Experimental Studies of Reboiler Heat Duty for CO2 Desorption from Triethylenetetramine (TETA) and Triethylenetetramine (TETA) + N-Methyldiethanolamine (MDEA)
2015
Amine scrubbing is regarded as one of the most suitable technologies for postcombustion CO2 capture. However, data on regeneration energy and performance is limited in literature. In this study, the reboiler heat duties of triethylenetetramine (TETA) and triethylenetetramine (TETA) + N-methyldiethanolamine (MDEA) were experimentally evaluated in a bench-scale stripper packed with Dixon ring random packing. The effects of various operating parameters on the desorption performance (presented in terms of reboiler heat duty, Qreboiler) were investigated, including lean loading, rich loading, amine concentration, solvent flow rate, and amine type. The experimental results showed that the Qreboiler was very sensitive to these process parameters. In addition, a comparison of the Qreboiler of TETA, monoethanolamine (MEA), and diethylenetriamine (DETA) was conducted to evaluate the potential for TETA’s application in the CO2 capture process. The results obtained in this work showed that the Qreboiler of TETA, as a...
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