JPS61254221A - Apparatus for removing co2 - Google Patents

Apparatus for removing co2

Info

Publication number
JPS61254221A
JPS61254221A JP60093599A JP9359985A JPS61254221A JP S61254221 A JPS61254221 A JP S61254221A JP 60093599 A JP60093599 A JP 60093599A JP 9359985 A JP9359985 A JP 9359985A JP S61254221 A JPS61254221 A JP S61254221A
Authority
JP
Japan
Prior art keywords
gas
adsorption tank
adsorbent
tank
steam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP60093599A
Other languages
Japanese (ja)
Other versions
JPH0568290B2 (en
Inventor
Masashi Hirao
平尾 雅士
Shuichi Sato
秀一 佐藤
Toyoo Sawada
沢田 豊男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP60093599A priority Critical patent/JPS61254221A/en
Publication of JPS61254221A publication Critical patent/JPS61254221A/en
Publication of JPH0568290B2 publication Critical patent/JPH0568290B2/ja
Granted legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02CCAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00Capture or disposal of greenhouse gases
    • Y02C20/40Capture or disposal of greenhouse gases of CO2

Landscapes

  • Respiratory Apparatuses And Protective Means (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

PURPOSE:To enhance heat recovery efficiency, by mounting a heat exchanger for preheating water supplied to a steam generator for generating steam for desorption by the gas led out from an adsorbing tank. CONSTITUTION:At first, air is passed through an adsorbing tank 1 to adsorb CO2 and steam is flowed to an adsorbing tank 2 to desorb CO2. Subsequently, the rising in the temp. of steam is detected by a CO2 temp. detection sensor and an automatic change-over valve is controlled by a controller to change-over the adsorbing tank 1 and the adsorbing tank 2. When CO2 is detected by a CO2 concn. detection sensor, the automatic change-over valve is controlled in the same way to recover CO2 in a CO2 recovery tank 6'. Because the temp. of an adsorbent is high at the initial period of adsorption, treated gas is exhausted in a high temp. and high humidity state and heats the water flowing through a water feed pipe 21' in a heat exchanger 28 while the heated water is sent to a steam generator 23.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は密閉空間2例えば宇宙ステーション。[Detailed description of the invention] (Industrial application field) The present invention is applicable to a closed space 2 such as a space station.

潜水艦、ライフサイエンス実験室等で使用するCO2除
去装置に関するものである。
This relates to CO2 removal equipment used in submarines, life science laboratories, etc.

(従来の技術) 従来のCot(二酸化炭素)除去装置は2アミン系イオ
ン交換樹脂や活性炭等の吸着剤を使用して、気体中から
CO2を脱着した後、吸着剤に水蒸気を流し、同吸着剤
からCO2を分離して2回収するようにしている。
(Prior art) Conventional Cot (carbon dioxide) removal equipment uses an adsorbent such as a diamine ion exchange resin or activated carbon to desorb CO2 from the gas, and then flows water vapor through the adsorbent to absorb the same. CO2 is separated from the agent and recovered twice.

(発明が解決しようとする問題点) その場合、CO□を含有する空気が吸着槽に入り、CO
,が同吸着槽内に充填された吸着剤に吸着される一方、
Cogを分離した空気が同吸着槽から排出され2次いで
同吸着槽に置換ガスの水蒸気が供給される。このとき、
水蒸気の凝縮が起こり、吸着剤が加熱され、吸着剤に吸
着されていたCO2が吸着剤から脱着されて、吸着剤が
再生されると同時に脱着されたCO□が回収される。こ
の再生された吸着剤は、凝縮水等の水分をもっているが
、脱着完了後の吸着剤は高温であり、CO2を含有する
空気が再び流れ始めると、同空気が加熱されると同時に
水分が蒸発して、吸着剤の乾燥と冷却とが行われ、同時
にCO2の吸着が再開される。上記吸着槽から排出され
るCO□を分離した空気が持っている熱エネルギーは、
水蒸気発生に要するエネルギーに略等しく、この熱を回
収して、省エネルギーを図る必要がある。
(Problem to be solved by the invention) In that case, air containing CO□ enters the adsorption tank and CO
, is adsorbed by the adsorbent filled in the adsorption tank, while
The air from which the Cog has been separated is discharged from the adsorption tank, and then water vapor as a replacement gas is supplied to the adsorption tank. At this time,
Condensation of water vapor occurs, the adsorbent is heated, the CO2 adsorbed on the adsorbent is desorbed from the adsorbent, and the adsorbent is regenerated and at the same time the desorbed CO□ is recovered. This regenerated adsorbent contains moisture such as condensed water, but the adsorbent is at a high temperature after completion of desorption, and when the air containing CO2 starts flowing again, the air is heated and the moisture evaporates. Then, the adsorbent is dried and cooled, and at the same time, CO2 adsorption is restarted. The thermal energy possessed by the air from which the CO□ discharged from the adsorption tank is separated is
This heat is approximately equal to the energy required to generate water vapor, and it is necessary to recover this heat to save energy.

(問題点を解決するための手段) 本発明は前記の問題点に対処するもので、CO2を含有
する気体を導くガス導入管と、同ガス導入管により供給
された気体中からCOzを捕獲する吸着剤を内部に充填
した吸着槽と、COtから分離した気体を同吸着槽内か
ら導出するガス導出管と、気体から分離したCOtを同
吸着槽内から導出するCCh導出管と、水蒸気を同吸着
槽内へ供給する水蒸気発生器と、上記各導出管と上記水
蒸気発生器から上記吸着槽への水蒸気流通経路とに設け
た開閉弁と、前記水蒸気発生器へ供給される給水を前記
ガス導出管からの気体により予熱する熱交換器とを具え
ていることを特徴としたCO2除去装置に係わり、その
目的とする処は、熱回収効率を向上できる。またガス導
出管に設ける排出気体冷却用ターラの容量を小さくでき
る改良されたCo2除去装置を供する点にある。
(Means for Solving the Problems) The present invention addresses the above-mentioned problems, and includes a gas introduction pipe for introducing a gas containing CO2, and a system for capturing COz from the gas supplied by the gas introduction pipe. An adsorption tank filled with adsorbent, a gas outlet pipe that leads out the gas separated from COt from inside the adsorption tank, a CCh lead-out pipe that leads out the COt separated from the gas from inside the adsorption tank, and a water vapor A steam generator for supplying into the adsorption tank, an on-off valve provided in each of the lead-out pipes and a steam flow path from the steam generator to the adsorption tank, and a gas derivation system for supplying water to be supplied to the steam generator. The present invention relates to a CO2 removal device characterized by comprising a heat exchanger that is preheated by gas from a tube, and its purpose is to improve heat recovery efficiency. Another object of the present invention is to provide an improved Co2 removal device that can reduce the capacity of the exhaust gas cooling colander provided in the gas outlet pipe.

本発明は前記のようにCO2を含有する気体を導くガス
導入管と、同ガス導入管により供給された気体中からC
O□を捕獲する吸着剤を内部に充填した吸着槽と、CO
zから分離した気体を同吸着槽内から導出するガス導出
管と、気体から分離したC Ozを同吸着槽内から導出
するC Oを導出管と、水蒸気を同吸着槽内へ供給する
水蒸気発生器と、上記各導出管と上記水蒸気発生器から
上記吸着槽への水蒸気流通経路とに設けた開閉弁と。
As described above, the present invention provides a gas introduction pipe for introducing a gas containing CO2, and a CO2-containing gas from the gas supplied by the gas introduction pipe.
An adsorption tank filled with adsorbent to capture O□ and CO
A gas derivation pipe for deriving the gas separated from Z from the adsorption tank, a CO derivation pipe for deriving the COz separated from the gas from the adsorption tank, and a steam generator for supplying water vapor into the adsorption tank. an on-off valve provided in each of the outlet pipes and a steam flow path from the steam generator to the adsorption tank.

前記水蒸気発生器へ供給される給水を前記ガス導出管か
らの気体により予熱する熱交換器とを具えており、開閉
弁を切り換えて、COtを含有する空気からCO2を除
去するとき、即ち、C02を含有する空気が吸着槽に入
り、CO□が同吸着槽内に充填された吸着剤に吸着され
る一方、CO。
It is equipped with a heat exchanger that preheats the feed water supplied to the steam generator with the gas from the gas outlet pipe, and when removing CO2 from air containing COt by switching the on-off valve, that is, CO2 Air containing CO enters the adsorption tank, and CO□ is adsorbed by the adsorbent filled in the adsorption tank, while CO.

を分離した空気が同吸着槽からガス導出管を経て排出さ
れ2次いで吸着槽に水蒸気が供給されて。
The separated air is discharged from the adsorption tank through a gas outlet pipe, and then water vapor is supplied to the adsorption tank.

吸着剤が加熱され、吸着剤に吸着されていたCO2が吸
着剤から脱着されて、吸着剤が再生されると同時に脱着
されたC OzがCOt導出管を経て回収され2次いで
CO□の脱着を完了した直後の高温吸着剤にCOzを含
有する空気が再び供給されて、同空気が加熱されると同
時に水分が蒸発して、吸着剤の乾燥と冷却とが行われ、
同時にCO2の吸着が再開されて、加熱された空気がガ
ス導出管を経て排出されるときに、給水管内を流れて。
The adsorbent is heated, the CO2 adsorbed on the adsorbent is desorbed from the adsorbent, and at the same time the adsorbent is regenerated, the desorbed COz is recovered via the COt outlet pipe, and then CO□ is desorbed. Air containing COz is again supplied to the high-temperature adsorbent immediately after completion, and the air is heated and moisture evaporates at the same time, drying and cooling the adsorbent.
At the same time, CO2 adsorption is resumed and the heated air flows through the water supply pipe as it is discharged through the gas outlet pipe.

水蒸気発生器に向かう給水が熱交換器で上記ガス導出管
を経て排出される高温の空気により予熱されるので、熱
回収効率が向上される。またガス導出管には、排出され
る気体の温度を低下させるために、排出気体冷却用クー
ラを設けるが、上記のように給水に熱を与えて温度の低
下した気体が同排出気体冷却用ターラに入るので、排出
気体冷却用ターラの容量が小さくてよいようになる。
Since the feed water headed for the steam generator is preheated in the heat exchanger by the high temperature air discharged through the gas outlet pipe, heat recovery efficiency is improved. In addition, a cooler for cooling the discharged gas is installed in the gas outlet pipe in order to lower the temperature of the discharged gas, but as mentioned above, the gas whose temperature has been lowered by applying heat to the water supply is transferred to the cooler for cooling the discharged gas. , the capacity of the exhaust gas cooling roller can be small.

(実施例) 次に本発明のCO,除去装置を第1図に示す一実施例に
より説明すると、 (1)(2)が空気中からCO2を
捕獲する吸着剤(アミン系イオン交換樹脂或いは活性炭
等) (la) (2a)を内部に充填した吸着槽、 
(19)がCotを含有する空気を上記吸着槽(1) 
(2)の入口側に導くガス導入管、(4)が同ガス導入
管(19)に設けた空気ファン、 (11) (13)
が同ガス導入管(19)に設けた自動切換弁、 (23
)が水供給源から供給された給水を加熱して水蒸気にす
る水蒸気発生器、 (21)が同水蒸気発生器(23)
で発生した水蒸気(置換ガス)を上記吸着槽(1) (
2)の入口側に導く水蒸気導入管、 (16)(1B)
が同水蒸気導入管(21)に設けた自動切換弁、 (2
0)がCOzから分離した空気を上記吸着槽(1) (
2)の出口側から導出するガス導出管、 (12) (
14)が同ガス導出管(20)に設けた自動切換弁、 
(22)が吸着剤(la) (2a)から脱着 。
(Example) Next, the CO removal device of the present invention will be explained using an example shown in FIG. etc.) (la) An adsorption tank filled with (2a) inside,
(19) transfers the air containing Cot to the above adsorption tank (1).
(2) A gas introduction pipe leading to the inlet side, (4) an air fan installed on the same gas introduction pipe (19), (11) (13)
is an automatic switching valve installed in the same gas introduction pipe (19), (23
) is a steam generator that heats water supplied from a water supply source to turn it into steam, and (21) is the steam generator (23).
The water vapor (replacement gas) generated in the above adsorption tank (1) (
2) Steam introduction pipe leading to the inlet side, (16) (1B)
is an automatic switching valve installed in the steam introduction pipe (21), (2
0) separates the air from COz into the adsorption tank (1) (
2) Gas outlet pipe leading out from the outlet side of (12) (
14) is an automatic switching valve installed in the gas outlet pipe (20),
(22) is desorbed from adsorbent (la) (2a).

したCO□を上記吸着槽(1) (2)の出口側から取
り出すCOz導出管、(15) (17)が同ガス導出
管(22)に設けた自動切換弁、(6)が同ガス導出管
(22)ニ設けたCOt圧縮機、(6°)が同ガス導出
管(22)に設けたCO2タンク、(21”)が水供給
源から上記水蒸気発生器(23)へ延びた給水管、 (
28)が同給水管(21′)中を流れる給水を上記ガス
導出管(20)からの空気により予熱する熱交換器、(
28”)が同ガス導出管(20)の下流側に設けた排出
空気冷却用ターラである。なお上記吸着槽(1) (2
)の出口側には、Cotの脱着状態を検出するCO□検
出センサがあり、同各COt検出センサからの検出信号
に基づいて上記各自動切換弁(11)〜(18)を制御
する制御器があるが、同各CO□検出センサ及び同制御
器は1図示を省略している。
The COz outlet pipe takes out the CO□ from the outlet side of the adsorption tanks (1) and (2), (15) and (17) are automatic switching valves installed on the gas outlet pipe (22), and (6) is the gas outlet pipe. The COt compressor is installed in the pipe (22), the CO2 tank (6°) is installed in the same gas outlet pipe (22), and the water supply pipe (21'') extends from the water supply source to the steam generator (23). , (
28) is a heat exchanger for preheating the water supply flowing through the water supply pipe (21') with the air from the gas outlet pipe (20);
28'') is a exhaust air cooling colander installed on the downstream side of the gas outlet pipe (20).
) is equipped with a CO□ detection sensor that detects the state of attachment and detachment of Cot, and a controller that controls each of the automatic switching valves (11) to (18) based on the detection signal from each COt detection sensor. However, illustration of each CO□ detection sensor and the same controller is omitted.

(作用) 次に前記第1図に示したC Oを除去装置の作用を説明
する。いま吸着槽(1)の吸着剤(1a)が空気からC
O□を吸着中であり、吸着槽(2)の吸着剤(2a)が
COzを脱着中であるとすると、自動切換弁(11) 
(12) (17) (18)は開状態、自動切換弁(
13) (14) (15) (16)は閉状態、空気
ファン(4)及びCOZ圧縮機(5)は作動中、吸着槽
(2)出口側のCO!濃度検出センサはCOz濃度を検
出中である。この状態で引き続き吸着槽(2)でCOt
の脱着を続けると、水蒸気の流入による温度上昇により
、CO□温度検出センサが作動し、そのとき得られるC
 Oz温度検出信号が同CO2濃度検出センサから制御
器へ送られ、同制御器から自動切換弁(11)(17)
 (1B)へ閉の制御信号が送られ、同制御器から自動
切換弁(13) (14) (15)へ開の制御信号が
送られて、同自動切換弁(11) (17) (18)
が閉じ、同自動切換弁(13) (14) (15)が
開いて、吸着槽(1)が脱着状態に入り、吸着槽(2)
が吸着状態に入る。またこの状態になって、吸着槽(1
)出口側のCOを濃度検出センサがCO□を検出すると
、そのとき得られるCO□濃度検出信号が同COZ濃度
検出センサから制御器へ送られ、同制御器から自動切換
弁(16)へ開の制御信号が送られ、同制御器から自動
切換弁(12)へ閉の制御信号が送られて、同自動切換
弁(16)が開き、同自動切換弁(12)が閉じて、C
OtがCOtタンク(6゛)に回収される。またその後
に吸着槽(1)出口側のCOz温度検出センサが水蒸気
によるCotの温度上昇を検出すると、そのとき得られ
るCO□温度検出信号が同COz温度検出センサから制
御器゛へ送られ、同制御器から自動切換弁(11) (
12) (17)へ開の制御信号が送られ。
(Function) Next, the function of the C 2 O removal device shown in FIG. 1 will be explained. Now, the adsorbent (1a) in the adsorption tank (1) is absorbing C from the air.
Assuming that O□ is being adsorbed and the adsorbent (2a) in the adsorption tank (2) is desorbing COz, the automatic switching valve (11)
(12) (17) (18) are open, automatic switching valve (
13) (14) (15) (16) are closed, air fan (4) and COZ compressor (5) are operating, CO! The concentration detection sensor is currently detecting the COz concentration. In this state, COt is continued in the adsorption tank (2).
As the desorption of CO continues, the temperature rises due to the inflow of water vapor, which activates the CO□ temperature detection sensor, and the resulting C
Oz temperature detection signal is sent from the CO2 concentration detection sensor to the controller, and the automatic switching valve (11) (17) is sent from the controller.
A close control signal is sent to (1B), and an open control signal is sent from the controller to automatic switching valves (13), (14), and (15), which in turn send an open control signal to automatic switching valves (11), (17, and 18). )
closes, the automatic switching valves (13), (14), and (15) open, the adsorption tank (1) enters the desorption state, and the adsorption tank (2)
enters the adsorption state. In this state again, the adsorption tank (1
) When the concentration detection sensor detects CO□ in the CO on the outlet side, the CO□ concentration detection signal obtained at that time is sent from the COZ concentration detection sensor to the controller, and from the controller the automatic switching valve (16) is opened. A control signal is sent from the controller, a close control signal is sent to the automatic switching valve (12), the automatic switching valve (16) opens, the automatic switching valve (12) closes, and the automatic switching valve (12) closes.
Ot is collected in a COt tank (6゛). Furthermore, when the COz temperature detection sensor on the outlet side of the adsorption tank (1) detects a temperature rise in Cot due to water vapor, the COz temperature detection signal obtained at that time is sent from the COz temperature detection sensor to the controller. Automatic switching valve (11) from the controller (
12) An open control signal is sent to (17).

同制御器から自動切換弁(13) (15) (16)
へ閉の制御信号が送られて、同自動切換弁(11) (
12) (17)が開き、同自動切換弁(13) (1
5) (16)が閉じて、吸着槽(2)が脱着状態に入
る。また吸着槽(2)側のCO2濃度検出センサがCO
zを検出すると、そのとき得られるCO□濃度検出信号
が同CO2濃度検出センサから制御器へ送られ、同制御
器から自動切換弁(18)へ開の制御信号が送られ、同
制御器から自動切換弁(14)へ閉の制御信号が送られ
て、同自動切換弁(18)が開き、同自動切換弁(14
)が閉じて、CO,がCOzタンク(6゛)に回収され
る。それからも上記の作用が繰り返し行われて、Cog
が連続的に回収される。以上の説明から明らかなように
本実施例では、空気中のCOzを吸着槽(1) (2)
内に充填した吸着剤(la) (2a)に吸着し、また
同吸着剤(la) (2a)に吸着したCO,を水蒸気
により脱着すると戎に、吸着槽(1) (2)の出口側
に設けたC Oz濃度検出センサからの検出信号を脱着
開始信号とし、CO□温度検出センサからの検出信号を
脱着終了信号としている。また吸着槽の数は、処理量、
処理効率、運転時間等により決定されるが、空気を連続
的に処理する場合には、最低2槽が必要で、切り換え例
を第2図に示した。同2図では、平行線のない部分が吸
着状態を、水平の平行線部が空気追い出し状態を、斜め
の平行線部がCOを回収状態を、それぞれ示している。
Automatic switching valve (13) (15) (16) from the same controller
A close control signal is sent to the automatic switching valve (11) (
12) (17) opens, and the same automatic switching valve (13) (1
5) (16) is closed and the adsorption tank (2) enters the desorption state. In addition, the CO2 concentration detection sensor on the adsorption tank (2) side
When z is detected, the CO□ concentration detection signal obtained at that time is sent from the CO2 concentration detection sensor to the controller, and the controller sends an open control signal to the automatic switching valve (18). A close control signal is sent to the automatic switching valve (14), the automatic switching valve (18) opens, and the automatic switching valve (14) opens.
) is closed and CO, is recovered in the COz tank (6°). After that, the above action is repeated, and Cog
are collected continuously. As is clear from the above explanation, in this example, COz in the air is absorbed into adsorption tanks (1) (2).
When CO adsorbed on the adsorbent (la) (2a) filled in the adsorbent (la) (2a) and desorbed by the same adsorbent (la) (2a) is desorbed by water vapor, the outlet side of the adsorption tank (1) (2) The detection signal from the COz concentration detection sensor provided at is used as the desorption start signal, and the detection signal from the CO□ temperature detection sensor is used as the desorption end signal. In addition, the number of adsorption tanks depends on the processing amount,
Although it is determined by treatment efficiency, operating time, etc., if air is to be treated continuously, at least two tanks are required, and an example of switching is shown in Fig. 2. In FIG. 2, the portions without parallel lines indicate the adsorption state, the horizontal parallel lines indicate the air expulsion state, and the diagonal parallel lines indicate the CO recovery state.

吸着槽(1)または(2)が脱着工程から吸着工程に切
り換えられた吸着初期には、吸着槽内の吸着剤は。
At the initial stage of adsorption when the adsorption tank (1) or (2) is switched from the desorption process to the adsorption process, the adsorbent in the adsorption tank is

水蒸気により高温になっており、吸着剤に残留する高温
凝縮水が処理空気に同伴して蒸発し、吸着剤は乾燥、冷
却されるが、処理空気は高温の水分飽和に近い状態で排
出される。この熱エネルギーは、熱交換器(28)で給
水管(21’)内を流れる給水に与えられて、同給水が
予熱される。このときの状態を示したのが第4図で、高
温の水分飽和に近い状態で排出された処理空気が熱交換
器(28)の伝熱管(28a)内を流れて、給水管(2
1°)内を流れる給水が加熱される。蒸気発生器(23
)で必要とする熱エネルギーは、水蒸気導入管(21)
に設けた温度調節器(30)または圧力調節器(31)
からの検出信号に基づいて蒸気発生器(23)のヒータ
(加熱装置)の出力を制御するが、このとき、上記のよ
うに給水が予熱されており、その分だけヒータの出力が
少なくなる(第3図参照)。なおヒータの出力は。
The temperature is high due to water vapor, and the high-temperature condensed water remaining in the adsorbent evaporates along with the treated air, drying and cooling the adsorbent, but the treated air is discharged at a high temperature close to moisture saturation. . This thermal energy is given to the feed water flowing in the water supply pipe (21') by the heat exchanger (28) to preheat the feed water. The state at this time is shown in Fig. 4, where the treated air discharged at a high temperature and near moisture saturation flows through the heat exchanger tube (28a) of the heat exchanger (28), and the water supply pipe (2
1°) is heated. Steam generator (23
) The heat energy required by the steam introduction pipe (21)
Temperature regulator (30) or pressure regulator (31) installed in
The output of the heater (heating device) of the steam generator (23) is controlled based on the detection signal from the steam generator (23). (See Figure 3). Furthermore, the output of the heater is as follows.

熱交換器(28)の大きさにもよるが、10%程度節減
可能である。またガス導出管(20)の下流側に設けた
排出空気冷却用ターラ(28’)は、上記のように処理
空気が熱交換器(28)で冷却され為ことにより、その
容量が1/2程度に小さくなる。
Although it depends on the size of the heat exchanger (28), it is possible to save about 10%. In addition, the capacity of the discharge air cooling colander (28') provided downstream of the gas outlet pipe (20) is reduced to 1/2 because the treated air is cooled by the heat exchanger (28) as described above. becomes smaller to a certain degree.

(発明の効果) 本発明は前記のようにCOZを含有する気体を導くガス
導入管と、同ガス導入管により供給された気体中からC
O□を捕獲する吸着剤を内部に充填した吸着槽と、CO
,から分離した気体を同吸着槽内から導出するガス導出
管と、気体から分離したCotを同吸着槽内から導出す
るCO□導出管と、水蒸気を同吸着槽内へ供給する水蒸
気発生器と、上記各導出管と上記水蒸気発生器から上記
吸着槽への水蒸気流通経路とに設けた開閉弁と。
(Effects of the Invention) As described above, the present invention provides a gas introduction pipe for introducing a gas containing COZ, and a COZ-containing gas introduction pipe for introducing COZ from the gas supplied by the gas introduction pipe.
An adsorption tank filled with adsorbent to capture O□ and CO
, a gas derivation pipe for deriving the gas separated from the gas from the adsorption tank, a CO□ derivation pipe for deriving the Cot separated from the gas from the adsorption tank, and a steam generator for supplying water vapor into the adsorption tank. , an on-off valve provided in each of the outlet pipes and a steam flow path from the steam generator to the adsorption tank.

前記水蒸気発生器へ供給される給水を前記ガス導出管か
らの気体により予熱する熱交換器とを具えており、開閉
弁を切り換えて、Cogを含有する空気からCChを除
去するとき、即ち、COzを含有する空気が吸着槽に入
り、COzが同吸着槽内に充填された吸着剤に吸着され
る一方、CO□を分離した空気が同吸着槽からガス導出
管を経て排出され1次いで吸着槽に水蒸気が供給されて
and a heat exchanger that preheats the feed water supplied to the steam generator with the gas from the gas outlet pipe, and when removing CCh from the air containing Cog by switching the on-off valve, that is, COz The air containing CO enters the adsorption tank, and COz is adsorbed by the adsorbent filled in the adsorption tank, while the air from which CO□ has been separated is discharged from the adsorption tank through a gas outlet pipe and then sent to the adsorption tank. water vapor is supplied to.

吸着剤が加熱され、吸着剤に吸着されていたC02が吸
着剤から脱着されて、吸着剤が再生されると同時に脱着
されたCO,がCO,導出管を経て回収され1次いでC
Ozの脱着を完了した直後の高温吸着剤にCotを含有
する空気が再び供給されて、同空気が加熱されると同時
に水分が蒸発して、吸着剤の乾燥と冷却とが行われ、同
時に002の吸着が再開されて、加熱された空気がガス
導出管を経て排出されるときに、給水管内を流れて。
The adsorbent is heated, and the CO2 adsorbed on the adsorbent is desorbed from the adsorbent, and the adsorbent is regenerated. At the same time, the desorbed CO is recovered through the outlet pipe, and the CO2 is then recovered as CO.
Immediately after completing desorption of Oz, air containing Cot is supplied again to the high-temperature adsorbent, and the air is heated and at the same time moisture evaporates, drying and cooling the adsorbent, and at the same time adsorption is resumed and the heated air flows through the water supply pipe when it is discharged through the gas outlet pipe.

水蒸気発生器に向かう給水が熱交換器で上記ガス導出管
を経て排出される高温の空気により予熱されるので、熱
回収効率を向上できる。またガス導出管には、排出され
る気体の温度を低下させるために、排出気体冷却用ター
ラを設けるが、上記のように給水に熱を与えて温度の低
下した気体が同排出気体冷却用ターラに入るので、排出
気体冷却用クーラの容量を小さくできる効果がある。
Since the water supplied to the steam generator is preheated in the heat exchanger by the high temperature air discharged through the gas outlet pipe, heat recovery efficiency can be improved. In addition, the gas outlet pipe is equipped with an exhaust gas cooling tara in order to lower the temperature of the exhausted gas, but as mentioned above, the gas whose temperature has been lowered by applying heat to the water supply is passed through the exhaust gas cooling tartar. This has the effect of reducing the capacity of the exhaust gas cooling cooler.

以上本発明を実施例により説明したが2本発明はこのよ
うな実施例だけに限定されるものでなく。
Although the present invention has been described above with reference to Examples, the present invention is not limited to these Examples.

本発明の精神を逸脱しない範囲内で種々の設計の改変を
施し得るものである。例えば温度調節装置は、気体の入
口温度を調節できるものであれば。
Various design changes may be made without departing from the spirit of the invention. For example, the temperature control device can adjust the inlet temperature of the gas.

いかなるものでもよい。また水蒸気は、製造容易だし、
環境汚染がなくて、置換ガスとして有利である。また置
換ガス導入管、ガス導出管、CO□導出管は、吸着槽に
直接設ける必要はなく、  CO2導出管をガス導出管
から分岐して設けるなどしてもよい。またC02回収タ
ンクをCO□導出管に設ければ、CO2導出管がCO□
回収装置になる。またCO□回収タンクを設けずにCo
2を系外へ直接放出してもよい。
It can be anything. Also, water vapor is easy to produce,
It does not cause environmental pollution and is advantageous as a replacement gas. Further, the replacement gas inlet pipe, the gas outlet pipe, and the CO□ outlet pipe do not need to be provided directly in the adsorption tank, and the CO2 outlet pipe may be provided as a branch from the gas outlet pipe. Also, if a CO2 recovery tank is installed in the CO□ outlet pipe, the CO2 outlet pipe will become CO□
It becomes a collection device. Also, CO□ can be collected without installing a recovery tank.
2 may be directly released to the outside of the system.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明に係わるCO,除去装置の一実施例を示
す系統図、第2図はその作用説明図、第3図は吸着後の
脱着開始時からの処理空気の排出温度を示す説明図、第
4図は熱交換器の作用説明図である。 (1)(2) −−・吸着槽、(la)(lb)  −
−−吸着剤。 (11)〜(18)・・・開閉弁、 (19)  ・・
・ガス導入管、 (20)・・・ガス導出管、 (22
)・・・CO,導出管、 (23)  ・・・水蒸気発
生器、 (28)・・・熱交換器。 復代理人弁理士岡本重文外2名 第3図 路 %4図
Fig. 1 is a system diagram showing an embodiment of the CO removal device according to the present invention, Fig. 2 is an explanatory diagram of its operation, and Fig. 3 is an explanation showing the exhaust temperature of treated air from the start of desorption after adsorption. FIG. 4 is an explanatory diagram of the operation of the heat exchanger. (1) (2) --- Adsorption tank, (la) (lb) -
--Adsorbent. (11) to (18)...on/off valve, (19)...
・Gas inlet pipe, (20)...Gas outlet pipe, (22
)...CO, outlet pipe, (23)...steam generator, (28)...heat exchanger. Sub-Agent Patent Attorney Shigemon Okamoto (2 persons) Figure 3 % 4 Figure

Claims (1)

【特許請求の範囲】[Claims] CO_2を含有する気体を導くガス導入管と、同ガス導
入管により供給された気体中からCO_2を捕獲する吸
着剤を内部に充填した吸着槽と、CO_2から分離した
気体を同吸着槽内から導出するガス導出管と、気体から
分離したCO_2を同吸着槽内から導出するCO_2導
出管と、水蒸気を同吸着槽内へ供給する水蒸気発生器と
、上記各導出管と上記水蒸気発生器から上記吸着槽への
水蒸気流通経路とに設けた開閉弁と、前記水蒸気発生器
へ供給される給水を前記ガス導出管からの気体により予
熱する熱交換器とを具えていることを特徴としたCO_
2除去装置。
A gas introduction pipe that introduces gas containing CO_2, an adsorption tank filled with an adsorbent that captures CO_2 from the gas supplied by the gas introduction pipe, and a gas separated from CO_2 that is led out from within the adsorption tank. a CO_2 outlet pipe that leads out CO_2 separated from the gas from the adsorption tank; a steam generator that supplies water vapor into the adsorption tank; CO_, characterized by comprising an on-off valve provided in a steam flow path to the tank, and a heat exchanger that preheats the water supplied to the steam generator with gas from the gas outlet pipe.
2 removal device.
JP60093599A 1985-05-02 1985-05-02 Apparatus for removing co2 Granted JPS61254221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60093599A JPS61254221A (en) 1985-05-02 1985-05-02 Apparatus for removing co2

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60093599A JPS61254221A (en) 1985-05-02 1985-05-02 Apparatus for removing co2

Publications (2)

Publication Number Publication Date
JPS61254221A true JPS61254221A (en) 1986-11-12
JPH0568290B2 JPH0568290B2 (en) 1993-09-28

Family

ID=14086779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60093599A Granted JPS61254221A (en) 1985-05-02 1985-05-02 Apparatus for removing co2

Country Status (1)

Country Link
JP (1) JPS61254221A (en)

Cited By (17)

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Publication number Priority date Publication date Assignee Title
JPS6359339A (en) * 1986-08-29 1988-03-15 Sumitomo Heavy Ind Ltd Heat recovery method in carbon dioxide removing apparatus
JPS6369527A (en) * 1986-09-10 1988-03-29 Sumitomo Heavy Ind Ltd Waste heat recovering method in carbon dioxide removing method by ion exchange resin
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JP2009502483A (en) * 2005-07-28 2009-01-29 グローバル リサーチ テクノロジーズ,エルエルシー Carbon dioxide removal from the air
JP2010069398A (en) * 2008-09-17 2010-04-02 Ngk Insulators Ltd Co2 separating/recovering method
WO2012164856A1 (en) * 2011-05-31 2012-12-06 川崎重工業株式会社 Co2 recovery method and apparatus
JP2014504695A (en) * 2011-01-20 2014-02-24 サウジ アラビアン オイル カンパニー In-vehicle recovery and storage of CO2 derived from automobile exhaust gas
JP2014509360A (en) * 2011-01-20 2014-04-17 サウジ アラビアン オイル カンパニー Reversible solid adsorption method and system using waste heat for in-vehicle capture and storage of CO2
US8999279B2 (en) 2008-06-04 2015-04-07 Carbon Sink, Inc. Laminar flow air collector with solid sorbent materials for capturing ambient CO2
JP2015515925A (en) * 2012-05-04 2015-06-04 ピーター・アイゼンベルガー System and method for capturing and sequestering carbon dioxide
US9205372B2 (en) 2006-03-08 2015-12-08 Carbon Sink, Inc. Air collector with functionalized ion exchange membrane for capturing ambient CO2
US9266051B2 (en) 2005-07-28 2016-02-23 Carbon Sink, Inc. Removal of carbon dioxide from air
US9266052B2 (en) 2006-10-02 2016-02-23 Carbon Sink, Inc. Method and apparatus for extracting carbon dioxide from air
US9527747B2 (en) 2008-02-19 2016-12-27 Carbon Sink, Inc. Extraction and sequestration of carbon dioxide
US9616375B2 (en) 2007-04-17 2017-04-11 Carbon Sink, Inc. Capture of carbon dioxide (CO2) from air
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6359339A (en) * 1986-08-29 1988-03-15 Sumitomo Heavy Ind Ltd Heat recovery method in carbon dioxide removing apparatus
JPS6369527A (en) * 1986-09-10 1988-03-29 Sumitomo Heavy Ind Ltd Waste heat recovering method in carbon dioxide removing method by ion exchange resin
JPH04108568U (en) * 1991-02-25 1992-09-18 サンデン株式会社 oxygen enrichment device
JP2009502483A (en) * 2005-07-28 2009-01-29 グローバル リサーチ テクノロジーズ,エルエルシー Carbon dioxide removal from the air
US10010829B2 (en) 2005-07-28 2018-07-03 Carbon Sink, Inc. Removal of carbon dioxide from air
US9266051B2 (en) 2005-07-28 2016-02-23 Carbon Sink, Inc. Removal of carbon dioxide from air
US9205372B2 (en) 2006-03-08 2015-12-08 Carbon Sink, Inc. Air collector with functionalized ion exchange membrane for capturing ambient CO2
US10150112B2 (en) 2006-03-08 2018-12-11 Carbon Sink, Inc. Air collector with functionalized ion exchange membrane for capturing ambient CO2
US9266052B2 (en) 2006-10-02 2016-02-23 Carbon Sink, Inc. Method and apparatus for extracting carbon dioxide from air
US9861933B2 (en) 2006-10-02 2018-01-09 Carbon Sink, Inc. Method and apparatus for extracting carbon dioxide from air
US9616375B2 (en) 2007-04-17 2017-04-11 Carbon Sink, Inc. Capture of carbon dioxide (CO2) from air
US9527747B2 (en) 2008-02-19 2016-12-27 Carbon Sink, Inc. Extraction and sequestration of carbon dioxide
US8999279B2 (en) 2008-06-04 2015-04-07 Carbon Sink, Inc. Laminar flow air collector with solid sorbent materials for capturing ambient CO2
JP2010069398A (en) * 2008-09-17 2010-04-02 Ngk Insulators Ltd Co2 separating/recovering method
JP2014509360A (en) * 2011-01-20 2014-04-17 サウジ アラビアン オイル カンパニー Reversible solid adsorption method and system using waste heat for in-vehicle capture and storage of CO2
JP2014504695A (en) * 2011-01-20 2014-02-24 サウジ アラビアン オイル カンパニー In-vehicle recovery and storage of CO2 derived from automobile exhaust gas
JP2012250142A (en) * 2011-05-31 2012-12-20 Kawasaki Heavy Ind Ltd Co2 recovery method and apparatus
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US8951490B2 (en) 2011-05-31 2015-02-10 Kawaski Jukogyo Kabushiki Kaisha CO2 recovery method and apparatus
CN103501876A (en) * 2011-05-31 2014-01-08 川崎重工业株式会社 CO2 recovery method and apparatus
WO2012164856A1 (en) * 2011-05-31 2012-12-06 川崎重工業株式会社 Co2 recovery method and apparatus
JP2015515925A (en) * 2012-05-04 2015-06-04 ピーター・アイゼンベルガー System and method for capturing and sequestering carbon dioxide
US11737398B2 (en) 2018-02-16 2023-08-29 Carbon Sink, Inc. Fluidized bed extractors for capture of CO2 from ambient air
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