Calcination behavior of lumpy limestones from different origins
It is known that limestone from different origins decomposed at same kiln conditions produce totally different quality of product (hard burnt or soft burnt). It infers that the process parameters required (to adjust) for the production of desired quality of lime cannot be prejudged. The main focus of current research work is to understand the calcination behavior by determining the material properties from limestone of different origins based on thermogravimetric experiments and mathematical models. Limestone decomposition experiments from different origins have been conducted at temperatures ranging from 850 to 1200°C. The particles are decomposed in air or pure CO2 gas. Cylindrical particles of size range from 14 mm to 33 mm have been used for the decomposition.