Inorganic matter partitioning in boilers with grate burners and rated output below 25 kW: Ash type and particle forming elements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F26%3A0199497" target="_blank" >RIV/00216305:26210/26:0199497 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0378382025001924" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0378382025001924</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuproc.2025.108368" target="_blank" >10.1016/j.fuproc.2025.108368</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Inorganic matter partitioning in boilers with grate burners and rated output below 25 kW: Ash type and particle forming elements

Popis výsledku v původním jazyce

The inorganic matter of solid biofuels can be categorized into three different ash types: type-S (Si, Al, Fe, Ti), type-K (K, Na, P, Cl, S) and type-C (Ca, Mg, Mn). A total of 9 different biofuels (3 for each ash type) has been analyzed and then combusted in a 25 kW grate fired boiler. Emission factors and partitioning of typical particle forming elements (Ca, K, Na, P and Zn) were determined and show a strong correlation (R2 = 0.88) with their content in the feedstock. Additionally, gaseous emissions, particle size distribution and emission factors of other major and trace elements were also established. The total ash content of the tested biofuels varied from 0.4 % for spruce up to 32.9 % for paper, however most fuels contained between 5 and 10 %. The emission factors show that the most prevalent element in the flue gas was K (generally contributing over 25 % to total particulate emissions). The release of K into the flue gas varied, with type-K fuels reaching values over 10 %, while type-S fuels only around 6 %, most likely due to the formation of refractory aluminosilicate phases. Moreover, with growing K release, the particle size distribution gradually shifted from 0.14 up to 0.59 μm.

Název v anglickém jazyce

Inorganic matter partitioning in boilers with grate burners and rated output below 25 kW: Ash type and particle forming elements

Popis výsledku anglicky

The inorganic matter of solid biofuels can be categorized into three different ash types: type-S (Si, Al, Fe, Ti), type-K (K, Na, P, Cl, S) and type-C (Ca, Mg, Mn). A total of 9 different biofuels (3 for each ash type) has been analyzed and then combusted in a 25 kW grate fired boiler. Emission factors and partitioning of typical particle forming elements (Ca, K, Na, P and Zn) were determined and show a strong correlation (R2 = 0.88) with their content in the feedstock. Additionally, gaseous emissions, particle size distribution and emission factors of other major and trace elements were also established. The total ash content of the tested biofuels varied from 0.4 % for spruce up to 32.9 % for paper, however most fuels contained between 5 and 10 %. The emission factors show that the most prevalent element in the flue gas was K (generally contributing over 25 % to total particulate emissions). The release of K into the flue gas varied, with type-K fuels reaching values over 10 %, while type-S fuels only around 6 %, most likely due to the formation of refractory aluminosilicate phases. Moreover, with growing K release, the particle size distribution gradually shifted from 0.14 up to 0.59 μm.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/TQ03000712" target="_blank" >TQ03000712: Výzkum a vývoj biopaliv ze zemědělských reziduí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Fuel Processing Technology

ISSN

0378-3820

e-ISSN

1873-7188

Svazek periodika

—

Číslo periodika v rámci svazku

280

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

001622840900001

EID výsledku v databázi Scopus

2-s2.0-105021878925