Comparative inhibiting effect of polycondensed aromatics and nitrogen compounds on the hydrodesulfurization of alkyldibenzothiophenes
Guevara Lara, Alfredo
2002
T. Koltai, M. Macaud, A. Guevara, E. Schulz, M. Lemaire, R. Bacaud, M. Vrinat, Comparative inhibiting effect of polycondensed aromatics and nitrogen compounds on the hydrodesufurization of alkyldibenzothiophenes, Applied catálisis A: General, 231 (2002) pp. 253-261. Ed. Elsevier, Holanda. ISSN 0926-860X. Factor de impacto 3.190
Abstract
The influence of anthracene, phenanthrene, fluorene, acridine and carbazole on the transformation of 4,6-dimethyldibenzothiophene on a NiMo/Al2O3 catalyst was studied. Reactivities have been evaluated under increasing concentrations of inhibitors and negative effect of some polycondensed ring aromatic compounds has been shown to be in the same order of magnitude than that of N-containing compounds. Moreover, such inhibition was proposed to be due to some partially hydrogenated molecule and conclusions relative to the practice of deep hydrodesulfurization (HDS) were drawn.