期刊
CATALYSIS TODAY
卷 143, 期 1-2, 页码 172-178出版社
ELSEVIER
DOI: 10.1016/j.cattod.2008.11.024
关键词
Guaiacol HDO; Co-processing hydrotreating; 2D-GC-MS
Within the frame of second generation bio-fuels development, the present work reports for the first time the impact of co-processing guaiacol as an oxygenated molecule representative of pyrolitic bio oils with a straight run gas oil (SRGO) in the framework of a hydrodesulfurization process (HDS). The reaction scheme observed during the hydrotreating of the sole guaiacol in the gas phase was compared to the conversion products observed during the co-processing of guaiacol with the SRGO, by using the two dimensional GC-MS analysis. During the co-processing, a decrease of the HDS performance of a reference CoMo/Al2O3 catalyst was observed at low temperature and high contact time. It was assigned to the formation of intermediate phenols competing with sulfur containing molecules for adsorbing on hydrogenation/hydrogenolysis sites. Above 320 degrees C, complete hydrodeoxygenation (HDO) of guaiacol was observed and HDS could proceed without any further inhibition. (c) 2009 Published by Elsevier B.V.
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