Adsorption isotherms and heats of adsorption of hydrogen, neon and nitrogen on activated charcoal

✍ Scribed by C.K. Chan; E. Tward; K.I. Boudaie

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 609 KB
• Volume: 24
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(84)90001-8

✦ Synopsis

The results of measurements of adsorption isotherms of hydrogn, neon and nitrogen on charcoal in the temperature range of 77 K to 400 K and the pressure range of 1 arm to 80 atm are given. The heats of adsorption were calculated from the measured isotherms. The isotherms were fitted to a semiempirical generalized expression of the type

It was found that within the experimental uncertainty, the expression was a fairly good representation of the isotherm data for these pressure and temperature ranges, if an appropriate potential function x was chosen for the correlation. The heats of adsorption derived from the generalized equations compared well with the experimental data.