Solid carbon dioxide absorbent and elimination and concentration method of carbon dioxide using the absorbent

A solid carbon dioxide and carbon dioxide technology, applied in chemical instruments and methods, through absorption, separation methods, etc., can solve the problems of by-products, reaction tower pressure drop, low economy, etc., and achieve the effect of stable removal

Active Publication Date: 2013-12-04
KOREA INST OF ENERGY RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there are various problems as follows: high-pressure air supply is required; crushing phenomenon (powdering) may occur with the flow of the absorbent; the absorbent needs to be replenished every cycle; since the concentrated carbon dioxide (production gas) contains fine powder absorbent, Filtration required; pressure drop in reaction tower due to particulate absorbent may occur
[0004] In addition, a process of absorbing a

Method used

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  • Solid carbon dioxide absorbent and elimination and concentration method of carbon dioxide using the absorbent
  • Solid carbon dioxide absorbent and elimination and concentration method of carbon dioxide using the absorbent
  • Solid carbon dioxide absorbent and elimination and concentration method of carbon dioxide using the absorbent

Examples

Experimental program
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Embodiment 1

[0044] Embodiment 1: take X-type zeolite as the K-containing 2 CO 3 manufacture of absorbent

[0045] Manufactured containing 50% ceramic fiber, 35% X-type zeolite, 3% PVA as an organic binder, 5% cellulose, 5% sepiolite as an inorganic binder, 2% silica powder and a thickness of 0.21 mm of ceramic paper that can be used at high temperatures above 100°C. Using two sheets of ceramic paper, one of them was molded into a wave shape with a pitch of 3.8 mm and a height of 1.8 mm to produce a single-sided corrugated molded product in the form of corrugated paper. This single-face corrugated molded body was wound to form a cylindrical honeycomb with a diameter of 6 cm and a length of 40 cm, and then dried at 110° C. for 5 hours. Immerse the dried honeycomb in 30% K 2 CO 3 After remaining in the solution for 10 minutes, it was taken out, dehydrated at room temperature, and then dried at 150° C. for 24 hours. will load K 2 CO 3 The post-dried honeycombs were kept at 400°C for 2...

Embodiment 2

[0046] Embodiment 2: with gamma alumina as the K-containing 2 CO 3 manufacture of absorbent

[0047] Manufactured containing 50% ceramic fiber, 35% gamma alumina, 3% PVA as organic binder, 5% cellulose, 5% sepiolite as inorganic binder, 2% silica powder and a thickness of 0.21mm ceramic paper that can be used at high temperatures above 100°C. Subsequent steps were carried out in the same manner as in Example 1.

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PUM

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Abstract

A method for manufacturing a solid carbon dioxide absorbent, comprises the steps of: (1) mixing (a) 10-80% by weight of fibroid material capable of resisting high temperature more than 100 DEG C, (b) 10-80% by weight of porous inorganic material, (c) 5-20% by weight of organic-inorganic binder, to make paper; (2) after forming the paper into a single-faced corrugated preform, winding the preform to manufacture a cylindrical honeybee preform; (3) cooling after dipping the honeybee preform in a solution dissolved with the carbon dioxide absorbing material; and (4) cooling after calcining the honeybee preform carrying the carbon dioxide absorbing material. When carbon dioxide in waste gas is removed by the solid carbon dioxide absorbent manufactured by the method, an absorbent broken phenomenon or process pressure reduction caused by air flow does not occur. A stable dry type carbon dioxide absorption and separation concentration processes capable of saving device cost and operation cost can be implemented without filtration or periodic supplement of concentrated carbon dioxide by simplifying the processes.

Description

technical field [0001] The present invention relates to a carbon dioxide absorbent and a method for removing and concentrating carbon dioxide using the absorbent, and more particularly to a solid absorbent with a carbon dioxide absorbing substance loaded on a formed honeycomb body and a method for absorbing, separating and concentrating carbon dioxide using the absorbent method. Background technique [0002] Currently, research is actively being carried out to recover carbon dioxide, which is the main cause of global warming. As one of these methods, a carbon dioxide absorption and removal process using a dry absorbent containing an alkali metal salt has conventionally been used. This method involves making a paste of an alkali metal salt in a porous substance such as zeolite and alumina, and then making a paste with a binder (cordierite, etc.), and producing spherical carbon dioxide by spray drying (spray dryer) After absorbing the absorbent, it is used to absorb and remo...

Claims

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Application Information

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IPC IPC(8): B01D53/14B01D53/02C01B31/20C01B32/50
CPCY02C10/08Y02C10/04Y02C10/06Y02C20/40Y02P20/151B01D53/02B01D53/62B01J20/28C01B32/50
Inventor 刘允锺金鸿守李东哲
Owner KOREA INST OF ENERGY RES
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