Carbon dioxide sequestration by mines: implications for climate change

Punia, Anita

doi:10.1007/s10584-021-03038-8

Cited by 11 publications

(3 citation statements)

References 125 publications

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“…기술은 이산화탄소를 특정 금속 성분 또는 금속화합물과 반응시켜 열역학적으로 안정한 탄산염 형태로 변환하는 기술이다 4) . 이 기술은 직접적인 이산화탄소 감축 효과를 수반하기 때문에 다양한 분야에 적용 가능한 이산화탄소 감축수단으로 많은 연구가 진행되고 있다 [5][6][7] . 특히 탄소 광물화 기술은 탄산화가 가능한 무기성 산업부산물에 적 용 시 대량의 산업부산물과 이산화탄소를 동시에 처리할 수 있어서, 대량의 석탄재와 이산화탄소를 발생시키는 화 력발전소에서는 이와 관련된 연구가 활발히 진행되고 있 다 [8][9][10] .…”

Section: Ccu 기술 중 하나인 탄소광물화(Carbon Mineralization)unclassified

Greenhouse Gas Emission Reduction and Economic Benefit Evaluation of Carbon Mineralization Technology using CFBC Ash

Jung

Kim²

2022

Resour. Recycl.

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This study analyzed the amount of carbon dioxide reduction and economic benefits of detailed processes of CO 2 6,000 tons plant facilities with mineral carbonation technology using carbon dioxide and coal materials emitted from domestic circulating fluidized bed combustion power plants. Coal ash reacted with carbon dioxide through carbon mineralization facilities is produced as a complex carbonate and used as a construction material, accompanied by a greenhouse gas reduction. In addition, it is possible to generate profits from the sales of complex carbonates and carbon credits produced in the process. The actual carbon dioxide reduction per ton of complex carbonate production was calculated as 45.8 kgCO 2 eq, and the annual carbon dioxide reduction was calculated as 805.3 tonCO 2 , and the benefit-cost ratio (B/C Ratio) is 1.04, the internal rate return (IRR) is 10.65 % and the net present value (NPV) is KRW 24,713,465 won, which is considered economical. Carbon mineralization technology is one of the best solutions to reduce carbon dioxide considering future carbon dioxide reduction and economic potential.

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Section: Ccu 기술 중 하나인 탄소광물화(Carbon Mineralization)unclassified

Greenhouse Gas Emission Reduction and Economic Benefit Evaluation of Carbon Mineralization Technology using CFBC Ash

Jung

Kim²

2022

Resour. Recycl.

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“…One of the most important environmental problems of our day is climate change, which is brought on by greenhouse gas emissions, especially carbon dioxide emissions. Carbon dioxide (CO 2 ) plays a significant role in global climate change (Ali et al, 2020;Punia, 2021;Zhong & Haigh, 2013). Plants absorb CO 2 through photosynthesis, which is a vital process that helps to regulate atmospheric CO 2 levels.…”

Section: Introductionmentioning

confidence: 99%

Application of Remote Sensing for Monitoring Carbon Farming: A Review

Metrikaitytė Gudelė,

Sužiedelytė Visockienė

2023

Science - Future of Lithuania

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This research article presents an overview of the role of carbon farming in mitigating climate change by sequestering carbon in soil and vegetation. The article highlights the potential of remote sensing technology for monitoring carbon farming practices and CO2 absorption. Carbon farming practices, such as conservation tillage, cover cropping, crop rotation, and agroforestry, are discussed. The article explains the application of remote sensing technology, including satellite-based remote sensing, aerial photography, and ground-based sensors, in monitoring changes in carbon sequestration and CO2 absorption. The article concludes that remote sensing technology provides a powerful tool for monitoring carbon farming and CO2 absorption and is likely to become even more effective in the future as technology continues to advance.

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“…[1] As with many other elements in nature, carbon species are related among them by a natural cycle, which can be represented as a circle where the amount of carbon represents the diameter of the circle and it is related to average temperature of Earth. [2] Because of the massive extraction during the last centuries of fossil fuels and raw matters (carbon first, then petrol and more recently natural gas), the concentration of CO 2 has increased very importantly and the circle has become a spiral with an increasing diameter, which reflects on an increase in the temperature of the lower levels of atmosphere, for which the only reasonable solution is to do what Nature did many time ago: 1) stop the carbon extraction to allow temperature to be kept in the present values [3] or 2) burying again carbon [4] to reverse the increasing of temperature by reverting the trend of the increasingdiameter spiral down to a decreasing spiral There are many ways in which Electrochemistry can contribute to minimize the carbon fingerprint of processes. Electrochemistry is concerned with the change of the oxidation state of species [5] and many researchers are looking for the possibility of avoiding the need of carbon extraction by decreasing the oxidation state of carbon in CO 2 from its very stable oxidation state of + 4 down to other values in which carbon can be used again as a fuel or in synthesis as a new reformatted bricks.…”

Section: Introductionmentioning

confidence: 99%

Towards the Electrochemical Retention of CO₂: Is it Worth it?

Carvela¹,

Mena²,

Raschitor³

et al. 2021

ChemElectroChem

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This work focuses on the use of NaOH produced cathodically by reduction of water to retain gaseous CO 2 in a combined electrolyzer-absorber device. The process deals with two relevant environmental concerns: desalination and carbon sequestering, using only electricity and heat, which can be provided using green sources. Results demonstrate that technology is feasible, and the composition of the final product depends on the operation conditions applied. Removal rates of 130 mmol CO 2 /h were obtained at 7.5 A with coulombic efficiency in the removal of CO 2 of 47.63 %. Efficiency in the production of chlorine, hydrogen and NaOH decreases at large current densities because of the promotion in the oxidation of water and the promoted transport of protons from the anodic to the cathodic compartment of the cell. Low current densities should be used to promote the formation of NaHCO 3 and avoid scaling problems (formation of deposits of Na 2 CO 3 ) in the spray column. The use of heated air to evaporate the product of the absorption column produces evaporated water with higher quality (in terms of lower conductivity) from the product of the absorption column.

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Carbon dioxide sequestration by mines: implications for climate change

Cited by 11 publications

References 125 publications

Greenhouse Gas Emission Reduction and Economic Benefit Evaluation of Carbon Mineralization Technology using CFBC Ash

Greenhouse Gas Emission Reduction and Economic Benefit Evaluation of Carbon Mineralization Technology using CFBC Ash

Application of Remote Sensing for Monitoring Carbon Farming: A Review

Towards the Electrochemical Retention of CO₂: Is it Worth it?

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Carbon dioxide sequestration by mines: implications for climate change

Cited by 11 publications

References 125 publications

Greenhouse Gas Emission Reduction and Economic Benefit Evaluation of Carbon Mineralization Technology using CFBC Ash

Greenhouse Gas Emission Reduction and Economic Benefit Evaluation of Carbon Mineralization Technology using CFBC Ash

Application of Remote Sensing for Monitoring Carbon Farming: A Review

Towards the Electrochemical Retention of CO2: Is it Worth it?

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Towards the Electrochemical Retention of CO₂: Is it Worth it?