Diesel fuel formulation for reduced emissions

Details Diesel fuel formulation for reduced emissions Diesel fuel formulation for reduced emissions

2007-04-24

2007-04-24

McAvoy, Ellen M. (Department: 1764)

Mineral oils: processes and products

Products and compositions

Fuels

C044S300000, C585S014000

Reexamination Certificate

active

10393167

ABSTRACT:
The invention is directed to a method and formula for producing a fuel having reduced particulate emissions from an internal combustion engine. The fuel taught herein is characterized as having a cetane number ranging from about 45 to about 65, a T95distillation property of less than about 370° C., and having NR, AR, cetane number and T95defined by the relation:in-line-formulae description="In-line Formulae" end="lead"?PEI=156+Z1×(cetane#−49)+Z2×(NR−14)+Z3×(AR−25)+Z4×(T95−315° C.)in-line-formulae description="In-line Formulae" end="tail"?WhereZ1ranges from abut 0.67 to about 1.06,Z2ranges from about 0.9 to about 1.28,Z3ranges from about 2.54 to about 2.80,Z4ranges from about 0.1 to about 0.4,NR is a defined correlation of the naphthene rings content in the fuel, andAR is a defined correlation of the aromatic rings content in the fuel.

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