Reduced emissions transportation fuel
AssigneeSunoco, Inc.
InventorsHelen M. Doherty, H. Randolph Roehl
Life of this patent
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Abstract
Transportation fuels are provided that have reduced toxics, VOC and NOx emissions, as well as, reduced sulfur content. The transportation fuels provided meet emissions reduction requirements determined by using the EPA Complex Model and for reduced sulfur. Reduction in sulfur content allows the use of components with high concentrations of olefins, while still reducing toxics, hydrocarbon (VOCs) and NOx emissions to acceptable levels.
Claims15
A transportation fuel having the following properties;
- a) sulfur content of less than about 300 ppm,
- b) an octane rating of less than about 94,
- c) a 50% D-86 distillation point of greater than about 215° F.,
- d) a 90% D-86 distillation point of less than about 360° F.,
- e) an olefins content of less than about 25%, and
- f) a Reid Vapor Pressure of less than 7.5.
A transportation fuel having the following properties;
- a) sulfur content of less than about 300 ppm,
- b) an octane rating of less than about 94,
- c) a 50% D-86 distillation point of less than about 235° F.,
- d) a 90% D-86 distillation point of greater than about 31 5° F.,
- e) an olefins content of less than about 25%,
- f) a Reid Vapor Pressure of less than 7.5.
A transportation fuel having the following properties;
- a) sulfur content of less than about 300 ppm,
- b) an octane rating of less than about 94,
- c) a 50% D-86 distillation point of less than about 235° F.,
- d) a 90% D-86 distillation point of less than about 360° F.,
- e) an olefins content of greater than about 15%,
- f) a Reid Vapor Pressure of less than 7.5.
A blend stock suitable for blending with an oxygenating component to produce a transportation fuel, said blend stock having the following properties;
- a) sulfur content of less than about 300 ppm,
- b) an octane rating of at least 83.5,
- c) a 50% D-86 distillation point of less than about 232° F.,
- d) a 90% D-86 distillation point of greater than about 360° F.,
- e) an olefins content of less than about 21%,
- f) a Reid Vapor Pressure of less than 7.5.
Dependencies are inferred from the claim text.