Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6310072 | Chemosphere | 2013 | 10 Pages |
Abstract
As the main components in the oil fraction, oxygenated phenols, guaiacol, and syringol as well as their alkylated forms were detected. The yield of alkylated phenols showed a drastic increase at 350 °C in the presence of initial hydrogen gas due to prevailing hydrodeoxygenation and hydrogenation reactions of the vinyl/allyl/oxygenated phenols. These reactions were also demonstrated indirectly from the results of atomic H/C and O/C of the oils. The highest amount of monomeric phenols released from lignin (1.0 g) was measured as ca. 96.7 mg at 350 °C, 40 min, 100 mL gâ1, and 3 MPa of H2. In addition, GPC analysis suggested a possibility of condensation between lignin-degraded fragments during the solvolysis reaction.
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Authors
Jae-Young Kim, Shinyoung Oh, Hyewon Hwang, Tae-su Cho, In-Gyu Choi, Joon Weon Choi,