Heat recovery boilers in the sulfur chemical industry
The air preheating system is mainly composed of equipment such as burners, combustion furnaces, preheaters, combustion-supporting blowers, and circulating blowers to form a system. Through the high-temperature flue gas generated by fuel combustion, the normal-temperature air is preheated to 450-715 °C, and the preheated high-temperature air enters the cracking furnace to participate in the process reaction.
Cooperation Cases
The air preheating system of Jilin Zirui New Materials Co., Ltd.
The air preheating system of Jilin Zirui New Materials Co., Ltd. preheats 60,700 Nm³/h of normal-temperature air to 450 °C through the high-temperature flue gas generated by the combustion of natural gas, and then sends it to the cracking furnace to participate in the reaction. At the same time, the concentration of NOx in the flue gas is≤100 mg/Nm³, meeting the emission standards.
The air preheating system of Lihuayi Lijin Refining Co., Ltd.
The air preheating system of Lihuayi Lijin Refining Co., Ltd. preheats 65,000 Nm³/h of normal-temperature air to 715 °C through the high-temperature flue gas generated by the combustion of natural gas, and then sends it to the cracking furnace to participate in the reaction. An SCR denitrification device is installed inside the system, and the final concentration of NOx in the flue gas is ≤50 mg/Nm³, meeting the emission standards.
