Studies on surface tension of 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU)-glycerol and CO2-DBU-glycerol solutions at temperatures from 288.1 K to 323.1 K

Liu, Yingying; Lin, Si Jian; Lu, Houfang; Liu, Changjun; Wu, Kejing; Liang, Bin

doi:10.1016/j.jct.2018.05.013

Cited by 6 publications

(1 citation statement)

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“…Compared with 1-propanol and 1-hexanol, , higher boiling points of DBU and glycerol than 1-propanol (97 °C) and 1-hexanol (157 °C) are preferred due to less evaporation of solvent. The physicochemical properties, such as the density, viscosity, conductivity, and surface tension, as well as the CO 2 solubility of the resultant DBU-glycerol solution have been well investigated. − This work focused on the performance of DBU-glycerol solvent in CO 2 absorption and desorption processes. The effect of solvent composition, operation temperature, and the cyclic absorption–desorption performance of the DBU-glycerol solvent were systemically investigated.…”

Section: Introductionmentioning

confidence: 99%

DBU-Glycerol Solution: A CO₂ Absorbent with High Desorption Ratio and Low Regeneration Energy

Zhu

et al. 2020

Environ. Sci. Technol.

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1,.0]-undec-7-ene (DBU)-glycerol solution is employed as a promising CO 2 absorbent. The regeneration of the CO 2 -loaded solution is of vital importance for its commercialization. It was investigated and compared with 30 wt % monoethanolamine (MEA). Variables affecting the absorption and desorption processes were studied, including the solvent composition, reaction temperature, and agitation. It shows that the absorption capacity for DBU-glycerol is comparable with 30 wt % MEA, and the desorption ratio for CO 2 -loaded DBU-glycerol mixture can reach as high as 95% in 60 min, 363 K at the 3:1 molar ratio of DBU to glycerol, while it is only 68% even after 165 min for CO 2 -saturated 30 wt % MEA. DBU-glycerol solution has higher cycling CO 2 loading than 30 wt % MEA. Its cyclic capacity could keep above 90% after 10 cycles of absorption−desorption experiments. The desorption reaction is irreversible at the initial stage, and the reaction rate is expected as a first-order reaction from 349 to 377 K, and the apparent activation energy is 68.94 kJ/mol. Moreover, the heat duty of the reboiler during regeneration is estimated to be reduced by about 27% when compared with 30 wt % MEA.

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Section: Introductionmentioning

confidence: 99%

DBU-Glycerol Solution: A CO₂ Absorbent with High Desorption Ratio and Low Regeneration Energy

Zhu

et al. 2020

Environ. Sci. Technol.

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Insights into the relationships between physicochemical properties, solvent performance, and applications of deep eutectic solvents

Zhang

Liu

et al. 2021

Environ Sci Pollut Res

111

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CO2 absorption performance in a rotating disk reactor using DBU-glycerol as solvent

Duan

Zhu

et al. 2020

Chinese Journal of Chemical Engineering

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Studies on surface tension of 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU)-glycerol and CO2-DBU-glycerol solutions at temperatures from 288.1 K to 323.1 K

Cited by 6 publications

References 48 publications

DBU-Glycerol Solution: A CO₂ Absorbent with High Desorption Ratio and Low Regeneration Energy

DBU-Glycerol Solution: A CO₂ Absorbent with High Desorption Ratio and Low Regeneration Energy

Insights into the relationships between physicochemical properties, solvent performance, and applications of deep eutectic solvents

CO2 absorption performance in a rotating disk reactor using DBU-glycerol as solvent

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Studies on surface tension of 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU)-glycerol and CO2-DBU-glycerol solutions at temperatures from 288.1 K to 323.1 K

Cited by 6 publications

References 48 publications

DBU-Glycerol Solution: A CO2 Absorbent with High Desorption Ratio and Low Regeneration Energy

DBU-Glycerol Solution: A CO2 Absorbent with High Desorption Ratio and Low Regeneration Energy

Insights into the relationships between physicochemical properties, solvent performance, and applications of deep eutectic solvents

CO2 absorption performance in a rotating disk reactor using DBU-glycerol as solvent

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Product

Resources

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Studies on surface tension of 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU)-glycerol and CO2-DBU-glycerol solutions at temperatures from 288.1 K to 323.1 K

DBU-Glycerol Solution: A CO₂ Absorbent with High Desorption Ratio and Low Regeneration Energy

DBU-Glycerol Solution: A CO₂ Absorbent with High Desorption Ratio and Low Regeneration Energy