Processes and systems for producing upgraded product from residue

Patent metadata

Field	Value
Publication number	US-11926801-B2
Application number	US-202117160699-A
Country	US
Kind code	B2
Filing date	Jan 28, 2021
Priority date	Jan 28, 2021
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

Embodiments of the present disclosure are directed to a process for producing upgraded product from residue comprising atmospheric residue or vacuum residue upgrading comprising separating the residue through a Solvent Deasphalting (SDA) unit, wherein the SDA unit includes an asphaltene separator that separates the residue into asphaltene pitch and a stream comprising deasphalted oil (DAO) and resin, and a resin separator that subsequently separates the stream comprising DAO and resin into separate DAO and resin streams, treating the resin stream with supercritical water (SCW) to produce an upgraded resin stream, and hydroprocessing a portion of the upgraded resin stream and the DAO stream to produce the upgraded product.

First claim

What is claimed is:

1. A process for producing upgraded product from residue comprising atmospheric residue or vacuum residue upgrading, the process comprising:
separating the residue through a Solvent Deasphalting (SDA) unit, wherein the SDA unit includes an asphaltene separator that separates the residue into asphaltene pitch and a stream comprising deasphalted oil (DAO) and resin, and a resin separator that subsequently separates the stream comprising DAO and resin into separate DAO and resin streams;
treating the resin stream with supercritical water (SCW) to produce an upgraded resin stream; and
hydroprocessing a portion of the upgraded resin stream and the DAO stream to produce the upgraded product.

2. The process of claim 1 , further comprising mixing the upgraded resin stream and the DAO prior to the hydroprocessing step.

3. The process of claim 1 , further comprising recycling a portion of the upgraded resin stream to the asphaltene separator, wherein the upgraded resin stream is combined with the residue prior to the separating step.

4. The process of claim 1 , further comprising recycling a portion of the upgraded resin stream by combining the upgraded resin stream with the remaining residue prior to the separating the remaining residue step.

5. The process of claim 1 , where the residue has an API gravity of less than or equal to 22.

6. The process of claim 1 , where the residue has an asphaltene content of more than or equal to 2 weight percent (wt. %).

7. The process of claim 1 , where the residue has a total metal content of more than or equal to 20 parts per million by weight (ppmw).

8. The process of claim 1 , where the DAO has an asphaltene content of less than or equal to 7 wt. %.

9. The process of claim 1 , where the DAO has a total metal content of less than or equal to 25 ppmw.

10. The process of claim 1 , where the DAO has a CCR content of less than or equal to 15 wt. %.

11. The process of claim 1 , where the resin stream has an asphaltene content of from 1% to 10% of an asphaltene content of the residue.

12. The process of claim 1 , where the resin stream has a total metal content of from 10% to 70% of a total metal content of the residue.

13. The process of claim 1 , where the resin stream has a CCR content of from 10% to 120% of a CCR content of the residue.

14. The process of claim 1 , where the weight ratio of the SCW to the resin stream is from 10:1 to 0.1:1.

15. The process of claim 1 , where the treating step takes place at temperature of from 380 Celsius (° C.) to 500° C.

16. The process of claim 1 , where the hydroprocessing of the upgraded resin stream removes at least a portion of one or more of metals, nitrogen, or sulfur content from the upgraded resin stream.

17. The process of claim 1 , where the upgraded product comprises naphtha, gas oil, vacuum gas oil, or combinations thereof.

Assignees

• Saudi Arabian Oil Co

Inventors

• Choi Ki-Hyouk
• Aldossary Mohammed S
• Alabdulhadi Abdullah T

Classifications

• C10G67/0463 Primary

  The hydrotreatment being a hydrorefining · CPC title

• C10G49/18

  in the presence of hydrogen-generating compounds, e.g. ammonia, water, hydrogen sulfide · CPC title

• C10G2300/107

  Atmospheric residues having a boiling point of at least about 538 °C · CPC title

• C10G2300/1074

  Vacuum distillates · CPC title

• C10G2300/202

  Heteroatoms content, i.e. S, N, O, P · CPC title