KR20050003767A - CO2 capturing process - Google Patents

CO2 capturing process Download PDF

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KR20050003767A
KR20050003767A KR1020030045260A KR20030045260A KR20050003767A KR 20050003767 A KR20050003767 A KR 20050003767A KR 1020030045260 A KR1020030045260 A KR 1020030045260A KR 20030045260 A KR20030045260 A KR 20030045260A KR 20050003767 A KR20050003767 A KR 20050003767A
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reactor
solid
fluidized bed
recovery
gas
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KR1020030045260A
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Korean (ko)
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KR100527420B1 (en
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이창근
진경태
선도원
한근희
배달희
박재현
조성호
유호정
이승용
박상도
문길호
유정석
우광제
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한국에너지기술연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1475—Removing carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

PURPOSE: To provide a system for separating and recovering CO2, the system capable of easily performing temperature control and continuous operation of the reactor by using a conveyance reactor or fluidized bed reactor having a high flow rate as a reactor for recovering CO2. CONSTITUTION: The system for separating and recovering CO2 comprises: a recovery reactor(1) for recovering CO2 by contacting CO2-contained gas(11) supplied from the outside with a dry type solid absorbent; a cyclone number 1(3a) connected to the recovery reactor to exhaust gas and separate solid containing CO2 only; a fluidized bed reactor(2) for separating the solid into CO2 and a dry type solid absorbent using a fluidization gas(8) by receiving solid containing CO2 through a solid transfer pipe(7) comprising a loop chamber(5) connected to the cyclone number 1, and sending the separated dry type solid absorbent to the recovery reactor again through a transfer means; and a cyclone number 2(3b) for releasing CO2 separated from the fluidized bed reactor to the outside so that the separated CO2 is used.

Description

ＣＯ2 분리회수장치{CO2 capturing process}CO2 separation and recovery device {CO2 capturing process}

본 발명은 CO2분리회수장치에 관한 것으로, 더욱 상세하게는 CO2를 선택적으로 흡수하는 전달반응기와, CO2를 잡고있는 고체입자가 CO2를 놓아주면서 원래의 상태로 재생되는 재생반응기로 구성된 CO2분리회수장치에 관한 것이다.The present invention relates to a CO 2 separation and recovery device, more specifically, the solid particles holding the transport reactor and, CO 2, optionally absorbing the CO 2 while placing the CO 2 comprised of reproduction reactor to be reproduced to the original state It relates to a CO 2 separation recovery device.

종래의 CO2를 회수하는 공정으로는 습식법에 의한 공정이었다. 즉 아민류 계통의 용액을 통과하여 CO2를 흡수하게 하고 재생탑에서 그 용액을 재생하는 방식인 것이다. 습식법의 경우 폐수가 생기는 문제점을 가지고 있다.The process of recovering the conventional CO 2 was a process by a wet method. In other words, it is a way to absorb the CO 2 through the amine-based solution and to regenerate the solution in the regeneration tower. The wet method has a problem in that wastewater is generated.

이를 극복하기 위하여 건식법이 발명되었다. 건식법은 2탑 반응기를 사용하여 CO2를 분리 회수하는 방법으로, 배가스에 함유되어 있는 CO2가스와 건식고체흡수제를 균일하게 접촉하도록 하여 CO2만을 선택적으로 포집하여 회수한다.The dry method was invented to overcome this. The dry method is a method of separating and recovering CO 2 using a two- tower reactor. The CO 2 gas contained in the exhaust gas is brought into uniform contact with the dry solid absorbent to selectively collect and recover only CO 2 .

종래의 기술은 회수반응기를 이동층으로 사용하였으나 반응이 발열반응으로 유지되기 때문에 온도조절에 문제점이 있으며 낮은 유속으로 반응기의 크기가 커야했다.Conventional technology uses a recovery reactor as a moving bed, but there is a problem in temperature control because the reaction is maintained in an exothermic reaction and the size of the reactor has to be large at low flow rates.

본 발명은 상기와 같은 문제점을 해소하기 위하여 안출된 것으로, CO2를 회수하는 반응기로서 높은 유속의 전달반응기 또는 유동층반응기를 이용하여, 반응기의 온도조절과 연속운전이 용이한 CO2분리회수장치를 제공하는 것을 목적으로 한다.The present invention has been made in order to solve the above problems, using a high flow rate transfer reactor or a fluidized bed reactor as a reactor for recovering CO 2 , a CO 2 separation recovery device for easy temperature control and continuous operation of the reactor It aims to provide.

도 1은 실시예 1의 공정도1 is a process diagram of Example 1

도 2는 실시예 2의 공정도2 is a flowchart of Example 2

도 3은 실시예 3의 공정도3 is a flowchart of Example 3;

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1: 회수반응기 2,2': 유동층반응기1: Recovery reactor 2,2 ': Fluidized bed reactor

3a,3b,3c: 사이클론 4: 가스분산판3a, 3b, 3c: cyclone 4: gas dispersion plate

5: 루프실 6a,6b,7,10: 고체이송파이프5: roof seal 6a, 6b, 7, 10: solid conveying pipe

8: 유동화가스 9: 고체이송가스8: Fluidized Gas 9: Solid Transfer Gas

11: CO2포함가스 12: 상승관11: CO 2 containing gas 12: Rising pipe

상기의 목적을 달성하기 위해 안출된 본 발명은, 외부로부터 공급된 CO2함유가스(11)가 건식고체흡수제와 접촉하여 CO2를 회수하는 회수반응기(1); 상기 회수반응기(1)와 연결되어 기체는 배출시키고 CO2를 함유하고 있는 고체만 분리하는 사이클론1(3a); 상기 사이클론1(3a)과 연결된 루프실(5)을 포함하는 고체이송파이프(7)를 통해 CO2를 함유하고 있는 고체를 공급받아 유동화가스(8)를 이용하여 CO2와 건식고체흡수제로 분리하고, 분리된 건식고체흡수제를 이송수단을 통해 다시 회수반응기(1)로 보내는 유동층반응기(2); 및 상기 유동층반응기(2)에서 응축 분리된 CO2를 외부에서 이용할 수 있도록 방출하는 포함하는 사이클론2(3b)을 포함하는 CO2분리회수장치이다.The present invention devised to achieve the above object, the recovery reactor (1) for recovering CO 2 in contact with the dry solid absorbent CO 2 containing gas (11) supplied from the outside; A cyclone 1 (3a) connected to the recovery reactor 1 for discharging the gas and separating only the solid containing CO 2 ; Solids containing CO 2 are supplied through the solid transfer pipe 7 including the loop chamber 5 connected to the cyclone 1 (3a) to separate the CO 2 and the dry solid absorbent by using the fluidizing gas (8). And, a fluidized bed reactor (2) for sending the separated dry solid absorbent back to the recovery reactor (1) through the transfer means; And a cyclone 2 (3b) including the CO 2 condensed and separated from the fluidized bed reactor 2 to be used outside.

상기에서 이송수단은 재생반응기(2)의 측면과 회수반응기(1)의 하부를 연결하는 루프실(5)을 포함하는 고체이송파이프(6a)이고, CO2포함가스는 회수반응기(1)로 유입되는 것을 특징으로 하거나, 이송수단은 재생반응기(2)의 하단과 회수반응기(1)의 하부를 연결하며 수평으로 형성된 고체이송파이프(6b)이고, CO2포함가스는 상기 고체이송파이프(6b)로 유입되는 것을 특징으로 한다.The conveying means is a solid conveying pipe (6a) comprising a loop chamber (5) connecting the side of the regeneration reactor (2) and the lower part of the recovery reactor (1), the CO 2 containing gas to the recovery reactor (1) Characterized in that the flow, or the conveying means is a solid conveying pipe (6b) formed horizontally connecting the lower end of the regeneration reactor (2) and the recovery reactor (1), the CO 2 containing gas is the solid conveying pipe (6b) It is characterized by flowing in).

또 다른 발명은, 고체이송가스(9)가 건식고체흡수제를 이송시키는 상승관(12); 상기 상승관(12)과 연결되어 이송가스는 배출시키고 고체만 분리하는 사이클론1(3a); 상기 사이클론1(3a)과 연결된 루프실(5)을 포함하는 고체이송파이프(7)를 통해 상기 고체와, 외부로부터 공급된 CO2함유가스(11)를 공급받아 CO2회수반응기 역할을 하는 유동층반응기1(2'); 상기 유동층반응기(2')와 고체이송파이프(10)로 연결되고, 유동화가스(8)를 이용하여 CO2와 건식고체흡수제로 분리하고, 분리된 건식고체흡수제를 이송수단을 통해 다시 상승관(12)으로 보내는 재생용 유동층반응기2(2); 및 상기 유동층반응기1(2') 및 유동층반응기2(2)에서 분리된 CO2를 외부에서 이용할 수 있도록 방출하는 사이클론2,3(3b, 3c)을 포함하는 CO2분리회수장치이다.Still another invention includes a riser pipe 12 through which a solid transfer gas 9 carries a dry solid absorbent; A cyclone 1 (3a) connected to the rising pipe 12 to discharge the transfer gas and separate only the solid; Fluidized bed acting as a CO 2 recovery reactor by receiving the solid and the CO 2 -containing gas 11 supplied from the outside through a solid transfer pipe 7 including a loop chamber 5 connected to the cyclone 1 (3a) Reactor 1 (2 '); The fluidized bed reactor 2 'and the solid transfer pipe 10 are connected to each other, and the CO 2 and the dry solid absorbent are separated using the fluidized gas 8, and the separated dry solid absorbent is raised again through a transfer means ( Regeneration fluidized bed reactor 2 (2) sent to 12); And a CO 2 separation and recovery apparatus comprising a cyclone 2,3 (3b, 3c) to be used for emitting the separated CO 2 from the outside of the fluid bed reactor 1, (2 ') and a second fluidized bed reactor (2).

이하, 본 발명을 실시예 및 도면을 통하여 상세히 설명한다.Hereinafter, the present invention will be described in detail through examples and drawings.

도 1은 본 발명의 제1실시예로써, 회수반응기(1), 재생반응기인 유동층반응기(2), 사이클론(3a,3b), 고체이송파이프(6a,7)로 구성되어 있다.1 is a first embodiment of the present invention, and comprises a recovery reactor 1, a fluidized bed reactor 2 which is a regeneration reactor, cyclones 3a and 3b, and solid transfer pipes 6a and 7.

본 발명과 같이 유동층반응기를 사용함으로써, 유속을 높임으로 인한 반응기의 단면적이 줄어들고 공정 구성도 간단하게 되며, 발열이 적어 온도제어가 수월해진다.By using the fluidized bed reactor as in the present invention, the cross-sectional area of the reactor is reduced due to the increased flow rate, the process configuration is simplified, and the heat generation is less, which facilitates the temperature control.

CO2포함가스(11)는 가스분산판(4)을 통과하여 회수반응기(1) 내부로 공급되고, 상기 회수반응기(1) 안에서 건식고체흡수제와 접촉하여 CO2가 회수된다.The CO 2 containing gas 11 passes through the gas distribution plate 4 and is supplied into the recovery reactor 1, and CO 2 is recovered by contacting the dry solid absorbent in the recovery reactor 1.

상기 상승관과 연결된 사이클론(3a)에서는 고체와 기체를 분리하여 CO2와 결합한 고체입자만 통과시키고, 기체를 외부로 방출한다.In the cyclone (3a) connected to the riser, the solid and the gas are separated to pass only the solid particles combined with CO 2, and the gas is discharged to the outside.

사이클론(3a)를 통과한 고체입자는 루프실(5)이 형성된 고체이송파이프(7)를거쳐 재생반응기인 유동층반응기(2)에 주입된다.The solid particles having passed through the cyclone 3a are injected into the fluidized bed reactor 2, which is a regeneration reactor, through the solid transfer pipe 7 having the loop chamber 5 formed thereon.

여기서 루프실(5)은 양 반응기 사이의 기체흐름의 차단 역할을 한다.Here, the roof chamber 5 serves to block the gas flow between both reactors.

유동층반응기(2)에서는 하부에서 유동화가스(8)가 가스분산판(4)을 거쳐 공급되어, 사이클론(3a)를 통과한 고체입자를 유동화에 의해 재생하여 CO2와 건식고체흡수제로 분리하고, 분리된 건식고체흡수제를 이송수단인 루프실(5)를 포함하는 고체이송파이프(6a)를 통해 다시 회수반응기(1)로 보낸다.In the fluidized bed reactor (2), the fluidized gas (8) is supplied through the gas distribution plate (4) at the bottom, and the solid particles passing through the cyclone (3a) is regenerated by fluidization to separate the CO 2 and the dry solid absorbent, The separated dry solid absorbent is sent back to the recovery reactor 1 through the solid transfer pipe 6a including the loop chamber 5 as a transfer means.

이 때, 발생한 CO2를 사이클론2(3b)를 이용하여 분리된 CO2가스를 사용하기 위해 외부로 방출한다.At this time, the generated CO 2 is discharged to the outside for use of the separated CO 2 gas using cyclone 2 (3b).

상기 고체이송파이프(7,6a)에서 고체의 이송은 고체의 자중에 의한다.The transfer of solids in the solid transfer pipes 7 and 6a is due to the weight of the solids.

도 2는 본 발명의 제2실시예로써, 회수반응기(1), 재생반응기인 유동층반응기(2), 사이클론(3a,3b), 고체이송파이프(6b,7)로 구성되어 있다.FIG. 2 shows a second embodiment of the present invention, which is composed of a recovery reactor 1, a fluidized bed reactor 2 which is a regeneration reactor, cyclones 3a and 3b, and solid transfer pipes 6b and 7. As shown in FIG.

제1실시예와의 차이는 재생반응기인 유동층반응기(2)에서 회수반응기(1)로의 고체흐름이 수평으로 형성된 고체이송파이프(6b)에 의하여 이루어진다는 것이다. 따라서, 수평형상의 고체이송파이프(6b)를 사용하여 공정이 간단하게 구성된다.The difference from the first embodiment is that the solid flow from the fluidized bed reactor 2, which is a regeneration reactor, to the recovery reactor 1 is made by the solid conveying pipe 6b formed horizontally. Therefore, the process is easily configured by using the horizontal solid transfer pipe 6b.

다만, 수평형상의 고체이송파이프(6b)를 사용하므로 고체를 이송시키기 위한 수단이 요구된다. 따라서, 본 발명은 CO2함유가스(11)를 고체이송파이프(6b)에 직접 유입하여 고체를 회수반응기로 이송하는 고체이송가스의 역할을 하도록 하였다.However, since a horizontal solid conveying pipe 6b is used, a means for conveying solids is required. Therefore, the present invention is to direct the CO 2 containing gas (11) into the solid transfer pipe (6b) to serve as a solid transfer gas for transferring the solid to the recovery reactor.

도 3은 본 발명의 제3실시예로써, 상승관(12), 2개의 유동층반응기(2,2'), 사이클론(3a,3b,3c), 고체이송파이프(6b,7,10)으로 구성되어 있다.3 is a third embodiment of the present invention, comprising a riser 12, two fluidized bed reactors 2 and 2 ', cyclones 3a, 3b and 3c, and solid conveying pipes 6b, 7 and 10. It is.

여기서 유동층반응기(2')가 CO2의 흡수반응을 일으키는 회수반응기이고, 유동층반응기(2)이 재생반응기로써 역할한다. 여기서, 상승관(12)은 단지 고체를 상향이송시키는 역할을 한다.In this case, the fluidized bed reactor 2 'is a recovery reactor causing CO 2 absorption reaction, and the fluidized bed reactor 2 serves as a regeneration reactor. Here, the riser 12 only serves to transport the solid up.

회수반응기와 재생반응기인 유동층반응기(2,2')는 고체이송파이프(10)에 의해 연결된다.The recovery reactor and the fluidized bed reactors 2 and 2 ', which are the regeneration reactors, are connected by the solid transfer pipe 10.

재생반응기인 유동층반응기(2)로부터 회수반응기인 유동층반응기(2')로 입자를 이송시키기 위해서 고체이송파이프(6b)와 상승관(12)을 사용하였다.In order to transfer the particles from the fluidized bed reactor 2, which is a regeneration reactor, to the fluidized bed reactor 2 ', which is a recovery reactor, a solid conveying pipe 6b and a riser 12 were used.

CO2함유가스(11)는 유동층반응기(2')에 유입된다. 또한, 수평형태의 고체이송파이프(6b)에는 고체의 이송을 원할히 하기 위해 고체이송가스(9)를 주입하였다.The CO 2 containing gas 11 flows into the fluidized bed reactor 2 '. In addition, a solid transfer gas 9 was injected into the horizontal solid transfer pipe 6b in order to facilitate the transfer of the solid.

상승관(12)과 유동층반응기(2,2')에는 사이클론(3a,3b,3c)가 각각 연결되어 기체상태의 물질 만을 외부로 방출시킨다.Cyclones 3a, 3b, and 3c are connected to the riser 12 and the fluidized bed reactors 2 and 2 ', respectively, to release only gaseous substances to the outside.

본 발명으로서 온실가스의 주범인 이산화탄소 저감 및 처리를 위한 대책으로 지구 온난화 방지에 능동적으로 대처할 수 있다. 즉, 두 반응기 사이의 고체의 흐름이 정체되는 부분이 생기지 않으며, 복잡한 기계적 밸브를 사용하지 않고 간단하게 구성되어 있다. 공정의 관점에서 볼 때는 공정이 간결하고 비용을 줄일 수 있는 효과가 있다.As the present invention, it is possible to actively cope with global warming prevention as a measure for reducing and treating carbon dioxide, which is the main culprit of greenhouse gases. That is, there is no part where the flow of solids between the two reactors is stagnant, and it is simply configured without using a complicated mechanical valve. From the point of view of the process, the process is both concise and cost effective.

재생용 고체 흡수제를 이용한 CO2회수장치개발로 에너지가 절약되고 저가의CO2분리회수 기술을 확보할 수 있으며, 차세대 예연소(pre-combustion) CO2포획기술과 CLC(Chemical Looping Combustor)에 적용 가능한 공정기술이다.Energy saving and low cost CO 2 separation recovery technology can be secured by developing CO 2 recovery system using solid absorbent for regeneration, and applied to next generation pre-combustion CO 2 capture technology and chemical looping compressor (CLC) Possible process technology.

Claims (4)

외부로부터 공급된 CO2함유가스(11)가 건식고체흡수제와 접촉하여 CO2를 회수하는 회수반응기(1);A recovery reactor 1 for recovering CO 2 by contacting a dry solid absorbent with a CO 2 -containing gas 11 supplied from the outside; 상기 회수반응기(1)와 연결되어 기체는 배출시키고 CO2를 함유하고 있는 고체만 분리하는 사이클론1(3a);A cyclone 1 (3a) connected to the recovery reactor 1 for discharging the gas and separating only the solid containing CO 2 ; 상기 사이클론1(3a)과 연결된 루프실(5)을 포함하는 고체이송파이프(7)를 통해 CO2를 함유하고 있는 고체를 공급받아 유동화가스(8)를 이용하여 CO2와 건식고체흡수제로 분리하고, 분리된 건식고체흡수제를 이송수단을 통해 다시 회수반응기(1)로 보내는 유동층반응기(2); 및Solids containing CO 2 are supplied through the solid transfer pipe 7 including the loop chamber 5 connected to the cyclone 1 (3a) to separate the CO 2 and the dry solid absorbent by using the fluidizing gas (8). And, a fluidized bed reactor (2) for sending the separated dry solid absorbent back to the recovery reactor (1) through the transfer means; And 상기 유동층반응기(2)에서 분리된 CO2를 이용할 수 있도록 외부로 방출하는 사이클론2(3b)을 포함하는 CO2분리회수장치CO 2 separation recovery device including cyclone 2 (3b) to be discharged to the outside to use the CO 2 separated in the fluidized bed reactor (2) 제1항에 있어서, 이송수단은 재생반응기(2)의 측면과 회수반응기(1)의 하부를 연결하는 루프실(5)을 포함하는 고체이송파이프(6a)이고, CO2포함가스는 회수반응기(1)로 유입되는 것을 특징으로 하는 CO2분리회수장치2. The conveying means according to claim 1, wherein the conveying means is a solid conveying pipe (6a) comprising a loop chamber (5) connecting the side of the regeneration reactor (2) and the lower part of the recovery reactor (1), and the CO 2 containing gas is a recovery reactor. (2) CO 2 separation recovery device characterized in that flowed into 제1항에 있어서, 이송수단은 재생반응기(2)의 하단과 회수반응기(1)의 하부를 연결하며 수평으로 형성된 고체이송파이프(6b)이고, CO2포함가스는 상기 고체이송파이프(6b)로 유입되는 것을 특징으로 하는 CO2분리회수장치The conveying means is a solid conveying pipe (6b) formed horizontally connecting the lower end of the regeneration reactor (2) and the lower part of the recovery reactor (1), and the CO 2 containing gas is the solid conveying pipe (6b). CO 2 separation recovery device characterized in that the flow into 고체이송가스(9)가 건식고체흡수제를 이송시키는 상승관(12);A rising pipe 12 through which the solid transfer gas 9 conveys the dry solid absorbent; 상기 상승관(12)과 연결되어 이송기체는 배출시키고 고체만 분리하는 사이클론1(3a);A cyclone 1 (3a) connected to the rising pipe 12 to discharge the transfer gas and separate only the solid; 상기 사이클론1(3a)과 연결된 루프실(5)을 포함하는 고체이송파이프(7)를 통해 고체와, 외부로부터 공급된 CO2함유가스(11)를 공급받아 회수반응기의 역할을 하는 유동층반응기1(2');Fluidized bed reactor 1 serving as a recovery reactor by receiving a solid and a CO 2 -containing gas 11 supplied from the outside through a solid transfer pipe 7 including a loop chamber 5 connected to the cyclone 1 (3a). (2'); 상기 유동층반응기(2')와 고체이송파이프(10)로 연결되고, 유동화가스(8)를 이용하여 CO2와 건식고체흡수제로 분리하고, 재생된 건식고체흡수제를 이송수단을 통해 다시 상승관(12)으로 보내는 재생용 유동층반응기2(2); 및The fluidized bed reactor 2 'and the solid transfer pipe 10 are connected to each other, and the CO 2 and the dry solid absorbent are separated using the fluidized gas 8, and the regenerated dry solid absorbent is again raised through the transfer means. Regeneration fluidized bed reactor 2 (2) sent to 12); And 상기 유동층반응기1(2') 및 유동층반응기2(2)에서 분리된 CO2를 이용할 수 있도록 외부로 방출하는 사이클론2,3(3b, 3c)을 포함하는 CO2분리회수장치CO 2 separation recovery device including cyclones 2,3 (3b, 3c) to be discharged to the outside to use the separated CO 2 in the fluidized bed reactor 1 (2 ') and fluidized bed reactor 2 (2)
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