TY - JOUR TI - Capture of SO2 by limestone in a 71 MWe pressurized fluidized bed boiler AU - Shimizu Tadaaki AU - Sasatsu Hiroshi AU - Ueda Hachiro AU - Suzuki Nobuyuki AU - Misawa Nobuhiro AU - Sakuno Shinichi AU - Tanaka Masato AU - Yamagiwa Kazuaki AU - Peglow Mirko AU - Gotou Hideki JN - Thermal Science PY - 2003 VL - 7 IS - 1 SP - 17 EP - 31 PT - Article AB - A 71 MWe pressurized fluidized bed coal combustor was operated. A wide variety of coals were burnt under fly ash recycle conditions. Limestone was fed to the combustor as bed material as well as sorbent. The emission of SO^ and limestone attrition rate were measured. A simple mathematical model of SO? capture by limestone with intermittent solid attrition was applied to the analysis of the present experimental results. Except for high sulfur fuel, the results of the present model agreed with the experimental results.