【摘 要】
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In the current work five different solvent blends are experimentally studied and the reboiler duties are calculated using the so-called short-cut method. Tertia
【机 构】
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Norwegian University of Science and Technology, Department of Chemical Engineering, NO-7491 Trondhei
论文部分内容阅读
In the current work five different solvent blends are experimentally studied and the reboiler duties are calculated using the so-called short-cut method. Tertiary amines, 2-(diethylamino)ethanol (DEEA), 3-(Diethylamino)-1,2-propanediol (DEA-12PD), 2-[2-(Diethylamino)ethoxy] ethanol (DEA-EO), 1-(2-Hydroxyethyl)piperidine (12HE-PP) are blended with 3-(Methylamino)propylamine (MAPA) and ethanolamine (MEA). The first results from simple solvent screening are given and the cyclic capacities are calculated based data at 40 ℃ and 80 ℃. Then, five solvent systems are chosen for vapor-liquid equilibrium characterization. The vapor-liquid equilibrium data are then used to estimate cyclic capacities at more realistic temperatures, between 40 ℃ and 120 ℃ and by using a short-cut method proposed in the literature the reboiler duties of the characterized solvents are estimated. Finally, the potential of the studied systems is discussed. Several of the characterized blends showed reboiler duties around 2.5 MJ kg-1CO2 .
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