Patent ID: 7802423

Claim:
A method comprising: converting in the presence of a catalyst composition, a heavy hydrocarbon molecule having 13 or more carbon atoms per molecule into a light hydrocarbon molecule having 12 or less carbon atoms per molecule; wherein the catalyst composition comprises sites that perform a cracking function and sites that perform a catalytic partial oxidation function, wherein the cracking function enables the conversion of the heavy hydrocarbon molecules to light hydrocarbon molecules, and wherein the catalytic partial oxidation function enables oxidation of a hydrocarbon based fossil fuel and coke that is deposited on the catalyst composition; separating the light hydrocarbon molecules from heavy hydrocarbon molecules by condensing the heavy hydrocarbons into a condensate; reacting the light hydrocarbon molecules with an exhaust stream of an engine in the presence of a selective catalytic reduction catalyst; and reducing NO x content in the exhaust stream.