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Method for treating a hydrocarbon-rich gas mixture containing mercury and acid gases
US9550143B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9550143-B2 |
| Application number | US-201414764238-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 4, 2014 |
| Priority date | Feb 28, 2013 |
| Publication date | Jan 24, 2017 |
| Grant date | Jan 24, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
A method for treating a hydrocarbon-rich gas mixture containing mercury and acid gases, said gas mixture being natural gas in particular, wherein the gas mixture is subject to an adsorptive mercury removal and a downstream acid-gas scrubbing. Before the gas mixture to be treated is fed to the adsorptive mercury removal, the gas mixture to be treated is heated at least to such an extent that the gas mixture does not fall below the water dew point in the adsorptive mercury removal and does not fall below the hydrocarbon dew point in the acid-gas scrubbing.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for treating a mercury- and acid gases-containing hydrocarbon-rich gas mixture, wherein said mixture is subjected to an adsorptive mercury removal, having a separation process connected upstream of it, and a subsequent acid gas scrub, characterized in that between exiting the separation process and being supplied to the adsorptive mercury removal the gas mixture to be treated is warmed at least to an extent sufficient to avoid the temperature thereof falling below the water dew point in the adsorptive mercury removal and falling below the hydrocarbon dew point in the acid gas scrub. 2. The method according to claim 1 , characterized in that the gas mixture to be treated is warmed (E) by at least 5° C. to 30° C., between exiting the separation process and entering the acid gas scrub. 3. The method according to claim 1 , characterized in that the gas mixture to be treated is warmed against the acid gas-freed fraction withdrawn from the top of the acid gas scrub. 4. The method according to claim 1 , characterized in that the proportion of mercury in the gas mixture to be treated is between 1 and 1000 ηg/Nm 3 . 5. The method according to claim 1 , characterized in that the gas mixture is natural gas. 6. The method according to claim 2 , characterized in that the gas mixture to be treated is warmed by at least 15° C. to 25° C.
Assignees
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Classifications
by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids · CPC title
Removing acid components · CPC title
Employing advanced heat integration, e.g. Pinch technology · CPC title
- B01D53/1437Primary
Pretreatment by adsorption · CPC title
Carbon dioxide · CPC title
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- What does patent US9550143B2 cover?
- A method for treating a hydrocarbon-rich gas mixture containing mercury and acid gases, said gas mixture being natural gas in particular, wherein the gas mixture is subject to an adsorptive mercury removal and a downstream acid-gas scrubbing. Before the gas mixture to be treated is fed to the adsorptive mercury removal, the gas mixture to be treated is heated at least to such an extent that the…
- Who is the assignee on this patent?
- Linde Ag
- What technology area does this patent fall under?
- Primary CPC classification B01D53/1437. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 24 2017 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).