An unleaded gasoline composition comprises, based on the total volume of the unleaded gasoline composition, 50 to 96 vol. % of an unleaded gasoline; 2 to 20 vol. % of a mixed butanol; and 2 to 30 vol. % of a distillate oil fraction comprising a paraffin, an olefin, a naphthene, and an aromatic at an initial boiling point cut of 180° C., wherein the unleaded gasoline, the mixed butanol, and the distillate oil fraction are selected to provide the unleaded gasoline composition with a Research Octane Number of 90 to 101, determined in accordance with ASTM D 2699; and a Motor Octane Number of 81.4 to 90, determined in accordance with ASTM D 2700.

An unleaded gasoline composition comprises, based on the total volume of the unleaded gasoline composition, 50 to 96 vol. % of an unleaded gasoline; 2 to 20 vol. % of a mixed butanol; and 2 to 30 vol. % of a distillate oil fraction comprising a paraffin, an olefin, a naphthene, and an aromatic at an initial boiling point cut of 180° C., wherein the unleaded gasoline, the mixed butanol, and the distillate oil fraction are selected to provide the unleaded gasoline composition with a Research Octane Number of 90 to 101, determined in accordance with ASTM D 2699; and a Motor Octane Number of 81.4 to 90, determined in accordance with ASTM D 2700.

A fuel composition for a spark-ignition internal combustion engine comprises naphtha in an amount of at least 5% by volume, and an octane-boosting additive having the formula: (I) The well-to-wheel greenhouse gas emissions associated with the fuel composition are significantly lower than those associated with a conventional gasoline fuel of comparable performance.

A fuel composition for a spark-ignition internal combustion engine comprises naphtha in an amount of at least 5% by volume, and an octane-boosting additive having the formula: (I) The well-to-wheel greenhouse gas emissions associated with the fuel composition are significantly lower than those associated with a conventional gasoline fuel of comparable performance.

A novel octane enhanced intermediate hydrocarbon composition having a high bio-component content in the composition through the use of a renewable first gasoline component is herein disclosed. The intermediate hydrocarbon composition includes a renewable first gasoline component in an amount of from 5 to 50%-vol of the total intermediate hydrocarbon composition volume and the rest consisting of a second gasoline component, wherein the second hydrocarbon gasoline component includes unsaturated hydrocarbons from 50 to 90%-vol of the second gasoline component volume.

A novel octane enhanced intermediate hydrocarbon composition having a high bio-component content in the composition through the use of a renewable first gasoline component is herein disclosed. The intermediate hydrocarbon composition includes a renewable first gasoline component in an amount of from 5 to 50%-vol of the total intermediate hydrocarbon composition volume and the rest consisting of a second gasoline component, wherein the second hydrocarbon gasoline component includes unsaturated hydrocarbons from 50 to 90%-vol of the second gasoline component volume.

The present invention relates to the field of gasoline and gasoline compositions or blends. More specifically the invention relates to a novel fuel or gasoline composition with synergistic effects and use thereof, and in particular a synergistic effect with respect to the octane rating/octane number.

The present invention relates to the field of gasoline and gasoline compositions or blends. More specifically the invention relates to a novel fuel or gasoline composition with synergistic effects and use thereof, and in particular a synergistic effect with respect to the octane rating/octane number.

A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a hydrogenation unit producing a hydrogenated stream; passing the hydrogenated stream through a distillation unit producing a first stream and a second stream; producing an isobutylene stream by passing the first stream through a molecular sieve unit; passing the isobutylene stream to a hydration unit as a feedstock for the fuel additive; and forming the fuel additive in the hydration unit.

A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a hydrogenation unit producing a hydrogenated stream; passing the hydrogenated stream through a distillation unit producing a first stream and a second stream; producing an isobutylene stream by passing the first stream through a molecular sieve unit; passing the isobutylene stream to a hydration unit as a feedstock for the fuel additive; and forming the fuel additive in the hydration unit.