Experimental And Economic Comparison Of Fuels Used In Rotary Kilns On Energy Efficiency

Different methods are used for the heat energy desired to be obtained from large-scale furnaces used in industry. Our study includes the analysis of petroleum coke and natural gas data used in the firing of largescale rotary kilns. After firing, the temperature must rise to 1800 0C in order to sinter the material in the kiln. Therefore, two fuel type hybrids are used for the desired energy. Rotary kilns are fired with natural gas fuel since it is easier to control. Then, petroleum coke is used to increase the temperature and perform the sintering process. Rotary kilns can have certain lengths according to the material to be sintered. After this process, the waste heat goes to the boiler. After the processes carried out here, it is released into the atmosphere at flue gas temperature. Our study includes the amounts of natural gas and petroleum coke of the energy obtained in the rotary kiln. In the firing process, 15.07% of the maximum total energy is obtained from natural gas. It is seen that the cost will be high as a result of this method being performed with natural gas, and the environmental effects will increase when only petroleum coke is used. In the current system, there are various particles in the waste heat generated after the furnace. The particle formation is due to the fact that one of the fuels is petroleum coke and the mineral sintered in the furnace is magnesite. These particles will reduce the boiler efficiency after a while. Therefore, it would be appropriate to use a cyclone group to reduce the particles after the rotary furnace. In conclusion, although petroleum coke is an economical and high energy density fuel in energy production, it presents various difficulties in terms of sustainability when its environmental effects are taken into account. Therefore, it is necessary to both increase the energy efficiency of petroleum coke and reduce its environmental damage. In this context, academic studies on the use of petroleum coke should focus on ensuring the balance between energy efficiency and environmental management.