FUEL 167 |
| A potential valorization pathway for lignocelullosic biomass fast pyrolysis oils is their co-hydrotreatment with some petroleum cuts to produce transportation fuels. The study of simultaneous hydrodeoxygenation (HDO) and hydrodesulphurization (HDS) reactions is essential to consider such co-treatment. The influence of oxygenated compounds (0.5%wt of oxygen) on the hydrotreatment of an atmospheric gas oil on CoMo/gamma-Al2O3 catalyst was studied. The selected compounds are representative of the chemical families present in bio-oils. Reaction schemes of HDO reactions for each studied oxygenated compound were proposed, and their impact on the gas oil HDS global rate was determined. 2-propanol, cyclopentanone, anisole and guaiacol were not found to be inhibitors in the operating conditions of this study. However, propanoic acid and ethyldecanoate had an inhibiting effect on HDS. This inhibition is believed to be due to a competition between the HDS reactions and the methanation of CO and CO2 formed during oxygenated compounds decomposition. |
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Clean Energy, Fuels and Chemicals from Biomass
1:45 PM-4:35 PM, Tuesday, April 8, 2008 Morial Convention Center -- Rm. 239, Oral
Division of Fuel Chemistry |