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US 2025/0101318 A1Published application
Method for producing renewable fuels
AssigneeNeste Oyj
InventorsTeemu SARJOVAARA, Riikka-Mari HAARA, Merja KOUVA, Ulla KIISKI, Jesse VILJA
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Abstract
The present disclosure provides a marine fuel component produced from feedstock of biological origin and a method for producing the same. The present disclosure provides marine fuel blends containing the marine fuel component of biological origin and at least one additional marine fuel.
Claims24
1-23. (canceled)
A method for combined production of aviation fuel and marine fuel both of biological origin, the method comprising:
- providing feedstock of biological origin containing fatty acids and/or esters of fatty acids;
- subjecting the feedstock to hydrotreatment and isomerization to obtain a paraffinic hydrocarbon intermediate;
- fractionating said paraffinic hydrocarbon intermediate into at least two fractions, a lighter fraction fulfilling the specification ASTM D7566-20 Annex A2 for aviation fuel, and a heavier fraction fulfilling the specifications of ISO 8217 (2017) for marine fuel;
- and
- adjusting production capacity of the lighter fraction and production capacity of the heavier fraction by selection of process conditions, and/or isomerization process conditions, wherein yield of the lighter fraction is 60-90 wt-% of a total weight of the formed fractions, and yield of the heavier fraction is 10-40 wt-% of the total weight of the formed fractions;
- wherein a combined yield of the two fractions is at least 98 wt-% of the paraffinic hydrocarbon intermediate of biological origin.
3 more elements
A marine fuel component of biological origin comprising:
- 0-5 wt-% of n-paraffins in C16-C20 range;
- and
- 90-97 wt-% isoparaffins in C16-C20 range, with from 20 wt-% to 45 wt-% of C17 paraffins and from 50 wt-% to 75 wt-% of C18 paraffins.
Dependencies are inferred from the claim text.