Effect of calcination conditions on the physical properties of sorbents used for sulfur dioxide removal


ERSOYMERICBOYU A. , KUCUKBAYRAK S.

Energy Sources, vol.17, no.6, pp.641-653, 1995 (Refereed Journals of Other Institutions) identifier identifier

  • Publication Type: Article / Article
  • Volume: 17 Issue: 6
  • Publication Date: 1995
  • Doi Number: 10.1080/00908319508946109
  • Title of Journal : Energy Sources
  • Page Numbers: pp.641-653

Abstract

The effect of calcination conditions on the physical properties of calcines produced from natural Turkish limestones and dolomites was investigated. Calcination experiments were conducted in a tube furnace at temperatures of 1073,1123,1173,1273, and 1373 K, Two different gaseous atmospheres were employed, namely, dry air (100 vol%) and a mixture consulting of CO2 (15 vol%%) and dry air (85 vol%).The physical properties,which involve bulk density (g/cm3),total pore volume (cm3/g), and the pore size distribution of the calcines prepared under different conditions, weredetermined using a mercury porosimeter, It was found that the physical properties of calcines were dramatically affected by the calcination conditions. At high calcination temperatures, because of sintering and shrinking effects, a decrease in porosity, an increasein bulk density and average pore radius were observed, in addition, the calcines prepared in a mixed atmosphere of dry air and carbon dioxide had larger pore sizes than those of calcines prepared in an atmosphere of dry air. © 1995 Taylor and Francis Group, LLC.