A study of the ash production behavior of spent limestone powders in CFBC

作者：Kuo Hsiu Po^*; Tseng Hong Ying; Huang An Ni; Hsu Ruey Chi

来源：Advanced Powder Technology, 2014, 25(1): 472-475.

DOI：10.1016/j.apt.2013.04.014

• Limestone
• CFBC
• Pore size distribution
• Ash
• Attrition

Spent limestone particles in a circulating fluidized bed combustor (CFBC) may show a bottom-ash-pro (BAP) behavior or a fly-ash-pro (FAP) behavior. In this study, two spent limestone particles showing the BAP behavior and two spent limestone particles showing the FAP behavior in a 125 MW CFBC are characterized based on their total pore volume and specific surface area before and after 800 degrees C calcination. Provided that the limestone primary fragmentation does not significantly affect the particle size distribution immediately after CFBC injection, the limestone particles having a relatively porous structure after 800 degrees C calcination show a BAP behavior in a CFBC.

• 出版日期2014-1
• 单位长春大学