1016/j.cherd.2014.02.032 . .