Efficient conversion of lignin into single chemical species by solvothermal reaction in water-p-cresol solvent

Kazuhide Okuda, Xin Man, Mitsuo Umetsu, Seiichi Takami, Tadafumi Adschiri

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

Lignin was selectively converted into single chemical species in water-p-cresol mixtures at 673 K. Complete depression of char formation was realized in a mixture of 1.8 g of water and 2.5 g of p-cresol. The frame structure of lignin was efficiently decomposed within a reaction time of 4 min. The species obtained had a molecular weight of 214 (M+) assigned by gas chromatography-mass spectroscopy and was identified as hydroxylphenyl- (hydroxyltolyl)-methane (HPHTM) by 1H and 13C nuclear magnetic resonance. Its yield approached the maximum of 80% C at ∼30 min of reaction time. HPHTM was presumably produced by the addition of p-cresol at the most active Cα position of the hydroxyphenylpropane derivative that was formed by the hydrolysis of lignin.

Original languageEnglish
Pages (from-to)S1325-S1330
JournalJournal of Physics Condensed Matter
Volume16
Issue number14
DOIs
Publication statusPublished - 2004 Apr 14

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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