PROCESS TO PREPARE JET FUELS AND ITS PRODUCTS

• US 20130102817A1
• Filed: 10/25/2012
• Published: 04/25/2013
• Est. Priority Date: 10/25/2011
• Status: Abandoned Application

• Current Assignee: Shell Oil Company (Shell Plc)
• Original Assignee: Shell Oil Company (Shell Plc)
• Inventors: DAHLSTROM, Mary Ann, HARTMAN, Scott James Siebert, TREDGET, Cara Siobhan
• Application Number:
  US13/660,869
• Publication Number:
  US 20130102817A1
• Time in Patent Office: Days
• US Class Current: 585/13
• CPC Class Codes: C10G 2400/08 Jet fuel
• CPC Class Codes: C10L 1/04 essentially based on blends of hydrocarbons
• CPC Class Codes: C10L 1/1608 Well defined compounds, e.g. hexane, benzene
• CPC Class Codes: C10L 10/04 for minimising corrosion or incrustation
• CPC Class Codes: C10L 2200/043 Kerosene, jet fuel
• CPC Class Codes: C10L 2200/0492 Fischer-Tropsch products
• CPC Class Codes: C10L 2270/04 for turbines, planes, power generation

Abstract

A jet fuel containing a major amount of a synthetic paraffinic kerosene fuel component is provided by:

• • a) providing a synthetic paraffinic kerosene fuel component in the jet boiling range having at least 99.5 wt % hydrocarbon, said hydrocarbon being at least 98.5 wt % paraffins, less than 1 wt % bicyclic compounds, and less than 0.5 wt % total aromatics as measured by ASTM D2425;
  • b) providing a petroleum-based jet fuel component in the jet boiling range;
  • c) providing pinane; and
  • d) blending component a), b) and c), wherein component c) is present in an amount of 5 to 40 weight percent, based on the blend, and component a) and b) are in a ratio of greater than 1 to 1 thereby providing a jet fuel blend having a density of from 775 to 840 kg/m³.

Claims

1. A method for increasing the amount of a synthetic paraffinic kerosene fuel component in a jet fuel comprising:

a) providing a synthetic paraffinic kerosene fuel component in the jet boiling range having at least 99.5 wt % hydrocarbon, said hydrocarbon being at least 98.5 wt % paraffins, less than 1 wt % bicyclic compounds, and less than 0.5 wt % total aromatics as measured by ASTM D2425;

b) providing a petroleum-based jet fuel component in the jet boiling range;

c) providing pinane; and

d) blending component a), b) and c), wherein component c) is present in an amount of 5 to 40 weight percent, based on the blend, and component a) and b) are in a ratio of greater than 1 to 1 thereby providing a jet fuel blend having a density of from 775 to 840 kg/m³.

2. The method of claim 1 wherein component c) is present in an amount of 5 to 35 weight percent, based on the blend.

3. The method of claim 1 wherein the jet fuel blend has an aromatic content of less than 10 vol. % based on the jet fuel blend.

4. The method of claim 3 wherein the fuel blend has an aromatic content of less than 8 vol. % based on the jet fuel blend.

5. The method of claim 3 wherein component c) is present in an amount of 5 to 35 weight percent, based on the blend.

6. The method of claim 1 wherein component c) is present in an amount of 10 to 35 weight percent, based on the blend.

7. The method of claim 1 wherein component c) is present in an amount of 10 to 30 weight percent, based on the blend.

8. A jet fuel composition having a density of from 775 to 840 kg/m³ comprising:

a) a petroleum-based jet fuel component other than b) boiling for more than 90 vol % at from 130 to 300°

C.;

b) greater than 50 weight percent, based on combined components a) and b), of a synthetic paraffinic kerosene fuel component in the jet boiling range having at least 99.5 wt % hydrocarbon, said hydrocarbon being at least 98.5 wt % paraffins, less than 1 wt % bicyclic compounds, and less than 0.5 wt % total aromatics as measured by ASTM D2425; and

c) 5 to 40 weight percent, based on the Jet Fuel composition, of pinane.

9. The jet fuel composition of claim 8 wherein pinane is present in an amount of 5 to 35 weight percent, based on the blend.

10. The jet fuel composition of claim 8 wherein greater than 55 weight percent, based on combined components a) and b), of the synthetic paraffinic kerosene fuel component is present.

11. The jet fuel composition of claim 10 wherein pinane is present in an amount of 5 to 35 weight percent, based on the blend.

12. The jet fuel composition of claim 11 wherein greater than 60 weight percent, based on combined components a) and b), of the synthetic paraffinic kerosene fuel component is present.

13. The jet fuel composition of claim 8 wherein pinane is present in an amount of 10 to 35 weight percent, based on the blend.

14. The jet fuel composition of claim 13 wherein pinane is present in an amount of 10 to 25 weight percent, based on the blend.

15. The jet fuel composition of claim 8 wherein greater than 70 weight percent, based on combined components a) and b), of the synthetic paraffinic kerosene fuel component is present.