| 초록 |
Methane has been receiving much attention as an alternative fuel by converting methane to more valuable hydrocarbon products through direct method under nonoxidative condition. Among various nonoxidative reactions, methane dehydroaromatization (MDA) reaction is regarded as a promising way because it is more thermodynamically favorable in converting methane into benzene than other products. In this study, a series of Mo(5)/H-MCM-22 catalysts with various Si/Al2 ratios were prepared by using hydrothermal synthesis and impregnation method. The catalysts were applied to MDA reaction and various characterizations such as N2 adsorption-desorption, ICP-AES, XRD, SEM, NH3 TPD, XPS, UV-Raman and TPO. Thus, we aimed at investigating the interaction of Mo oxide species with Brønsted acid site and the formation of carbonaceous deposit specifically with changing the Si/Al2 ratios of MCM-22 zeolite. Moreover, we tried to examine effect of such characteristics on MDA reaction. |
