JP3110114B2 - CO2 recovery power plant - Google Patents

CO2 recovery power plant

Info

Publication number
JP3110114B2
JP3110114B2 JP03313483A JP31348391A JP3110114B2 JP 3110114 B2 JP3110114 B2 JP 3110114B2 JP 03313483 A JP03313483 A JP 03313483A JP 31348391 A JP31348391 A JP 31348391A JP 3110114 B2 JP3110114 B2 JP 3110114B2
Authority
JP
Japan
Prior art keywords
steam
combustor
recovery
power plant
turbine
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.)
Expired - Fee Related
Application number
JP03313483A
Other languages
Japanese (ja)
Other versions
JPH05133242A (en
Inventor
丙植 朴
胖 鈴木
正 辻
康正 小川
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 JP03313483A priority Critical patent/JP3110114B2/en
Publication of JPH05133242A publication Critical patent/JPH05133242A/en
Application granted granted Critical
Publication of JP3110114B2 publication Critical patent/JP3110114B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

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  • Engine Equipment That Uses Special Cycles (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、発電プラントにおい
て、特に廃熱を有効に利用し、二酸化炭素の分離除去の
改善を図った廃熱利用のCO2回収発電プラントに関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power generation plant, and more particularly to a CO 2 recovery power generation plant utilizing waste heat, which effectively utilizes waste heat to improve the separation and removal of carbon dioxide.

【0002】[0002]

【従来の技術】図2は、CO2回収を目的とした従来の
発電プラントの系統を示す。図2において、1は燃料供
給装置、2はO2製造装置、3は燃焼器、4はタービ
ン、5は発電機、6は排熱回収ボイラ、7は復水器、8
は水分分離装置、9は復水ポンプ、10はCO2回収装
置であり、これらの関連するもの同志はそれぞれ管路1
1〜19で接続されてサイクルを構成している。
BACKGROUND OF THE INVENTION Figure 2 shows a system of a conventional power plant for the purpose of a CO 2 recovery. 2, 1 is a fuel supply device, 2 is an O 2 production device, 3 is a combustor, 4 is a turbine, 5 is a generator, 6 is a waste heat recovery boiler, 7 is a condenser, 8
Is a water separation unit, 9 is a condensate pump, 10 is a CO 2 recovery unit, and their related ones are each connected to line 1
1 to 19 are connected to form a cycle.

【0003】以上述べた構成において、燃料は燃料供給
装置1から管路11を通して燃焼器3に供給され、この
燃焼器3に管路12を通してO2製造装置2から供給さ
れた酸素の存在下において燃焼される。この燃焼により
発生した燃焼ガスは、燃焼器3から管路13を通してタ
ービン4に送られ、タービン4を駆動し、次いで、発電
機5を駆動する。そして、タービン4からの排気ガスは
管路14を通して排熱回収ボイラ6に送られ、この排熱
回収ボイラ6内において、排気ガスと復水器7からの凝
縮水との間で熱交換作用が行われる。
In the configuration described above, fuel is supplied from the fuel supply device 1 to the combustor 3 through the line 11, and is supplied to the combustor 3 in the presence of oxygen supplied from the O 2 producing device 2 through the line 12. Burned. The combustion gas generated by this combustion is sent from the combustor 3 to the turbine 4 through the pipe 13 to drive the turbine 4 and then drive the generator 5. Then, the exhaust gas from the turbine 4 is sent to the exhaust heat recovery boiler 6 through the pipe 14, and a heat exchange action between the exhaust gas and the condensed water from the condenser 7 in the exhaust heat recovery boiler 6. Done.

【0004】排熱回収ボイラ6からの排気ガスは主に水
分及び二酸化炭素を含み、管路15を通して復水器7に
送られる。そして、この復水器7において、排気ガス中
の水分は凝縮され、凝縮水となる。凝縮水は管路16を
通して水分分離装置8に送られ、主に二酸化炭素から成
るガス要素から分離される。凝縮水は、次いで、復水ポ
ンプ9により管路17を通して排熱回収ボイラ6に送ら
れる。一方、二酸化炭素は、管路18を通してCO2
収装置10に送られて回収される。また、排熱回収ボイ
ラ6中の凝縮水は加熱されて過熱蒸気となり、タービン
4の作動流体として燃焼器3に管路19を通して供給さ
れる。
The exhaust gas from the heat recovery steam generator 6 mainly contains water and carbon dioxide, and is sent to a condenser 7 through a pipe 15. Then, in the condenser 7, the water in the exhaust gas is condensed and becomes condensed water. The condensed water is sent via line 16 to the water separator 8 where it is separated from the gaseous components which mainly consist of carbon dioxide. The condensed water is then sent to the exhaust heat recovery boiler 6 through the conduit 17 by the condensate pump 9. On the other hand, the carbon dioxide is sent to the CO 2 recovery device 10 through the pipe 18 and collected. The condensed water in the exhaust heat recovery boiler 6 is heated to become superheated steam, and is supplied to the combustor 3 as a working fluid of the turbine 4 through a pipe 19.

【0005】[0005]

【発明が解決しようとする課題】以上述べた従来のCO
2回収発電プラントは、しかし、次のような問題点があ
った。
SUMMARY OF THE INVENTION The conventional CO described above
However, the two recovery power plants have the following problems.

【0006】燃焼器3へ供給される蒸気は、燃焼器3で
燃料を燃焼し、タービン4を駆動した後の排気ガスの熱
により発生させたものである。即ち、サイクル内での生
成蒸気であり、サイクル外の廃熱例えば清掃工場などか
ら得られる廃熱(工場廃熱)を有効に利用したものでな
い。
[0006] The steam supplied to the combustor 3 is generated by burning fuel in the combustor 3 and driving heat of the exhaust gas after driving the turbine 4. That is, it is steam generated in the cycle, and does not effectively utilize waste heat outside the cycle, for example, waste heat obtained from a cleaning plant (factory waste heat).

【0007】また、燃焼器3へ供給される蒸気が上述の
如きサイクル内での生成蒸気であるので、プラント起動
時は蒸気を確保できず、負荷によって蒸気温度が変化す
るため燃焼器3での燃焼温度制御に問題がある。
Further, since the steam supplied to the combustor 3 is the steam generated in the above-described cycle, the steam cannot be secured at the time of starting the plant, and the steam temperature changes depending on the load. There is a problem with combustion temperature control.

【0008】更に、排熱回収ボイラ6で生成した蒸気
は、高圧・高温であるため、燃焼器3へこの蒸気を使用
することはプラントの運転効率上好ましくない。
Further, since the steam generated by the exhaust heat recovery boiler 6 has a high pressure and a high temperature, it is not preferable to use the steam for the combustor 3 in terms of the operation efficiency of the plant.

【0009】最後に、二酸化炭素から成るガス要素は、
CO2回収装置10へ回収されるのみで、その中に含有
されている余剰酸素の回収は考慮されていない。
Finally, the gas component consisting of carbon dioxide is:
Only the CO 2 is recovered by the CO 2 recovery apparatus 10, and the recovery of the excess oxygen contained therein is not considered.

【0010】本発明は、このような従来技術の課題を解
決するためになされたもので、特に廃熱を有効に利用
し、二酸化炭素の分離除去の改善を図った廃熱利用のC
2回収発電プラントを提供することを目的とする。
The present invention has been made in order to solve such problems of the prior art. In particular, the present invention has been made to improve the separation and removal of carbon dioxide by effectively utilizing waste heat.
An object is to provide an O 2 recovery power generation plant.

【0011】[0011]

【課題を解決するための手段】上記の課題を解決するた
めに、本発明に係るCO2回収発電プラントは、廃熱等
を利用して蒸気を製造する蒸気製造装置と、酸素を製造
するO2製造装置と、前記蒸気製造装置からの蒸気とO2
製造装置からの酸素と燃料を混合燃焼させる燃焼器と、
該燃焼器からの高温ガスが供給されて回転するタービン
と、該タービンからの排気ガスが供給される排熱回収ボ
イラと、該排熱回収ボイラからの排気ガスを凝縮して真
空状態で水と二酸化炭素に分離する凝縮器と、該凝縮器
からの二酸化炭素を回収するCO2回収装置と、前記凝
縮器からの凝縮水を加圧する低圧給水ポンプと、該低圧
給水ポンプより供給された水をさらに加圧し、前記蒸気
製造装置へ戻す高圧給水ポンプとを具備する。
In order to solve the above-mentioned problems, a CO 2 recovery and power generation plant according to the present invention comprises a steam production apparatus for producing steam using waste heat and the like, and an O 2 production apparatus for producing oxygen. 2 Production equipment, steam and O 2 from the steam production equipment
A combustor for mixing and burning oxygen and fuel from the manufacturing apparatus,
A turbine that is supplied with high-temperature gas from the combustor and rotates; an exhaust heat recovery boiler that is supplied with exhaust gas from the turbine; and an exhaust gas from the exhaust heat recovery boiler that condenses exhaust water with water in a vacuum state. A condenser for separating carbon dioxide, a CO 2 recovery device for recovering carbon dioxide from the condenser, a low-pressure water pump for pressurizing condensed water from the condenser, and water supplied from the low-pressure water pump. And a high-pressure water pump for further pressurizing and returning to the steam production apparatus.

【0012】[0012]

【作用】上記の手段によれば、廃熱等を利用して蒸気生
成を行い、空気ではなく酸素雰囲気下でこの蒸気は燃料
とともに燃焼器内で燃焼加熱され、タービンへ供給され
る。この燃焼ガスはタービンの作動流体として作用し、
タービンを駆動する。そして、タービンからの排気ガス
は排熱回収ボイラで熱交換作用を行う。この排熱回収ボ
イラ出口の冷却された排気ガスは凝縮器に送られ、排気
ガスは主に水分および二酸化炭素であり、この凝縮器で
冷却および真空状態にすることにより、水分の凝縮、二
酸化炭素の分離を行う。この分離された二酸化炭素は、
CO2回収装置で液化或いは固化される。一方、凝縮水
は、低圧および高圧供給ポンプにより蒸気製造装置に戻
され、回収される。
According to the above-mentioned means, steam is generated by utilizing waste heat or the like, and this steam is combusted and heated in a combustor together with fuel in an oxygen atmosphere instead of air, and is supplied to a turbine. This combustion gas acts as a working fluid for the turbine,
Drive the turbine. The exhaust gas from the turbine performs a heat exchange action in the exhaust heat recovery boiler. The cooled exhaust gas at the outlet of the exhaust heat recovery boiler is sent to a condenser, and the exhaust gas is mainly moisture and carbon dioxide. Separation of This separated carbon dioxide is
It is liquefied or solidified by a CO 2 recovery device. On the other hand, the condensed water is returned to the steam production device by the low-pressure and high-pressure supply pumps and collected.

【0013】[0013]

【実施例】以下、図1を参照して本発明の好適な一実施
例について詳細に説明する。なお、図1において、図2
に示したものと同一の部分には同一の符号を使用する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below in detail with reference to FIG. In FIG. 1, FIG.
The same reference numerals are used for the same parts as shown in FIG.

【0014】本実施例によれば、図1に示すように、廃
熱等を利用して蒸気を製造する蒸気製造装置21、この
蒸気製造装置21からの蒸気をタービン4からの排気ガ
スで加熱する再生器22、排熱回収ボイラ6からの蒸気
で駆動される蒸気タービン23、排熱回収ボイラ6から
の排気ガスを冷却水で凝縮して真空状態で水と二酸化炭
素に分離する凝縮器24、この凝縮器24からの凝縮水
を加圧する低圧給水ポンプ25、この低圧給水ポンプ2
5より供給された水をさらに加圧し、蒸気製造装置21
へ戻す高圧給水ポンプ26、CO2回収装置10で加圧
・冷却により分離した余剰酸素をO2製造装置2の出口
に供給して回収する管路27、及び排熱回収ボイラ6の
発生蒸気の一部を、廃熱等の変動時における燃焼器3の
圧力変動を小さくするために、蒸気製造装置21の出口
に供給する管路28などが新たに設けられている。
According to the present embodiment, as shown in FIG. 1, a steam production apparatus 21 for producing steam using waste heat or the like, and the steam from this steam production apparatus 21 is heated by exhaust gas from a turbine 4. , A steam turbine 23 driven by steam from the exhaust heat recovery boiler 6, and a condenser 24 for condensing exhaust gas from the exhaust heat recovery boiler 6 with cooling water and separating it into water and carbon dioxide in a vacuum state , A low-pressure feed pump 25 for pressurizing the condensed water from the condenser 24,
5 is further pressurized, and the steam
High-pressure feed water pump 26, pipe 27 for supplying and recovering excess oxygen separated by pressurization and cooling in CO 2 recovery device 10 to the outlet of O 2 production device 2, and steam generated in exhaust heat recovery boiler 6. In order to reduce pressure fluctuation of the combustor 3 at the time of fluctuation of waste heat or the like, a pipe 28 for supplying the outlet of the steam production device 21 and the like are newly provided.

【0015】しかして、清掃工場などの廃熱を利用して
蒸気製造装置21で蒸気が生成され、この蒸気が管路3
1を通り、再生器22およびそのバイパス管路32で一
定温度に制御され、燃焼器3に供給される。一方、燃料
は燃料供給装置1より管路11を通して、また酸素はO
2製造装置2から管路12を通してそれぞれ燃焼器3へ
供給される。これにより、燃焼器3では、空気ではなく
酸素雰囲気下で蒸気が燃料とともに燃焼加熱され、その
高温の燃焼ガス(CO2,O2)は管路13を通してター
ビン4に送られ、膨張して発電機5の動力源となる。
[0015] Thus, steam is generated in the steam producing apparatus 21 using waste heat from a waste cleaning plant or the like.
1, the regenerator 22 and its bypass line 32 control the temperature to be constant, and the regenerator 22 is supplied to the combustor 3. On the other hand, the fuel passes through the line 11 from the fuel supply device 1 and the oxygen
(2) The gas is supplied from the manufacturing apparatus 2 to the combustor 3 through the pipe 12. As a result, in the combustor 3, the steam is combusted and heated together with the fuel in an oxygen atmosphere instead of air, and the high-temperature combustion gas (CO 2 , O 2 ) is sent to the turbine 4 through the pipe 13 and expanded to generate power. The power source of the machine 5.

【0016】このタービン4の排気ガスは、管路33を
通して再生器22へ送られ、蒸気製造装置21で発生し
た蒸気を加熱し、次いで管路34を通して排熱回収ボイ
ラ6に送られて蒸気製造に熱利用され、その後管路35
を通して凝縮器24に送られて冷却され、凝縮水と二酸
化炭素に分離される。この分離された二酸化炭素は、管
路36を通してCO2回収装置10に送られ、液化或い
は固化される。そして、このCO2回収装置10で加圧
・冷却により余剰酸素は分離され、管路27を通してO
2製造装置2の出口の管路12に供給されて回収され、
燃焼に再利用される。
The exhaust gas of the turbine 4 is sent to a regenerator 22 through a pipe 33 to heat the steam generated in the steam producing device 21, and then sent to a waste heat recovery boiler 6 through a pipe 34 to produce steam. Heat is used for
And then cooled to a condenser 24 to be separated into condensed water and carbon dioxide. The separated carbon dioxide is sent to the CO 2 recovery device 10 through the pipe 36 and is liquefied or solidified. Excess oxygen is separated by pressurization and cooling in the CO 2 recovery device 10,
(2) It is supplied to the pipe 12 at the outlet of the manufacturing apparatus 2 and collected,
Reused for combustion.

【0017】一方、凝縮器24で凝縮された水は、低圧
給水ポンプ25で加圧され、管路37を通して送られて
凝縮器24で熱回収を行い、それから管路38を通して
高圧給水ポンプ26へ導かれる。この高圧給水ポンプ2
6で再加圧された水は管路39を通して蒸気製造装置2
1へ送られ回収されるとともに、その一部は管路40に
より管路41に導びかれ、排熱回収ボイラ6へ供給され
る。そして、この排熱回収ボイラ6で得られた蒸気は、
管路42を通して蒸気タービン23に送られ、膨張して
発電機5の動力源となる。
On the other hand, the water condensed in the condenser 24 is pressurized by the low-pressure water supply pump 25, sent through a pipe 37 to recover heat in the condenser 24, and then to a high-pressure water pump 26 through a pipe 38. Be guided. This high pressure feed pump 2
The water re-pressurized in 6 passes through line 39 to the steam production device 2
While being sent to 1 and collected, a part thereof is guided to a pipe 41 by a pipe 40 and supplied to the exhaust heat recovery boiler 6. And the steam obtained by this waste heat recovery boiler 6 is
The steam is sent to the steam turbine 23 through the pipe 42 and expanded to serve as a power source of the generator 5.

【0018】蒸気タービン23の排熱蒸気は復水器7で
凝縮し、復水ポンプ9で加圧され、管路41を通して排
熱回収ボイラ6へ戻される。そして、排熱回収ボイラ6
で得られる低圧蒸気の一部は、管路28を通して蒸気製
造装置21のバックアップとして管路31に供給され、
これにより廃熱変動時に燃焼器3の圧力変度を小さくす
るべく必要蒸気量が供給される。
The exhaust heat steam of the steam turbine 23 is condensed in the condenser 7, pressurized by the condensate pump 9, and returned to the exhaust heat recovery boiler 6 through the pipe 41. And the waste heat recovery boiler 6
A part of the low-pressure steam obtained in is supplied to the pipe 31 as a backup of the steam production apparatus 21 through the pipe 28,
Thereby, the required steam amount is supplied to reduce the pressure variation of the combustor 3 when the waste heat fluctuates.

【0019】なお、図1に示した実施例において、再生
器22は、タービン4へ送られる蒸気製造装置21の生
成蒸気の温度変化がない場合等には特に設けなくても良
い。また、蒸気タービン23は、廃熱等を利用して製造
された蒸気の蒸気条件が蒸気タービン導入条件に合わな
い場合或いはシステムの構成を簡単にしたい場合等には
特に設けなくても良い。
In the embodiment shown in FIG. 1, the regenerator 22 may not be provided particularly when there is no change in the temperature of the steam generated by the steam producing device 21 sent to the turbine 4. Further, the steam turbine 23 may not be provided particularly when the steam conditions of the steam produced by utilizing the waste heat or the like do not meet the steam turbine introduction conditions, or when it is desired to simplify the system configuration.

【0020】[0020]

【発明の効果】清掃工場など多くの工場では工場廃熱が
得られる場合でも、工場廃熱を利用して製造できるの
は、300℃程度の蒸気しか得られず、この蒸気で蒸気
タービンを駆動するシステムの場合、15%前後の低い
発電効率しか得られないが、本発明によれば、工場廃熱
を利用して製造された蒸気をタービンの作動流体として
用いることができるので、圧縮効率の悪い気体(空気又
は酸素)の圧縮過程が不要となり、50%程度の高い発
電効率をもった発電システムが構成できる。
In many factories such as waste cleaning factories, even when factory waste heat can be obtained, only steam at about 300 ° C. can be produced using factory waste heat, and this steam drives a steam turbine. Although a low power generation efficiency of about 15% can be obtained in the case of a system that performs the above, according to the present invention, the steam produced using the industrial waste heat can be used as the working fluid of the turbine. The compression process of bad gas (air or oxygen) is not required, and a power generation system having a high power generation efficiency of about 50% can be configured.

【0021】一方、空気でなく酸素雰囲気で燃焼される
ので、排気ガス中には殆ど窒素酸化ガスを含むことがな
く、排気ガス中に含まれる二酸化炭素および水分は凝縮
器で分離され、二酸化炭素はCO2回収装置で容易に回
収することができる。したがって、大気汚染物質である
酸化窒素・二酸化炭素等の大気放出することなく、高効
率の発電が行える。
On the other hand, since the fuel is burned in an oxygen atmosphere instead of air, the exhaust gas hardly contains a nitrogen oxidizing gas, and carbon dioxide and moisture contained in the exhaust gas are separated by a condenser. Can be easily recovered by a CO 2 recovery device. Therefore, high-efficiency power generation can be performed without releasing atmospheric pollutants such as nitrogen oxide and carbon dioxide to the atmosphere.

【0022】また、好適には、CO2回収装置で加圧・
冷却により余剰酸素を分離してO2製造装置に送ること
により、有効に回収することができる。
[0022] Preferably, pressure and a CO 2 recovery device
Excess oxygen is separated by cooling and sent to an O 2 production apparatus, so that it can be effectively recovered.

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

【図1】本発明の一実施例に係るCO2回収発電プラン
トを示す系統図である。
FIG. 1 is a system diagram showing a CO 2 recovery power generation plant according to one embodiment of the present invention.

【図2】従来のCO2回収発電プラントを示す系統図で
ある。
FIG. 2 is a system diagram showing a conventional CO 2 capture power generation plant.

【符号の説明】[Explanation of symbols]

1 燃料供給装置 2 O2製造装置 3 燃焼器 4 タービン 5 発電機 6 排熱回収ボイラ 7 復水器 9 復水ポンプ 10 CO2回収装置 21 蒸気製造装置 22 再生器 23 蒸気タービン 24 凝縮器 25 低圧給水ポンプ 26 高圧給水ポンプFirst fuel supply apparatus 2 O 2 production apparatus 3 the combustor 4 turbine 5 generator 6 exhaust heat recovery boiler 7 condenser 9 condensate pump 10 CO 2 recovery apparatus 21 steam producing device 22 regenerator 23 steam turbine 24 condenser 25 low Water supply pump 26 High pressure water supply pump

───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 胖 大阪府箕面市桜2−4−5 (72)発明者 辻 正 兵庫県高砂市荒井町新浜二丁目1番1号 三菱重工業株式会社 高砂製作所内 (72)発明者 小川 康正 兵庫県高砂市荒井町新浜二丁目1番1号 三菱重工業株式会社 高砂製作所内 (56)参考文献 特開 平3−145523(JP,A) 特開 昭62−75028(JP,A) 特開 昭59−190409(JP,A) (58)調査した分野(Int.Cl.7,DB名) F02C 6/18 F01K 25/00 F02C 3/22 F02C 3/30 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takeshi Suzuki 2-4-5 Sakura, Minoh-shi, Osaka (72) Inventor Tadashi Tadashi 2-1-1, Niihama, Arai-machi, Takasago-shi, Hyogo Mitsubishi Heavy Industries, Ltd. Takasago Machinery Works (72) Inventor Yasumasa Ogawa 2-1-1, Shinhama, Arai-machi, Takasago City, Hyogo Prefecture Inside the Takasago Works, Mitsubishi Heavy Industries, Ltd. (56) References JP-A-3-145523 (JP, A) JP-A-62-75028 (JP) , A) JP-A-59-190409 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) F02C 6/18 F01K 25/00 F02C 3/22 F02C 3/30

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】廃熱等を利用して蒸気を製造する蒸気製造
装置と、酸素を製造するO2製造装置と、前記蒸気製造
装置からの蒸気とO2製造装置からの酸素と燃料を混合
燃焼させる燃焼器と、該燃焼器からの高温ガスが供給さ
れて回転するタービンと、該タービンからの排気ガスが
供給される排熱回収ボイラと、該排熱回収ボイラからの
排気ガスを凝縮して真空状態で水と二酸化炭素に分離す
る凝縮器と、該凝縮器からの二酸化炭素を回収するCO
2回収装置と、前記凝縮器からの凝縮水を加圧する低圧
給水ポンプと、該低圧給水ポンプより供給された水をさ
らに加圧し、前記蒸気製造装置へ戻す高圧給水ポンプと
を具備することを特徴とするCO2回収発電プラント。
1. A steam production apparatus for producing steam using waste heat or the like, an O 2 production apparatus for producing oxygen, and a mixture of steam from the steam production apparatus, oxygen and oxygen from the O 2 production apparatus. A combustor for combustion, a turbine that is supplied with high-temperature gas from the combustor and rotates, an exhaust heat recovery boiler that is supplied with exhaust gas from the turbine, and condenses exhaust gas from the exhaust heat recovery boiler. Condenser for separating water and carbon dioxide in a vacuum state, and CO for recovering carbon dioxide from the condenser
(2) a recovery device, a low-pressure water pump for pressurizing condensed water from the condenser, and a high-pressure water pump for further pressurizing water supplied from the low-pressure water pump and returning the water to the steam production device. CO 2 capture power plant.
【請求項2】請求項1記載のCO2回収発電プラントに
おいて、前記CO2回収装置で加圧・冷却により分離し
た余剰酸素を前記O2製造装置の出口に供給して回収す
る管路を具備するCO2回収発電プラント。
2. The CO 2 recovery power plant according to claim 1, further comprising a pipeline for supplying excess oxygen separated by pressurization and cooling in the CO 2 recovery device to an outlet of the O 2 production device and recovering it. CO 2 capture power plant.
【請求項3】請求項1記載のCO2回収発電プラントに
おいて、前記排熱回収ボイラの発生蒸気の一部を、廃熱
等の変動時における前記燃焼器の圧力変動を小さくする
ために、前記蒸気製造装置の出口に供給する管路を具備
するCO2回収発電プラント。
3. The CO 2 recovery and power generation plant according to claim 1, wherein a part of the steam generated by the exhaust heat recovery boiler is used to reduce pressure fluctuation of the combustor at the time of fluctuation of waste heat or the like. A CO 2 capture power plant equipped with a pipeline for supplying to the outlet of a steam production device.
【請求項4】請求項1記載のCO2回収発電プラントに
おいて、再生器を具備し、前記タービンと前記排熱回収
ボイラとを接続する管路および前記蒸気製造装置と前記
燃焼器とを接続する管路の各一部を前記再生器内に組み
込み、前記燃焼器へ供給する蒸気の温度を一定にするよ
うにしたCO2回収発電プラント。
4. The CO 2 recovery power plant according to claim 1, further comprising a regenerator, a pipe connecting the turbine and the exhaust heat recovery boiler, and connecting the steam production device to the combustor. incorporate the portion of the conduit to the regenerator, CO 2 recovery power plant in which the temperature of the steam supplied to the combustor such that a constant.
JP03313483A 1991-11-01 1991-11-01 CO2 recovery power plant Expired - Fee Related JP3110114B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP03313483A JP3110114B2 (en) 1991-11-01 1991-11-01 CO2 recovery power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03313483A JP3110114B2 (en) 1991-11-01 1991-11-01 CO2 recovery power plant

Publications (2)

Publication Number Publication Date
JPH05133242A JPH05133242A (en) 1993-05-28
JP3110114B2 true JP3110114B2 (en) 2000-11-20

Family

ID=18041855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP03313483A Expired - Fee Related JP3110114B2 (en) 1991-11-01 1991-11-01 CO2 recovery power plant

Country Status (1)

Country Link
JP (1) JP3110114B2 (en)

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