The chemical and petroleum industries are an important area of refractory application. Since there are many thermal kiln equipment and complex operating conditions, when choosing refractory materials, you should choose carefully according to the different kiln equipment.
The carbon black reactor is composed of five major parts: combustion chamber, throat, reaction section, quenching section and residence section.
The temperature of the combustion section in the reactor can reach 1600~1700°C, and the hot air flow in the furnace is fast, especially at the end of the throat. Under normal working conditions, the airflow temperature at the end of the throat is above 1700°C, or even as high as 1900°C or higher. At the same time, shutdown of the furnace due to operational reasons, replacement of various products, and the use of water vapor to enter the furnace to purge the oil pipes will cause the furnace lining material to peel off due to thermal stress. In addition, the oxides in the ash produced after the pyrolysis of fuel and raw materials also have a great corrosive effect on refractory materials.
The refractory material lining the carbon black reactor should have the advantages of high refractory resistance, good thermal shock resistance, high density, low porosity and strong resistance to high temperature corrosion/erosion.