CN201603511U - Coal-fired power plant flue gas carbon dioxide capture system - Google Patents

Coal-fired power plant flue gas carbon dioxide capture system Download PDF

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CN201603511U
CN201603511U CN 201020000778 CN201020000778U CN201603511U CN 201603511 U CN201603511 U CN 201603511U CN 201020000778 CN201020000778 CN 201020000778 CN 201020000778 U CN201020000778 U CN 201020000778U CN 201603511 U CN201603511 U CN 201603511U
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carbon dioxide
gas
regeneration
flue gas
fired power
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CN 201020000778
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Chinese (zh)
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丁小红
余宇
喻江涛
杜云贵
洪燕
蒙剑
隋建才
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中电投远达环保工程有限公司
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    • 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
    • Y02A50/20Air quality improvement or preservation
    • Y02A50/23Emission reduction or control
    • Y02A50/234Physical or chemical processes, e.g. absorption, adsorption or filtering, characterised by the type of pollutant
    • Y02A50/2342Carbon dioxide [CO2]
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage
    • Y02E20/32Direct CO2 mitigation
    • Y02E20/326Segregation from fumes, including use of reactants downstream from combustion or deep cooling
    • 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
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10General improvement of production processes causing greenhouse gases [GHG] emissions
    • Y02P20/14Reagents; Educts; Products
    • Y02P20/151Reduction of greenhouse gas [GHG] emissions
    • Y02P20/152CO2

Abstract

本实用新型公开了一种燃煤电厂烟气中二氧化碳捕集系统,包括吸收塔和再生塔,还包括再生气冷凝器、贫富液换热器、二氧化碳分离器和二氧化碳压缩机;本实用新型通过吸收塔和再生塔的配合布置,能够使燃煤电厂锅炉排出的大量二氧化碳气体得到捕集,减少了温室气体的排放,保护人类环境;同时还可以将通过将捕集的二氧化碳气体直接引入联合法制纯碱及氯化铵工艺流程,使二氧化碳气体能够及时得到利用,优化了整体生产工艺,降低了二氧化碳气体的损耗。 The present invention discloses a carbon dioxide capture system for flue gases of coal-fired power plants, comprising an absorption tower and the regeneration tower, further comprising a regeneration gas condenser, a wealth liquid heat exchanger, carbon dioxide and carbon dioxide separator compressor; present invention through the absorption column and the regeneration column fit arrangement, a large amount of carbon dioxide gas can be discharged from boilers fired power plant been trapped, reducing greenhouse gas emissions, protection of the human environment; also can be directly introduced into the joint by capturing the carbon dioxide gas Method ammonium chloride and soda ash process, the carbon dioxide gas is utilized in a timely fashion, to optimize the overall production process, reducing the loss of carbon dioxide gas.

Description

燃煤电厂烟气中二氧化碳捕集系统 Coal-fired power plant flue gas carbon dioxide capture system

技术领域 FIELD

[0001] 本实用新型涉及烟气净化及处理领域,特别涉及一种燃煤电厂烟气中二氧化碳捕集系统。 [0001] The present invention relates to the field of flue gas purification and processing, in particular, relates to one kind of coal fired power plant flue gas carbon dioxide capture system.

背景技术 Background technique

[0002] 二氧化碳排放量的急剧增长,由于温室效应,会带来气候、生态系统的剧烈变化以及饮用水的减少,同时还会造成海平面上升、陆地减少和平均气温上升等危害,而我国燃煤电厂的二氧化碳排放约占工业排放总量的一半左右,因此,控制燃煤电厂的二氧化碳排放, 已迫在眉睫。 [0002] rapid growth of carbon dioxide emissions, due to the greenhouse effect, climate will bring dramatic changes in ecosystems, and reducing drinking water, while also contributing to sea level rise, land and reducing the average temperature rise and other hazards, and our burning carbon dioxide emissions from coal power plants account for about half of the total industrial emissions, therefore, to control carbon dioxide emissions of coal-fired power plants, it is imminent.

[0003] 目前,分离和回收烟气中二氧化碳的方法主要有吸收分离、吸附分离、膜分离、低温分离、02/0)2燃烧分离等,其中吸收分离法与吸附分离法较为成熟,应用比较广泛。 [0003] Currently, a method of separating and recovering carbon dioxide in flue gas absorption main separation, adsorption separation, membrane separation, cryogenic separation, 02/0) 2 combustion separation, absorption separation process wherein the adsorptive separation is more mature and Comparison widely. 但由于目前还没有商业化的燃煤电厂烟气二氧化碳资源化利用技术,限制了燃煤电厂二氧化碳减排技术的推广应用。 But because there is no commercial coal fired power plant flue gas carbon dioxide utilization technologies, limiting carbon dioxide emissions reduction technology popularization and application of coal-fired power plants.

实用新型内容 SUMMARY

[0004] 有鉴于此,本实用新型提供了一种用于捕集燃煤电厂烟气中二氧化碳捕集系统, 该系统处理效率高,实施效果好,能够实现二氧化碳气体的捕集和处理一体化。 [0004] Accordingly, the present invention provides a flue gas capture the carbon dioxide capture system for a coal fired power plant, the system of high efficiency, good effects embodiment, it is possible to capture the carbon dioxide gas and process integration .

[0005] 本实用新型的目的是提供一种燃煤电厂烟气中二氧化碳捕集系统,燃煤电厂烟气中二氧化碳捕集系统,包括吸收塔和再生塔,所述二氧化碳捕集系统还包括再生气冷凝器、 贫富液换热器、二氧化碳分离器和二氧化碳压缩机; [0005] The object of the present invention to provide a coal fired power plant flue gas carbon dioxide capture system, fired power plant flue gas carbon capture system, including the absorption tower and the regeneration tower, the carbon dioxide capture system further includes a regeneration a condenser gas, rich or poor liquid heat exchanger, carbon dioxide and carbon dioxide separator compressor;

[0006] 燃煤电厂的烟气排出口通过引风机升压后与吸收塔的底部相连,烟气从下往上运动,与从吸收塔上部入塔的用于吸收二氧化碳的乙醇胺溶液形成逆流接触,脱除了二氧化碳的烟气从吸收塔的烟气排出口排出,所述吸收塔的底部设置富液排出口,所述富液排出口通过富液泵依次与再生气冷凝器、贫富液换热器和再生塔相连接,吸收了二氧化塔的富液通过富液泵加压进入再生气冷凝器后,经再生气加热后进入贫富液换热器与贫液换热, 再由再生塔顶部喷头喷淋后进入再生塔内部,所述再生塔的顶部出气口依次与再生气冷凝器和二氧化碳分离器相连接,所述二氧化塔分离器的气体排出口与二氧化碳压缩机相连接,所述二氧化碳压缩机的增压气体排出口与外部二氧化碳利用设备相连接。 [0006] The fired power plant flue gas outlet to the bottom of the absorption tower fan is connected boosted by introducing the flue gas from the bottom up motion, in contact with the upper portion of the absorption column into the column is formed from ethanolamine solution for absorbing carbon dioxide countercurrent , freed from carbon dioxide flue gas discharged from the absorption tower of the flue gas discharge port provided at the bottom of the absorption column rich liquid outlet, said liquid outlet by the rich-rich regeneration gas pump sequentially with a condenser, a liquid exchange wealth thermal regeneration tower and connected to the absorption column after dioxide rich liquid pressurizing pump through-rich regeneration gas enters the condenser, after heating the regeneration gas into the rich and the poor solution to the lean liquid heat exchanger, then by regeneration after the column top of the spray nozzle into the interior of the regeneration tower, the top of the regeneration column outlet regeneration gas in turn is connected to a condenser and a carbon dioxide separator, the gas outlet of the column with carbon dioxide compressor dioxide separator is connected, the pressurized carbon dioxide compressor and the gas exhaust outlet is connected to an external device using the carbon dioxide.

[0007] 进一步,所述吸收塔顶的顶部设置有洗涤段和除沫器,脱除了二氧化碳的净烟气在吸收塔上部洗涤并通过除沫器除掉溶液后排入大气; [0007] Further, the top of the absorber overhead is provided with a scrubbing section and a demister net flue gas freed of carbon dioxide in the upper portion of the absorption column was washed by addition and removal of the solution after the mist into the atmosphere;

[0008] 进一步,所述系统还包括洗涤液存贮槽和洗涤液泵,所述洗涤液存贮槽与吸收塔相连接,用于存储从吸收塔换出的洗涤水;所述洗涤液泵一端与洗涤液存贮槽相连接,另一端连接至吸收塔的洗涤段,用于将洗涤水存贮槽内的洗涤水输送至洗涤段; [0008] Further, the system further comprises a washing solution storage tank and the washing pump, the washing liquid storage tank connected to the absorption column, the wash water from the absorption column is swapped out memory for; the wash pump One end of the washing solution storage tank is connected to the other end connected to the washing section of the absorption column for the washing water fed to the water storage tank scrubber section;

[0009] 进一步,所述外部二氧化碳利用设备为采用联合法同时制纯碱及氯化铵的设备。 [0009] Further, the external apparatus employing carbon dioxide using a combined method of simultaneously molding apparatus soda ash and ammonium chloride.

[0010] 本实用新型的有益效果是: [0010] The beneficial effects of the present invention are:

[0011] 1.本实用新型通过吸收塔和再生塔的配合布置,能够使燃煤电厂锅炉排出的大量二氧化碳气体得到捕集,减少了温室气体的排放,保护人类环境;同时通过将捕集的二氧化碳气体直接引入联合法制纯碱及氯化铵工艺流程,使二氧化碳气体能够及时得到利用,优化了整体生产工艺,降低了二氧化碳气体的损耗; [0011] 1. By the present invention the absorption column and the regeneration column fitting arrangement enables a large amount of carbon dioxide gas discharged from a boiler fired power plant been trapped, reducing greenhouse gas emissions, to protect human environment; and trapped by Method of carbon dioxide gas is introduced directly into the joint and ammonium chloride soda process, the carbon dioxide gas is utilized in a timely fashion, to optimize the overall production process, reducing the loss of carbon dioxide gas;

[0012] 2.通过再生气冷凝器和贫富液换热器对富液在进入再生塔前进行两次加热,从而降低了系统的能源损耗,也有利于富液中二氧化碳的快速解吸; [0012] 2. The regeneration gas through a condenser and the heat exchanger on the liquid wealth rich solution twice before entering the regeneration column is heated, thereby reducing the energy consumption of the system, it is also conducive to the rapid desorption of carbon dioxide-enriched liquid;

[0013] 3.本实用新型的系统结构紧凑、分离效果好、流程设置合理、见效快,适合推广使用。 [0013] 3. The system of the present invention is compact, good separation, the process provided a reasonable, effective, and suitable for widely used.

[0014] 本实用新型的其他优点、目标和特征在某种程度上将在随后的说明书中进行阐述,并且在某种程度上,基于对下文的考察研究对本领域技术人员而言将是显而易见的,或者可以从本实用新型的实践中得到教导。 [0014] Other advantages of the present invention, objects and features will be to some extent set forth in the description which follows and, in part, based on a study of the following investigation to those skilled in the art will become apparent to , or may be learned from practice of the present invention. 本实用新型的目标和其他优点可以通过下面的说明书和权利要求书来实现和获得。 Objectives of the present invention and other advantages may be realized and obtained by the following description and the appended claims.

附图说明 BRIEF DESCRIPTION

[0015] 为了使本实用新型的目的、技术方案和优点更加清楚,下面将结合附图对本实用新型作进一步的详细描述,其中: [0015] For purposes of the present invention, technical solutions and advantages clearer, the following will be described in further detail in conjunction with the accompanying drawings of the present disclosure as, where:

[0016] 图1为本实用新型的捕集系统结构示意图; [0016] FIG. 1 is a schematic view of the new structure of the present utility capture system;

[0017] 图2为联合法制纯碱及氯化铵工艺流程示意图。 [0017] FIG. 2 is a combined schematic process flow diagram Method soda and ammonium chloride.

具体实施方式 detailed description

[0018] 以下将参照附图,对本实用新型的优选实施例进行详细的描述。 [0018] below with reference to the accompanying drawings, detailed description of embodiments of the present invention is preferred. 应当理解,优选实施例仅为了说明本实用新型,而不是为了限制本实用新型的保护范围。 It should be understood that the embodiments of the invention only, and not the protection scope of the invention is preferably intended to limit the present description.

[0019] 如图1所示,本实用新型的燃煤电厂烟气中二氧化碳捕集系统,包括吸收塔1和再生塔4、再生气冷凝器2、贫富液换热器3、二氧化碳分离器5和二氧化碳压缩机; [0019] As shown in FIG. 1, the present invention fired power plant flue gas carbon capture system, including an absorption tower and the regeneration tower 4, the regeneration gas condenser 2, rich and poor liquid heat exchanger 3, the carbon dioxide separator 5 and the carbon dioxide compressor;

[0020] 燃煤电厂的烟气排出口通过引风机升压后与吸收塔1的底部相连,烟气从下往上运动,与从吸收塔1上部入塔的用于吸收二氧化碳的乙醇胺溶液形成逆流接触,在吸收塔顶的顶部设置有洗涤段和除沫器,脱除了二氧化碳的净烟气在吸收塔上部洗涤并通过除沫器除掉溶液后排入大气。 Flue gas outlet [0020]-fired power plant by the induced draft fan and the booster is connected to a bottom of the absorber, the flue gas from the bottom up motion, and the upper portion of the column from the absorption tower for absorbing a carbon dioxide ethanolamine solution is formed countercurrently contacting, in the top absorbent overhead and scrubbing section is provided with a demister, the net flue gas freed of carbon dioxide in the wash in addition to the upper portion of the absorption column and the mist is removed by the solution into the atmosphere. 本系统还包括洗涤液存贮槽6和洗涤液泵7,洗涤液存贮槽6与吸收塔1相连接,用于存储从吸收塔1换出的洗涤水;洗涤液泵7 —端与洗涤液存贮槽相连接,另一端连接至吸收塔1的洗涤段,用于将洗涤水存贮槽6内的洗涤水输送至洗涤段。 The system further comprises a washing liquid storage tank 6 and the washing pump 7, the washing liquid storage tank 6 is connected to the absorption tower 1, the wash water from the absorption tower 1 is stored for a swap; washing pump 7 - end of the wash a liquid storage tank is connected to the other end is connected to the scrubbing section of absorption tower 1, for the washing water in the washing water storage tank 6 fed to the cleaning section.

[0021] 吸收塔1的底部设置富液排出口,富液排出口通过富液泵依次与再生气冷凝器2、 贫富液换热器3和再生塔4相连接,吸收了二氧化塔的富液通过富液泵加压进入再生气冷凝器2后,经再生气加热后进入贫富液换热器3与贫液换热,再由再生塔1顶部喷头喷淋后进入再生塔1内部,再生塔1的顶部出气口依次与再生气冷凝器2和二氧化碳分离器3相连接,二氧化塔分离器3的气体排出口与二氧化碳压缩机相连接,二氧化碳压缩机的增压气体排出口与外部二氧化碳利用设备相连接。 Bottom [0021] The absorption column 1 is provided rich liquid discharge port, rich liquid outlet through pump sequentially with rich regeneration gas condenser 2, the heat exchanger 3 and a liquid rich and poor regeneration tower 4 is connected to the absorption tower dioxide rich liquid by pump pressure-rich regeneration gas enters the condenser 2, after heating the regeneration gas enters the heat exchanger 3 and the liquid-rich and poor lean liquid heat exchanger, then the top of the head 1 into the interior of the spray regeneration column regeneration tower 1 , the top of the regeneration column an ​​outlet is connected to the 3 sequentially regeneration gas condenser 2 and the carbon dioxide separator, the separator column dioxide with carbon dioxide gas discharge port of the compressor 3 is connected to the discharge outlet of the pressurized gas and carbon dioxide compressor use of carbon dioxide external connected device.

[0022] 吸收部分的原理是采用液相溶液选择性地自烟气中脱除容易溶于吸收液的气体部分(即二氧化碳气体),烟气通过脱硫脱硝、除尘后,通过风机由吸收塔下方进入与从上而下的吸收液体在塔中做逆向接触,气体在处理完成后离开吸收塔,然后进入洗涤段,气体中携带的水分和吸收溶剂会从气体中移除并送回到吸收塔,离开吸收塔的气体排出到大气 [0022] The principle of a liquid phase portion of the absorbent solution is selectively removed from the flue gas is easily dissolved in the absorption liquid portion (i.e., carbon dioxide), by desulfurization and denitrification of flue gas, the dust, the fan downward from the absorption into the absorbent liquid from the top down do countercurrently contacted in a column, the gas leaving the absorption column after the process is completed, and then into the washing section, and the gas carrying moisture absorption solvent will be removed from the gas and returned to the absorption column the gas leaving the absorption column is vented to atmosphere

4中,吸收了二氧化碳的吸收溶液进入再生塔,脱除溶液中的二氧化碳气体而获得再生。 4, the carbon dioxide absorbed into the absorbing solution regeneration tower, to obtain a regenerated stripping solution in the carbon dioxide gas.

[0023] 再生过程是在再生塔中蒸汽与富液换热,富液的二氧化碳释放出来后变成了贫液,贫液与水蒸气进入闪蒸槽,大部分水蒸气返回再生塔,贫液返回吸收塔循环利用,再生出来的二氧化碳气体进入二氧化碳气体分离器,实现气液分离后,二氧化碳气体再通过二氧化碳压缩机进行压缩,以便于下一步的应用。 [0023] In the regeneration process is the regeneration column into a lean solution after heat exchange fluid, the carbon dioxide rich liquid and vapor release rich, lean liquid and vapor entering the flash tank, most of the vapor back to the regenerator column, the lean liquid recycling the absorber after returning regenerated carbon dioxide gas into the carbon dioxide out of the gas separator, to achieve gas-liquid separation, the carbon dioxide gas and then the carbon dioxide compressed by the compressor, so that the next application.

[0024] 本实用新型脱除二氧化碳的原理是利用碱性吸收剂溶液与烟气中的二氧化碳气体接触并发生化学反应,形成不稳定的盐类,而盐类在一定的条件下会逆向分解释放二氧化碳而再生,从而达到将烟气中的二氧化碳气体分离的目的。 [0024] The present invention is the use of carbon dioxide removal alkaline absorbent solution into contact with carbon dioxide gas in the flue gas and the chemical reaction to form unstable salts, and salts at certain conditions will reverse decomposition in carbon dioxide regeneration flue gas so as to achieve the separation of carbon dioxide gas.

[0025] 本实用新型的二氧化碳利用设备为采用联合法同时制纯碱及氯化铵的设备。 [0025] present invention using the apparatus employing carbon dioxide combined soda ash and ammonium chloride Simultaneous braking devices. 如图2所示,联合法制纯碱及氯化铵工艺流程包括纯碱生产过程和氯化铵生产过程,两个过程构成一个循环系统,通过向循环系统中连续加入原料氨、盐和二氧化碳,同时不断地生产出纯碱和氯化铵产品; As shown, the joint comprising SYSTEM soda and soda ash production process of ammonium chloride and ammonium chloride production process, two processes constituting a circulation system 2, by continuously feeding the raw material ammonia and carbon dioxide to the salt loop system, while constantly and ammonium chloride to produce soda ash product;

[0026] 其中,纯碱生产过程是将氯化铵生产过程送来的母液II,吸氨成为氨母液II,通过在碳化塔中向氨母液II通入二氧化碳并使之冷却,使氨母液II中的氯化钠与铵盐(氨、 二氧化碳、水反应)转化成碳酸氢钠和氯化铵,然后将碳酸氢钠结晶滤出,此时滤出的母液称为母液I,滤出的碳酸氢钠结晶送煅烧即成轻质纯碱; [0026] wherein, soda ash production process is fed to the production process of ammonium chloride liquor II, absorption of ammonia becomes ammonia liquor II, by bubbling carbon dioxide to ammonia and cooled mother liquor II in the carbonation tower, the ammonia liquor II sodium chloride with an ammonium salt (ammonia, carbon dioxide, water of reaction) was converted to sodium bicarbonate and ammonium chloride, then the sodium bicarbonate crystals were filtered off, the mother liquor is filtered off at this time is called the mother liquor I, filtered bicarbonate feeding the calcined crystalline sodium Serve light soda ash;

[0027] 氯化铵生产过程是将纯碱生产过程中得到的母液I,吸氨成为氨母液I、经过换热冷却后,进入冷析结晶器和盐析结晶器,使氯化铵结晶析出,再经过分离、干燥得到氯化铵产品,滤出的母液为氨母液II,送往纯碱生产过程。 [0027] The chloride process is the production of soda ash mother liquor obtained in the production process I, the ammonia liquor ammonia absorption becomes I, after cooling the heat exchanger, and enters the cold salting out crystallization crystallizer the crystallization of ammonium chloride, then after separation, and dried to give the product ammonium chloride, filtered mother liquor II to ammonia liquor, soda ash sent to the production process.

[0028] 最后说明的是,以上实施例仅用以说明本实用新型的技术方案而非限制,尽管参照较佳实施例对本实用新型进行了详细说明,本领域的普通技术人员应当理解,可以对本实用新型的技术方案进行修改或者等同替换,而不脱离本技术方案的宗旨和范围,其均应涵盖在本实用新型的权利要求范围当中。 [0028] Finally is noted that, the above embodiments are merely to illustrate the technical solution of the present invention and not limitation, although the present invention has been described in detail with reference to preferred embodiments, those of ordinary skill in the art should be understood that the present technical solution invention modifications or equivalent replacements without departing from the spirit and scope of the present technical solution, which should be covered by the present invention in which the scope of the claims.

Claims (4)

  1. 燃煤电厂烟气中二氧化碳捕集系统,包括吸收塔和再生塔,其特征在于:所述二氧化碳捕集系统还包括再生气冷凝器、贫富液换热器、二氧化碳分离器和二氧化碳压缩机;燃煤电厂的烟气排出口通过引风机升压后与吸收塔的底部相连,烟气从下往上运动,与从吸收塔上部入塔的用于吸收二氧化碳的乙醇胺溶液形成逆流接触,脱除了二氧化碳的烟气从吸收塔的烟气排出口排出,所述吸收塔的底部设置富液排出口,所述富液排出口通过富液泵依次与再生气冷凝器、贫富液换热器和再生塔相连接,吸收了二氧化塔的富液通过富液泵加压进入再生气冷凝器后,经再生气加热后进入贫富液换热器与贫液换热,再由再生塔顶部喷头喷淋后进入再生塔内部,所述再生塔的顶部出气口依次与再生气冷凝器和二氧化碳分离器相连接,所述二氧化塔分离器的气体排出口 Flue gas fired power plant carbon dioxide capture system, including the absorption tower and the regeneration tower, wherein: said system further comprises a carbon dioxide capture regeneration gas condenser, a wealth liquid heat exchanger, carbon dioxide and carbon dioxide separator compressor; coal fired power plant flue gas outlet of the induced draft fan through the bottom of the absorber and is connected to the booster, from the bottom up motion of flue gas is formed in contact with a countercurrent absorption column ethanolamine solution into the tower from the upper portion for absorbing carbon dioxide, in addition to removal flue gas is discharged from the carbon dioxide absorber of the flue gas discharge port provided at the bottom of the absorption column rich liquid outlet, said liquid outlet by a rich-rich regeneration gas pump sequentially with a condenser, a heat exchanger and a liquid wealth is connected to the regeneration column, after absorption dioxide-rich liquid column by pump pressure-rich regeneration gas enters the condenser, after heating the regeneration gas into the rich and the poor solution to the lean liquid heat exchanger, then the top of the regeneration tower head after the spray into the interior of the regeneration tower, the top of the regeneration tower outlet regeneration gas in turn is connected to a condenser and a carbon dioxide separator, said separator column dioxide gas discharge outlet 二氧化碳压缩机相连接,所述二氧化碳压缩机的增压气体排出口与外部二氧化碳利用设备相连接。 Is connected to carbon dioxide compressor, the pressurized carbon dioxide gas compressor discharge port and carbon dioxide using an external device is connected.
  2. 2.根据权利要求1所述的燃煤电厂烟气中二氧化碳捕集系统,其特征在于:所述吸收塔顶的顶部设置有洗涤段和除沫器,脱除了二氧化碳的净烟气在吸收塔上部洗涤并通过除沫器除掉溶液后排入大气。 2. fired power plant flue gas carbon dioxide capture system according to claim 1, characterized in that: said absorbent is provided with a top scrubbing section overhead and demister net flue gas freed of carbon dioxide in the absorption tower upper and washed into the atmosphere through the demister after removal of the solution.
  3. 3.根据权利要求2所述的燃煤电厂烟气中二氧化碳捕集系统,其特征在于:所述系统还包括洗涤液存贮槽和洗涤液泵,所述洗涤液存贮槽与吸收塔相连接,用于存储从吸收塔换出的洗涤水;所述洗涤液泵一端与洗涤液存贮槽相连接,另一端连接至吸收塔的洗涤段, 用于将洗涤水存贮槽内的洗涤水输送至洗涤段。 3. The coal fired power plant flue gas carbon capture system according to claim 2, wherein: said system further comprises a washing solution storage tank and the washing pump, the washing liquid storage tank and the absorber phase connection, the washing water stored in the swapped out from the absorption column for; end of the washing pump and the washing solution storage tank is connected to the other end connected to the washing section of the absorption column, the washing water used to wash the storage tank water to the washing section.
  4. 4.根据权利要求1所述的燃煤电厂烟气中二氧化碳捕集系统,其特征在于:所述外部二氧化碳利用设备为采用联合法同时制纯碱及氯化铵的设备。 The coal fired power plant flue gas carbon capture system according to claim 1, wherein: said external apparatus using carbon dioxide as a molding apparatus while using a combined method of soda ash and ammonium chloride.
CN 201020000778 2010-01-14 2010-01-14 Coal-fired power plant flue gas carbon dioxide capture system CN201603511U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635873A (en) * 2011-02-09 2012-08-15 熊正毅 Method for capturing and circulating carbon dioxide in ordinary power plant boiler
CN103191633A (en) * 2013-04-09 2013-07-10 浙江大学 Device and method for electrically acquiring and purifying carbon dioxide
CN103370121A (en) * 2011-01-06 2013-10-23 阿尔斯通技术有限公司 Method and system for removal of gaseous contaminants
CN106276982A (en) * 2016-10-19 2017-01-04 中盐昆山有限公司 Novel environment-friendly circulation technological system and novel environment-friendly circulation technological method on basis of combined soda ash preparation processes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103370121A (en) * 2011-01-06 2013-10-23 阿尔斯通技术有限公司 Method and system for removal of gaseous contaminants
CN103370121B (en) * 2011-01-06 2015-05-20 阿尔斯通技术有限公司 Method and system for removal of gaseous contaminants
CN102635873A (en) * 2011-02-09 2012-08-15 熊正毅 Method for capturing and circulating carbon dioxide in ordinary power plant boiler
CN103191633A (en) * 2013-04-09 2013-07-10 浙江大学 Device and method for electrically acquiring and purifying carbon dioxide
CN103191633B (en) 2013-04-09 2014-08-13 浙江大学 Device and method for electrically acquiring and purifying carbon dioxide
CN106276982A (en) * 2016-10-19 2017-01-04 中盐昆山有限公司 Novel environment-friendly circulation technological system and novel environment-friendly circulation technological method on basis of combined soda ash preparation processes

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