Patent ID: 8232437
Filing Date: 2012-07-31
Classification: C10L

Abstract:
1. A method of reducing emissions of exhaust gases in the combustion of an unleaded gasoline fuel of Motor Octane Number (MON) at least 80 and comprising less than 42% of aromatic compounds, which method comprises including in said gasoline at least 10% of component (a′), wherein component (a′) is at least one of: (i′) a substantially aliphatic hydrocarbon refinery stream of MON at least 85, at least 70% in total of said stream being branched chain alkanes, and wherein said stream is obtained from a refinery material as a distillation cut having Initial Boiling Point of at least 15° C. and a Final Boiling Point of at most 160° C., said Boiling Points being measured according to ASTMD2892, and (ii′) at least one branched chain alkane of MON at least 90 and boiling point in the range of 15-160° C., wherein said branched chain alkane is not 2,2,3-trimethylbutane or 2,2,3-trimethylpentane.