Conversion of mixtures of methane and acetylene or ethylene into higher molecular weight hydrocarbons over metal-loaded and unloaded HZSM-5 zeolite catalysts

A mixture of acetylene and hydrogen was reacted over HZSM-5 zeolite catalyst at 200 °C to produce ethylene. A stream containing ethylene and methane was then reacted over gallium-loaded and copper-loaded ZSM-5 to produce higher molecular weight hydrocarbons. The effect of co-feeding methanol or chloroform on the product distribution was also investigated. On the other hand, a mixture of acetylene and methane was reacted over metal-loaded ZSM-5 catalysts to produce higher molecular weight hydrocarbons with a carbon number of five and more. Palladium, platinum, and nickel were among the transition metals tested.