Abstract

Activated carbon honeycomb-monoliths with different textural properties were prepared by chemical activation of African palm shells with H3PO4, ZnCl2 and CaCl2 aqueous solutions of various concentrations. The adsorbents obtained were characterized by N2 adsorption at 77 K, and their carbon dioxide adsorption capacities were measured at 273 K and 1 Bar in volumetric adsorption equipment. The experimental adsorption isotherms were fitted to Langmuir and Tóth models, and a better fit was observed to Tóth equation with a correlation coefficient of 0.999. The maximum experimental values for adsorption capacity at the highest pressure (2.627-5.756 mmol*g-1) are between the calculated data in the two models.

Details

Title
CO2 Adsorption on Activated Carbon Honeycomb-Monoliths: A Comparison of Langmuir and Toth Models
Author
Vargas, Diana P; Giraldo, Liliana; Moreno-Pirajan, Juan C
Pages
8388-8397
Publication year
2012
Publication date
2012
Publisher
MDPI AG
ISSN
16616596
e-ISSN
14220067
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1526020525
Copyright
Copyright MDPI AG 2012