Removal of sulphur dioxide using palygorskite in a fixed bed adsorber

This work describes the use of a novel palygorskite, a type of magnesium aluminium silicate clay possessing a high specific surface area and pore surface activity, as a low cost and highly efficient adsorbent for sulphur dioxide (SO2) removal. Dynamic adsorption in a fixed bed adsorber showed that p...

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Veröffentlicht in:Environmental technology. - 1998. - 30(2009), 14 vom: 14. Dez., Seite 1529-38
1. Verfasser: Zhang, Qiong (VerfasserIn)
Weitere Verfasser: Higuchi, Takaya, Sekine, Masahiko, Imai, Tsuyoshi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2009
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Air Pollutants Magnesium Compounds Silicon Compounds Sulfur Dioxide 0UZA3422Q4 attapulgite U6V729APAM
Beschreibung
Zusammenfassung:This work describes the use of a novel palygorskite, a type of magnesium aluminium silicate clay possessing a high specific surface area and pore surface activity, as a low cost and highly efficient adsorbent for sulphur dioxide (SO2) removal. Dynamic adsorption in a fixed bed adsorber showed that palygorskite pretreated with sodium hydroxide had a higher adsorption capacity at 10% breakthrough than either raw material or that pretreated with acid. The SO2 adsorption capacity increased with increasing inlet SO2 concentration and decreased with increasing temperature. Samples were characterized for: specific surface area using the Brunauer-Emmett-Teller (BET) method, crystal structure by X-ray diffraction (XRD), and surface chemistry by Fourier transform infrared spectroscopy (FTIR). Adsorption equilibrium isotherms were established for samples over an SO2 concentration range from 50 to 460 ppm, at room temperature. The adsorption equilibrium could be described by both the Freundlich and the Langmuir isotherms
Beschreibung:Date Completed 02.04.2010
Date Revised 21.11.2013
published: Print
Citation Status MEDLINE
ISSN:0959-3330
DOI:10.1080/09593330903246440