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Copyrolysis of two waste wood samples with block polypropylene were investigated for the reaction characteristics and properties of the pyrolytic oil. The thermal decomposition of the mixture led to an increase in the temperature range for the decomposition of polypropylene, which implied an interaction in the mixture. New tar compounds were also identified from the copyrolysis using pyrolysis gas chromatography/mass spectrometry. The oil produced from the mixtures in a batch type reactor had an increase in the mass yield, with higher C and H, and lower moisture contents. [ABSTRACT FROM AUTHOR]

Ni/kieselguhr catalysts were applied to hydrodeoxygenate 2-methoxyphenol as a model reaction for bio-oil upgrading in a batch reactor at 100°C and 1.36 MPa. The Ni(40 wt%)-MgO(1.8 wt%)/kieselguhr showed much higher activity in the 2-methoxyphenol hydrodeoxygenation, which could be attributed to the optimal nickel particle size, surface area, and reducibility of the catalyst. Of the Na2CO3+ Urea, NaHCO3, and (NH4)2CO3precipitants, the Na2CO3+ Urea showed the highest activity because the dispersion and surface area of nickel, rather than the pore size of the catalyst, seems to play an important role in the 2-methoxyphenol hydrodeoxygenation. [ABSTRACT FROM PUBLISHER]