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Development of the Process Model and Optimal Drying Conditions of Biomass Power Plants

[Image: see text] An empty fruit bunch (EFB) is a byproduct of the palm oil production process with an undried moisture content of 60–70%, which is too high for use as direct combustion fuel. Drying processes are generally considered essential for the recent use of EFBs as power plant fuels because...

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Autores principales: Han, Jaechan, Choi, Yeongryeol, Kim, Junghwan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7034000/
https://www.ncbi.nlm.nih.gov/pubmed/32095704
http://dx.doi.org/10.1021/acsomega.9b03557
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author Han, Jaechan
Choi, Yeongryeol
Kim, Junghwan
author_facet Han, Jaechan
Choi, Yeongryeol
Kim, Junghwan
author_sort Han, Jaechan
collection PubMed
description [Image: see text] An empty fruit bunch (EFB) is a byproduct of the palm oil production process with an undried moisture content of 60–70%, which is too high for use as direct combustion fuel. Drying processes are generally considered essential for the recent use of EFBs as power plant fuels because their high moisture content decreases the boiler efficiency. The lower moisture content of dried EFBs increases the heating value and boiler efficiency but creates a trade-off with the energy required for the drying process. This study developed an EFB-based 10 MW power plant model by integrating economic evaluations in order to obtain optimal drying conditions. A hot air dryer was used in the drying process. The EFB evaporation behavior was predicted by reflecting the drying kinetics of EFBs in Aspen Plus. The optimum drying conditions were found to be a steam recirculation ratio of 0.25 and drying time of 23 min, creating dried EFBs with a 9.91% moisture content, which reduced costs by 5.48% relative to the undried base scenario. In addition, the developed model was compared to the drying process of a real power plant currently under construction in Indonesia. This drying process reduces the EFB moisture content from 48 to 20%.
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spelling pubmed-70340002020-02-24 Development of the Process Model and Optimal Drying Conditions of Biomass Power Plants Han, Jaechan Choi, Yeongryeol Kim, Junghwan ACS Omega [Image: see text] An empty fruit bunch (EFB) is a byproduct of the palm oil production process with an undried moisture content of 60–70%, which is too high for use as direct combustion fuel. Drying processes are generally considered essential for the recent use of EFBs as power plant fuels because their high moisture content decreases the boiler efficiency. The lower moisture content of dried EFBs increases the heating value and boiler efficiency but creates a trade-off with the energy required for the drying process. This study developed an EFB-based 10 MW power plant model by integrating economic evaluations in order to obtain optimal drying conditions. A hot air dryer was used in the drying process. The EFB evaporation behavior was predicted by reflecting the drying kinetics of EFBs in Aspen Plus. The optimum drying conditions were found to be a steam recirculation ratio of 0.25 and drying time of 23 min, creating dried EFBs with a 9.91% moisture content, which reduced costs by 5.48% relative to the undried base scenario. In addition, the developed model was compared to the drying process of a real power plant currently under construction in Indonesia. This drying process reduces the EFB moisture content from 48 to 20%. American Chemical Society 2020-02-05 /pmc/articles/PMC7034000/ /pubmed/32095704 http://dx.doi.org/10.1021/acsomega.9b03557 Text en Copyright © 2020 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Han, Jaechan
Choi, Yeongryeol
Kim, Junghwan
Development of the Process Model and Optimal Drying Conditions of Biomass Power Plants
title Development of the Process Model and Optimal Drying Conditions of Biomass Power Plants
title_full Development of the Process Model and Optimal Drying Conditions of Biomass Power Plants
title_fullStr Development of the Process Model and Optimal Drying Conditions of Biomass Power Plants
title_full_unstemmed Development of the Process Model and Optimal Drying Conditions of Biomass Power Plants
title_short Development of the Process Model and Optimal Drying Conditions of Biomass Power Plants
title_sort development of the process model and optimal drying conditions of biomass power plants
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7034000/
https://www.ncbi.nlm.nih.gov/pubmed/32095704
http://dx.doi.org/10.1021/acsomega.9b03557
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