Patent ID: 6596912
Filing Date: 2003-07-22
Classification: C07C,Y02P,Y10S

Abstract:
A process for producing C4+ aliphatic hydrocarbons in high yields from methane comprising the steps of:providing a stream of methane and a stream of O2; conveying the stream of methane and stream of O2 to an oxidative coupling reactor; converting the methane to ethylene in the presence of a catalyst comprising Mn, Na2WO4, and SiO2 in the oxidative coupling reactor thereby producing an ethylene-containing product stream; conveying the ethylene-containing product stream to a catalytic reactor; oligomerizing the ethylene in the catalytic reactor by reacting the ethylene over an acidic pentasil zeolite catalyst to produce an end product-containing stream, said end product-containing stream comprising hydrocarbons having four or more carbons; removing the hydrocarbons having four or more carbons from the end product-containing stream leaving an effluent stream; and recycling the effluent stream through the oxidative coupling reactor.