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Abstract CO2 absorption performance for various blended N,N-dimethylethanolamine (DMEA) solutions in the presence of absorption promoters including Monoethanolamine (MEA), Piperazine (PZ), 2-(Ethylamino)ethanol (EAE), 2-(Methylamino)ethanol (MAE) and 2-Amino-2-methyl-1-propanol (AMP) was investigated… Click to show full abstract
Abstract CO2 absorption performance for various blended N,N-dimethylethanolamine (DMEA) solutions in the presence of absorption promoters including Monoethanolamine (MEA), Piperazine (PZ), 2-(Ethylamino)ethanol (EAE), 2-(Methylamino)ethanol (MAE) and 2-Amino-2-methyl-1-propanol (AMP) was investigated in terms of CO2 absorption flux by using a polytetrafluoroethylene (PTFE) hollow fiber membrane contactor. The experimental results show that the CO2 absorption flux increases with a reasonable increase in liquid velocity, liquid temperature and total amine concentration. Also, the CO2 absorption flux can increase by increasing gas velocity, CO2 partial pressure but decrease with the increased lean CO2 loading. In addition, it can be found that all of the investigated activated amines can improve the CO2 absorption flux of aqueous DMEA solution. For fresh amine solution, the order of CO2 absorption flux for the investigated amine blends can be ranked as: DMEA
Journal Title: International Journal of Greenhouse Gas Control
Year Published: 2019
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