Marine fuel blend

Patent metadata

Field	Value
Publication number	US-12060529-B2
Application number	US-201917297713-A
Country	US
Kind code	B2
Filing date	Nov 13, 2019
Priority date	Nov 28, 2018
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

A marine fuel blend comprising renewable hydrotreated fuel is disclosed. The present marine fuel blend is environmentally friendly and has good pour point and storage stability.

First claim

The invention claimed is:

1. A marine fuel blend comprising:
a DMB type or RMB type marine fuel having a density between 860 and 960 kg/m 3 at 15° C.; and
the marine fuel blend also having 0.5-50 vol-% of a renewable hydrotreated fuel, wherein the renewable hydrotreated fuel includes paraffinic components in a carbon number range C 15 -C 18 , said paraffinic components constituting at least 70 vol-% of the renewable hydrotreated fuel; and
wherein the marine fuel blend has a pour point which is at least 3° C. lower than a calculated pour point expressed as a weighted average of pour points of the marine fuel and the renewable hydrotreated fuel; and
wherein the marine fuel blend has an oxidation stability which is higher than a calculated oxidation stability expressed as a weighted average of oxidation stability values of the marine fuel and the renewable hydrotreated fuel, and wherein the oxidation stability is calculated as defined in EN16091 (2011).

2. The marine fuel blend of claim 1 , wherein the renewable hydrotreated fuel comprises:
paraffinic components in a carbon number range C 15 -C 18 , said paraffinic components constituting at least 80 vol-% of the renewable hydrotreated fuel.

3. The marine fuel blend of claim 1 , having a sulphur content of 0.5 wt-% or less.

4. The marine fuel blend of claim 1 , having a kinematic viscosity of max 6 cSt at 40° C., density of max 900 kg/m 3 and a pour point of 6° C. or less, and being a DMB type marine fuel.

5. The marine fuel blend of claim 1 , having kinematic viscosity of max 30 cSt at 50° C., density of max 960 kg/m 3 and pour point of 30° C. or less, and being a RMB type marine fuel.

6. The marine fuel blend of claim 1 , comprising:
0.5-30 vol-% renewable hydrotreated fuel.

7. The marine fuel blend of claim 1 , wherein the renewable hydrotreated fuel comprises:
paraffinic components in a carbon number range C 15 -C 18 , said paraffinic components constituting at least 90 vol-% of the renewable hydrotreated fuel.

8. The marine fuel blend of claim 1 , having a sulphur content of 0.1 wt-% or less.

9. The marine fuel blend of claim 1 , comprising:
0.5-10 vol-% renewable hydrotreated fuel.

10. The marine fuel blend of claim 1 , having a kinematic viscosity of max 6 cSt at 40° C., density of max 900 kg/m 3 and a pour point of 6° C. or less.

11. The marine fuel blend of claim 1 , having kinematic viscosity of max 30 cSt at 50° C., density of max 960 kg/m 3 and pour point of 30° C. or less.

12. The marine fuel blend of claim 1 , wherein the renewable hydrotreated fuel is comprised of a hydrotreated vegetable oil, a hydrotreated wood, a hydrotreated plant-based oil, a hydrotreated animal fat, a hydrotreated fish fat, a hydrotreated fish oil, a hydrotreated algae oil, a hydrotreated microbial oil, or a combination thereof.

13. The marine fuel blend of claim 1 , wherein there is between 30 vol-% and 50 vol-% of the renewable hydrotreated fuel in the marine fuel blend.

14. The marine fuel blend of claim 1 , wherein there is between 5 wt % and 30 wt % of the renewable hydrotreated fuel in the marine fuel blend.

15. The marine fuel blend of claim 1 , wherein there the marine fuel blend does not contain any cold flow additives.

16. The marine fuel blend of claim 15 , wherein the renewable hydrotreated fuel is comprised of a hydrotreated vegetable oil, a hydrotreated wood, a hydrotreated plant-based oil, a hydrotreated animal fat, a hydrotreated fish fat, a hydrotreated fish oil, a hydrotreated algae oil, a hydrotreated microbial oil, or a combination thereof.

Assignees

• Neste Oyj

Inventors

• Kiiski Ulla
• Kouva Merja
• Kuronen Markku
• Nortio Jenni

Classifications

• C10L2270/026

  for diesel engines, e.g. automobiles, stationary, marine · CPC title

• C10L2200/0469

  Renewables or materials of biological origin · CPC title

• C10L2200/0438

  Middle or heavy distillates, heating oil, gasoil, marine fuels, residua · CPC title

• C10L1/08 Primary

  for compression ignition · CPC title

• Y02E50/10

  Biofuels, e.g. bio-diesel · CPC title