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In this work, the low-boiling fraction (LBF) of bio-oil was used as feed stock. LBF is a very complex mixture, and the three groups in LBF: acids, aldehydes and phenols, are primarily responsible for deterioration in the quality. The upgrading reactions were carried out over Pt/Al 2 (SiO 3 ) 3 , Pt/C or Pt/MgO in supercritical methanol. It is demonstrated that supercritical...
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