Patent ID: 8895795

Claim:
An olefin metathesis process comprising: contacting a hydrocarbon feedstock with a catalyst comprising tungsten disposed on a support comprising silica that is acid washed, wherein the catalyst is acid washed with sulfuric acid, and wherein the acid concentration in the aqueous solution used for acid washing is greater than 0.05 molar, and wherein the support has an average pore diameter between 45 Å to 170 Å, and an average surface area between 250 m2/g to 600 m2/g, wherein the hydrocarbon feedstock comprises olefins including a first olefin and a second olefin having a carbon number of at least two greater than that of the first olefin, to produce a third olefin having an intermediate carbon number, and wherein the molar ratio of the first olefin to the second olefin is from about 0.5:1 to about 2:1.