Sorption of CO2 on low-rank coal: Study of influence of various drying methods on microporous characteristics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F14%3AA1501BFV" target="_blank" >RIV/61988987:17310/14:A1501BFV - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Sorption of CO2 on low-rank coal: Study of influence of various drying methods on microporous characteristics

Popis výsledku v původním jazyce

Various drying procedures were applied to North Bohemian low-rank coal. Dried samples were subjected to CO2 sorption analysis. Adsorption data were evaluated according to the Dubinin-Radushkevich and Medek equation to describe the micropore parameters. It was proven that drying conditions may have an impact on the monitored characteristics of the studied coal, particularly on the surface area of the micropores and the abundance of the most frequent pores. The observed textural parameters do not depend on the drying period but are a function of the drying temperature and may also be influenced by the presence of an oxidising atmosphere. Temperatures higher than 60 °C can cause alterations in the structure of the coal. Both the surface area of the micropores and the abundance of the most frequent pores of the studied coal increase in the following range of techniques: convection oven drying &lt; inert-gas purging, microwave irradiation &lt; hot-oven vacuum pumping &lt; freeze-drying (lyo

Název v anglickém jazyce

Sorption of CO2 on low-rank coal: Study of influence of various drying methods on microporous characteristics

Popis výsledku anglicky

Various drying procedures were applied to North Bohemian low-rank coal. Dried samples were subjected to CO2 sorption analysis. Adsorption data were evaluated according to the Dubinin-Radushkevich and Medek equation to describe the micropore parameters. It was proven that drying conditions may have an impact on the monitored characteristics of the studied coal, particularly on the surface area of the micropores and the abundance of the most frequent pores. The observed textural parameters do not depend on the drying period but are a function of the drying temperature and may also be influenced by the presence of an oxidising atmosphere. Temperatures higher than 60 °C can cause alterations in the structure of the coal. Both the surface area of the micropores and the abundance of the most frequent pores of the studied coal increase in the following range of techniques: convection oven drying &lt; inert-gas purging, microwave irradiation &lt; hot-oven vacuum pumping &lt; freeze-drying (lyo

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/LO1208" target="_blank" >LO1208: Teoretické aspekty energetického zpracování odpadů a ochrany prostředí před negativními dopady</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

INT J COAL GEOL

ISSN

0166-5162

e-ISSN

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Svazek periodika

132

Číslo periodika v rámci svazku

Říjen 2014

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

1-5

Kód UT WoS článku

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EID výsledku v databázi Scopus

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