| |
| Hydroconversion of naphthalene (NpH) and its derivatives, i. e., 1-methylnaphthalene (1-MN), di(1-naphthyl)methane (DNM) and 1,2-di(1-naphthyl)ethane (DNE) were carried out under 5 MPa of initial hydrogen pressure at 300 oC. The results show that the reactivities of the substrates decrease in the order DNM > DNE > NpH > 1-MN toward activated carbon-catalyzed hydroconversion. The hydrogenation of NpH only yielded tetralin. Two tetrahydro products were observed from 1-MN hydrogenation, but the selectivity of 5-methyltetralin was higher than that of 1-methyltetralin. DNM hydroconversion mainly afforded NpH and 1-MN along with small amouts of hydrogenated di(1-naphthyl)methanes. While the reaction of DNE predominantly produced hydrogenated 1,2-di(1-naphthyl)ethanes rather than decomposition products. The difference in reactivities of NpH and its derivatives can be attributed to their different molecular structures. |
|
| Keywords:naphthalene, naphthalene derivatives, hydroconversion reactivity, activated carbon |
|
