๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Adsorption of methane, ethane, ethylene, and carbon dioxide on silicalite-l

โœ Scribed by Vasant R. Choudhary; S. Mayadevi

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
546 KB
Volume
17
Category
Article
ISSN
0144-2449

No coin nor oath required. For personal study only.

โœฆ Synopsis

The adsorption of methane. ethane. ethylene, and carbon dioxide on silicalite-I and the thermodynamics of adsorption have been investigated. under simi!ar conditions using a ~r.avi~etr~c adsorption apparatus. The order for the adsorption of the different adsorbates on slllcalite-l IS CH < CO < C H ... C H . The Dubinin-Polanyi equation is found to fit the isotherm data for the

dll . f h d adsorption of methane (305 K) and ethane (305-413 K); the Freun lch equation Its tea sorption data for methane (353 K). ethane (453 K). and carbon dioxide (353 K); and the adsorption of ethylene (305, 353 K) and carbon dioxide (305 K) follows the La~~m~ir is?therm model. The isosteric heat of adsorption for the adsorption of these gases on sllicalite-l lies between 18 and 32 kJ โ€ข mor'. with ethane having the highest value. The heat of sorption is affected mildly by the surface coverage for all of the gases but methane. The heat of adsorption of methane decreases with an increase in its loading. Analysis of the entropy of adsorption reveals that ethane (at an adsorbate loading of <0.8 mmol -9-'). methane. ethylene, and carbon dioxide (at all adsorbate loadings studied) are supermobile on the silicalite surface. The mobility of adsorbed methane increases. and that of the other adsorbates decreases with increasing the adsorbate loading.

๐Ÿ“œ SIMILAR VOLUMES

Adsorption of methane, ethane and ethyle
Adsorption of methane, ethane and ethylene on molecular sieve zeolites
โœ R.W. Triebe; F.H. Tezel; K.C. Khulbe ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 459 KB

Adsorption of pure methane, ethane and ethylene on molecular sieve zeolites was examined via the gas chromatographic method to determine the potential for the separation of ethylene from light hydrocarbons. The molecular sieves chosen for the study were H-mordenite and 13X, CaX, 4A and 5A zeolites.

The adsorption of methane-ethane mixture
The adsorption of methane-ethane mixtures on activated carbon
โœ K.S. Siddiqi; W.J. Thomas ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 732 KB

The single component adsorption of methane and ethane and also the adsorption of binary mixtures of methane and ethane have been studied in a small fixed isothermal bed containing activated carbon. Results indicate that an empirical Langmuir isotherm fits the experimental data for single components.