It was found that the catalytic performance of Mo/HZSM-5 catalyst in methane dehydroaromatization(MDA) was strongly dependent on the dispersion of Mo species on the HZSM-5 zeolite.

The dehydroaromatization reactions of 2-substituted- 1,2-dihydroquinolines, 2-methyl- 2,3-dihydroindole, 1,4-dihydropyridines and 3,4-dihydroisoquinoline were investigated using iridium complexes with P-P or N-P ligands prepared in situ.

The pretreatment with HNO 3 solution was applied to modify HZSM-5 zeolite, and the Mo/HZSM-5 catalyst prepared by using the modified HZSM-5 zeolite as support showed higher stability in methane dehydroaromatization than that prepared by using unmodified HZSM-5 zeolite.

Methane Dehydroaromatization over Mo/HZSM-5 Catalysts:Effect of Streaming-treatment;

The 4-substituented group will be lost during aromatization when it is a secondary alkyl.

Progress in methane dehydro-aromatization under the condition of oxyger free;

Combining the 1H MAS NMR, XPS, XRF and TG measurements with the catalyst evaluation, the effect of silanation of HZSM-5 zeolite on the catalytic performance of the Mo/HZSM-5 catalyst in methane dehydro-aromatization was investigated.

Methane dehydro-aromatization (MDA) under non-oxidative conditions was carried out over the Mo/MCM-22 catalyst modified by Co additive, and the results suggested that the addition of Co dramatically improved the activity and stability of Mo/MCM-22.

The effects of particle size of HZSM 5 zeolite and silicon sources for preparation of HZSM 5 on the reaction performance of methane dehydro aromatization over Mo/HZSM 5 catalyst were studied by changing the synthesis conditions and systems.

Methane aromatization performance of different 6Mo/HZSM\|5 catalysts, which were prepared by changing the conditions of preparation, was investigated under the reaction conditions of t=700 ℃, P=0.