Method and device for separating carbon dioxide

A carbon dioxide, separation method technology, applied in separation methods, chemical separation, chemical instruments and methods, etc., can solve problems such as device shutdown

Active Publication Date: 2012-05-23
KAWASAKI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is necessary to replace the carbon dioxide adsorbent at regular intervals. For these reasons, not only will the problem of stopping the operation of the device be caused, but also frequent replacement costs of the adsorbent will be incurred.

Method used

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  • Method and device for separating carbon dioxide
  • Method and device for separating carbon dioxide
  • Method and device for separating carbon dioxide

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Embodiment Construction

[0051] Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to the following description.

[0052] In the present invention, the porous substance used as the carbon dioxide adsorbent includes, for example, activated carbon, activated alumina, and the like. There are many fine pores on the surface of these materials, and the loading capacity of the amine compound is large, and it is also suitable for absorbing carbon dioxide after loading. Among these materials, activated carbon has a small bulk density and is therefore suitable as a lightweight carbon dioxide adsorbing material. Also, it is suitable for deodorizing the slight ammonia odor that amine compounds have. Activated carbon suitable as a carbon dioxide adsorption material preferably has an average pore diameter of 20-100?, a pore volume of 1.0-2.0cc / g, and a specific surface area of ​​1000-2000m 2 / g of activated carbon.

[0053] Amine ...

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Abstract

Disclosed is a method and device for separating carbon dioxide, wherein carbon dioxide adsorption ability can be maintained over the long term by means of recovering and re-supporting on a carbon dioxide adsorption material amine compounds that vaporize during operation. An amine recovery device (11) and an aqueous amine solution preparation device (14) are connected to an adsorption-material-filled tank (1), which has been filled with the carbon dioxide adsorption material (2), amine compounds vaporized from the carbon dioxide adsorption material (2) during operation are recovered to the aqueous amine solution preparation device (14) by means of the amine recovery device (11), and recovered amine compounds are re-supported on the carbon dioxide adsorption material (2) via a supply line (7).

Description

technical field [0001] The present invention relates to a carbon dioxide separation method and device, and in more detail, relates to the separation of carbon dioxide in the air by alternately and repeatedly performing the adsorption and desorption of carbon dioxide by using a carbon dioxide adsorption material that carries an amine compound on the surface of a polymer having an amino group or a porous substance Carbon dioxide separation method and device. Background technique [0002] As is well known, since submarines, spaceships, etc. cannot breathe, a carbon dioxide separator is used to keep the carbon dioxide concentration below a certain level in the space where the occupants live. In addition, ventilation is necessary in offices that require air conditioning, but as the concentration of carbon dioxide in the atmosphere has increased in recent years, the amount of ventilation required to keep the concentration of carbon dioxide in the office below a certain value has i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14B01J20/22B01J20/34C01B32/50
CPCB01D2257/504B01J20/3466Y02C10/06Y02C10/08B01J20/3248B01D2253/102B01J20/3483B01D2252/2041B01D53/025B01D2259/402B01J20/3458B01D2259/4575B01D53/1475B01D2253/25B01D2259/4508B01D2252/20405Y02C10/04B01J20/3287B63G8/36Y02C20/40
Inventor 庄司恭敏木村朗岸本辉雄
Owner KAWASAKI HEAVY IND LTD
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