WO2014010776A1 - 해수 중 마그네슘 이온을 이용한 이산화탄소 농축반응장치 및 이를 이용한 이산화탄소 해양격리방법 - Google Patents
해수 중 마그네슘 이온을 이용한 이산화탄소 농축반응장치 및 이를 이용한 이산화탄소 해양격리방법 Download PDFInfo
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- WO2014010776A1 WO2014010776A1 PCT/KR2012/006487 KR2012006487W WO2014010776A1 WO 2014010776 A1 WO2014010776 A1 WO 2014010776A1 KR 2012006487 W KR2012006487 W KR 2012006487W WO 2014010776 A1 WO2014010776 A1 WO 2014010776A1
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- seawater
- carbon dioxide
- calcium oxide
- ocean
- magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
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- 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
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/402—Alkaline earth metal or magnesium compounds of magnesium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
- B01D2252/1035—Sea water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/12—Nature of the water, waste water, sewage or sludge to be treated from the silicate or ceramic industries, e.g. waste waters from cement or glass factories
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Definitions
- the present invention relates to a carbon dioxide enrichment reaction apparatus using magnesium ions in seawater and a carbon dioxide ocean containment method using the same.
- the present invention is easy to apply in the plant that generates a large amount of carbon dioxide and alkaline waste, such as coal ash, steel slag, cement manufacturing residues, such as thermal power plants, steel mills, cement manufacturing plants, etc.
- carbon dioxide and alkaline waste such as coal ash, steel slag, cement manufacturing residues, such as thermal power plants, steel mills, cement manufacturing plants, etc.
- the present invention relates to a carbon dioxide enrichment reactor using magnesium ions in seawater and a carbon dioxide ocean containment method using the same.
- CCS carbon capture and storage technology
- the capture technology consists of precombustion capture technology, oxy-fuel combustion technology, and post-combustion capture technology.
- Pre-combustion capture technology converts fuel containing carbon into carbon dioxide and hydrogen fuel using appropriate reactions (such as reforming reactions and water gas shift reactions), and then captures and removes carbon dioxide to burn the carbon dioxide into the reaction product. It is a technique that does not occur.
- the pure oxygen combustion technology reduces the absolute amount of exhaust gas by using only nitrogen removed oxygen without using air as an oxidizing agent of fuel, and it is easy to separate and remove carbon dioxide because the exhaust gas composition contains only carbon dioxide and water.
- Post combustion capture technology is a technology that separates the carbon dioxide contained in the exhaust gas after combustion has the advantage that it is the easiest to apply to existing sources.
- a suitable solvent typically an amine absorbent
- a method using a separator there is a method using carbon dioxide adsorption and desorption of solid particles.
- Carbon dioxide captured using this technique should be stored using appropriate methods.
- land or seabed storage methods are mainly considered. This method injects carbon dioxide into a supercritical state into an underground space, such as an oil field, gas field, or brine layer, and sequesters and stores it through thermal, hydraulic, mechanical, and chemical behaviors.
- an underground space such as an oil field, gas field, or brine layer
- sequesters and stores it through thermal, hydraulic, mechanical, and chemical behaviors.
- there is a limit of space available for underground storage and because it stores carbon dioxide in the supercritical state, there is a possibility of re-release to the atmosphere or sea water due to leakage due to high pressure. If carbon dioxide leaks into seawater, ocean acidification can adversely affect marine ecosystems.
- Marine storage methods include direct injection of carbon dioxide at a depth of 1,000 m or more to dissolve it in seawater, and injection of high density liquid carbon dioxide obtained by liquefaction with a compression device in a seabed isolated space of 3,000 m or more.
- carbon dioxide is injected and stored directly into the ocean, it is not a permanent sequestration and storage method because of the impact of marine ecosystems on ocean acidification and the potential for dissolved carbon dioxide to be re-emitted into the atmosphere by ultimately equilibrating with the atmosphere.
- Liquid carbon dioxide sequestration methods have disadvantages such as the need for equipment and power for liquefaction as well as ocean acidification, equipment and power for transporting liquid carbon dioxide as it is.
- the present invention has been made to solve the above-mentioned problems, the density difference after discharged at a relatively shallow depth by converting to a high concentration of bicarbonate ions using a method of neutralizing using calcium oxide commonly included in industrial alkaline wastes
- the present invention provides a carbon dioxide enrichment reaction apparatus using magnesium ions in seawater that can be safely sequestered in the deep sea by using and a method for sequestering the carbon dioxide ocean using the same.
- Bicarbonate ion (HCO 3 -) are generated through the reaction can minimize pH changes to act as a buffer solution in an aqueous solution, when injected into the relatively shallow water due to the high concentration of bicarbonate ion-containing water has a density higher than natural sea water It can be easily stored for a long time in the deep sea economically by using density difference without extra energy consumption.
- an alkaline waste including calcium oxide (CaO) or calcium oxide is added to seawater, and the calcium oxide is mixed with magnesium ions present in the seawater.
- the concentration reaction apparatus is a supply unit for supplying calcium oxide; A seawater inlet unit to which the seawater is supplied; A multistage reactor for supplying the calcium oxide and seawater to react the calcium oxide and seawater; A settling tank installed at the end of the multi-stage reaction tank, for precipitating magnesium hydroxide produced from the calcium oxide and seawater; A seawater discharge unit installed at an upper end of the settling tank and discharging the remaining seawater after reacting with the calcium oxide in the seawater; A gas inlet installed at a lower end of the settling tank and supplying carbon dioxide and air to the settling tank so that the carbon dioxide and magnesium hydroxide react to form bicarbonate ions; And a concentrated seawater discharge unit installed in the settling tank and discharging the concentrated seawater containing the bicarbonate ions.
- a front wall of each reaction tank and a front wall of the settling tank are provided with partition walls so that the flow of seawater flows into the lower part and may be discharged to the upper part.
- Each reactor in the multi-stage reaction tank is provided with a stirring device to promote the reaction of the calcium oxide and sea water, and to allow the fine particles of magnesium hydroxide to move to the precipitation tank without sinking.
- the settling tank is a diffuser for dispersing and introducing the carbon dioxide; And, it may include a stirring device for promoting the reaction of the precipitated magnesium hydroxide with carbon dioxide.
- a method for sequestering a carbon dioxide ocean using magnesium ions in seawater is performed by adding an alkaline waste including calcium oxide (CaO) or calcium oxide to the seawater, and the calcium oxide is separated from the magnesium ions present in the seawater.
- an alkaline waste including calcium oxide (CaO) or calcium oxide is added to the seawater, and the calcium oxide is separated from the magnesium ions present in the seawater.
- the ocean discharge step may be performed by directly discharging the concentrated seawater containing the bicarbonate ions to the ocean by a pipeline.
- the carbon dioxide enrichment reaction apparatus using magnesium ions in seawater according to an embodiment of the present invention, and the carbon dioxide ocean sequestration method using the same, enable environmentally friendly long-term sequestration of carbon dioxide, which is a major greenhouse gas.
- the present invention is an eco-friendly carbon dioxide storage method that can be stored while minimizing the disadvantages such as re-emission to the atmosphere, ocean acidification, etc.
- FIG. 1 is a schematic diagram showing a carbon dioxide concentration reaction apparatus using magnesium ions in seawater according to an embodiment of the present invention.
- Figure 2 is a graph showing the pH change during the reaction process and the aeration process after the reaction with calcium oxide, after the reaction of calcium oxide and seawater.
- first, second, etc. are used herein to describe various members, parts, regions, layers, and / or parts, these members, parts, regions, layers, and / or parts are defined by these terms. It is obvious that not. These terms are only used to distinguish one member, part, region, layer or portion from another region, layer or portion. Accordingly, the first member, part, region, layer or portion, which will be described below, may refer to the second member, component, region, layer or portion without departing from the teachings of the present invention.
- FIG. 1 is an example of a reaction system for concentrating carbon dioxide using precipitated magnesium hydroxide after passing a predetermined amount of alkaline waste containing calcium oxide according to an embodiment of the present invention.
- the carbon dioxide concentration reaction apparatus includes a multistage reaction tank 100 and a precipitation tank 110.
- the multi-stage reactor 100 injects seawater through the alkaline waste 120 containing calcium oxide and the seawater inflow line 130 and reacts to produce and precipitate magnesium hydroxide.
- seawater is filled and flows at a constant flow rate, and calcium oxide present in the injected alkaline waste 120 and magnesium ions present at about 50 mM concentration in seawater react as follows. Create and precipitate. That is, due to the difference in solubility between calcium oxide and magnesium hydroxide, the result of precipitation of magnesium hydroxide is obtained.
- calcium oxide can be obtained from alkaline waste as well as various other materials, and the present invention is not limited thereto. Calcium oxide may even be supplied directly to seawater.
- Each reactor 100 may be further equipped with a physical stirring device 140 to facilitate the reaction of the calcium oxide and sea water, accordingly active reaction of calcium oxide and sea water in the reaction tank 100 of each step happenss.
- the magnesium hydroxide produced as a solid is not precipitated in the reaction tank 100 in which the particles are very small in nano units, where stirring takes place, and the reaction proceeds to the next reaction tank 100.
- each reactor size or shape, and the number of the multistage reactors 100 may be adjusted in consideration of the amount of alkaline waste 120 introduced or the precipitation state.
- the total flow rate of the seawater 130 introduced according to the amount of the alkaline waste 120 can be adjusted, and the flow rate can also be adjusted according to the reaction state.
- the introduced seawater 120 flows along the multi-stage reaction tank 100 and finally overflows through the seawater discharge unit 131 with a greater amount of calcium ions than when introduced. That is, the supernatant in seawater is drained.
- the partition wall 101 is installed in the vertical direction so that the flow of the seawater flows in the lower direction and can be discharged in the upper direction. It is supposed to be. Accordingly, the seawater is moored in the multi-stage reaction tank 100 and the precipitation tank 110 for as much time as possible, thereby obtaining as much magnesium hydroxide as possible.
- Precipitation tank 110 is installed at the end of the multi-stage reaction tank (100). Therefore, when the seawater passes through the multi-stage reaction tank 100, it eventually flows into the settling tank 110. In the precipitation tank 110, the produced magnesium hydroxide is present as precipitated magnesium hydroxide 121. At this time, while the precipitated magnesium hydroxide 121 is generated, the settling tank agitator 150 is not operated. That is, the stirring apparatus 150 is also installed in the precipitation tank 110, but the stirring apparatus 150 does not operate until a predetermined amount or more of the precipitated magnesium hydroxide 121 is obtained.
- the diffuser 161 Thereafter, a high concentration of carbon dioxide or exhaust gas containing carbon dioxide is supplied to the diffuser 161 through the gas inlet line 160, and the droplet size of the exhaust gas is again reduced through the diffuser 161 to flow into the settling tank 110. Let's do it.
- the gas inlet line 160 and the diffuser 161 is installed in the lower portion of the settling tank 110. That is, the diffuser 161 is located approximately in the bottom layer of seawater in the settling tank 110.
- the pH at this time is less than 7.4 due to excessive dissolution of carbon dioxide than the pH of the amount of magnesium hydroxide, but after all the reaction with carbon dioxide and aeration through the gas inlet line 160 and diffuser 161 to the bicarbonate acid At the same time as the ions are in equilibrium, the pH is restored to 8.0 or more.
- the bottom of the sedimentation tank 110 that is, the final sea water discharge unit 132 is installed between the sea water discharge unit 131 and the carbon dioxide / air inlet line 160, through which the bicarbonate ion Concentrated seawater is discharged to the ocean. That is, concentrated seawater containing bicarbonate ions is discharged directly to the ocean by a pipeline.
- Figure 2 shows the change in pH during the reaction process and the aeration process after the reaction with calcium oxide contained in the alkaline waste 120 and seawater.
- X axis is time and Y axis is pH.
- the total inorganic carbon concentration in seawater changes to about 2 mM during the reaction of calcium oxide and seawater, about 200 mM during the carbon dioxide reaction, and about 120 mM after aeration.
- the main factor affecting the concentration ratio of carbonate species is the pH of the final reaction seawater, which is in the range of about 8.0 to 8.2, and within this range HCO 3 - ions account for more than 95% of the total carbonate concentration. It can be said to be stable.
- CO 2 re-emission can be minimized by contact with the air and sea water on the sea surface. At this time, it was confirmed that the content of bicarbonate ion is about 60 times higher than that of natural seawater.
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Abstract
Description
Claims (7)
- 해수에 산화칼슘(CaO) 또는 산화칼슘을 포함하는 알칼리성 폐기물을 투입하여, 상기 산화칼슘이 상기 해수 중 존재하는 마그네슘 이온과 반응하여 수산화마그네슘(Mg(OH)2)을 형성하고 침전되도록 하며, 상기 수산화마그네슘의 침전 후 상기 해수의 상층액은 제거하고 상기 수산화마그네슘을 포함하는 상기 해수의 하층액과 이산화탄소를 반응시켜 자연 상태보다 상대적으로 높은 농도의 중탄산 이온(HCO3 -)을 포함하는 농축해수로 변환함을 특징으로 하는 해수 중 마그네슘 이온을 이용한 이산화탄소 농축반응장치.
- 제1항에 있어서,상기 농축반응장치는산화칼슘 또는 산화칼슘이 포함된 알칼리성 폐기물이 공급되는 공급부;상기 해수가 공급되는 해수유입부;상기 산화칼슘과 해수가 공급되어 상기 산화칼슘과 해수가 반응하도록 하는 다단계 반응조;상기 다단계 반응조의 끝단에 설치되고, 상기 산화칼슘과 해수로부터 생성된 수산화마그네슘을 침전하는 침전조;상기 침전조의 상단에 설치되고, 상기 해수 중 상기 산화칼슘과 반응하고 남은 해수를 배출하는 해수배출부;상기 침전조의 하단에 설치되고, 상기 침전조에 이산화탄소 및 에어를 공급하여, 상기 이산화탄소와 수산화마그네슘이 반응하여 중탄산 이온을 형성하도록 하는 가스유입부; 및,상기 침전조에 설치되고, 상기 중탄산 이온을 포함하는 농축해수를 배출하는 농축해수배출부를 포함함을 특징으로 하는 해수 중 마그네슘 이온을 이용한 이산화탄소 농축반응장치.
- 제2항에 있어서,상기 다단계 반응조 중 각 반응조의 전단과, 상기 침전조의 전단에는 격벽이 설치되어 상기 해수의 흐름이 바닥으로 유입되어 상부로 배출되는 것을 특징으로 하는 해수 중 마그네슘 이온을 이용한 이산화탄소 농축반응장치.
- 제2항에 있어서,상기 다단계 반응조 중 각 반응조에는 교반장치가 설치되어 상기 산화칼슘과 해수의 반응을 촉진하며, 수산화마그네슘의 미립자가 가라앉지 않고 침전조까지 이동할 수 있도록 함을 특징으로 하는 해수 중 마그네슘 이온을 이용한 이산화탄소 농축반응장치.
- 제2항에 있어서,상기 침전조는 상기 이산화탄소를 분산하여 유입시키는 디퓨저; 및,상기 이산화탄소와 침전된 수산화마그네슘의 반응을 촉진하는 교반장치를 포함함을 특징으로 하는 해수 중 마그네슘 이온을 이용한 이산화탄소 농축반응장치.
- 해수에 산화칼슘(CaO) 또는 산화칼슘을 포함하는 알칼리성 폐기물을 투입하여, 상기 산화칼슘이 상기 해수 중 존재하는 마그네슘 이온과 반응하여 수산화마그네슘(Mg(OH)2)을 형성하고 침전되도록 하는 단계;상기 수산화마그네슘의 침전 후 상기 해수의 상층액은 제거하고 상기 해수의 하층액과 이산화탄소를 반응시켜 자연 상태보다 상대적으로 높은 농도의 중탄산 이온(HCO3 -)을 포함하는 농축해수를 형성하는 단계;상기 농축해수에 에어를 공급하여 상기 해수 중 중탄산 이온이 대기와 접촉하여 변화하지 않고 안정적으로 존재하도록 하는 단계; 및pH가 자연 해수와 같은 8.0~8.2 범위의 상기 농축해수를 해양에 방류하는 단계를 포함함을 특징으로 하는 해수 중 마그네슘 이온을 이용한 이산화탄소 해양격리방법.
- 제6항에 있어서,상기 해양 방류 단계는 상기 중탄산 이온을 포함하는 농축해수를 파이프 라인으로 직접 해양에 배출하여 이루어짐을 특징으로 하는 해수 중 마그네슘 이온을 이용한 이산화탄소 해양격리방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/412,636 US9688558B2 (en) | 2012-07-13 | 2012-08-14 | Apparatus for concentration reaction of carbon dioxide using magnesium ions in seawater, and method for sequestrating carbon dioxide in ocean using same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0076864 | 2012-07-13 | ||
| KR1020120076864A KR101396717B1 (ko) | 2012-07-13 | 2012-07-13 | 해수 중 마그네슘 이온을 이용한 이산화탄소 농축반응장치 및 이를 이용한 이산화탄소 해양격리방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014010776A1 true WO2014010776A1 (ko) | 2014-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2012/006487 Ceased WO2014010776A1 (ko) | 2012-07-13 | 2012-08-14 | 해수 중 마그네슘 이온을 이용한 이산화탄소 농축반응장치 및 이를 이용한 이산화탄소 해양격리방법 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9688558B2 (ko) |
| KR (1) | KR101396717B1 (ko) |
| WO (1) | WO2014010776A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016032321A1 (en) * | 2014-08-29 | 2016-03-03 | Industriewater Eerbeek B.V. | Method and apparatus for decalcifying effluent of a water treatment |
| WO2020028175A1 (en) * | 2018-07-30 | 2020-02-06 | Lixivia, Inc. | Compositions and methods for controlling ph in metal floatation processes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101499139B1 (ko) * | 2014-07-18 | 2015-03-06 | 주식회사 나노텍세라믹스 | 탄산염의 연속 제조방법 |
| KR20160017232A (ko) | 2014-08-01 | 2016-02-16 | 한국전력공사 | 이산화탄소 농축 이송 장치 |
| US9724639B2 (en) | 2015-08-18 | 2017-08-08 | United Arab Emirates University | System for contacting gases and liquids |
| US10118843B2 (en) * | 2015-08-18 | 2018-11-06 | United Arab Emirates University | Process for capture of carbon dioxide and desalination |
| CN106076066A (zh) * | 2016-06-11 | 2016-11-09 | 彭斯干 | 海水式碳捕集封存方法及装置 |
| CN114053969B (zh) * | 2021-11-15 | 2022-06-28 | 清华大学深圳国际研究生院 | 二氧化碳水合物封存实验装置及二氧化碳封存量计算方法 |
| US20250303359A1 (en) * | 2022-02-25 | 2025-10-02 | Negative Emissions Materials, Inc. | Compounds and methods for safe mitigation of ocean acidification and capture of atmospheric carbon dioxide |
| CN115487660B (zh) * | 2022-11-01 | 2023-10-17 | 浙江海暨核生科技有限公司 | 利用海水进行碳中和的方法、装置 |
| KR20240088243A (ko) * | 2022-12-13 | 2024-06-20 | 포스코홀딩스 주식회사 | 염수 내 마그네슘 제거방법 |
| WO2025208034A1 (en) * | 2024-03-29 | 2025-10-02 | Unm Rainforest Innovations | System and method for sequestering a gaseous compound |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009000051A1 (en) * | 2007-06-28 | 2008-12-31 | Brinemag Pty Ltd | Process for the recovery of magnesium from a solution and pretreatment |
| JP2010132504A (ja) * | 2008-12-05 | 2010-06-17 | Nittetsu Mining Co Ltd | 高純度炭酸マグネシウムの製造方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370307A (en) * | 1980-02-29 | 1983-01-25 | Martin Marietta Corporation | Preparation of pure magnesian values |
| KR100995699B1 (ko) | 2008-06-03 | 2010-11-19 | 한국지질자원연구원 | 제철슬래그를 이용한 이산화탄소 고정장치 |
| KR100944539B1 (ko) | 2009-12-30 | 2010-03-03 | (주) 오씨아드 | 알카리화된 해수를 이용한 연소배출가스 중 이산화탄소 제거 방법 및 장치 |
| KR20130037803A (ko) * | 2011-10-07 | 2013-04-17 | 한국전력공사 | 이산화탄소 해양저장을 위한 관형 흐름 변환 농축 반응기 |
-
2012
- 2012-07-13 KR KR1020120076864A patent/KR101396717B1/ko active Active
- 2012-08-14 US US14/412,636 patent/US9688558B2/en not_active Expired - Fee Related
- 2012-08-14 WO PCT/KR2012/006487 patent/WO2014010776A1/ko not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009000051A1 (en) * | 2007-06-28 | 2008-12-31 | Brinemag Pty Ltd | Process for the recovery of magnesium from a solution and pretreatment |
| JP2010132504A (ja) * | 2008-12-05 | 2010-06-17 | Nittetsu Mining Co Ltd | 高純度炭酸マグネシウムの製造方法 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016032321A1 (en) * | 2014-08-29 | 2016-03-03 | Industriewater Eerbeek B.V. | Method and apparatus for decalcifying effluent of a water treatment |
| WO2020028175A1 (en) * | 2018-07-30 | 2020-02-06 | Lixivia, Inc. | Compositions and methods for controlling ph in metal floatation processes |
Also Published As
| Publication number | Publication date |
|---|---|
| US9688558B2 (en) | 2017-06-27 |
| KR20140009871A (ko) | 2014-01-23 |
| US20150191385A1 (en) | 2015-07-09 |
| KR101396717B1 (ko) | 2014-05-16 |
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