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WO2011002198A2 - Système et procédé pour absorber et séparer un gaz acide - Google Patents

Système et procédé pour absorber et séparer un gaz acide Download PDF

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Publication number
WO2011002198A2
WO2011002198A2 PCT/KR2010/004198 KR2010004198W WO2011002198A2 WO 2011002198 A2 WO2011002198 A2 WO 2011002198A2 KR 2010004198 W KR2010004198 W KR 2010004198W WO 2011002198 A2 WO2011002198 A2 WO 2011002198A2
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent
gas
absorbing
separating
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.)
Ceased
Application number
PCT/KR2010/004198
Other languages
English (en)
Korean (ko)
Other versions
WO2011002198A3 (fr
Inventor
장경룡
심재구
김준한
이지현
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.)
Korea Electric Power Corp
Original Assignee
Korea Electric Power Corp
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 Korea Electric Power Corp filed Critical Korea Electric Power Corp
Publication of WO2011002198A2 publication Critical patent/WO2011002198A2/fr
Publication of WO2011002198A3 publication Critical patent/WO2011002198A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • 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
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/343—Heat recovery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F22B33/18—Combinations of steam boilers with other apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/006—Layout of treatment plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/40—Sorption with wet devices, e.g. scrubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/70—Condensing contaminants with coolers
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/30—Technologies for a more efficient combustion or heat usage
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/32—Direct CO2 mitigation

Definitions

  • the present invention relates to an acid gas absorption separation system and method.
  • CCS technology is recognized as the most effective technology for dealing with the large amount of greenhouse gases emitted from power plants and industrial facilities. Therefore, international strong organizations such as the G8 Summit, Intergovernmental Panel on Climate Change (IPCC) and International Energy Agency (IEA) Is actively encouraging technology development and utilization.
  • IPCC Intergovernmental Panel on Climate Change
  • IEEE International Energy Agency
  • the capture technology accounts for a large part of the total cost of the CCS technology, and the techniques that have been studied so far include absorption, adsorption, membrane separation, and deep cooling.
  • the absorption method is easy to process a large amount of gas, and because it is suitable for low concentration gas separation, it is easy to apply to most industries and power plants, and has high utility.
  • An object of the present invention is to provide an acid gas absorption separation system and method that utilizes the heat of the process itself in the absorption separation process that separates and utilizes the acid gas produced in the power plant, etc. and can reduce heat consumption through integration with the power plant. .
  • An acid gas absorption separation system is a system for absorbing and separating acid gas using an absorbent, the system comprising: a boiler for generating steam; And a stripping tower connected directly to the boiler to utilize the steam as a heat source for regeneration.
  • the stripping tower may be supplied in a state in which the superheat is lowered by spraying the steam with water.
  • the acid gas absorption separation system is an acid gas absorption separation system having an absorption tower for absorbing acid gas by using an absorbent and a stripping column for separating the processing gas from the absorbent, wherein An absorbent supply line for supplying the absorbent absorbing the acidic gas to the stripping column; And a process gas supply line for supplying a process gas from the stripping column to a reflux drum, wherein the absorbent supply line and the process gas supply line cross each other to allow the absorbent to absorb heat of the process gas. have.
  • the steam generated from the boiler is supplied to the absorption tower, and further comprising a steam supply line intersecting the absorbent supply line, the absorbent may further absorb the heat of the steam.
  • the acid gas absorption separation system is an acid gas absorption separation system having an absorption tower for absorbing acid gas using an absorbent and a stripping column for separating the processing gas from the absorbent, the upper part of the stripping tower And a reflux drum for condensing the process gas from the furnace and supplying the condensed process gas to a boiler.
  • the acid gas absorption separation system is an acid gas absorption separation system having an absorption tower for absorbing acid gas using an absorbent and a stripping column for separating the processing gas from the absorbent, the treatment of the absorption tower A condenser for cooling by receiving exhaust gas; And a condensing water tank connected to the condenser to collect moisture and supply the collected moisture to power plant water.
  • the acid gas absorption separation method according to the present invention in the method of absorbing and separating the acid gas using the absorbent, the steam generated in the boiler can be directly supplied to the heat source for regeneration of the stripping process for separating the process gas from the absorbent. Can be.
  • water may be sprayed on the steam and supplied to the stripping process in a state in which the superheat degree is lowered.
  • the acid gas absorption separation method according to the present invention is an acid gas absorption separation method in which an acid gas is absorbed using an absorbent and a process gas is separated from the absorbent.
  • the heat absorbent may be heat-exchanged so that the absorbent absorbs heat of the processing gas.
  • the absorbent absorbing the acidic gas may be heat-exchanged with the steam generated from the boiler, so that the absorbent absorbing the acidic gas further absorbs the heat of the steam.
  • the acid gas absorption separation method according to the present invention is an acid gas absorption separation method of absorbing acid gas using an absorbent and separating the processing gas from the absorbent, condensing the processing gas, and condensed in the boiler Process gas can be supplied.
  • the acid gas absorption separation method according to the present invention is an acid gas absorption separation method in which an acid gas is absorbed using an absorbent and a process gas is separated from the absorbent.
  • the moisture may be collected by cooling, and the collected moisture may be supplied to power plant water.
  • Acid gas absorption separation system and method according to an embodiment of the present invention by supplying the steam generated in the boiler directly to the reboiler, it is possible to secure more unit heat of steam and to heat the reboiler independently of the turbine.
  • when supplying steam from the boiler by spraying water to lower the degree of superheating, when used as a heat source for regeneration of the stripping tower can be provided with flexibility in selecting the material of the heat exchanger.
  • the acid gas absorption separation system and method according to an embodiment of the present invention by the lean / rich amine exchanger to the heat exchange between the low-temperature absorbent and the high-temperature steam absorbed the acid gas, so that the absorbent applied to the stripping column You can reduce the heat by increasing the temperature.
  • the acid gas absorption separation system and method according to an embodiment of the present invention by the condenser is a heat exchange between the low-temperature absorbent supplied from the absorption tower and the processing gas supplied from the stripping column, thereby occurring in the process itself of the system The heat can be recovered and the processing gas can be cooled.
  • the acid gas absorption separation system and method according to an embodiment of the present invention can condense the processing gas from the upper part of the stripping tower and send it directly to the reboiler, thereby enabling independent operation of the stripping tower.
  • the acid gas absorption separation system and method according to an embodiment of the present invention by collecting the treated flue gas from the absorption tower in the condensing water tank to reuse the power plant water, it is possible to increase the effect of resource utilization.
  • FIG. 1 is a block diagram of an acid gas absorption separation system according to an embodiment of the present invention.
  • FIG. 1 is a block diagram showing an acid gas absorption separation system according to an embodiment of the present invention. Referring to Figure 1, it will be described together with the acid gas absorption separation system and method according to an embodiment of the present invention.
  • the acid gas absorption separation system 100 is a boiler 110, reboiler 120, absorption tower 130, stripping tower 140, condensing water tank 150 ),
  • the reflux drum 160 may be configured.
  • steam is supplied from the boiler 110 to the reboiler 120 along a supply line of 1. That is, steam generated in the boiler 110 is directly supplied to the reboiler 120. Therefore, since a turbine does not exist in the steam supply path, more unit heat amount of steam can be ensured.
  • the superheat may be lowered by spraying water when steam is supplied to the reboiler 120. Therefore, when used as a heat source for regeneration of the stripping column 140 connected to the reboiler 120, it is possible to flexibly respond to the material selection of the heat exchanger.
  • the steam from the reboiler 120 is supplied to a lean / rich amine exchanger 122 along a supply line of 2 by a lean amine pump 121.
  • the lean / rich amine exchanger 122 is supplied with steam (lean amine) along the supply line of 2, and the absorbent (rich amine) from the condenser 161 along the supply line of 5 to cross the and rich amine).
  • the lean / rich amine exchanger 122 increases the temperature of the absorbent by heat of the steam.
  • the steam is cooled to a low temperature suitable for acid gas absorption through a lean amine cooler 123, and is supplied to the absorption tower 130 along a supply line 3.
  • the absorption tower 130 receives the acid gas from the inlet tube 131 and absorbs it through the absorbent.
  • the acid gas may be, for example, carbon dioxide (CO 2), hydrogen sulfide (H 2 S), sulfur dioxide (SO 2), nitrogen dioxide (NO 2), or carbon sulfate (COS).
  • the low temperature absorbent is supplied to the condenser 161 by the rich amine pump 132.
  • the condenser 161 receives a high temperature processing gas from the stripping column 140 through a supply line 7 that crosses the condenser 161.
  • the condenser 161 causes heat exchange between the low temperature absorbent and the high temperature processing gas. Accordingly, the low temperature absorbent absorbs heat of the high temperature process gas, and as a result, may absorb heat generated in the process itself. At the same time, the high temperature process gas may be cooled by dissipating heat to the low temperature absorbent.
  • the absorbent passing through the condenser 161 is supplied to the lean / rich amine exchanger 122 through a supply line 5.
  • the steam supplied from the reboiler 120 to the absorption tower 130 is cooled by the absorbent supplied from the condenser 161, while the absorbent supplied from the condenser 161 Heated by steam. Therefore, the absorbent supplied from the condenser 161 is supplied to the stripping column 140 through the supply line of 6 in a heated state, and then the stripping process is performed.
  • the processing gas of the stripping column 140 is supplied to the condenser 161 through the supply line 7 and is cooled in the state of being cooled by the low temperature absorbent supplied to the condenser 161. Supplied to the reflux drum 160.
  • the hot processing gas cooled by passing through the condenser 161 is supplied to the reflux drum 160 to condense.
  • the condensed process gas is not directly refluxed to the upper portion of the stripping column 140, but is directly supplied to the reboiler 120 along the supply line of 8. Therefore, independent operation is possible when the stripping tower 140 is removed, thereby improving the stripping capability.
  • the treatment off-gas from the absorption tower 130 is supplied to the condensing water tank 150 through the condenser 151.
  • the moisture of the treated exhaust gas is collected in the condensing water tank 150, and the collected moisture is reused as water for power generation along the supply line of 9. Therefore, the resource utilization effect can be improved.
  • the acid gas absorption separation system 100 and the method according to the embodiment of the present invention by supplying the steam generated in the boiler 110 directly to the reboiler 120, thereby ensuring more unit heat amount of steam And heat the reboiler independently of the turbine.
  • the boiler 110 when supplying steam from the boiler 110, by spraying water to lower the superheat, it can be provided with flexibility in selecting the material of the heat exchanger when used as a heat source for regeneration of the stripping column 140.
  • the temperature of the absorbent applied to the stripping column 140 may be increased to reduce the amount of heat. have.
  • the condenser 161 allows heat exchange between the low temperature absorbent supplied from the absorption tower 130 and the processing gas supplied from the stripping tower 140 to recover heat generated in the process itself of the system. And cooling of the processing gas can be achieved.
  • the condenser allows heat exchange between the low temperature absorbent supplied from the absorption tower and the processing gas supplied from the stripping column, thereby recovering heat generated in the process itself of the system, and cooling the processing gas. can do.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Gas Separation By Absorption (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

L'invention concerne un système et un procédé pour absorber et séparer un gaz acide, qui utilise la chaleur générée dans un procédé d'absorption et de séparation pour séparer et utiliser un gaz acide dans une centrale électrique ou analogue, et réduit la consommation de chaleur en étant intégré dans la centrale électrique. Selon un mode de réalisation, l'invention concerne un système pour absorber et séparer un gaz acide en utilisant un absorbant, qui comprend : une chaudière pour générer de la vapeur ; et un extracteur directement connecté à la chaudière pour utiliser la vapeur en tant que source de chaleur pour une régénération.
PCT/KR2010/004198 2009-06-30 2010-06-29 Système et procédé pour absorber et séparer un gaz acide Ceased WO2011002198A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0059457 2009-06-30
KR1020090059457A KR100983677B1 (ko) 2009-06-30 2009-06-30 산성 가스 흡수 분리 시스템 및 방법

Publications (2)

Publication Number Publication Date
WO2011002198A2 true WO2011002198A2 (fr) 2011-01-06
WO2011002198A3 WO2011002198A3 (fr) 2011-03-31

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KR (1) KR100983677B1 (fr)
WO (1) WO2011002198A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112010003389T5 (de) 2009-08-25 2012-06-14 Basf Plant Science Company Gmbh Nematodenresistente transgene Pflanzen
CN103566712A (zh) * 2012-08-07 2014-02-12 中国石油化工股份有限公司 一种烟气二氧化碳捕集工艺

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KR101168063B1 (ko) 2010-09-28 2012-07-31 한국전력공사 산성가스 분리용 저 에너지 재생공정 및 장치
KR101416546B1 (ko) * 2012-07-25 2014-07-09 서강대학교산학협력단 흡수제 또는 흡착제를 이용한 가스 포집 시스템 및 그 방법
KR101498460B1 (ko) 2013-11-27 2015-03-05 한국에너지기술연구원 분리수를 활용한 에너지 절감형 산성 가스 포집 시스템 및 방법
KR101485956B1 (ko) 2013-12-04 2015-01-26 한국에너지기술연구원 산성 가스 분리 회수 시스템 및 방법
KR101583462B1 (ko) 2013-12-04 2016-01-13 한국에너지기술연구원 에너지 절감형 산성 가스 포집 시스템 및 방법
CN103752159A (zh) * 2014-01-27 2014-04-30 北京航天动力研究所 一种烟气处理酸吸收系统及方法
KR101583463B1 (ko) 2014-03-06 2016-01-12 한국에너지기술연구원 에너지 절감형 산성 기체 포집 시스템 및 방법
KR101536153B1 (ko) 2014-03-06 2015-11-20 한국에너지기술연구원 흡수제 재순환을 이용한 저에너지형 산성가스 포집 시스템 및 방법
KR101583459B1 (ko) 2014-11-12 2016-01-11 한국에너지기술연구원 처리가스를 이용한 에너지 절감형 산성 기체 포집 시스템 및 방법
KR102233842B1 (ko) 2019-12-09 2021-03-30 한국에너지기술연구원 공정열을 활용한 이산화탄소 포집 시스템 및 그를 이용한 이산화탄소 포집 방법
KR20220074315A (ko) 2020-11-27 2022-06-03 서강대학교산학협력단 아민 증기와 물 사이의 물질전달계수 측정장치
KR102467329B1 (ko) 2020-12-15 2022-11-16 주식회사 콘웰 판형 열교환기를 이용한 건식 이산화탄소 포집장치 및 이를 이용한 건식 이산화탄소 포집공정
CN114042366B (zh) * 2021-11-25 2024-10-29 中冶南方都市环保工程技术股份有限公司 一种焦化脱硫废盐制备硫酸的尾气处理系统及处理方法

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JP2931153B2 (ja) * 1991-11-28 1999-08-09 株式会社日立製作所 燃焼排ガスからの酸性ガスの除去方法
US6174506B1 (en) * 1999-06-10 2001-01-16 Praxair Technology, Inc. Carbon dioxide recovery from an oxygen containing mixture
GB0021409D0 (en) * 2000-08-31 2000-10-18 Boc Group Plc Treatment of a gas stream containing hydrogen sulphide
WO2006037320A1 (fr) * 2004-10-08 2006-04-13 Union Engineering A/S Procede de recuperation de dioxyde de carbone a partir d'un gaz

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112010003389T5 (de) 2009-08-25 2012-06-14 Basf Plant Science Company Gmbh Nematodenresistente transgene Pflanzen
CN103566712A (zh) * 2012-08-07 2014-02-12 中国石油化工股份有限公司 一种烟气二氧化碳捕集工艺

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Publication number Publication date
WO2011002198A3 (fr) 2011-03-31
KR100983677B1 (ko) 2010-09-24

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