Automotive biofules by catalytic hydrodeoxygenation (HDO) of pyrolysis oils from forest wood

TAR oil from biomass has significant quantities of refractory oxygenated compounds which must be removed to be useful as alternative fuels. Therefore, the activity of several supported CoMo/Al2O3, sulphurated with H2S at 300-400°C, has been proved in the hydrodeoxygenation (HDO) using either reactant TAR oil from forest wood pyrolysis or model reactant mixture of 2-methoxyphenol (Guaiacolo), cyclehexene, methyl-terz-butyl-ether (MTBE), butyl alcohol and acetic acid. The reaction path in the hydrodeoxygenation process approaching industrial condition have been assessed.