THE EFFECT OF METAL LOADING ON THE ADSORPTION PARAMETERS OF CARBON-DIOXIDE ON COPRECIPITATED NICKEL-ALUMINA CATALYSTS

Authors
AKSOYLU AE AKIN AN SUNOL SG ONSAN ZI
Citation
Ae. Aksoylu et al., THE EFFECT OF METAL LOADING ON THE ADSORPTION PARAMETERS OF CARBON-DIOXIDE ON COPRECIPITATED NICKEL-ALUMINA CATALYSTS, Turkish journal of chemistry, 20(1), 1996, pp. 88-94
Citations number
11
Categorie Soggetti
Chemistry,"Engineering, Chemical
Journal title
Turkish journal of chemistry → ACNP
ISSN journal
13000527
Volume
20
Issue
1
Year of publication
1996
Pages
88 - 94
Database
ISI
SICI code
1300-0527(1996)20:1<88:TEOMLO>2.0.ZU;2-G
Abstract
A coprecipitation method has been developed and modified for the prepa ration of nickel-alumina catalysts having metal loadings in the 0-25 w t% Ni range. The effect of metal loading on CO2 adsorption was investi gated under isothermal chromatographic conditions using an elution tec hnique in the temperature range 483-533 K. Average enthalpies of adsor ption were determined using the isosteres obtained from the experiment al adsorption isotherms. The isotherms were also fitted to the Langmui r equation for the evaluation of adsorption equilibrium coefficients, Gibbs free energies, average adsorption enthalpies and entropies.