Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1197641 | Journal of Analytical and Applied Pyrolysis | 2010 | 4 Pages |
Abstract
Equilibrium swelling experiments were used to gain insight into the structural changes of Dictyonema oil shale kerogen (baltoscandian basin black shale kerogen) during low-temperature heating. Room temperature volumetric swelling was measured for samples previously thermally pre-treated at different temperatures under an inert gas environment. The swelling capacity for heat-treated Dictyonema oil shale decreases with increasing pre-treatment temperature from about 150 °C to 380 °C, suggesting that cross-linking reactions occur during low-temperature heat treatment in the pre-pyrolysis temperature region. This behavior is consistent with that observed in non-softening low-tar yield coals.
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Authors
Kristel Kilk, Natalja Savest, Aleksei Yanchilin, Diane S. Kellogg, Vahur Oja,