Energy recoverable multi-stage dry sorbent CO2 capture process

Yong Ki Park, Hwimin Seo, Won Choon Choi, Na Young Kang, Sunyoung Park, Da Young Min, Kiwoong Kim, Kwang Soon Lee, Ho Kyu Moon, Hyung Hee Cho, Deuk Ki Lee

Research output: Contribution to journalConference article

15 Citations (Scopus)

Abstract

To reduce the energy required for CO2 desorption, an energy exchangeable three-stage dry sorbent CO2 capture process was designed and in the step of efficiency evaluation. The process is composed of three stages working at different sorptiondesorption temperatures to utilize the heat released at higher temperature absorption cycles for the regeneration of sorbent working at lower temperature cycles; low-, medium- And high-temperature stages. For this process three kinds of sorbents having different sorption-desorption temperatures were developed; amines supported on silica (low temperature), alkali-promoted MgO (medium temperature) and Li4SiO4 (high temperature). Based on the kinetic properties of these three types of sorbents, several process models were simulated and it was found that dilute-dilute sorption-desorption process is the most efficient. According to the simulation, the thermal energy demand for the three-stage CO2 capture process was 1.68 GJ/ton-CO2, which means about 60% of the thermal energy required for a single-stage dry sorbent process can be saved. To evaluate this concept, real facility which can treat 60 Nm3/hr exhaust gas was constructed and in the step of operation.

Original languageEnglish
Pages (from-to)2266-2279
Number of pages14
JournalEnergy Procedia
Volume63
DOIs
Publication statusPublished - 2014 Jan 1
Event12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 - Austin, United States
Duration: 2014 Oct 52014 Oct 9

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Sorbents
Desorption
Temperature
Thermal energy
Sorption
Exhaust gases
Amines
Silica
Kinetics

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

Park, Y. K., Seo, H., Choi, W. C., Kang, N. Y., Park, S., Min, D. Y., ... Lee, D. K. (2014). Energy recoverable multi-stage dry sorbent CO2 capture process. Energy Procedia, 63, 2266-2279. https://doi.org/10.1016/j.egypro.2014.11.246
Park, Yong Ki ; Seo, Hwimin ; Choi, Won Choon ; Kang, Na Young ; Park, Sunyoung ; Min, Da Young ; Kim, Kiwoong ; Lee, Kwang Soon ; Moon, Ho Kyu ; Cho, Hyung Hee ; Lee, Deuk Ki. / Energy recoverable multi-stage dry sorbent CO2 capture process. In: Energy Procedia. 2014 ; Vol. 63. pp. 2266-2279.
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Park, YK, Seo, H, Choi, WC, Kang, NY, Park, S, Min, DY, Kim, K, Lee, KS, Moon, HK, Cho, HH & Lee, DK 2014, 'Energy recoverable multi-stage dry sorbent CO2 capture process', Energy Procedia, vol. 63, pp. 2266-2279. https://doi.org/10.1016/j.egypro.2014.11.246

Energy recoverable multi-stage dry sorbent CO2 capture process. / Park, Yong Ki; Seo, Hwimin; Choi, Won Choon; Kang, Na Young; Park, Sunyoung; Min, Da Young; Kim, Kiwoong; Lee, Kwang Soon; Moon, Ho Kyu; Cho, Hyung Hee; Lee, Deuk Ki.

In: Energy Procedia, Vol. 63, 01.01.2014, p. 2266-2279.

Research output: Contribution to journalConference article

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T1 - Energy recoverable multi-stage dry sorbent CO2 capture process

AU - Park, Yong Ki

AU - Seo, Hwimin

AU - Choi, Won Choon

AU - Kang, Na Young

AU - Park, Sunyoung

AU - Min, Da Young

AU - Kim, Kiwoong

AU - Lee, Kwang Soon

AU - Moon, Ho Kyu

AU - Cho, Hyung Hee

AU - Lee, Deuk Ki

PY - 2014/1/1

Y1 - 2014/1/1

N2 - To reduce the energy required for CO2 desorption, an energy exchangeable three-stage dry sorbent CO2 capture process was designed and in the step of efficiency evaluation. The process is composed of three stages working at different sorptiondesorption temperatures to utilize the heat released at higher temperature absorption cycles for the regeneration of sorbent working at lower temperature cycles; low-, medium- And high-temperature stages. For this process three kinds of sorbents having different sorption-desorption temperatures were developed; amines supported on silica (low temperature), alkali-promoted MgO (medium temperature) and Li4SiO4 (high temperature). Based on the kinetic properties of these three types of sorbents, several process models were simulated and it was found that dilute-dilute sorption-desorption process is the most efficient. According to the simulation, the thermal energy demand for the three-stage CO2 capture process was 1.68 GJ/ton-CO2, which means about 60% of the thermal energy required for a single-stage dry sorbent process can be saved. To evaluate this concept, real facility which can treat 60 Nm3/hr exhaust gas was constructed and in the step of operation.

AB - To reduce the energy required for CO2 desorption, an energy exchangeable three-stage dry sorbent CO2 capture process was designed and in the step of efficiency evaluation. The process is composed of three stages working at different sorptiondesorption temperatures to utilize the heat released at higher temperature absorption cycles for the regeneration of sorbent working at lower temperature cycles; low-, medium- And high-temperature stages. For this process three kinds of sorbents having different sorption-desorption temperatures were developed; amines supported on silica (low temperature), alkali-promoted MgO (medium temperature) and Li4SiO4 (high temperature). Based on the kinetic properties of these three types of sorbents, several process models were simulated and it was found that dilute-dilute sorption-desorption process is the most efficient. According to the simulation, the thermal energy demand for the three-stage CO2 capture process was 1.68 GJ/ton-CO2, which means about 60% of the thermal energy required for a single-stage dry sorbent process can be saved. To evaluate this concept, real facility which can treat 60 Nm3/hr exhaust gas was constructed and in the step of operation.

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DO - 10.1016/j.egypro.2014.11.246

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JO - Energy Procedia

JF - Energy Procedia

SN - 1876-6102

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Park YK, Seo H, Choi WC, Kang NY, Park S, Min DY et al. Energy recoverable multi-stage dry sorbent CO2 capture process. Energy Procedia. 2014 Jan 1;63:2266-2279. https://doi.org/10.1016/j.egypro.2014.11.246