Effects of water pretreatment on properties of pellets made from beech particles
| Autor: | Jasmina Popović, Mladjan Popovic, Ana Prahin, Milanka Điporovic-Momčilović, Ivana Gavrilović-Grmuša, Vladimir Dodevski |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
hot water pretreatment pellet properties 020209 energy General Chemical Engineering Pellets TP1-1185 02 engineering and technology 01 natural sciences 010608 biotechnology Pellet 0202 electrical engineering electronic engineering information engineering chemical composition Beech Chemical composition Water content heating value biology Chemistry Chemical technology digestive oral and skin physiology General Chemistry biology.organism_classification Equilibrium moisture content 13. Climate action Particle Heat of combustion Nuclear chemistry |
| Zdroj: | Hemijska Industrija, Vol 75, Iss 1, Pp 39-51 (2021) |
| ISSN: | 2217-7426 0367-598X |
| DOI: | 10.2298/hemin191224007p |
| Popis: | Particles of beech wood were treated with hot water at the temperature of 150 oC, during 60 min, prior to the pelleting process. The applied hot water pretreatment affected the chemical composition and heating value of particles. Two groups of pellets, designated as PT 10 and PT 20, were produced from treated beech particles, with the moisture content of particles being 10.5 and 20.5 %, respectively. Pellets from nontreated beech particles (PNT) served as controls to assess the hot water pretreatment effects on the pellet properties. Both, the applied pretreatment, and the particle moisture content, affected properties of the obtained pellets. The heating value of PT 10 ad PT 20 pellets has increased for ~6 and 1 %, respectively. The mineral (ash) content in treated pellets decreased for about 24 % in comparison to that in PNT pellets. In addition, the bulk (apparent) density of pellets has increased for 21 % (PT 10) and 10 % (PT 20), as a consequence of the hot water pretreatment of particles. The specific density of PT 10 pellets was for 16 % higher, while the equilibrium moisture content (after conditioning at RH 68 % and 20.1?C) was for about 32 % lower in comparison to the respective properties of PNT pellets. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|