Process for converting raffinate butenes to propylene
US-11926587-B2 · Mar 12, 2024 · US
Energy conservation in heavy-hydrocarbon distillation
US8993825B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993825-B2 |
| Application number | US-201414283246-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 21, 2014 |
| Priority date | Aug 25, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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An aromatics complex producing one or more xylene isomers offers a large number of opportunities to conserve energy by heat exchange within the complex. One previously unrecognized opportunity is through providing two parallel distillation columns operating at different pressures to separate C 8 aromatics from C 9 + aromatics. The parallel columns offer additional opportunities to conserve energy within the complex through heat exchange in associated xylene recovery facilities.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for producing one or more individual xylene isomers from feed streams containing C 8 aromatics and C 9 -and-heavier aromatics, comprising: (a) a distillation process comprising two or more xylene columns separating C 8 -aromatics streams from a C 9 -and-heavier aromatics streams contained in at least one higher-boiling and at least one lower-boiling feed stream, wherein the at least one higher-boiling feed stream has a higher content of C 9…
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- B01D3/143Primary
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US8993825B2 cover?
- An aromatics complex producing one or more xylene isomers offers a large number of opportunities to conserve energy by heat exchange within the complex. One previously unrecognized opportunity is through providing two parallel distillation columns operating at different pressures to separate C 8 aromatics from C 9 + aromatics. The parallel columns offer additional opportunities to conserve ene…
- Who is the assignee on this patent?
- Uop Llc
- What technology area does this patent fall under?
- Primary CPC classification B01D3/143. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).