Hydrodesulfurization of dibenzothiophene catalyzed by suported metal carbonyl complexes

摘要

Hydrodesulfurization (HDS) of dibenzothiophene (DBT) catalyzed by supported anonic molybdeum and ruthenium carbonyl complexes is described,specifically the catalytic activity and the product selectivity.A Mo(CO)_6-NEt_3-EtSH/Al_2O_3 system activated by H_2 or H_2S shows the highest catalytic activity among catalysts derived from supported-metal carbonyl and conventional molydena-alumina.Investigation of the effects of supports found the yidlds of HDS products decreased in tehorder,SiO_2-Al_2O-3>Al_2O_3>TiO_2=Active carbon>SiO_2>NaY zeolite =HZSM-5>HY zeolite.