EAP - Oil Shale publications

PUBLISHED
SINCE 1984

Oil Shale

ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)

Open Access Journal

CiteScore: 2.6

Impact Factor (2022): 1.9

SOLVENT SWELLING OF DICTYONEMA OIL SHALE; pp. 26–36

PDF | doi: 10.3176/oil.2010.1.04

Authors

Kalle Kilk, N. SAVEST, J. HRULJOVA, E. TEARO, Sven Kamenev, Vahur Oja

Abstract

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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