*2.6.2.3. Lipophilic-amine-based thermomorphic biphasic solvents*

Lipophilic-amine-based thermomorphic biphasic solvents have shown potential advantages in CO2 capture compared to conventional alkanolamines in terms of solvent regeneration and cyclic capacity. The improvements obtained using these types of solvent are based on its thermomorphic behavior. This phenomenon consists of the generation of two liquid phases after heating inside the reboiler. According to Zhang et al. [52], these systems can be regenerated at lower temperatures than the conventional alkanolamine blends. This temperature reduction in regeneration step allows a decrease of the energetic consumption in CO2 capture processes. Amine blends used by Zhang were mostly composed of an absorption activator: A1, dipropylamine (DPA) and a regeneration promoter: N, N-dimethylciclohexylamine (DMCA) and N-ethylpiperidine (EDP) (**Table 7**).
