Effect of specific surface area on the reactivity of CaO with SO2

✍ Scribed by R. H. Borgwardt; K. R. Bruce

• Publisher: American Institute of Chemical Engineers
• Year: 1986
• Tongue: English
• Weight: 722 KB
• Volume: 32
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690320210

✦ Synopsis

The rate of reaction of calcined limestone with SO, and 0, was measured at

R. H. BORGWARDT

conditions that eliminate all resistances not associated with the CaO grain surface. Reactivity increased with the square of the BET surface area when grain size was varied as an experimental parameter. The observed effects of surface area and temperature account for the SO, capture reported for boiler tests of the limestone injection process.