Pyrolysis solid product as a sorbent for flue gases mercury capture - Part I: Sorbent formation and characteristics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27650%2F24%3A10255153" target="_blank" >RIV/61989100:27650/24:10255153 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27730/24:10255153 RIV/61989100:27230/24:10255153

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2352186424001731" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352186424001731</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.eti.2024.103697" target="_blank" >10.1016/j.eti.2024.103697</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pyrolysis solid product as a sorbent for flue gases mercury capture - Part I: Sorbent formation and characteristics

Popis výsledku v původním jazyce

This study investigates the pyrolysis of various materials (solid recovered fuel, digestate, hay pellets, straw, polyethylene, and tires) at temperatures ranging from 350 to 650 degrees C, with retention times between 90 and 190 minutes and a heating rate of 10 degrees C center dot min-1. Its focus is on utilizing pyrolysis residue-char as a sorbent for mercury capture from flue gas during conventional fuel combustion. Physical and chemical activation techniques employing NaOH as an oxidizing agent are used to enhance surface area and pore volume. Characterization techniques, including thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy and various analyses, are employed. Results indicate solid fraction recoveries of 77%wt. for solid recovered fuel, 58%wt. for tires, and 48%wt. for straw, with average recoveries of 47%wt. solid, 18.7%wt. gaseous, and 34.3%wt. liquid fractions. After applying the activation processes, the results reveal that the most suitable sorbent is the straw sample, where the specific surface area and pore volume are 148.95 m2 center dot g-1 and 0.0569 cm3 center dot g-1 after physical activation and 640.98 m2 center dot g-1 and 0.2867 cm3 center dot g-1 after chemical activation, respectively. These findings suggest promising applications for pyrolysis char as sorbents, with significant improvements achieved through activation methods. The application of the developed sorbents for mercury capture in a real flue gas environment is closely investigated in Part II of this study.

Název v anglickém jazyce

Pyrolysis solid product as a sorbent for flue gases mercury capture - Part I: Sorbent formation and characteristics

Popis výsledku anglicky

This study investigates the pyrolysis of various materials (solid recovered fuel, digestate, hay pellets, straw, polyethylene, and tires) at temperatures ranging from 350 to 650 degrees C, with retention times between 90 and 190 minutes and a heating rate of 10 degrees C center dot min-1. Its focus is on utilizing pyrolysis residue-char as a sorbent for mercury capture from flue gas during conventional fuel combustion. Physical and chemical activation techniques employing NaOH as an oxidizing agent are used to enhance surface area and pore volume. Characterization techniques, including thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy and various analyses, are employed. Results indicate solid fraction recoveries of 77%wt. for solid recovered fuel, 58%wt. for tires, and 48%wt. for straw, with average recoveries of 47%wt. solid, 18.7%wt. gaseous, and 34.3%wt. liquid fractions. After applying the activation processes, the results reveal that the most suitable sorbent is the straw sample, where the specific surface area and pore volume are 148.95 m2 center dot g-1 and 0.0569 cm3 center dot g-1 after physical activation and 640.98 m2 center dot g-1 and 0.2867 cm3 center dot g-1 after chemical activation, respectively. These findings suggest promising applications for pyrolysis char as sorbents, with significant improvements achieved through activation methods. The application of the developed sorbents for mercury capture in a real flue gas environment is closely investigated in Part II of this study.

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

Environmental Technology &amp; Innovation

ISSN

2352-1864

e-ISSN

2352-1864

Svazek periodika

35

Číslo periodika v rámci svazku

Srpen 2024

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

"Nestránkováno"

Kód UT WoS článku

001248570600001

EID výsledku v databázi Scopus

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