Record details

Title
    Microporous structure of carbonaceous substances and the significance of its
Statement of responsibility
    Zuzana Weishauptová, Jiří Medek
Author
    Medek, Jiří
    Weishauptová, Zuzana
Language
    anglicky
Source title - serial
    Acta montana. Series AB, Geodynamics and Fuel, Carbon and Mineral Processing
Vol./nr.
    No. 8(115)
Pages
    p. 105-110
Year
    2000
Notes
    1 obr., 4 tab., 10 bibl.
    il.
    Zkr. název ser.: Acta montana
Subject group
    fraktál
    metan
    mikropuklina
    organická substance
    oxid uhličitý
    porozita
    prouhelnění
    rizika geologická
    sorpce
    technologie
    uhlí
    vlastnosti kolektorské
Keyword
    Carbonaceous
    Microporous
    Significance
    Structure
    Substances
Abstract (in english)
   Microporosity represents one of the basic properties of substances, which are based on organized carbon. their solid phase forms with the micropores a slef-existent physical system, which we have called "microporous phase". The microporous phase is characterized by the continuity of structure at the signifocant, even extreme changes of state and this structure remains preserved even under chemical changes of the solid phase as a skeleton. As parameters characterizing the microporous phase the radius mode rmode and the characteristic energy E were applied, the deviation of steric arrangement from the regular gemetric formation was expressed by the fractal dimension D. Gravimetric sorption analysis gave us the possibility of discerning between the both sorption processes - adsorption and absorption. Absorption represents here the dissolution of molecules of gases and vapours in the solid phase.
   The knowledge obtained was applied in the real system coal/methane, which is of considerable energetic, safety and ecological importance. A deeper knowledge concerning especiall the kinetics of methane release and the replacement sorption of methane with carbon dioxide was obtained
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    28. 3. 2008
Import date
    8. 8. 2012