Development of Slurry Bubble Column with Lithium Silicate to Recover Hot CO2 Gas from Flue Gas
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概要
- 論文の詳細を見る
To reduce the release of greenhouse gas from massive emission sources into atmosphere, a slurry bubble column suspending lithium silicate is proposed to remove hot CO2 from flue gas or pre-combustion effluent gas. As the liquid phase, the molten salt consisting of binary carbonates was used. The slurry suspending solid particles of lithium silicate in the molten salt promoted to mix gas and slurry in the column so that the absorption rate of CO2 was improved. In this study, the effects of some important operating conditions such as superficial flue gas velocity, the concentration of lithium silicate powder in the slurry and the height of the slurry on CO2 absorption were investigated to optimize the system. The CO2 absorption increased with increasing superficial gas velocity and decreasing slurry concentration. Fractional CO2 recovery increased with increasing the height of the slurry. The apparent rate constant and the apparent activation energy were determined in the reaction system. Moreover, an endurance test was conducted to confirm stable recovery capacity, in which the proposed CO2 recovering system performance was repeatedly maintained.
- The Society of Chemical Engineers, Japanの論文
著者
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Terasaka Koichi
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
-
Fujioka Satoko
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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Kobayashi Daisuke
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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Kanai Yugo
School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University
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Suwabe Masato
School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University
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