| 简介 |
The invention relates to a method for converting a feed selected from lignocellulosic biomass and carbohydrates, individually or as a mixture, into mono-oxygenated or poly-oxygenated compounds, wherein the feed is simultaneously treated with a catalytic system including a combination of one or more homogeneous catalysts selected from metal salts, the metal being a metal selected from the metals in groups 1 to 2 and groups 7 to 16 of the periodic table and the rare earth metals, and of one or more heterogeneous catalysts including a substrate selected from perovskites having an ABO3 structure, SiC, oxides of the elements La, Nd and Y, oxides of the elements selected from aluminium, titanium, silicon, zirconium, cerium and niobium individually or as a mixture, and mixed oxides selected from zinc aluminate, copper aluminate and cobalt aluminate, said oxides being doped with an alkaline and/or an alkaline earth and/or an element selected from the rare earth metals, in a reducing atmosphere, and at a temperature of 50 °C to 300 °C and at a pressure of 0.5 MPa to 20 MPa. |
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