KR102424422B1 - System for treating exhaust gas from ship - Google Patents

System for treating exhaust gas from ship Download PDF

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KR102424422B1
KR102424422B1 KR1020220042985A KR20220042985A KR102424422B1 KR 102424422 B1 KR102424422 B1 KR 102424422B1 KR 1020220042985 A KR1020220042985 A KR 1020220042985A KR 20220042985 A KR20220042985 A KR 20220042985A KR 102424422 B1 KR102424422 B1 KR 102424422B1
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South Korea
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oxygen
separation unit
carbon dioxide
unit
separation
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KR1020220042985A
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Korean (ko)
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지석준
이채호
장동식
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한라아이엠에스 주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0462—Temperature swing adsorption
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • 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
    • B01D53/22—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 diffusion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0857—Carbon oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0864—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/10—Carbon or carbon oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/16—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications

Abstract

The present invention relates to a system for processing exhaust gas generated from a ship, comprising: a separation unit separating exhaust gas from an engine into oxygen, nitrogen, and carbon dioxide; an oxygen utilization unit utilizing the oxygen separated from the separation unit; a nitrogen utilization unit utilizing the nitrogen separated from the separation unit; and a carbon dioxide utilization unit utilizing the carbon dioxide separated from the separation unit.

Description

선박에서 발생하는 배기가스의 처리 시스템{System for treating exhaust gas from ship}System for treating exhaust gas from ship}

본 발명은 선박에서 발생하는 배기가스의 처리 시스템에 관한 것이다.The present invention relates to a system for treating exhaust gases generated from ships.

선박의 엔진에서는 산소, 질소 및 이산화탄소 등을 포함하는 배기가스가 발생한다. 이 중 지구온난화 등의 문제로 이산화탄소의 배출이 문제된다.The engine of a ship generates exhaust gas containing oxygen, nitrogen, carbon dioxide, and the like. Among them, the emission of carbon dioxide is a problem due to problems such as global warming.

종래 기술에서는 배기가스 중 이산화탄소를 흡수탑에서 포집체를 이용하여 포집하고, 재생탑에서 포집된 이산화탄소를 포집체로부터 분리하였다. 이러한 종래 기술에서는 단순히 배기가스로부터 이산화탄소만을 분리하여 전체 배기가스의 처리가 비효율적이었다.In the prior art, carbon dioxide in the exhaust gas was collected in an absorption tower using a collector, and the carbon dioxide captured in the regeneration tower was separated from the collector. In this prior art, it was inefficient to treat the entire exhaust gas by simply separating carbon dioxide from the exhaust gas.

한국공개특허 제10-1223786호(2013년1월 17일 공고)Korean Patent Publication No. 10-1223786 (published on January 17, 2013)

본 발명의 목적은 선박에서 발생하는 배기가스의 처리 시스템을 제공하는 것이다.SUMMARY OF THE INVENTION It is an object of the present invention to provide a system for treating exhaust gases generated by ships.

상기 본 발명의 목적은 선박에서 발생하는 배기가스의 처리 시스템에 있어서, 엔진에서 배기가스를 산소, 질소 및 이산화탄소로 각각 분리하는 분리유닛; 상기 분리유닛에서 분리된 산소를 활용하는 산소 활용부; 상기 분리유닛에서 분리된 질소를 활용하는 질소 활용부; 및 상기 분리유닛에서 분리된 이산화탄소를 활용하는 이산화탄소 활용부를 포함하는 것에 의해 달성된다.An object of the present invention is to provide a system for treating exhaust gas generated from a ship, comprising: a separation unit for separating the exhaust gas from the engine into oxygen, nitrogen and carbon dioxide, respectively; an oxygen utilization unit utilizing oxygen separated from the separation unit; a nitrogen utilization unit utilizing the nitrogen separated in the separation unit; and a carbon dioxide utilization unit utilizing the carbon dioxide separated in the separation unit.

상기 분리유닛은, 질소를 산소 및 이산화탄소로부터 분리하는 제1분리유닛; 및 상기 제1분리유닛의 하류에 위치하며 산소와 이산화탄소를 분리하는 제2분리유닛을 포함할 수 있다.The separation unit may include a first separation unit for separating nitrogen from oxygen and carbon dioxide; and a second separation unit located downstream of the first separation unit and separating oxygen and carbon dioxide.

상기 제1분리유닛은 스크러빙, 압력변동흡착(PSA) 및 막분리 중 적어도 어느 하나를 이용할 수 있다.The first separation unit may use at least one of scrubbing, pressure swing adsorption (PSA) and membrane separation.

상기 제2분리유닛은, 상기 산소와 이산화탄소를 1차 분리하는 제1서브분리유닛; 및 상기 제1서브분리유닛의 하류에 위치하며, 상기 산소와 이산화탄소를 2차 분리하는 제2서브분리유닛을 포함할 수 있다.The second separation unit may include: a first sub separation unit for primary separation of the oxygen and carbon dioxide; and a second sub-separation unit disposed downstream of the first sub-separation unit and configured to secondaryly separate the oxygen and carbon dioxide.

상기 제1서브분리유닛으로부터 분리된 산소를 상기 산소활용부로 공급하는 제1산소공급라인; 및 상기 제2서브분리유닛으로부터 분리된 산소를 상기 산소활용부로 공급하는 제2산소공급라인을 포함할 수 있다.a first oxygen supply line for supplying oxygen separated from the first sub separation unit to the oxygen utilization unit; and a second oxygen supply line for supplying oxygen separated from the second sub separation unit to the oxygen utilization unit.

상기 제1산소공급라인을 통해 상기 산소활용부로 공급되는 산소의 양은 상기 제2산소공급라인을 통해 상기 산소활용부로 공급되는 산소의 양에 비해 10배 내지 200배일 수 있다.The amount of oxygen supplied to the oxygen utilization unit through the first oxygen supply line may be 10 to 200 times greater than the amount of oxygen supplied to the oxygen utilization unit through the second oxygen supply line.

상기 제1서브분리유닛은 산소와 이산화탄소를 (1) 가압 및 냉각법 또는 (2) 막분리를 이용하여 분리하며, 상기 제2서브분리유닛은 온도변동흡착(TSA) 및 압력변동흡착(PSA) 중 적어도 하나를 이용할 수 있다.The first sub-separation unit separates oxygen and carbon dioxide by using (1) pressurization and cooling method or (2) membrane separation, and the second sub-separation unit separates oxygen and carbon dioxide from temperature swing adsorption (TSA) and pressure swing adsorption (PSA). At least one is available.

상기 산소활용부는 상기 엔진에 공기를 공급하는 과급기를 포함할 수 있다.The oxygen utilization unit may include a supercharger for supplying air to the engine.

상기 과급기는 산소농도가 높아진 공기를 상기 엔진에 공급하며, 상기 엔진의 작동은 고농도산소연소법으로 이루어질 수 있다.The supercharger supplies air having an increased oxygen concentration to the engine, and the engine may be operated by a high-concentration oxygen combustion method.

본 발명에 따르면 선박에서 발생하는 배기가스의 처리 시스템이 제공된다.According to the present invention, there is provided a system for treating exhaust gas generated from a ship.

도 1은 본 발명의 일 실시예에 따른 배기가스 처리 시스템의 구성도이다.1 is a block diagram of an exhaust gas treatment system according to an embodiment of the present invention.

이하 도면을 참조하여 본 발명을 설명한다.Hereinafter, the present invention will be described with reference to the drawings.

도 1은 본 발명의 일 실시예에 따른 배기가스 처리 시스템의 구성도이다.1 is a block diagram of an exhaust gas treatment system according to an embodiment of the present invention.

처리 시스템(1)은 분리유닛(10, 20), 불활성가스 활용부(30), 이산화탄소 활용부(40), 산소 활용부(50) 및 산소공급라인(61, 62)를 포함한다.The treatment system 1 includes separation units 10 and 20 , an inert gas utilization unit 30 , a carbon dioxide utilization unit 40 , an oxygen utilization unit 50 , and oxygen supply lines 61 and 62 .

본 발명에 따른 처리 시스템(1)은 선박에 설치된다.The treatment system 1 according to the invention is installed on a ship.

분리유닛(10, 20)은 선박의 엔진으로부터 발생된 배기가스를 가스 종류 별로 분리한다. 엔진은 디젤을 연료로 사용할 수 있으나 다른 연료를 사용할 수도 있다. 다른 연료로는, 이에 한정되지 않으나, 벙커C유, LNG 또는 LPG를 사용할 수 있다.The separation units 10 and 20 separate the exhaust gas generated from the engine of the ship by gas type. The engine may use diesel as fuel, but other fuels may also be used. Other fuels include, but are not limited to, bunker C oil, LNG, or LPG.

배기가스는 질소, 산소, 이산화탄소 및 수증기가 주 성분이며, 분리유닛(10, 20)을 통해 각 가스로 분리되며, 수증기는 응축시킨다.The exhaust gas is mainly composed of nitrogen, oxygen, carbon dioxide and water vapor, and is separated into each gas through the separation units 10 and 20, and the water vapor is condensed.

배기가스의 성분은, 구체적으로, 질량비로 질소 75-79%, 산소 11-15%, 이산화탄소 4-8%이며, 수증기와 기타 기체를 포함할 수 있다.The components of the exhaust gas are, specifically, nitrogen 75-79%, oxygen 11-15%, and carbon dioxide 4-8% by mass ratio, and may include water vapor and other gases.

분리유닛(10, 20)은 제1분리유닛(10)과 제2분리유닛(20)을 포함한다. 제1분리유닛(10)은 질소를 산소 및 이산화탄소로부터 분리한다. 제2분리유닛(20)은 제1분리유닛(10)의 하류에 위치하며 질소가 분리된 산소 및 이산화탄소의 혼합가스에서 산소와 이산화탄소를 분리한다.The separation units 10 and 20 include a first separation unit 10 and a second separation unit 20 . The first separation unit 10 separates nitrogen from oxygen and carbon dioxide. The second separation unit 20 is located downstream of the first separation unit 10 and separates oxygen and carbon dioxide from a mixed gas of oxygen and carbon dioxide from which nitrogen is separated.

제1분리유닛(10)은 스크러빙, 압력변동흡착(PSA) 및 막분리 중 하나 이상의 방법을 사용할 수 있다. 제1분리유닛(10)을 통해 분리된 질소는 불활성가스활용부(30)로 공급된다.The first separation unit 10 may use one or more methods of scrubbing, pressure swing adsorption (PSA), and membrane separation. The nitrogen separated through the first separation unit 10 is supplied to the inert gas utilization unit 30 .

제1분리유닛(10)에서는 질소를 99% 내지 99.999% 분리할 수 있다.In the first separation unit 10, 99% to 99.999% of nitrogen may be separated.

불활성가스활용부(30)는 질소를 보관하는 저장탱크를 포함한다. 불활성가스활용부(30)는 저장탱크에 저장된 질소를 선내에 필요한 설비에 공급할 수 있다. 질소는, 이에 한정되지는 않으나, 위험화물 적재 화물탱크 불활성화, LNG운반선 화물탱크 누설 확인, LNG 연료관 퍼징 등에 사용될 수 있다. The inert gas utilization unit 30 includes a storage tank for storing nitrogen. The inert gas utilization unit 30 may supply nitrogen stored in the storage tank to necessary facilities on board the ship. Nitrogen, but is not limited thereto, may be used for inactivating dangerous cargo loading cargo tanks, checking for leakage of cargo tanks of LNG carriers, purging LNG fuel pipes, and the like.

제2분리유닛(20)은 제1서브분리유닛(21)과 제2서브분리유닛(22)을 포함한다. 제1서브분리유닛(21)은 산소와 이산화탄소를 1차 분리하고 분리된 산소를 제1산소공급라인(61)을 통해 산소활용부(50)로 공급한다. 제2서브분리유닛은 산소가 1차 분리된 산소와 이산화탄소에서 산소를 추가분리하고, 추가분리된 산소는 제2산소공급라인(62)을 통해 산소활용부(50)로 공급된다.The second separation unit 20 includes a first sub separation unit 21 and a second sub separation unit 22 . The first sub separation unit 21 first separates oxygen and carbon dioxide and supplies the separated oxygen to the oxygen utilization unit 50 through the first oxygen supply line 61 . The second sub separation unit further separates oxygen from oxygen and carbon dioxide from which oxygen is primarily separated, and the further separated oxygen is supplied to the oxygen utilization unit 50 through the second oxygen supply line 62 .

제1서브분리유닛(21)은 가스분리기라고 불리며, 산소의 98% 내지 99.5% 또는 98.5% 내지 99.5%를 제거한다. 제2서브분리유닛(22)은 가스정제기라고도 불리며, 잔여산소를 분리하여 이산화탄소의 순도를 99.8% 내지 100% 또는 99.9% 내지 100% 또는 99.9% 내지 99.99999%로 높인다.The first sub separation unit 21 is called a gas separator and removes 98% to 99.5% or 98.5% to 99.5% of oxygen. The second sub separation unit 22 is also called a gas purifier, and by separating residual oxygen, the purity of carbon dioxide is increased to 99.8% to 100%, or 99.9% to 100%, or 99.9% to 99.99999%.

제1서브분리유닛(21)은 산소와 이산화탄소를 (1) 가압 및 냉각법 또는 (2) 막분리를 이용하여 분리한다. 제2서브분리유닛(22)은 온도변동흡착(TSA) 및/또는 압력변동흡착(PSA)을 이용하여 산소와 이산화탄소를 분리한다.The first sub separation unit 21 separates oxygen and carbon dioxide using (1) pressurization and cooling method or (2) membrane separation. The second sub separation unit 22 separates oxygen and carbon dioxide using temperature swing adsorption (TSA) and/or pressure swing adsorption (PSA).

가압 및 냉각법에서는 혼합가스를 가압한 후(예를 들어, 10bar 내지 30bar) 온도를 낮추어(예를 들어, -10℃ 내지 -30℃) 산소와 이산화탄소의 액화특성을 상이하게 하여 분리를 수행한다.In the pressurization and cooling method, after pressurizing the mixed gas (for example, 10 bar to 30 bar), the temperature is lowered (for example, -10°C to -30°C) to have different liquefaction characteristics of oxygen and carbon dioxide to perform separation.

산소의 대부분이 제1서브분리유닛(21)에서 제거되므로, 제1산소공급라인(61)을 통해 공급되는 산소는 제2서브분리유닛(22)을 통해 공급되는 산소보다 많게 된다.Since most of the oxygen is removed from the first sub separation unit 21 , the oxygen supplied through the first oxygen supply line 61 is greater than the oxygen supplied through the second sub separation unit 22 .

제1산소공급라인(61)을 통해 산소활용부(50)로 공급되는 산소의 양은 상기 제2산소공급라인을 통해 산소활용부(50)로 공급되는 산소의 양에 비해 10배 내지 10,000배 또는 10배 내지 200배 또는 50배 내지 200배일 수 있다.The amount of oxygen supplied to the oxygen utilization unit 50 through the first oxygen supply line 61 is 10 to 10,000 times greater than the amount of oxygen supplied to the oxygen utilization unit 50 through the second oxygen supply line, or It may be 10-fold to 200-fold or 50-fold to 200-fold.

이산화탄소의 활용을 위해서는 이산화탄소의 순도가 매우 높아야 하는데, 산소와 이산화탄소의 혼합가스로부터 단일 공정을 통해 높은 순도의 이산화탄소를 얻기 어렵다. 본 발명에서는 2단계의 분리장치를 통해 산소를 1차와 2차에 걸쳐 분리하여 높은 순도의 이산화탄소가스를 얻는다.In order to utilize carbon dioxide, the purity of carbon dioxide must be very high, and it is difficult to obtain high-purity carbon dioxide from a mixed gas of oxygen and carbon dioxide through a single process. In the present invention, high purity carbon dioxide gas is obtained by first and second separation of oxygen through a two-stage separation device.

이산화탄소활용부(40)는 이산화탄소를 보관하는 저장탱크를 포함한다. 이산화탄소활용부(40)는 저장탱크에 저장된 이산화탄소를 선내에 필요한 설비에 공급할 수 있다. 이산화탄소는 액체상태로 저장될 수 있다. 이산화탄소는, 이에 한정되지 않으나, 소화 용도로 사용될 수 있다.The carbon dioxide utilization unit 40 includes a storage tank for storing carbon dioxide. The carbon dioxide utilization unit 40 may supply the carbon dioxide stored in the storage tank to necessary facilities in the ship. Carbon dioxide can be stored in a liquid state. Carbon dioxide may be used, but not limited to, for fire extinguishing purposes.

산소활용부(50)는 과급기를 포함할 수 있다. 과급기는 엔진에 공기를 공급하는 역할을 수행한다. 순도가 높은 산소의 공급에 의해 과급기는 산소농도가 높아진 공기를 엔진에 공급한다. 엔진에 공급되는 공기의 산소농도는 27%이상, 구체적으로는 27% 내지 50% 또는 27% 내지 35%일 수 있다. 높은 산소농도에 의해 엔진의 작동은 고농도산소연소법으로 이루어질 수 있으며, 고농도산소연소법으로 인해 엔진에서 발생하는 이산화탄소의 양이 감소하며, 질소산화물이나 미세파티클 등의 배출량도 감소시킬 수 있다.The oxygen utilization unit 50 may include a supercharger. The supercharger is responsible for supplying air to the engine. By supplying high-purity oxygen, the supercharger supplies air with increased oxygen concentration to the engine. The oxygen concentration of the air supplied to the engine may be 27% or more, specifically 27% to 50% or 27% to 35%. Due to the high oxygen concentration, the engine can be operated by the high-concentration oxygen combustion method, and the high-concentration oxygen combustion method reduces the amount of carbon dioxide generated from the engine, and can also reduce the emission of nitrogen oxides and fine particles.

다른 실시예에서 산소활용부(50)는 별도의 저장탱크를 필요하며, 과급기 외의 다른 구성에 산소를 공급할 수 있다. 산소는, 이에 한정되지 않으나, 구명 설비장비 등에 사용될 수 있다.In another embodiment, the oxygen utilization unit 50 requires a separate storage tank, and may supply oxygen to components other than the supercharger. Oxygen, but is not limited thereto, may be used, such as life-saving equipment.

처리 시스템(1)은 이 외에 가스의 이동을 위한 송풍기(71, 72)과 배관을 더 포함한다. 송풍기(72)는 팬(fan), 블로워(blower) 또는 컴프레셔를 포함할 수 있다.In addition, the treatment system 1 further includes blowers 71 and 72 and piping for moving the gas. The blower 72 may include a fan, a blower, or a compressor.

이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 있어서 명백할 것이다.The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

Claims (9)

선박에서 발생하는 배기가스의 처리 시스템에 있어서,
엔진에서 배출되는 배기가스를 산소, 질소 및 이산화탄소로 각각 분리하는 분리유닛;
상기 분리유닛에서 분리된 산소를 활용하는 산소 활용부;
상기 분리유닛에서 분리된 질소를 활용하는 질소 활용부; 및
상기 분리유닛에서 분리된 이산화탄소를 활용하는 이산화탄소 활용부를 포함하며,
상기 분리유닛은,
질소를 산소 및 이산화탄소로부터 분리하는 제1분리유닛; 및
상기 제1분리유닛의 하류에 위치하며 산소와 이산화탄소를 분리하는 제2분리유닛을 포함하는 시스템.In the treatment system of exhaust gas generated from a ship,
a separation unit that separates the exhaust gas discharged from the engine into oxygen, nitrogen and carbon dioxide, respectively;
an oxygen utilization unit utilizing oxygen separated from the separation unit;
a nitrogen utilization unit utilizing the nitrogen separated in the separation unit; and
It includes a carbon dioxide utilization unit that utilizes the carbon dioxide separated in the separation unit,
The separation unit is
a first separation unit for separating nitrogen from oxygen and carbon dioxide; and
and a second separation unit located downstream of the first separation unit and configured to separate oxygen and carbon dioxide. 삭제delete 제1항에 있어서,
상기 제1분리유닛은 스크러빙, 압력변동흡착(PSA) 및 막분리 중 적어도 어느 하나를 이용하는 시스템. According to claim 1,
The first separation unit is a system using at least one of scrubbing, pressure swing adsorption (PSA) and membrane separation. 제3항에 있어서,
상기 제2분리유닛은,
상기 산소와 이산화탄소를 1차 분리하는 제1서브분리유닛; 및
상기 제1서브분리유닛의 하류에 위치하며, 상기 산소와 이산화탄소를 2차 분리하는 제2서브분리유닛을 포함하는 시스템.4. The method of claim 3,
The second separation unit,
a first sub-separation unit for primary separation of the oxygen and carbon dioxide; and
and a second sub-separation unit positioned downstream of the first sub-separation unit and configured to secondaryly separate the oxygen and carbon dioxide. 제4항에 있어서,
상기 제1서브분리유닛으로부터 분리된 산소를 상기 산소활용부로 공급하는 제1산소공급라인; 및
상기 제2서브분리유닛으로부터 분리된 산소를 상기 산소활용부로 공급하는 제2산소공급라인을 포함하는 시스템.5. The method of claim 4,
a first oxygen supply line for supplying oxygen separated from the first sub separation unit to the oxygen utilization unit; and
and a second oxygen supply line for supplying oxygen separated from the second sub separation unit to the oxygen utilization unit. 제5항에 있어서,
상기 제1산소공급라인을 통해 상기 산소활용부로 공급되는 산소의 양은 상기 제2산소공급라인을 통해 상기 산소활용부로 공급되는 산소의 양에 비해 10배 내지 200배인 시스템.6. The method of claim 5,
The amount of oxygen supplied to the oxygen utilization unit through the first oxygen supply line is 10 to 200 times greater than the amount of oxygen supplied to the oxygen utilization unit through the second oxygen supply line. 제6항에 있어서,
상기 제1서브분리유닛은 산소와 이산화탄소를 (1) 가압 및 냉각법 또는 (2) 막분리를 이용하여 분리하며,
상기 제2서브분리유닛은 온도변동흡착(TSA) 및 압력변동흡착(PSA) 중 적어도 하나를 이용하는 시스템.7. The method of claim 6,
The first sub separation unit separates oxygen and carbon dioxide using (1) pressurization and cooling method or (2) membrane separation,
The second sub-separation unit is a system using at least one of temperature swing adsorption (TSA) and pressure swing adsorption (PSA). 제7항에 있어서,
상기 산소활용부는 상기 엔진에 공기를 공급하는 과급기를 포함하는 시스템.8. The method of claim 7,
The oxygen utilization unit system including a supercharger for supplying air to the engine. 제8항에 있어서,
상기 과급기는 산소농도가 높아진 공기를 상기 엔진에 공급하며, 상기 엔진의 작동은 고농도산소연소법으로 이루어지는 시스템.
9. The method of claim 8,
The supercharger supplies air with an increased oxygen concentration to the engine, and the engine is operated by a high-concentration oxygen combustion method.
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