Coimpregnated, Sequential, and Reverse Sequential Li/Sr/SiO2 Catalysts for the Oxidative Coupling of Methane in the Absence and Presence of Tetrachloromethane: Active, Selective, and Stable Catalysts

摘要: Binary lithium and strontium catalysts supported on silica are prepared by coimpregnation, sequential, reverse sequential methods compared in the oxidative coupling of methane to ethane ethylene for various loadings absence presence tetrachloromethane (TCM) feedstream. The 10% Li/10% Sr/SiO 2 catalyst produces C 2+ yields up 29% is stable times on-stream at least 600 h. high yield stability attributed formation silicates which resistant temperatures destructive gaseous environments.