Gas separation system and enriched gas production method
US-2016288047-A1 · Oct 6, 2016 · US
Apparatus for separating co2 from combustion gas using multi-stage membranes
US2016346727A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016346727-A1 |
| Application number | US-201615165733-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 26, 2016 |
| Priority date | May 29, 2015 |
| Publication date | Dec 1, 2016 |
| Grant date | — |
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Abstract
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An apparatus separating carbon dioxide from combustion gas using separation membranes, which includes: a first separation membrane in which combustion gas is injected into an inlet side of the first separation membrane; a second separation membrane in which residue gas of the first separation membrane is injected into an inlet side of the second separation membrane; and a third separation membrane in which permeate gas of the first separation membrane is injected into an inlet side of the third separation membrane, wherein at least a part of permeate gas of the third separation membrane is captured, and residue gas of the third separation membrane is injected into the inlet side of the first separation membrane or the second separation membrane. The present invention can be easily applied to an actual process by efficiently separating carbon dioxide using separation membranes.
First claim
Opening claim text (preview).
What is claimed is: 1 . A carbon dioxide separation apparatus for separating carbon dioxide from combustion gas using multiple separation membranes, the carbon dioxide separation apparatus comprising: a first separation membrane in which combustion gas is injected into an inlet side of the first separation membrane; a second separation membrane in which residue gas of the first separation membrane is injected into an inlet side of the second separation membrane; and a third separation membrane in which permeate gas of the first separation membrane is injected into an inlet side of the third separation membrane, wherein at least a part of permeate gas of the third separation membrane is captured, and residue gas of the third separation membrane is injected into the inlet side of the first separation membrane or the second separation membrane. 2 . The carbon dioxide separation apparatus of claim 1 , wherein at least another part of the permeate gas of the third separation membrane is injected into the inlet side of the third separation membrane, and the residue gas of the third separation membrane is injected into the inlet side of the first separation membrane. 3 . The carbon dioxide separation apparatus of claim 1 , wherein at least another part of the permeate gas of the third separation membrane is injected into the inlet side of the third separation membrane, and the residue gas of the third separation membrane is injected into the inlet side of the second separation membrane. 4 . The carbon dioxide separation apparatus of claim 1 , wherein at least a part of permeate gas of the second separation membrane is injected into the inlet side of the second separation membrane. 5 . The carbon dioxide separation apparatus of claim 4 , wherein at least another part of the permeate gas of the second separation membrane is injected into the inlet side of the first separation membrane. 6 . The carbon dioxide separation apparatus of claim 1 , wherein at least a part of permeate gas of the second separation membrane is injected into the inlet side of the first separation membrane. 7 . The carbon dioxide separation apparatus of claim 6 , further comprising: a sensor that senses carbon dioxide concentration of the permeate gas of the second separation membrane or the residue gas of the third separation membrane, which is injected into the inlet side of the first separation membrane. 8 . The carbon dioxide separation apparatus of claim 1 , wherein a pressure unit is provided on at least one inlet side of the first to third separation membranes. 9 . The carbon dioxide separation apparatus of claim 1 , wherein a decompression unit is provided on at least one permeate side of the first to third separation membranes. 10 . The carbon dioxide separation apparatus of claim 2 , further comprising: a fourth separation membrane in which permeate gas of the second separation membrane is injected into an inlet side of the fourth separation membrane, wherein residue gas of the fourth separation membrane is injected into the inlet side of the second separation membrane, and permeate gas of the fourth separation membrane is injected into the inlet side of the first separation membrane. 11 . The carbon dioxide separation apparatus of claim 3 , further comprising: a fourth separation membrane in which permeate gas of the second separation membrane is injected into an inlet side of the fourth separation membrane, wherein residue gas of the fourth separation membrane is injected into the inlet side of the second separation membrane, and permeate gas of the fourth separation membrane is injected into the inlet side of the first separation membrane.
Assignees
Inventors
Classifications
Devices · CPC title
- B01D53/226Primary
in serial connexion · CPC title
Christmas tree arrangements · CPC title
Flue gases · CPC title
Carbon dioxide · CPC title
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Frequently asked questions
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- What does patent US2016346727A1 cover?
- An apparatus separating carbon dioxide from combustion gas using separation membranes, which includes: a first separation membrane in which combustion gas is injected into an inlet side of the first separation membrane; a second separation membrane in which residue gas of the first separation membrane is injected into an inlet side of the second separation membrane; and a third separation membr…
- Who is the assignee on this patent?
- Korea Energy Research Inst
- What technology area does this patent fall under?
- Primary CPC classification B01D53/226. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Dec 01 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).