Methods for operating polyethylene reactor systems
US-2024392119-A1 · Nov 28, 2024 · US
Reduction of fouling in high pressure reactors
US9202014B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9202014-B2 |
| Application number | US-201314078576-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 13, 2013 |
| Priority date | Dec 5, 2012 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
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Abstract
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The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
First claim
Opening claim text (preview).
What is claimed is: 1. A method to determine the curve of the liquid liquid equilibrium boundary as a function of molecular weight distribution (MWD) for a multitude of different products comprising from about 80 to about 100 wt. % of ethylene and about 0 up to about 20 weight % of one or more C 3-8 alpha olefins having a molecular weight from about 8,000 to about 500,000 produced in super critical ethylene in a high pressure reactor at temperatures from about 80° C. to about 350°…
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Chemistry & Metallurgy · mapped topic
Physics · mapped topic
Chemistry & Metallurgy · mapped topic
- C08F110/02Primary
Chemistry & Metallurgy · mapped topic
- C08F2/01Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US9202014B2 cover?
- The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of c…
- Who is the assignee on this patent?
- Nova Chem Int Sa
- What technology area does this patent fall under?
- Primary CPC classification C08F110/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 01 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).