the cement kiln system. Sulfur in cement kilns is derived from both kiln feed and from the kiln fuel. The form of the sulfur dictates the location in the kiln where the SO2 generation takes place. Sulfur in the fuel is oxidized in the burning zone or calciner, and is easily removed by reactive lime present in the kiln.
Computation of steady state thermochemistry in rotary kilns: Application to the cement clinker manufacturing process. ... a reference calculation corresponding to the standard production which is compared to experimental data from a kiln audit and a modified calculation in which the gas atmosphere at the main burner was enriched with pure oxygen.