Process and system for conversion of crude oil to petrochemicals and fuel products integrating vacuum gas oil hydrotreating and steam cracking
US-10619112-B2 · Apr 14, 2020 · US
Hydrogenation of acetylenes in a hydrocarbon stream
US12037553B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12037553-B2 |
| Application number | US-202217729975-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 26, 2022 |
| Priority date | Apr 27, 2021 |
| Publication date | Jul 16, 2024 |
| Grant date | Jul 16, 2024 |
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- Title
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Abstract
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A system for hydrogenation C3 and C4 acetylenes contained within a hydrocarbon stream generated in a stream cracker unit where a debutanizer is placed upstream of a depropanizer for more economical processing of the hydrocarbon stream to produce lighter hydrocarbons, where the system requires only one stripper tower downstream of hydrogenation to remove residual hydrogen.
First claim
Opening claim text (preview).
What is claimed is: 1. A system for hydrogenating acetylenes in a hydrocarbon stream, the system comprising: a debutanizer comprising a debutanizer overhead stream; a condenser downstream of the debutanizer and configured to condense the debutanizer overhead stream to yield a condensed debutanizer overhead stream; a C 4 acetylene hydrogenation reactor downstream of the condenser and configured to selectively hydrogenate the condensed debutanizer overhead stream while maintaining the condensed debutanizer overhead stream in liquid phase; a depropanizer downstream of the debutanizer and the C 4 acetylene hydrogenation reactor; a methyl acetylene and propadiene (MAPD) reactor downstream of the depropanizer; and a stripper column downstream from the depropanizer for venting off residual unreacted H 2 . 2. The system of claim 1 , wherein the stripper column is located downstream of the MAPD reactor to receive a crude propylene stream therefrom. 3. The system of claim 1 , wherein the C 4 acetylene hydrogenation reactor comprises an outlet stream directed to the depropanizer, and the depropanizer comprises a bottoms crude butadiene product stream. 4. The system of claim 3 , wherein there is no stripping column additional to the stripper column for venting off residual unreacted H 2 from the crude butadiene product stream. 5. The system of claim 1 , wherein the condenser comprises a refrigeration medium. 6. An ethylene plant comprising: a system for hydrogenating acetylenes in a hydrocarbon stream, the system comprising: a debutanizer comprising a debutanizer overhead stream; a condenser downstream of the debutanizer and configured to condense the debutanizer overhead stream to yield a condensed debutanizer overhead stream; a C 4 acetylene hydrogenation reactor downstream of the condenser and configured to selectively hydrogenate the condensed debutanizer overhead stream while maintaining the condensed debutanizer overhead stream in liquid phase; a depropanizer downstream of the debutanizer and the C 4 acetylene hydrogenation reactor; a methyl acetylene and propadiene (MAPD) reactor downstream of the depropanizer; and a stripper column downstream from the depropanizer for venting off residual unreacted H 2 . 7. The ethylene plant of claim 6 , wherein the stripper column is located downstream of the MAPD reactor to receive a crude propylene stream therefrom. 8. The ethylene plant of claim 6 , wherein the C 4 acetylene hydrogenation reactor comprises an outlet stream directed to the depropanizer, and the depropanizer comprises a bottoms crude butadiene product stream. 9. The ethylene plant of claim 8 , wherein there is no stripping column additional to the stripper column for venting off residual unreacted H 2 from the crude butadiene product stream. 10. The ethylene plant of claim 6 , wherein the condenser comprises a refrigeration medium.
Assignees
Inventors
Classifications
- C10G51/06Primary
plural parallel stages only · CPC title
C2-C4 olefins · CPC title
Hydrocarbon fractions · CPC title
- C10G70/041Primary
by distillation · CPC title
by hydrogenation · CPC title
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Frequently asked questions
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- What does patent US12037553B2 cover?
- A system for hydrogenation C3 and C4 acetylenes contained within a hydrocarbon stream generated in a stream cracker unit where a debutanizer is placed upstream of a depropanizer for more economical processing of the hydrocarbon stream to produce lighter hydrocarbons, where the system requires only one stripper tower downstream of hydrogenation to remove residual hydrogen.
- Who is the assignee on this patent?
- Kellogg Brown & Root Llc
- What technology area does this patent fall under?
- Primary CPC classification C10G51/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 16 2024 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).