Sk Innovation Co., Ltd.

Junga Lee

Jisu Jeong

Ilgu Jung

Lim Ok Pyun

Byul Ha Na Min

Provided is a carbon dioxide absorbent including an ionic liquid including an imidazole-based anion and an aliphatic alcohol. Since an alcohol solvent included in the carbon dioxide absorbent according to one embodiment has low toxicity and a very high boiling point, the carbon dioxide absorbent has no problem of release into the atmosphere and consequent environmental pollution, and is chemically stable to significantly lower the possibility of release of decomposition products into the atmosphere. In addition, the carbon dioxide absorbent is also effective, since it may absorb carbon dioxide with a higher equivalent than an absorbent input equivalent, and has low regeneration energy so that carbon dioxide is easily desorbed.

Carbon dioxide absorbent comprising ionic liquid and alcohol solvent, and method of separating carbon dioxide using the same

Provided are a carbon dioxide absorbent including an ionic liquid including a choline-based cation and a phenolate-based anion, and an aliphatic alcohol, and a method of separating carbon dioxide using the same. Since the carbon dioxide absorbent of the present disclosure is thermally and chemically stable, it may decrease by-products released into the atmosphere and thus, is environmentally friendly. The method of separating carbon dioxide using the absorbent is an economical method which allows energy saving with low renewable energy.

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Daejeon, South Korea

Junga Lee