LOW-TEMPERATURE NONOXIDATIVE ACTIVATION OF METHANE OVER H-GALLOALUMINOSILICATE (MFI) ZEOLITE

Conversion of methane to higher hydrocarbons by its low-temperature ac tivation without forming undesirable carbon oxides is of great scienti fic and practical importance. Methane can be highly activated, yieldin g high rates of conversion to higher hydrocarbons and aromatics (10 to 45 percent) at low temperatures (400 degrees to 600 degrees C), by it s reaction over H-galloaluminosilicate ZSM-5 type (MFI) zeolite in the presence of alkenes or higher alkanes. The methane activation results from its hydrogen-transfer reaction with alkenes.