Paper Title:
Adsorption Characteristics of Nitric Oxide and Sulfur Dioxide on Coal Activated Carbon
  Abstract

The aim of this paper is to study the adsorption characteristics of nitric oxide (NO) and sulfur dioxide (SO2) on raw coal activated carbon over temperature ranged 298~343K using a static volumetric adsorption apparatus. The adsorption equilibrium data for NO and SO2 were fitted to Freundlich, Dubinin-Radushkevich (D-R) and Sips adsorption isotherm model. Isosteric heat of adsorption was determined by the Clausius-Clapeyron equation. It was found that Sips adsorption isotherm model is more suitable for description of NO adsorption process at 298K, 313K and 328K and SO2 adsorption process at 313K, 328K and 343K, however, D-R adsorption isotherm model is more suitable for description of the NO adsorption process at 343K and SO2 adsorption process at 298K. The isosteric heat of adsorption values of SO2 increase slightly as the adsorbed amounts increasing from 0.8 to 1.6mg/g, but the isosteric heat of adsorption values of NO show a converse trend. Meanwhile, NO and SO2 adsorbed on coal activated carbon at the four temperatures may be a dominant of physical adsorption.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 11: Materials Behavior
Edited by
Wu Fan
Pages
3056-3062
DOI
10.4028/www.scientific.net/AMR.383-390.3056
Citation
D. J. Kang, X. L. Tang, J. H. Peng, H. H. Yi, P. Ni, Z. Q. Ye, K. Li, "Adsorption Characteristics of Nitric Oxide and Sulfur Dioxide on Coal Activated Carbon", Advanced Materials Research, Vols. 383-390, pp. 3056-3062, 2012
Online since
November 2011
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Price
$32.00
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