Integrated residuum hydrocracking and hydrofinishing
US-2019062654-A1 · Feb 28, 2019 · US
Methods and systems of steam stripping a hydrocracking feedstock
US11142704B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11142704-B2 |
| Application number | US-201916701983-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 3, 2019 |
| Priority date | Dec 3, 2019 |
| Publication date | Oct 12, 2021 |
| Grant date | Oct 12, 2021 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A process for producing cracked hydrocarbons from a feedstock, which includes a top portion that boils below 375° C. and a bottom portion that boils above 375° C., may include stripping the feedstock in a stripper to isolate the top portion from the bottom portion, hydrocracking the bottom portion in one or more hydrocracking reactors to produce a hydrocracked effluent, separating the hydrocracked effluent in a separating unit to produce a light product stream, a distillate stream, and a heavy unconverted stream; and recycling the heavy unconverted stream to an earlier stage of the process.
First claim
Opening claim text (preview).
What is claimed is: 1. A system for producing cracked hydrocarbons from a feedstock that comprises a top portion that boils below 375° C. and a bottom portion that boils above 375° C., the system comprising: a stripping unit configured to contact the feedstock with a vapor stream; one or more hydrocracking reactors; a separating unit; and a hydrotreating reactor configured to receive the top portion that is fed from the stripping unit, wherein the hydrotreating reactor is not in fluid communication with the hydrocracking reactors or the separating unit; wherein the stripping unit feeds the bottom portion to hydrocracking reactors, and the hydrocracking reactors feed the separating unit, and wherein the separating unit feeds one or more of the group consisting of the stripping unit and one of the hydrocracking reactors. 2. The system of claim 1 , wherein the system comprises two or more of the hydrocracking zones connected in series. 3. The system of claim 1 , wherein the stripping unit is fed by the separating unit. 4. The system of claim 1 , further comprising an additional hydrocracking reactor that is downstream of the separating unit. 5. The system of claim 4 , further comprising a second stripping unit. 6. The system of claim 5 , wherein the additional hydrocracking reactor feeds the second stripping unit. 7. The system of claim 6 , wherein the second stripping unit feeds the separating unit. 8. The system of claim 5 , wherein the second stripping unit is fed by the separating unit and feeds the additional hydrocracking reactor.
Assignees
Inventors
Classifications
by means of a nozzle · CPC title
including at least two different refining steps in the absence of hydrogen · CPC title
Treatment of hydrocarbon oils by two or more hydrotreatment processes only · CPC title
Gasoil having a boiling range of about 330 - 427 °C · CPC title
with stationary particles, e.g. in fixed beds · CPC title
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- What does patent US11142704B2 cover?
- A process for producing cracked hydrocarbons from a feedstock, which includes a top portion that boils below 375° C. and a bottom portion that boils above 375° C., may include stripping the feedstock in a stripper to isolate the top portion from the bottom portion, hydrocracking the bottom portion in one or more hydrocracking reactors to produce a hydrocracked effluent, separating the hydrocrac…
- Who is the assignee on this patent?
- Saudi Arabian Oil Co
- What technology area does this patent fall under?
- Primary CPC classification C10G67/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 12 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).