Diesel fuel composition

Patent metadata

Field	Value
Publication number	US-2022145196-A1
Application number	US-202017602186-A
Country	US
Kind code	A1
Filing date	Apr 7, 2020
Priority date	Apr 10, 2019
Publication date	May 12, 2022
Grant date	—

Abstract

A diesel fuel composition as disclosed includes a fossil diesel component, a fatty acid methyl esters component, and a hydrotreated renewable paraffinic diesel component. A method is disclosed for producing the diesel composition and use thereof. Use of the hydrotreated renewable paraffinic diesel component as an oxidation stability improver is further disclosed.

First claim

1 . A diesel fuel composition comprising:
a. a fossil diesel component at least 20 vol-% of a total diesel fuel composition volume, the fossil diesel component having a boiling point range within a temperature range 150-400° C. measured according to EN-ISO-3405:2011; b. a fatty acid methyl esters (FAME) component 2-10 vol-% of the total diesel fuel composition volume; c. a hydrotreated renewable paraffinic diesel component 30-70 vol-% of the total diesel fuel composition volume, wherein the hydrotreated renewable paraffinic diesel component containing at least 70 wt-% paraffins in a range of carbon number C15-C18 of a total weight of paraffins in the hydrotreated renewable paraffinic diesel component; and d. antioxidant 10-1000 ppm by weight of the diesel fuel composition weight; wherein a total amount of the fossil diesel component, the FAME component, and the hydrotreated renewable paraffinic diesel component is at least 99 vol-% of the total diesel fuel composition volume.

2 . The diesel fuel composition according to claim 1 , comprising:
hydrotreated renewable paraffinic diesel component 30-60 vol-% of the total diesel fuel composition volume.

3 . The diesel fuel composition according to claim 1 , comprising,
fossil diesel component at least 30 vol-% of the total diesel fuel composition volume.

4 . The diesel fuel composition according to claim 1 , wherein the hydrotreated renewable paraffinic diesel component comprises,
paraffins at least 90 wt-% of the total weight of the hydrotreated renewable paraffinic diesel component.

5 . The diesel fuel composition according to claim 1 , wherein the hydrotreated renewable paraffinic diesel component comprises:
naphthenes at most 5.0 wt-% of the total weight of the hydrotreated renewable paraffinic diesel component.

6 . The diesel fuel composition according to claim 1 , wherein the hydrotreated renewable paraffinic diesel component comprises:
paraffins in a range of carbon number C15-C18 at least 80 wt-% of the total weight of paraffins in the hydrotreated renewable paraffinic diesel component.

7 . The diesel fuel composition according to claim 1 , wherein the hydrotreated renewable paraffinic diesel component comprises:
i-paraffins and n-paraffins in a weight ratio of i-paraffins to n-paraffins of at least 2.2.

8 . The diesel fuel composition according to claim 1 , wherein the fossil diesel component is fossil middle distillate originating from non-renewable sources and having a boiling point range within a temperature range from 180 to 360° C.

9 . The diesel fuel composition according to claim 1 , herein the fossil diesel component comprises:
10-50 wt-% naphthenics, less than 45 wt-% aromatics, and 10-70 wt-% paraffins of a total weight of the fossil diesel component.

10 . The diesel fuel composition according to claim 1 , comprising:
antioxidant 70 ppm by weight.

11 . A method for producing a diesel fuel composition the method comprising:
providing a fossil diesel component; providing a hydrotreated renewable paraffinic diesel component; providing a fatty acid methyl esters (FAME) component; providing an antioxidant; and mixing the fossil diesel component, the hydrotreated renewable paraffinic diesel component, the FAME component, and the antioxidant with each other to form a diesel fuel composition containing, based on a total diesel composition volume, at least 20 vol-% fossil diesel component, the fossil diesel component having a boiling point range within a temperature range 150-400° C. measured according to EN-ISO-3405:2011; 30-70 vol-% hydrotreated renewable paraffinic diesel component, wherein the hydrotreated renewable paraffinic diesel component contains at least 70 wt-% paraffins in a range of carbon number C15-C18 of the total weight of paraffins in the hydrotreated renewable paraffinic diesel component; 2 vol-%-10 vol-% FAME component; and antioxidant 10-1000 ppm by weight of a diesel fuel composition weight.

12 . The method according to claim 11 , wherein providing a hydrotreated renewable paraffinic diesel component comprises:
i. providing a feedstock originating from renewable sources, the feedstock containing fatty acids, or fatty acid derivatives, or triglycerides, or a combination thereof; ii. subjecting the feedstock to hydrotreatment to produce n-paraffins; and optionally; iii. subjecting at least a portion of the n-paraffins from step ii) to an isomerisation treatment to produce i-paraffins.

13 . The method according to claim 11 , comprising:
mixing the antioxidant with the fossil diesel component, the renewable paraffinic diesel component, and the FAME component to form a diesel fuel composition containing 70 ppm by weight, antioxidant.

14 . The method according to claim 11 , wherein the provided FAME component comprises:
10-5000 ppm by weight antioxidant.

15 . (canceled)

16 . A method of using a diesel fuel composition according to claim 11 , the method comprising:
producing the diesel fuel composition as a heating oil.

17 . A method for improving oxidation stability of a fuel composition containing a fossil diesel component and a fatty acid methyl esters (FAME) component a hydrotreated renewable paraffinic diesel component, the method comprising:
adding a hydrotreated renewable paraffinic diesel component to the fuel composition to form a combined fuel composition containing 30-70 vol-% renewable paraffinic diesel component of a total combined fuel composition volume.

18 . The method according to claim 17 , wherein the hydrotreated renewable paraffinic diesel component comprises:
at least 70 wt-% paraffins in a range of carbon number C15-C18 of a total weight of paraffins in the hydrotreated renewable paraffinic diesel component.

19 . The method according to claim 17 , wherein the combined fuel composition has a higher oxidation stability measured according to EN 16091:2011 compared to the components of the combined diesel fuel composition.

20 . The method according to claim 17 , wherein the combined fuel composition comprises:
at least 20 vol-% fossil diesel component; and 2-10 vol-% FAME component of the total combined fuel composition volume.

21 . The method according to claim 17 , wherein the total amount of the fossil diesel component, the FAME component, and the hydrotreated renewable paraffinic diesel component is at least 99 vol-% of the total combined diesel fuel composition volume.

Assignees

• Neste Oyj

Inventors

• Kiiski Ulla
• Nortio Jenni
• Kuronen Markku

Classifications

• C10L2200/0476

  Biodiesel, i.e. defined lower alkyl esters of fatty acids first generation biodiesel · CPC title

• C10L1/10

  containing additives · CPC title

• C10L2200/0469

  Renewables or materials of biological origin · CPC title

• C10L2200/0446

  Diesel · CPC title

• C10L2230/081

  Anti-oxidants · CPC title