Microhardness of the vitrinite as an index of the degree of reduction of coals

Journal Article · Sun Jan 01 00:00:00 EST 1984 · Solid Fuel Chem. (Engl. Transl.); (United States)

OSTI ID:5579121

Artser, A S; Dobronravov, V F

Chemical and petrographic analysis of coals of varying degrees of reduction from different coal series in the Kuzbass indicates that for any one vitrinite reflectance value, R/sub o/, there is an inverse relationship between plastic layer thickness in terms of caking components and the vitrinite micro-hardness. The effect of the degree of reduction on the vitrinite micro-hardness was determined and it was found that it depended on the degree of metamorphism in the region R/sub o/ equals 0.5-2.2%. Methods were developed to assess the degree of reduction directly from the vitrinite, utilising two parameters, micro-hardness and reflectance index.

• OSTI ID: 5579121
• Journal Information: Solid Fuel Chem. (Engl. Transl.); (United States), Vol. 18:2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
REDUCTION
MACERALS
MICROHARDNESS
COAL RANK
REDOX POTENTIAL
REFLECTIVITY
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HARDNESS
MATERIALS
MECHANICAL PROPERTIES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SURFACE PROPERTIES
010600* - Coal
Lignite
& Peat- Properties & Composition