Separation of Heat Stable Amine Salts in MDEA Solutions Using High-Pressure IC

Crude natural gas (methane) must be chemically processed to remove impurities before the gas can be sold as a pure product. This study shows the determination of the anions in mixtures of both common inorganic anions and heat stable amine added to methyldiethanolamine solutions. The anions were separated by anion-exchange chromatography using a Thermo Scientific™ Dionex™ IonPac™ AS11-HC-4µm high-efficiency guard column and detected using suppressed conductivity.