Physicochemical studies of the changes of properties and structure of medium rank coals during carbonization

Jasieńko, S.; Kidawa, H.; Świetlik, U.

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Tytuł artykułu

Physicochemical studies of the changes of properties and structure of medium rank coals during carbonization

Autorzy

Jasieńko S. , Kidawa H. , Świetlik U.

Identyfikatory

Warianty tytułu

Badania fizykochemiczne zmian właściwości i struktury węgli kamiennych średniouwęglonych w procesie karbonizacji

Języki publikacji

Abstrakty

Changes of properties and structure of coals during carbonization in the 300-15000C temperature range have been investigated. Medium rank hard coals (gas coal, gas-coking coal, orthocoking coal, metacoking coal and semicoking coal) as well as vitrains separated from them were studied. Proximate and ultimate analyses, coking properties, density, thermogravimetry, optical and scanning microscopy and X-ray diffraction were carried out for all the studied samples. The following successive carbonization stages were observed: presoftening, plasticity, resolidification and formation of semicoke and coke structures. Special attention was given to the formation of the anisotropic coke texture and its influence on the coke properties. Differences in carbonization behavior of the coals and vitrains were described. The role of petrographic constituents of coals - vitrinite, exinite and inertinite - in formation of coke structure was discussed.

Słowa kluczowe

bituminous coal carbonization structure

węgiel kamienny karbonizacja struktura

Wydawca

Centrum Materiałów Polimerowych i Węglowych PAN

Czasopismo

Polish Journal of Applied Chemistry

Rocznik

2002

Tom

Vol. 46, nr 2

Strony

57--79

Opis fizyczny

Bibliogr. 79 poz., tabl. 3,

Twórcy

autor

Jasieńko S.

Institute of Chemistry and Technology of Petroleum and Coal Wrocław University of Technology, Gdańska 7/9,50344 Wrocław

autor

Kidawa H.

Institute of Chemistry and Technology of Petroleum and Coal Wrocław University of Technology, Gdańska 7/9,50344 Wrocław

autor

Świetlik U.

Institute of Chemistry and Technology of Petroleum and Coal Wrocław University of Technology, Gdańska 7/9,50344 Wrocław

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Bibliografia

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