Functionalized ionic liquid phase change system for capturing carbon dioxide and application of system
A technology of carbon dioxide and ionic liquid, which is applied in the direction of educts, inorganic chemistry, carbon compounds, etc., can solve the problems of difficult regeneration of absorbents and low carbon dioxide capture efficiency, so as to facilitate storage and treatment, promote industrialization, and avoid equipment corrosion Effect
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[0023] Example 1
[0024] A functionalized ionic liquid phase change system for carbon dioxide capture in this embodiment is a three-phase change system composed of functionalized ionic liquid diethylenetriamine triazole ([DETA][Tz]), n-propanol and water Element mixing system, in which the total concentration of diethylenetriaminetriazole is 0.5-1 mol / L, and the volume ratio of n-propanol to water is 5:5-8:2. The ratio of the mixed gas of carbon dioxide and nitrogen is 0-20%, and the absorption temperature is 30-60°C.
[0025] The ternary mixed system is a homogeneous transparent liquid solution before absorbing carbon dioxide, and after absorbing carbon dioxide saturated, it is divided into a liquid-liquid two-phase phase change system, and the carbon dioxide is enriched in the water phase.
[0026] After the absorption of carbon dioxide is saturated, the carbon dioxide-enriched water phase can be regenerated by thermal desorption. The regeneration temperature is 100~120℃, the reg...
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