.png){kind=icon}
.png){kind=icon}
Return
CO2 Capture mechanism of [DBUH][Im] under humid conditions
.png){kind=icon}
OA
AI
D
H
H
E
B
J
DOI：10.1016/j.jil.2025.100179.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
This work reports on the CO2 absorption properties of the superbase derived protic ionic liquid (PIL) made from 1,8-diazabicyclo(5.4.0)undec-7-ene (DBU) and imidazole (Im). The results show distinct absorption mechanisms under dry and humid conditions. Under dry conditions, CO2 capture results in formation of a carbamate with the imidazolate anion and the base IL can be regenerated at relatively low temperatures, below 100 degrees C. In contrast, under humid conditions, CO2 is initially absorbed forming bicarbonate, [HCO3]-, which induces solidification and inhibits CO2 desorption below ca. 95 C, however successive absorption/desorption cycles can be achieved using a temperature swing between 95 and 160 degrees C where the bound CO2 cycles between bicarbonate and carbonate.
Keywords:
Carbon dioxide
Protic ionic liquid
Carbonate
Bicarbonate
Humid conditions
High temperature absorption
Flue gas
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
J
IF:
0
Papers:
18
Citations:
0
Organization
Cited Papers