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Formation of C1C3 hydrocarbons during pressure pyrolysis and hydrogasification in relation to structural changes in coal by Aleksander Karcz; Stanisław Porada is a Engineering article available to read on EtoBox.

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A comparative study on pyrolysis and hydrogasification of a bituminous coal was conducted under non-isothermal heating at 3 K min-' to 12OOK. The kinetics of C,-C, hydrocarbon formation were measured and total yields of the products were evaluated. The chemical and optical structures of the coal chars obtained at different temperatures were also investigated. At temperatures > 750 K, the influence of gas atmosphere (Ar or HJ on the kinetics of hydrocarbon formation was found significant. The use of hydrogen atmosphere even at the relatively low experimental pressure of 2.5 MPa resulted in a high conversion (40%) of carbon to C,-C, hydrocarbons as well as in inhibition of the formation of optical anisotropic structures in the char.

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Author

Aleksander Karcz; Stanisław Porada

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0016-2361)

Published

1995

Language

EN

Field

Engineering (Physical Sciences)