Boreskov Institute of Catalysis of the Siberian Branch of Russian ...

OP-V-8cellulose components decompose at 180-250°C and 280-330°C respectively, ligninedecompositions takes place in a wider range of temperature superimposing to that of the othertwo components (Fig.1 left). The following species were found according to the semiquantitativeanalysis of the main products, except H 2 (not IR detectable): H 2 O, CO, CO 2 , lighthydrocarbons and, in minor concentration, acid and aldehydes (Fig. 1 right).CO 2AldehydesacidsC=OEstersFormic acidC-O-H 2 OO-HAlkanesC-HCOH 2 O800°C35°CFig. 1. left: Maple wood weight loss versus time and temperature program (25 mg, size range 125-212 microns);right: Infrared stack plot of wood chip thermal decomposition.An Al 2 O 3 supported Rh-LaCoO 3 (Rh 1 wt%) was tested in a fixed bed reactor underisothermal conditions feeding the gas mixture originated from the biomass decompositioncarried out in a separate furnace heated up at the same rate as in the thermogravimetricexperiments (10°C/min). A micro-GC (HP 6890 Series) was used to analyze the products inorder to perform a quick analysis (