Noncatalytic liquefaction of tar with low-temperature hydrothermal treatment

Wahyudiono, Mitsuru Sasaki, Motonobu Goto

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Water at hydrothermal and supercritical conditions is considered a promising solvent for the degradation of hazardous waste into harmless compounds. Tar liquefaction experiments were conducted using a batch-type reactor at temperatures between 623∈K and 673∈K and at pressures between 25 and 40∈MPa. A reaction mechanism for tar liquefaction is proposed. Moreover, on the basis of the experimental results, this method could become an efficient method for tar liquefaction, producing high yields of valuable chemical intermediates.

Original languageEnglish
Pages (from-to)173-181
Number of pages9
JournalJournal of Material Cycles and Waste Management
Issue number2
Publication statusPublished - 2007 Sept
Externally publishedYes


  • Hydrothermal
  • Liquefaction
  • Mechanism
  • Phenol
  • Supercritical water
  • Tar

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Mechanics of Materials


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