Synthe sis of Mo/ZSM-۵/H MS bipor ous catal ysts with t he high st ability fo r dehy droarom atization and cataly tic conver sion of methane to benzene

The reaction of methane dehydroaromatization is an interesting process for conversion of natural g as to the aromatics [۱, ۲]. In this way, methane can be selectively converted to aromatics such as benzene and naphthale ne in the absence of oxygen.Mo/HZSM-۵ an d W/HZS M-۵ have more activity for this reaction a mong the transition metal catalysts supported on HZSM -۵. It has been found that methane activation occurs on the reduce d Mo/Wspecies. Howe ver the main problem of these cata lysts is fast deactivation due to co ke depositio n on the channels of zeolite [۳]. In this paper we have synthesize d micro/m esoporous combined materials usi ng zeolite particles an d hexagonal mesoporo us silicate (HMS) as a new support for Mo catalysts and i nvestigated their catalytic activity for conversi on of metha ne to benzen e.

کلیدواژه ها:

Biporous catalysts ، D ehydroarom atization ، M ethane ، Be nzene