Table 9.

Optimization Strategies and weight of each factor in cement kiln.

Optimization Strategy	Main Target	Calculated NOx	Kiln Amps	Preheater CO	Total Feed	Preheater ${\mathrm{O}}_2$	Solid Fuel Feed
1st	Combined Optimal	${10}^6$ (decrease)	${10}^4$ (decrease)	${10}^3$ (decrease)	10 (increase)	${10}^3$ (decrease)	10 (decrease)
2nd	Production Cost	-	${10}^4$ (decrease)	-	10 (increase)	-	${10}^3$ (decrease)
3rd	Environmental Impact	${10}^3$ (decrease)	${10}^4$ (decrease)	${10}^4$ (decrease)	-	-	${10}^3$ (decrease)