Humic acids oxidatively altered bituminous coal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F01%3A00000841" target="_blank" >RIV/61989100:27360/01:00000841 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Humic acids oxidatively altered bituminous coal

Popis výsledku v původním jazyce

Bituminous coal seams in proximity to or in direct contact with red beds bodies of the Upper Silesian Coal Basin were altered by oxidation. This contribution is concerned with oxidative altered coal from Lazy Mine, Landek Hill where coal seams crop out at the surface and laboratory oxidized coal. All this coal can be characterized namely by retrogradely formed humic acids. Propensity of coal to oxidation was laboratory tested on two different coal samples. From laboratory results the kinetics of coal oxidation for temperature interval from 150 to 300oC was evaluated. Using the extrapolation it was calculated time needed for the formation of 1% of humic acids at 25oC. Chemical composition and structure of coal samples and their humic acids suggest thatcoal in proximity of variegated body deposited now approximately 300m below paleorelief is very similar to weathered coal from Landek Hill and also to laboratory oxidized coal at temperature below 150oC.

Název v anglickém jazyce

Humic acids oxidatively altered bituminous coal

Popis výsledku anglicky

Bituminous coal seams in proximity to or in direct contact with red beds bodies of the Upper Silesian Coal Basin were altered by oxidation. This contribution is concerned with oxidative altered coal from Lazy Mine, Landek Hill where coal seams crop out at the surface and laboratory oxidized coal. All this coal can be characterized namely by retrogradely formed humic acids. Propensity of coal to oxidation was laboratory tested on two different coal samples. From laboratory results the kinetics of coal oxidation for temperature interval from 150 to 300oC was evaluated. Using the extrapolation it was calculated time needed for the formation of 1% of humic acids at 25oC. Chemical composition and structure of coal samples and their humic acids suggest thatcoal in proximity of variegated body deposited now approximately 300m below paleorelief is very similar to weathered coal from Landek Hill and also to laboratory oxidized coal at temperature below 150oC.

Druh

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

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA105%2F99%2F0225" target="_blank" >GA105/99/0225: Alterovaná černá uhlí: modelování jejich vzniku a možnosti průmyslového využití</a><br>

Návaznosti

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

Rok uplatnění

2001

Kód důvěrnosti údajů

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

Název periodika

Peoceedings of the 11 th International Conference on Coal Science

ISSN

—

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

6-9

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—