| 초록 |
Several nitrile-functionalized amines, including N-butyl-N-propionitrile amine (BAPN), N,N-diethyl-N-propionitrile amine (DEAPN), N,N-dibutyl-N-propionitrile amine (DBAPN) were synthesized and their SO2 absorption capacities were evaluated. For comparison, the SO2 absorption capacities of hydroxyethyl-functionalized amines, including N-tert-butylethanol amine (TBAE) and N-methyl-N,N-diethanol amine (MDEA), were also tested. Absorption-desorption cycle experiments clearly demonstrate that the amines bearing a nitrile group are more efficient than those containing a hydroxyethyl functional group or groups in terms of absorption rate and regeneration although the amines containing a hydroxyethyl functional group or groups showed higher SO2 absorption capacities than those containing a nitrile group. |
