| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 144093 | Advanced Powder Technology | 2014 | 4 Pages |
•Limestones are classified as the bottom-ash-pro and fly-ash-pro limestones.•BAP and FAP limestone classification methodology is proposed.•Calcined limestone with a relatively porous structure shows BAP behavior.
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 °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 °C calcination show a BAP behavior in a CFBC.
Graphical abstractSpent limestone particles in a circulating fluidized bed combustor (CFBC) may show a bottom-ash-pro (BAP) behavior or a fly-ash-pro (FAP) behavior. The results show that if the limestone primary fragmentation does not significantly affect the particle size distribution of the limestone particles immediately after injection into a CFBC, the limestone particles having a relatively porous structure after 800 °C calcination show a BAP behavior in a CFBC.Figure optionsDownload full-size imageDownload as PowerPoint slide
