Catalytic performance of MCM-22 zeolite for alkylation of toluene with methanol

Kinetics of toluene methylation over USY-zeolite catalyst in a riser simulator

“…In addition to the formation of negligible amount of benzene, toluene methylation has the added advantage of using a cheaper and more abundant feedstock, methanol [3]. Therefore toluene methylation is seen as an alternative to both naphtha cracking and toluene disproportionation [4]. On this account, toluene methylation has been intensively studied as it is evident from the large number of publications on the topic.…”

Hydrocracking of the crude oil from thermal pyrolysis of municipal wastes over bi-functional Mo–Ni catalyst

“…In the conventional impregnation method for preparing the supported metal oxide catalysts [44][45][46][47], the Al 2 O 3 support impregnated with the aqueous solution of Ni(NO 3 ) 2 was dried at 393 K, and calcinated at 773 K to produce NiO/Al 2 O 3 (NiO was reduced to Ni in hydrogen before hydrocracking tests). Usually, the metal oxides in the form of small particles were obtained on the support.…”

Preparation of an MCM‐22/Hydrotalcite Framework Composite and Its Catalytic Application

“…Among the various zeolites, ZSM‐5 and MCM‐22 have medium pores and are known as promising shape‐selective catalysts for the selective preparation of p ‐xylene by various processes such as toluene alkylation, disproportionation of toluene, and m ‐xylene isomerization . In recent decades, significant improvement of C 8 selectivity was observed in toluene alkylation through different processes such as dealumination, substitution of metal ions, impregnation of oxides, and preparation of composites with MCM‐22 or ZSM‐5 materials . The modification processes cover the external acidic sites and adjust the pore entrance of MCM‐22 materials, also reducing side reactions such as multialkylation and dealkylation …”

“…In recent decades, significant improvement of C 8 selectivity was observed in toluene alkylation through different processes such as dealumination, substitution of metal ions, impregnation of oxides, and preparation of composites with MCM‐22 or ZSM‐5 materials . The modification processes cover the external acidic sites and adjust the pore entrance of MCM‐22 materials, also reducing side reactions such as multialkylation and dealkylation …”