Methane Direct Conversion on Mo/ZSM-5 Catalysts Modified by Pd and Ru  

作　　者：Priscila Dias Sily Fabio Bellot Noronha Fabio Barboza Passos 

机构地区：[1]Departamento de Engenharia Química,Universidade Federal Fluminense,Rua Passo da Pátria,156 Niterói -RJ CEP 24210-240,Brazil [2]Instituto Nacional de Tecnologia,Av. Venezuela 82,Rio de Janeiro -RJ CEP 20081-312,Brazil [3]Departamento de Engenharia Química,Universidade Federal Fluminense,Rua Passo da Pátria,156 Niterói-RJ CEP 24210-240,Brazil

出　　处：《Journal of Natural Gas Chemistry》2006年第2期82-86,共5页天然气化学杂志（英文版）

基　　金：Financial support from CNPq, FINEP, PETROBRAS and FAPERJ.

摘　　要：The effect of addition of Ru and Pd to Mo/HZSM-5 catalysts used in the dehydroaromatization of methane was investigated. Catalytic tests and temperature-programmed oxidation results showed that Pd-based catalysts were more selective to naphthalene and suffered strong deactivation. The presence of Ru improved the activity and stability, with a decrease in the carbonaceous deposit probably because of a mechanism of protection of the Mo2C surface.The effect of addition of Ru and Pd to Mo/HZSM-5 catalysts used in the dehydroaromatization of methane was investigated. Catalytic tests and temperature-programmed oxidation results showed that Pd-based catalysts were more selective to naphthalene and suffered strong deactivation. The presence of Ru improved the activity and stability, with a decrease in the carbonaceous deposit probably because of a mechanism of protection of the Mo2C surface.

关 键 词：METHANE PD RU Mo ZSM-5 DEHYDROAROMATIZATION 

分 类 号：O643.36[理学—物理化学]