The Utilization of Plum Stones for Pellet Production and Investigation of Post-Combustion Flue Gas Emissions
Agri-food waste is generated at various food cycle stages and is considered to be a valuable feedstock in energy systems and chemical syntheses. This research identifies the potential and suitability of a representative agri-food waste sample (i.e., plum stones) as a solid fuel. Ground plum stones c...
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2020-10-01
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author | Magdalena Dołżyńska Sławomir Obidziński Jolanta Piekut Güray Yildiz |
author_facet | Magdalena Dołżyńska Sławomir Obidziński Jolanta Piekut Güray Yildiz |
author_sort | Magdalena Dołżyńska |
collection | DOAJ |
description | Agri-food waste is generated at various food cycle stages and is considered to be a valuable feedstock in energy systems and chemical syntheses. This research identifies the potential and suitability of a representative agri-food waste sample (i.e., plum stones) as a solid fuel. Ground plum stones containing 10, 15, and 20 wt.% of rye bran were subjected to pelletization. The pelletizer was operated at 170, 220, and 270 rpm, and its power demand for the mixture containing 20 wt.% of rye bran was 1.81, 1.89, and 2.21 kW, respectively. Such pellets had the highest quality in terms of their density (814.6 kg·m<sup>−3</sup>), kinetic durability (87.8%), lower heating value (20.04 MJ·kg<sup>−1</sup>), and elemental composition (C: 54.1 wt.%; H: 6.4 wt.%; N: 0.73 wt.%; S: 0.103 wt.%; Cl: 0.002 wt.%; O: 38.2 wt.%). Whole plum stones and pellets were subjected to combustion in a 25 kW retort grate boiler in order to determine the changes in the concentrations of NO, SO<sub>2</sub>, CO, CO<sub>2</sub>, HCl, and O<sub>2</sub> in the post-combustion flue gas. Collected results indicate that plum stone–rye bran pellets can serve as effective substitutes for wood pellets in prosumer installations, meeting the Ecodesign Directive requirements for CO and NO. |
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issn | 1996-1073 |
language | English |
last_indexed | 2024-03-10T15:55:04Z |
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publisher | MDPI AG |
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series | Energies |
spelling | doaj.art-81fdb89ed802478d8da790cdfba068772023-11-20T15:46:09ZengMDPI AGEnergies1996-10732020-10-011319510710.3390/en13195107The Utilization of Plum Stones for Pellet Production and Investigation of Post-Combustion Flue Gas EmissionsMagdalena Dołżyńska0Sławomir Obidziński1Jolanta Piekut2Güray Yildiz3Faculty of Civil Engineering and Environmental Sciences, Białystok University of Technology, Wiejska 45E, 15-351 Białystok, PolandFaculty of Civil Engineering and Environmental Sciences, Białystok University of Technology, Wiejska 45E, 15-351 Białystok, PolandFaculty of Civil Engineering and Environmental Sciences, Białystok University of Technology, Wiejska 45E, 15-351 Białystok, PolandDepartment of Energy Systems Engineering, Izmir Institute of Technology, Gulbahce, Urla, 35430 Izmir, TurkeyAgri-food waste is generated at various food cycle stages and is considered to be a valuable feedstock in energy systems and chemical syntheses. This research identifies the potential and suitability of a representative agri-food waste sample (i.e., plum stones) as a solid fuel. Ground plum stones containing 10, 15, and 20 wt.% of rye bran were subjected to pelletization. The pelletizer was operated at 170, 220, and 270 rpm, and its power demand for the mixture containing 20 wt.% of rye bran was 1.81, 1.89, and 2.21 kW, respectively. Such pellets had the highest quality in terms of their density (814.6 kg·m<sup>−3</sup>), kinetic durability (87.8%), lower heating value (20.04 MJ·kg<sup>−1</sup>), and elemental composition (C: 54.1 wt.%; H: 6.4 wt.%; N: 0.73 wt.%; S: 0.103 wt.%; Cl: 0.002 wt.%; O: 38.2 wt.%). Whole plum stones and pellets were subjected to combustion in a 25 kW retort grate boiler in order to determine the changes in the concentrations of NO, SO<sub>2</sub>, CO, CO<sub>2</sub>, HCl, and O<sub>2</sub> in the post-combustion flue gas. Collected results indicate that plum stone–rye bran pellets can serve as effective substitutes for wood pellets in prosumer installations, meeting the Ecodesign Directive requirements for CO and NO.https://www.mdpi.com/1996-1073/13/19/5107agri-food wasteplum stonespressure agglomerationbiomass combustionflue gas emissions |
spellingShingle | Magdalena Dołżyńska Sławomir Obidziński Jolanta Piekut Güray Yildiz The Utilization of Plum Stones for Pellet Production and Investigation of Post-Combustion Flue Gas Emissions Energies agri-food waste plum stones pressure agglomeration biomass combustion flue gas emissions |
title | The Utilization of Plum Stones for Pellet Production and Investigation of Post-Combustion Flue Gas Emissions |
title_full | The Utilization of Plum Stones for Pellet Production and Investigation of Post-Combustion Flue Gas Emissions |
title_fullStr | The Utilization of Plum Stones for Pellet Production and Investigation of Post-Combustion Flue Gas Emissions |
title_full_unstemmed | The Utilization of Plum Stones for Pellet Production and Investigation of Post-Combustion Flue Gas Emissions |
title_short | The Utilization of Plum Stones for Pellet Production and Investigation of Post-Combustion Flue Gas Emissions |
title_sort | utilization of plum stones for pellet production and investigation of post combustion flue gas emissions |
topic | agri-food waste plum stones pressure agglomeration biomass combustion flue gas emissions |
url | https://www.mdpi.com/1996-1073/13/19/5107 |
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