Renewable marine fuel and method of production

Patent metadata

Field	Value
Publication number	US-12516259-B2
Application number	US-202318838121-A
Country	US
Kind code	B2
Filing date	Mar 7, 2023
Priority date	Mar 7, 2022
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

The present invention relates to a composition comprising, on water free basis, at least 80 wt % molecules comprising from 8 to 35 C-atoms, said composition having a flash point above 60° C. and comprising, on water free basis, 9.5-12 wt % H, 3-45 wt % O and less than 5 wt ppm halogens, the use of such a composition as a marine fuel and a process for producing such a composition by partial hydrodeoxygenation.

First claim

The invention claimed is:

1 . A composition comprising, on a water free basis, at least 80 wt % molecules having from 8 to 35 C-atoms, said composition having a flash point above 60° C. and comprising, on a water free basis, 9.5-12 wt % H, 3-45 wt % O and less than 5 wt ppm halogens,
said composition having total acidity number above 15 mg KOH/g.

2 . A composition according to claim 1 , having a viscosity at 50° C. below 850 mm 2 /s.

3 . A composition according to claim 1 , having a density at 15° C. of 870 kg/m 3 to 1300 kg/m 3 .

4 . A composition according to claim 1 , having a strong acid number measured by KOH titration at the inflection point of pKa=4 below 0.1 mg KOH/g.

5 . A composition according to claim 1 , comprising less than 5 wt % water.

6 . A composition according to claim 1 , comprising at least 1 wt % phenols.

7 . A composition according to claim 1 , wherein the product has a 14 C isotope content above 0.5 pptwt of the total carbon content.

8 . A marine fuel comprising at least 10 wt % of the composition according to claim 1 .

9 . A method of using a composition according to claim 1 as fuel in a marine engine, comprising a step of supplying the composition according to claim 1 to the marine engine.

10 . A composition comprising, on a water free basis, at least 80 wt % molecules having from 8 to 35 C-atoms, said composition having a flash point above 60° C. and comprising, on a water free basis, 9.5-12 wt % H, 3-45 wt % O and less than 5 wt ppm halogens,
said composition having a carboxylic acidity number measured according to NREL/TP-5100-65890 being below 2.5 mg KOH/g.

11 . A composition according to claim 10 , having a viscosity at 50° C. below 850 mm 2 /s.

12 . A composition according to claim 10 , having a density at 15° C. of 870 kg/m 3 to 1300 kg/m 3 .

13 . A composition according to claim 10 , having a strong acid number measured by KOH titration at the inflection point of pKa=4 below 0.1 mg KOH/g.

14 . A composition according to claim 10 , comprising less than 5 wt % water.

15 . A composition according to claim 10 , comprising at least 1 wt % phenols.

16 . A composition according to claim 10 , wherein the product has a 14 C isotope content above 0.5 pptwt of the total carbon content.

17 . A marine fuel comprising at least 10 wt % of the composition according to claim 10 .

18 . A method of using a composition according to claim 10 as fuel in a marine engine, comprising a step of supplying the composition according to claim 3 to the marine engine.

19 . A process for production of a composition comprising, on a water free basis, at least 80 wt % molecules having from 8 to 35 C-atoms, said composition having a flash point above 60° C. and comprising, on a water free basis, 9.5-12 wt % H, 3-45 wt % O and less than 5 wt ppm halogens,
said process involving the step of directing a renewable liquid hydrocarbonaceous feedstock comprising at least 5 wt % oxygen in oxygenates to contact a hydrotreatment catalyst under conditions affecting from 10% to 90% conversion of oxygen in oxygenates to water, carbon dioxide and/or carbon monoxide.

20 . A process according to claim 19 wherein the hydrocarbonaceous feedstock is the product of a thermochemical decomposition process.

Assignees

• Topsoe As

Inventors

• Andersen Stefan
• Stummann Magnus Zingler
• Navid Asad

Classifications

• C10L2290/02

  Combustion or pyrolysis · CPC title

• C10L2270/026

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

• C10L1/02 Primary

  essentially based on components consisting of carbon, hydrogen, and oxygen only · CPC title