HYDROTREATED HYDROCARBON TAR, FUEL OIL COMPOSITION,AND PROCESS FOR MAKING

• US 20140174980A1
• Filed: 03/12/2013
• Published: 06/26/2014
• Est. Priority Date: 12/24/2012
• Status: Abandoned Application

• Current Assignee: ExxonMobil Chemical Patents Inc. (Exxon Mobil Corporation)
• Original Assignee: ExxonMobil Research & Engineering Company (Exxon Mobil Corporation)
• Inventors: Brown, Stephen Harold, Wang, Frank Cheng-Yu, Davis, Stephen Mark, Yung, Cathleen
• Application Number:
  US13/796,326
• Publication Number:
  US 20140174980A1
• Time in Patent Office: Days
• US Class Current: 208/15
• CPC Class Codes: C10C 1/205 refining in the presence of hydrogen
• CPC Class Codes: C10G 45/44 Hydrogenation of the aromatic hydrocarbons
• CPC Class Codes: C10G 69/06 including at least one step of thermal cracking in the absence of hydrogen
• CPC Class Codes: C10G 9/36 with heated gases or vapours
• CPC Class Codes: C10L 1/04 essentially based on blends of hydrocarbons
• CPC Class Codes: C10L 1/1616 fractions, e.g. lubricants, solvents, naphta, bitumen, tars, terpentine
• CPC Class Codes: C10L 2200/0438 Middle or heavy distillates, heating oil, gasoil, marine fuels, residua
• CPC Class Codes: C10L 2290/543 Distillation, fractionation or rectification for separating fractions, components or impurities during preparation or upgrading of a fuel

Abstract

Provided is a hydrocarbon tar. The tar has 75 wt % or more of aromatics of 10 carbons to 75 carbons based on the total weight of the tar. The aromatics exhibit 40% to 80% aromaticity. The tar has a boiling point of from 300° F. to 1350° F. There is also a fuel oil composition having the tar therein. There are also processes for making the hydrocarbon tar.

Claims

1. A hydrocarbon tar, comprising:

75 wt % or more of aromatics of 10 carbons to 75 carbons based on the total weight of the tar, wherein the tar is of 40% to 80% aromaticity and a boiling point of from 300°

F. to 1350°

F.

2. The tar of claim 1, wherein the tar has a sulfur concentration of 0.5 wt % or less.

3. The tar of claim 1, wherein the hydrocarbon tar is of 50% to 65% aromaticity.

4. The tar of claim 1, wherein the hydrocarbon tar is of 40% to 68% aromaticity.

5. The tar of claim 1, wherein the hydrocarbon tar is of 50% to 70% aromaticity.

6. The tar of claim 1, wherein density of the tar is 0.90 to 1.06 grams/cubic centimeter.

7. The tar of claim 1, wherein viscosity of the tar is 40 centistokes to 400 centistokes at 40°

C.

8. The tar of claim 1, wherein viscosity of the tar is 100 centistokes to 400 centistokes at 40°

C.

9. The tar of claim 1, wherein the tar exhibits 100% solubility in 75 wt % toluene/25 wt % heptanes at 100°

C.

10. The tar of claim 1, wherein the tar exhibits a carbon residue of 0.3 wt % or less.

11. The tar of claim 1, wherein the aromatics are of 25 carbons to 29 carbons.

12. The tar of claim 1, wherein the aromatics are of 18 carbons to 23 carbons.

13. A fuel oil composition, comprising:

a blend of 10 wt % to 100 wt % of aromatics of 10 carbons to 75 carbons and 90 wt % to 0 wt % of non-aromatic hydrocarbons of 10 or more carbons, wherein the aromatics exhibit 40% to 80% aromaticity, wherein the aromatics and the non-aromatic hydrocarbons are 95 wt % or more of the total weight of the composition.

14. The composition of claim 13, wherein the aromatics cs are of 40% to 68% aromnaticity.

15. The composition of claim 13, wherein the composition has a sulfur concentration of 1.0 wt % or less.

16. The composition of claim 13, wherein the aromatics are 10 wt % to 30 wt % and the hydrocarbons are 90 wt % to 70 wt % based on the total weight of the composition.

17. The composition of claim 13, wherein the aromatics are of 25 carbons to 29 carbons.

18. The composition of claim 13, wherein the aromatics and the hydrocarbons are 99 wt % or more of the total weight of the composition.

19. A process for making a hydrogenated tar, comprising:

a) refining a first stream of hydrocarbons in a vacuum or atmospheric distillation tower to produce a tower stream;

b) cracking the tower stream in a steam cracker to produce a cracker stream of 75 wt % or more of aromatics of 10 carbons to 75 carbons and 60% to 80% aromaticity based on the total weight of the tower stream; and

c) partially hydrogenating the cracker stream to form a hydrocarbon tar of an aromaticity of 40% to 80% and a boiling point of from 300°

F. to 1350°

F.

20. The process of claim 19, further comprising blending into a second stream of non-aromatic hydrocarbons of 10 or more carbons the hydrocarbon tar to form a fuel oil composition.

21. The process of claim 19, wherein the cracker stream is partially hydrogenated to form a hydrocarbon tar of an aromaticity of 40% to 68%.

22. A process for making a hydrocarbon tar, comprising:

a) refining a crude oil or a natural gas liquid stream to produce an aromatic stream of at 75 wt % or more of aromatics of 10 carbons to 75 carbons and 60% to 80% aromaticity based on the total weight of the composition;

b) partially hydrogenating the aromatic stream to form a hydrocarbon tar of an aromaticity of 40% to 80% and a boiling point of from 300°

F. to 1350°

F.

23. The process of claim 22, further comprising:

blending 10 wt % to 95 wt % of the hydrocarbon tar into 90 wt % to 5 wt % of a stream of non-aromatic hydrocarbons of 10 or more carbons to form a fuel oil composition based on the total weight of the composition, wherein the aromatic stream and the hydrocarbon stream together are 95 wt % or more of the total weight of the fuel oil composition.

24. The process of claim 22, wherein the aromatic stream is partially hydrogenated to form a hydrocarbon tar of an aromaticity of 40% to 68%.