Tuning critical solution temperature for CO2 capture by aqueous solution of amine
نویسندگان
چکیده
Aqueous solution of amine is a mature technology to selectively absorb CO2 from an industrial exhaust. Monoethanolamine (MEA) still considered as the reference and unfortunately, energy necessary desorb recycle solvent limiting its use at scale. The main cost process needed heat over 100 °C CO2. Several options decrease this expense have been including phase separation reduce volumes be treated. It was then proposed aqueous exhibiting lower critical temperature (LCST) adequate temperature. However, it challenging found able large quantity having LCST suitable Deep eutectic (DES) composed oleic acid (hydrophobic) lidocaine (amphiphilic) can separated water with either or stimuli. This DES has used adjust after sorption in demixing amine. By only changing ratio two components DES, tuned around 30 70 °C. addition into could substantially help adapt require conditions capture process.
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ژورنال
عنوان ژورنال: Journal of Molecular Liquids
سال: 2021
ISSN: ['0167-7322', '1873-3166']
DOI: https://doi.org/10.1016/j.molliq.2021.117628