Synthetic crude composition

Patent metadata

Field	Value
Publication number	US-11760942-B2
Application number	US-202017639871-A
Country	US
Kind code	B2
Filing date	Aug 14, 2020
Priority date	Sep 5, 2019
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

An upgraded crude composition is provided, along with systems and methods for making such a composition. The upgraded crude composition can include an unexpectedly high percentage of vacuum gas oil boiling range components while having a reduce or minimized amount of components boiling above 593° C. (1100° F.). In some aspects, based in part on the hydroprocessing used to form the upgraded crude composition, the composition can include unexpectedly high contents of nitrogen. Still other unexpected features of the composition can include, but are not limited to, an unexpectedly high nitrogen content in the naphtha fraction; and an unexpected vacuum gas oil fraction including an unexpectedly high content of polynuclear aromatics, an unexpectedly high content of waxy, paraffinic compounds, and/or an unexpectedly high content of n-pentane asphaltenes.

First claim

What is claimed is:

1. An upgraded crude composition, comprising:
3.0 wt % to 15 wt % of a naphtha fraction;
15 wt % to 35 wt % of a distillate fraction comprising 30 wt % to 50 wt % of combined naphthenes and aromatics relative to a weight of the distillate fraction;
15 wt % to 30 wt % of 566° C.+ components; and
40 wt %-65 wt % or more of a vacuum gas oil fraction, the vacuum gas oil fraction comprising 0.1 wt % to 2.0 wt % of n-pentane insolubles relative to a weight of the vacuum gas oil fraction,
wherein the composition comprises a kinematic viscosity at 7.5° C. of 500 cSt or less, an API gravity of 18° or more, or a combination thereof.

2. The composition of claim 1 , wherein the vacuum gas oil fraction comprises 0.5 wt % to 8.0 wt % of micro carbon residue relative to a weight of the vacuum gas oil fraction.

3. The composition of claim 1 , wherein the composition comprises 6.0 wt % to 12 wt % of the naphtha fraction, the naphtha fraction comprising 0.06 wt % or more of nitrogen and 15 wt % to 30 wt % of combined naphthenes and aromatics relative to a weight of the naphtha fraction.

4. The composition of claim 1 , wherein the naphtha fraction comprises 1.5 wt % or less of olefins relative to a weight of the naphtha fraction.

5. The composition of claim 1 , wherein the naphtha fraction comprises 5 wt % or less of C3-C4 compounds.

6. The composition of claim 1 , wherein the vacuum gas oil fraction comprises 5.0 wt % or less of paraffins relative to a weight of the vacuum gas oil fraction.

7. The composition of claim 1 , wherein the vacuum gas oil fraction comprises a solubility blending number of 60 or more.

8. The composition of claim 1 , wherein the composition comprises a kinematic viscosity at 7.5° C. of 350 cSt or less, an API gravity of 19° or more, or a combination thereof.

9. An upgraded crude composition, comprising:
5.0 wt % to 15 wt % of a naphtha fraction comprising 11 wt % to 30 wt % of combined naphthenes and aromatics relative to a weight of the naphtha fraction;
15 wt % to 35 wt % of a distillate fraction comprising 30 wt % to 50 wt % of combined naphthenes and aromatics relative to a weight of the distillate fraction;
less than 0.1 wt % 1200° F.+( ˜ 649° C.) components;
5.0 wt % or less of 593° C.+ components; and 50 wt % or more of a vacuum gas oil fraction, the vacuum gas oil fraction comprising the balance of the composition, the vacuum gas oil fraction comprising
a) 0.3 wt % or more of nitrogen relative to a weight of the vacuum gas oil fraction,
b) 0.5 wt % to 5.0 wt % of n-pentane insolubles relative to a weight of the vacuum gas oil fraction, or
c) a combination thereof, wherein the composition comprises a kinematic viscosity at 7.5° C. of 500 cSt or less, an API gravity of 18° or more, or a combination thereof.

10. The composition of claim 9 , wherein the vacuum gas oil fraction comprises 1.0 wt % to 10 wt % of micro carbon residue relative to a weight of the vacuum gas oil fraction, or wherein a 343° C.+ portion of the composition comprises 1.0 wt % to 10 wt % of micro carbon residue relative to a weight of the 343° C.+ portion, or a combination thereof.

11. The composition of claim 9 , wherein the composition comprises 0.1 wt % or less of 621° C.+ components.

12. The composition of claim 9 , wherein the composition comprises 6.0 wt % to 12 wt % of the naphtha fraction, the naphtha fraction comprising 0.06 wt % or more of nitrogen and 15 wt % to 30 wt % of combined naphthenes and aromatics relative to a weight of the naphtha fraction.

13. The composition of claim 9 , wherein the naphtha fraction comprises 1.5 wt % or less of olefins relative to a weight of the naphtha fraction.

14. The composition of claim 9 , wherein the naphtha fraction comprises 5 wt % or less of C3-C4 compounds.

15. The composition of claim 9 , wherein the vacuum gas oil fraction comprises 5.0 wt % or less of paraffins relative to a weight of the vacuum gas oil fraction.

16. The composition of claim 9 , wherein the vacuum gas oil fraction comprises a solubility blending number of 60 or more.

17. The composition of claim 9 , wherein the composition comprises a kinematic viscosity at 7.5° C. of 350 cSt or less, an API gravity of 19° or more, or a combination thereof.

Assignees

• Exxonmobil Technology & Engineering Company

Inventors

• Brown Stephen H
• Raich Brenda A
• Cady Samuel J
• Kovvali Anjaneya S
• Shen Eric B
• Horton Scott R
• Mhadeshwar Ashish B
• Ramkrishnan Aruna

Classifications

• C10L1/023 Primary

  for spark ignition · CPC title

• C10G45/00 Primary

  Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds · CPC title

• C10L1/026

  for compression ignition · CPC title

• C10G47/26

  suspended in the oil, e.g. slurries · CPC title

• C10G21/003

  Solvent de-asphalting · CPC title