• Plant Journal
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• v.13 no.2
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• pp.34-38
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• 2017

To reduce global warming, there are so many studies, investments and efforts. The Post Combustion $CO_2$ Capture technology is one of these efforts. But the technologies are having trouble with reducing operating prices. And CCS technology which is using amine solvent uses high price amine solvent. There is solvent losses naturally when operating plant. The solvent loss makes operating and maintenance price higher. In this study, how the washing column of treated flue gas affects the losses of amine solvent and operating was studied.

• Korean Chemical Engineering Research
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• v.61 no.4
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• pp.619-626
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• 2023

Primary and secondary amine-based sorbents were synthesized to investigate the operation capacity for the carbon dioxide separation TSA process. (3-Aminopropyl) triethoxysilane was used as a primary amine precursor as a crosslinking agent to synthesize a secondary amine precursor in which amine groups were crosslinked with a crosslinking agent. Carbon dioxide absorbed by primary amines is completely separated above 170 ℃. The working capacity of the primary amine absorbent was less than 2% when regenerated at 130℃. The secondary amine absorbent has a higher carbon dioxide separation capacity at a lower regeneration temperature than the primary amine absorbent. The secondary amine absorbent could predict process operation performance of about 6.5% with 2% carbon dioxide absorption and 100% carbon dioxide regeneration conditions. Therefore, it was found that the working capacity of the secondary amine absorbent was higher than that of the primary amine.

• Korean Chemical Engineering Research
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• v.48 no.2
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• pp.140-146
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• 2010

This paper addresses recent status and trends of carbon dioxide capture technologies using dry sorbents in the flue gas. The advantages of dry sorbent $CO_2$ capture technology are broader operating temperature range, less energy loss, less waste water, less corrosion problem, and natural properties of solid wastes. Recently, U.S.A. and Korea have been developing processes capturing $CO_2$ from real coal flue gas as well as sorbents improving sorption capacity to decrease total $CO_2$ capture cost. New class of dry sorbents have been developed such as chemisorbents with alkali metals of which material cost is low, amines physically adsorbed on silica supports, amines covalently tethered to the silica support, carbon-supported amines, polymer-supported amines, amine-containing solid organic resins and metal-organic framework. The breakthrough is needed in the materials on dry sorbents to decrease capture cost.

• Korean Chemical Engineering Research
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• v.50 no.2
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• pp.348-352
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• 2012

Amine volatility occurring on the $CO_2$ capture process may result in significant economic losses and environmental impact. In this study, using an volatility measurement apparatus, we measured a amine volatility of various amines including MEA(Monoethanolamine), MDEA(N-Methyldiethanolamine), Pz(Piperazine), AMP(2-Amino-2-methyl-1-propanol), 2-MP(2-Methylpiperazine), DGA(Diglycolamine). For the quantitative analysis of volatility, we analyzed the effects of temperature and $CO_2$ loading using an gas chromatography analysis. The result shows that the amine volatility was increased by increasing Henry's constant(MDEA$-CH_3$)(for AMP).

• Proceedings of the KAIS Fall Conference
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• 2011.05a
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• pp.314-316
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• 2011

지구온난화에 가장 큰 원인인 이산화탄소를 제거하기 위한 많은 공정들이 연구 개발되고 있다. 이러한 공정 중 아민과 암모니아로 대표되는 흡수공정이 가장 빠르게 상용화 될 것으로 예측되고 있다. 그러나 이러한 공정은 흡수제 손실, 열화, 높은 재생에너지 등 여러 문제점으로 인하여 많은 장치비와 높은 운영비가 소요되므로 경제적인 새로운 공정 개발이 필요하다. 현재 연구되는 있는 혁신적인 많은 이산화탄소 포집 기술 중 효소를 이용한 생물학적 공정이 기술개발에 많은 기간을 필요로 하나 기술이 개발될 경우 가장 비용효과적인 기술로 인식되고 있다. 본 논문에서는 효소를 이용한 이산화탄소 포집기술 개발의 장단점에 대하여 기술하였다.