NEW AMINES FOR THE REVERSIBLE ABSORPTION OF CARBON DIOXIDE FROM GAS MIXTURES

摘要

In this paper we discuss the use of new amines as a medium for the capture of CO_2 from a gas mixture. The study was carried out comparing the absorption of carbon dioxide by two alkyl-di-amines with that of amines used so far at industrial level, namely mono-ethanolamine (MEA). A known mono silyl-alkyl-amine was also studied for comparison. The absorption of carbon dioxide was studied at different temperatures, in water solution, in organic solvents and using the neat amine. Several cycles of absorption/desorption were carried out. Xerogel solidified amines were also used.