Experimental investigation on post-combustion CO2 capture for [Bpy][NO3] and MEA aqueous blends with lower regeneration energy

•Low energy consumption post-combustion CO2 capture with ionic liquid blending solvents.•30 wt% MEA + 10 wt% [Bpy][NO3] shown the better CO2 capture performance than alkanolamines aqueous solution.•The experimental measured regeneration energy of IL blends is 34.2% lower than 30% MEA.