Currently

chemical absorption is the only one mature technology for large scale CO_2 capture from flue gas. Organic amines are commonly used solvents

and the volatility of amines has significant effects on the system operating cost and environmental pollution. The methods and experimental apparatus in literatures for detecting the vapor-liquid equilibrium of organic amine

such as static total pressure method

modified ebulliometer

and online FTIR coupled reactor

are compared. The thermodynamic models including Wilson model

NRTL model

and UNIQUAC model which describing the organic amine system are introduced

and the major factors influncing the volatility of amines as well as the research progress are reviewed in detail. Polar groups such as hydroxyl and bernine are beneficial to reduce amine volatility. Temperature mainly affects Henry's constant and saturated vapor pressure. Mole fraction mainly affects amine activity. The amine volatility in aqueous solvent decreases with the increased CO_2 loading

and the volatility of weak polar absorbers is more affected by ionic strength. Combing with the characteristics of CO_2 capture from flue gas

the main direction for volatility study of amine solvent is proposed.