SONG Feifei, WANG Yujun, LUO Guangsheng. CO2 adsorption capacity of PEI/AMP loaded on pseudoboehmite support[J]. CIESC Journal, 2013, (2): 574-580. DOI: 10.3969/j.issn.0438-1157.2013.02.023.
SONG Feifei, WANG Yujun, LUO Guangsheng. CO2 adsorption capacity of PEI/AMP loaded on pseudoboehmite support[J]. CIESC Journal, 2013, (2): 574-580. DOI: 10.3969/j.issn.0438-1157.2013.02.023.DOI:
Porous materials modified by amino can reach high CO2 adsorption capacity.In this study
adsorbents were prepared by modifying polyethylene imine (PEI) and 2-amino-2-methyl-1-propanol (AMP) on pseudoboehmite.The effects of CO2 pressure and content of PEI/AMP on CO2 capacity were examined.Adsorbents were characterized by N2 adsorption/desorption
scanning electron microscopy
and Fourier transform infrared spectroscopy.Experiment showed that at 50℃
the highest CO2 adsorption capacity reached 77.53 mg CO2·(g adsorbent)-1
with PEI loading of 85% at reaction pressures≤1 MPa.For reaction pressures 1 MPa<P≤2 MPa
the highest CO2 adsorption capacity of 123.79 mg CO2·(g adsorbent)-1 was obtained.For AMP loaded adsorbents
the highest CO2 adsorption capacity was 128.01 mg CO2·(g adsorbent)-1 with AMP loading of 85%.Adsorption/desorption cycles showed that CO2 capacity of adsorbents changed little.