Biomass pellets with organic binders - Before and after torrefaction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F24%3A10256625" target="_blank" >RIV/61989100:27230/24:10256625 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/24:10256625 RIV/61989100:27730/24:10256625

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0960148123016865?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0960148123016865?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.renene.2023.119771" target="_blank" >10.1016/j.renene.2023.119771</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Biomass pellets with organic binders - Before and after torrefaction

Popis výsledku v původním jazyce

Given the current energy situation in the world, torrefaction offers a promising technique to produce fuel that can be used as a substitute for coal in combustion. The pelletization process can be simplified by the addition of a binder. The aim of this study was to determine the influence of the binders on the mechanical and energetic properties of the pellets before and after torrefaction. The initial material was meadow hay. The hay was crushed and three binders (lignosulfonate, wheat flour, starch) were added - 2 and 15 wt% The basic powder characterisation (compressibility, internal friction, and angle of repose) were performed on all binders. Lignosulfonate had the best flowability and therefore appeared to be the most suitable from a process point of view. Testing were also carried out on non-torrefied and torrefied pellets. The mechanical-physical properties (hardness, mechanical resistance, wettability) were also determined. Hardness and mechanical resistance for non-torrefied pellets was increased by adding lignosulfonate (15 wt%) and flour (2 wt%). After torrefaction, hardness and pellet durability index of the pellets decreased significantly, but still the best pellets were those with lignosulfonate (15 wt%) and flour (2 wt%). Non-torrefied pellets do not have a good resistance to water absorption, but lignosulfonate in ratio of 15 wt% and as well as flour in ratio of 2 wt% have a positive effect on this feature. Moreover, torrefaction has a positive effect on the pellet&apos;s resistance to water absorption. The results were supported by FTIR analysis. Last but not least, a simple calculation of the consumption of pellets for heating and hot water heating for a family home is given.

Název v anglickém jazyce

Biomass pellets with organic binders - Before and after torrefaction

Popis výsledku anglicky

Given the current energy situation in the world, torrefaction offers a promising technique to produce fuel that can be used as a substitute for coal in combustion. The pelletization process can be simplified by the addition of a binder. The aim of this study was to determine the influence of the binders on the mechanical and energetic properties of the pellets before and after torrefaction. The initial material was meadow hay. The hay was crushed and three binders (lignosulfonate, wheat flour, starch) were added - 2 and 15 wt% The basic powder characterisation (compressibility, internal friction, and angle of repose) were performed on all binders. Lignosulfonate had the best flowability and therefore appeared to be the most suitable from a process point of view. Testing were also carried out on non-torrefied and torrefied pellets. The mechanical-physical properties (hardness, mechanical resistance, wettability) were also determined. Hardness and mechanical resistance for non-torrefied pellets was increased by adding lignosulfonate (15 wt%) and flour (2 wt%). After torrefaction, hardness and pellet durability index of the pellets decreased significantly, but still the best pellets were those with lignosulfonate (15 wt%) and flour (2 wt%). Non-torrefied pellets do not have a good resistance to water absorption, but lignosulfonate in ratio of 15 wt% and as well as flour in ratio of 2 wt% have a positive effect on this feature. Moreover, torrefaction has a positive effect on the pellet&apos;s resistance to water absorption. The results were supported by FTIR analysis. Last but not least, a simple calculation of the consumption of pellets for heating and hot water heating for a family home is given.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Renewable Energy

ISSN

0960-1481

e-ISSN

1879-0682

Svazek periodika

221

Číslo periodika v rámci svazku

February 2024

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

001143539500001

EID výsledku v databázi Scopus

2-s2.0-85180406341