Adsorption of SO2 on alumina

Fellner, P., Jurišová, J., Khandl, V., Sýkorová, A. and Thonstad, J. Adsorption of SO2 on alumina Chemical Papers, Vol.60, No. 4, 2006, 311-314

Document type: Článok z časopisu / Journal Article
Collection: Chemical papers  

Author(s) Fellner, P.
Jurišová, J.
Khandl, V.
Sýkorová, A.
Thonstad, J.
Title Adsorption of SO2 on alumina
Journal name Chemical Papers
Publication date 2006
Year available 2006
Volume number 60
Issue number 4
ISSN 0366-6352
Start page 311
End page 314
Place of publication Poland
Publisher Versita
Collection year 2006
Language english
Subject 250000 Chemical Sciences
250200 Inorganic Chemistry
Abstract/Summary The adsorption of SO2 on alumina used in the aluminium industry, the so-called smelter-grade alumina, was studied in the temperature range 15–120°C. It was found that at temperatures lower than 40°C, sulphur dioxide was bonded to alumina reversibly by physical forces, and the adsorption could be described satisfactorily by the Langmuir adsorption isotherm. The heat of adsorption was estimated to be −33 kJ mol−1. At temperatures ranging from 80°C to 120°C, which prevail in dry scrubbers in the aluminium industry, the heat of adsorption was determined to be −56 kJ mol−1. When SO2 was adsorbed at temperatures higher than 80°C, about 30 % of the SO2 could not be desorbed even if the samples were heated up to 250°C. In the presence of SO2 and oxygen, the formation of sulphate was observed at temperatures above 90°C.
Related Links
Link Description   fulltext  
User Comments
Access Statistics: 1 Abstract Views Detailed Statistics
Created: Tue, 16 Mar 2010, 13:30:05 CET by Jana Taptičová . Detailed History