Blends of synthetic diesel fuel and petroleum diesel fuel with improved performance characteristics
AssigneeGreyrock Energy, Inc.
InventorsRobert Schuetzle, Dennis Schuetzle
Life of this patent
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Abstract
The present invention provides a blended fuel and methods for producing the blended fuel, wherein a synthetic fuel derived from a alternative resources such as natural gas, associated gas, biomass, or other feedstocks is blended with a traditional, petroleum derived fuel. A blended fuel which includes greater than 5% by volume of the synthetic fuel has an overall improved lifecycle greenhouse gas content of about 2.5% or more compared to the petroleum derived fuel. Also, blending of the low carbon fuel to the traditional, petroleum fuel improves various performance characteristics of the traditional fuel by at least 5%.
Claims21
A blended fuel comprising:
- (a) about 5% to about 95%, by volume, of a petroleum fuel;
- and
- (b) about 95% to about 5%, by volume, of a synthetic fuel produced from a natural gas feedstock, using a thermochemical or biochemical conversion process:
- wherein the synthetic fuel has a well-to-wheels greenhouse gas content which is at least about 20% lower than a well-to-wheels greenhouse gas content of the petroleum fuel, and the synthetic fuel has at least two performance characteristic values measurable by ASTM tests which are at least about 40% improved than corresponding performance characteristic values of the petroleum fuel;
- and
- wherein the blended fuel has a well-to-wheels greenhouse gas content which is at least 1% lower than the well-to-wheels greenhouse gas content of the petroleum fuel, and the blended fuel has at least two performance characteristic values measurable by ASTM tests which are at least about 2% improved than corresponding performance characteristic values of the petroleum fuel.
A process for producing a blended fuel comprising:
- converting a natural gas feedstock into a syngas;
- reacting the syngas with a catalyst to produce a synthetic fuel;
- and
- blending about 5% to about 95%, by volume, of the synthetic fuel with about 5% to about 95%, by volume, of a petroleum fuel,
- wherein the synthetic fuel has a cetane number of greater than about 65, and the synthetic fuel has a lubricity value which is less than about 450 microns by HFRR at 60° C. (scar) measured by ASTM D 6079.
A fuel blend, wherein the fuel blend is produced by blending a petroleum derived diesel fuel with a synthetic diesel fuel, wherein the synthetic diesel fuel is produced directly from the catalytic conversion of syngas and which does not require hydro-cracking of wax.
Dependencies are inferred from the claim text.