Mathematical modeling of an in-line low-NOx calciner

摘要: The reduction of the NOx content in in-line-calciner-type kiln systems can be made by optimization primary firing rotary and secondary calciner. Because calciner offers greater opportunities mathematical modeling this reactor is very important. A heterogeneous, dynamic model for an in-line low-NOx based on non-isothermal diffusion–reaction models char combustion limestone calcination has been developed. importance rate at which preheated air was mixed into main flow particularly studied. results simulations indicate that external heat mass transfer to particles not limiting. Internal diffusion O2, CO, NO CO2 important especially reducing zone first part oxidizing internal transport limitation significant endothermic calcination. directly influences coal rate, thereby through release from combustion, it also temperature profile. mixing some influence CO concentration profile overall degree fuel-N conversion.