Boreskov Institute of Catalysis of the Siberian Branch of Russian ...

PP-V-9Neither the low sulphur content (150 mg/kg)of the feedstock does not favor the selective hydrodesulphurization ability (high HDS activitybut moderate olefin and aromatics hydrogenation activity and thus low level of octane numberloss) of the PtPd/USY catalyst. Accordingly, the reason of the selectivehydrodesulphurization ability is the inhibiting effect of sulphur compounds and the resultinghydrogen sulphide on olefin hydrogenation, while high concentration of sulphur compoundsinhibits hydrodesulphurization.References1. Song, C., Catalysis Today 86 (2003) 211–263.2. Brunet, S., Mey, D., Pérot, G., Bouchy, C., Diehl, F., Applied Catalysis A, 278 (2005) 143–172.3. Toba, M., Miki, Y., Matsui, T., Harada, M., Yoshimura, Y., Applied Catalysis B Environmental 70 (2007)542-548.4. Magyar, Sz., Hancsók, J., Kalló, D., Fuel Processing Technology, 86 (2005) 1151-1164.5. Hancsók, J., Magyar, Sz., Juhász, K., Kalló, D., Topics in Catalysis, 45(1-4) (2007), 207-212.474