Abstract
Analysis of high pressure adsorption isotherms on activated carbon at a number of temperatures for methane, ethane, ethylene, propane, carbon dioxide and nitrogen was carried out. Isotherms were obtained both above and below the critical temperature ( T c ) for ethane, ethylene, and carbon dioxide, below ( T c ) for propane and above ( T c ) for methane and nitrogen and up to 60 atm of pressure. A comprehensive evaluation of the various methods proposed to apply potential theory to the adsorption data is presented. Temperature-independent characteristic curves for each adsorbate could be obtained if 1. (1) adsorbed phase molar volumes, necessary to obtain the characteristic curves, are evaluated by Dubinin's method and 2. (2) if the adsorption potential is defined as RT ln(fs f) , where fs was calculated from Ps = (T Tc) 2P c . The Dubinin-Astakhov equation gave the most suitable representation of the data.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
