Selective adsorption of carbon dioxide, methane and nitrogen using resorcinol-formaldehyde-xerogel activated carbon Academic Article uri icon

abstract

  • 2017, Springer Science+Business Media, LLC. Resorcinolformaldehyde xerogel was prepared, carbonized and activated in specific conditions to form resorcinolformaldehyde activated carbon xerogel (RF-ACX) that was to produce microporous nanoparticles. RF-ACX was used in the adsorption of CO2, CH4, and N2 gases. Adsorption/desorption isotherms of CO2, CH4, and N2 gases onto RF-ACX adsorbent were measured gravimetrically by a magnetic suspension microbalance at five different temperatures (20, 30, 40, 50 and 60C) in the pressure range of 01MPa. All adsorption/desorption isotherms were found to be favorable and well correlated with dual site Langmuirs model. The adsorption capacities of the three adsorbates increased with increasing pressure or with decreasing temperature. Nonetheless, the corresponding increase of CO2 adsorption capacity was much higher than those of CH4 and N2. The fitting parameters deduced from dual site Langmuirs model were used to provide approximate predictions of the adsorption equilibria and selectivities of the corresponding binary mixtures (CO2/CH4, CH4/N2 and CO2/N2), which relate to separation processes of high influence to various energy and environmental applications.

published proceedings

  • ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY

author list (cited authors)

  • Awadallah-F, A., Al-Muhtaseb, S. A., & Jeong, H.

citation count

  • 12

complete list of authors

  • Awadallah-F, Ahmed||Al-Muhtaseb, Shaheen A||Jeong, Hae-Kwon

publication date

  • November 2017