The morphology of limestone-based pellets prepared with kaolin-based binders

► Limestone-based pellets with kaolin-based binders were prepared and characterized. ► Kaolin is unsuitable binder for use in high temperature applications. ► Al(OH)3 binder (from acid leaching of kaolin) is a suitable binder for pellets. ► Acetification of limestone produced a highly porous fluffy structure. ► Pellets prepared from acetified limestone and Al(OH)3 binder are a promising sorbent.