Patent ID: 7041864

Claim:
A method for making unsaturated hydrocarbons, said method comprising: providing a mixture comprising one or more cyclic unsaturated hydrocarbons and an excess of one or more non-cyclic unsaturated hydrocarbons wherein the molar ratio of non-cyclic unsaturated hydrocarbons to cyclic unsaturated hydrocarbons is from about 5:1 to about 3:1, said cyclic unsaturated hydrocarbons having a ΔG of less than 0 at 25° C. and comprising a ring structure comprising x carbon atoms and; exposing said mixture to conditions effective to cross metathesize said one or more cyclic unsaturated hydrocarbons with said one or more non-cyclic unsaturated hydrocarbons to produce primarily non-cyclic unsaturated product hydrocarbons comprising a single molecule of said cyclic unsaturated hydrocarbons and having more than x carbon atoms.