eesti teaduste
akadeemia kirjastus
SINCE 1984
Oil Shale cover
Oil Shale
ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)
Impact Factor (2020): 0.934


Full article in PDF format | doi: 10.3176/oil.2010.1.04


The present work investigates volumetric swelling of Estonian Dictyonema oil shale, as a representative of black shales of the Baltoscandian basin, in 22 solvents. This study shows that kerogen of Dictyonema oil shale is charac­terized by a low degree of swelling indicating a highly cross-linked structure. The relatively high swellability in high Guttmann’s electron donor number solvents indicates the importance of non-covalent cross-links, such as hydrogen bonding, in swelling process and raises concern regarding the use of regular solution-based approaches. Despite this, the solubility para­meter, a funda­mental thermodynamic property, was tentatively determined from swelling data.

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