CHEN Jianyu, LIU Ziwen, LI Ping, et al. Thermodynamic study of CO2 and N2 adsorption on modified activated carbon monolith[J]. CIESC Journal, 2012, (10): 3017-3026. DOI: 10.3969/j.issn.0438-1157.2012.10.002.
CHEN Jianyu, LIU Ziwen, LI Ping, et al. Thermodynamic study of CO2 and N2 adsorption on modified activated carbon monolith[J]. CIESC Journal, 2012, (10): 3017-3026. DOI: 10.3969/j.issn.0438-1157.2012.10.002.DOI:
Activated carbon(AC)monolith has the advantages of higher specific surface area
multi channels of pores
higher adsorption and desorption rates and lower pressure drop.So it is generally considered as a promising adsorbent material to capture CO2.In this paper
two commercial coal/coconut AC monoliths were used as adsorbents to capture CO2 from flue gas.These adsorbent materials were soaked in K2CO3 solution to improve CO2 adsorption capacity and selectivity of CO2/N2.Adsorption equilibrium isotherms of CO2 and N2 on coal/coconut AC monoliths(before/after soaking in K2CO3 solution)were measured by using magnetic suspension balance.The experimental data were fitted with Langmuir
multi-site Langmuir and Virial models
respectively.Three models fitted well with the measured isotherms in the whole experimental range