High napthenic content marine fuel compositions
Marine diesel fuel/fuel blending component compositions and fuel oil/fuel blending component compositions are provided that are derived from crude oils having high naphthenes to aromatics volume and/or weight ratios and a low sulfur content. In addition to having a high naphthenes to aromatics ratio, a low sulfur content, and a low but substantial content of aromatics, such fuels and/or fuel blending components can have a reduced or minimized carbon intensity relative to fuels derived from conventional sources. The unexpected ratio of naphthenes to aromatics contributes to the fuels and/or fuel blending components further having additional unexpected properties, including low density, low kinematic viscosity, and/or high energy density.
1. A resid-containing fraction comprising a T90 distillation point of 550° C. or more, a kinematic viscosity at 50° C. of 40 cSt to 150 cSt, a sulfur content of 0.2 wt % or less, a BMCI of 40 or less, and a weight ratio of aliphatic sulfur to total sulfur of 0.2 or more.
2. The resid-containing fraction of claim 1 , wherein the resid-containing fraction comprises a weight ratio of naphthenes to aromatics of 1.5 or more.
3. The resid-containing fraction of claim 1 , wherein the resid-containing fraction comprises a weight ratio of basic nitrogen to total nitrogen of 0.2 or more; or wherein the resid-containing fraction comprises 5.0 wppm or more of sodium; or wherein the resid-containing fraction comprises 10 wppm or more of calcium; or a combination of two or more thereof.
4. The resid-containing fraction of claim 1 , wherein the resid-containing fraction comprises a flash point of 120° C. or more.
5. The resid-containing fraction of claim 1 , wherein the resid-containing fraction comprises a) an n-heptane insolubles content of 0.1 wt % or less, b) a density at 15° C. of 920 kg/m 3 or less, c) a naphthenes content of 30 wt % or more, d) a micro carbon residue content of 2.5 wt % or less, e) a combination of two or more of a)-d), or f) a combination of three or more of a)-d).
6. The resid-containing fraction of claim 1 , wherein the resid-containing fraction comprises a molar ratio of hydrogen to carbon of 1.80 or more, or wherein the resid-containing fraction comprises an energy content of 42.0 MJ/kg or more.
7. The resid-containing fraction of claim 1 , wherein the resid-containing fraction comprises a kinematic viscosity at 50° C. of 40 cSt to 120 cSt, or wherein the resid-containing fraction comprises a sulfur content of 0.1 wt % or less, or a combination thereof.
8. The resid-containing fraction of claim 1 , wherein the resid-containing fraction comprises a T95 distillation point of 550° C. or more, or wherein the resid-containing fraction comprises a final boiling point of 600° C. or more, or wherein the resid-containing fraction comprises a T10 distillation point of 350° C. or more, or a combination thereof.
9. The resid-containing fraction of claim 1 , wherein the resid-containing fraction comprises a resid-containing fraction derived from a shale oil.
10. The resid-containing fraction of claim 1 , wherein the resid-containing fraction is used as a fuel in an engine, a furnace, a burner, a combustion device, or a combination thereof.
11. The resid-containing fraction of claim 1 , wherein the resid-containing fraction has not been exposed to hydroprocessing conditions.
12. A fuel composition comprising 5 vol % to 60 vol % of a distillate fraction and 40 vol % to 95 vol % of a resid-containing fraction, the resid-containing fraction comprising a T90 distillation point of 550° C. or more, a kinematic viscosity at 50° C. of 40 cSt to 150 cSt, a sulfur content of 0.2 wt % or less, a BMCI of 40 or less, and a weight ratio of aliphatic sulfur to total sulfur of 0.2 or more.
13. The fuel composition of claim 12 , wherein the distillate fraction comprises a renewable distillate fraction.
14. The fuel composition of claim 13 , wherein the renewable distillate fraction comprises one or more of biodiesel, fatty acid alkyl ester, and hydrotreated vegetable oil; or wherein the renewable distillate comprises a distillate made, processed or a combination thereof using a renewable energy source; or wherein the renewable distillate comprises a distillate formed from processing of biologically derived waste, or a combination thereof.
15. The fuel composition of claim 12 , wherein the fuel composition comprises a pour point of 30° C. or less.
16. A method for forming a resid-containing fraction, comprising:
fractionating a whole crude or crude fraction to form a resid-containing fraction comprising a T90 distillation point of 550° C. or more, a kinematic viscosity at 50° C. of 40 cSt to 150 cSt, a sulfur content of 0.2 wt % or less, a BMCI of 40 or less, and a weight ratio of aliphatic sulfur to total sulfur of 0.2 or more.
17. The method of claim 16 , wherein the resid-containing fraction is formed without exposing the resid-containing fraction to hydroprocessing conditions.
18. The method of claim 16 , wherein the resid-containing fraction comprises a weight ratio of naphthenes to aromatics of 1.5 or more.
19. The method of claim 16 , wherein the resid-containing fraction comprises a weight ratio of basic nitrogen to total nitrogen of 0.2 or more; or wherein the resid-containing fraction comprises 5.0 wppm or more of sodium; or wherein the resid-containing fraction comprises 10 wppm or more of calcium; or a combination of two or more thereof.
20. The method of claim 16 , wherein the resid-containing fraction comprises a flash point of 120° C. or more.