What are the characteristics of refractory castables for catalytic cracking units:

Catalytic cracking refractory castables need to have the following characteristics:

1. Using the latest technology in the international refractory industry, composite low-cement and self-flow technology, so that the material has good construction performance and long-term service life;

2. The high alumina content, high purity and low impurities in the material can ensure high temperature performance and long-term use in reducing gas atmosphere;

3. The material line change rate is small, the strength is high, and the wear resistance is excellent, which can effectively prevent the corrosion of oil and gas to the refractory lining and the corrosion of the operating equipment body;

More than 4,100 sets of catalytic cracking units in refineries have been applied, and the units have been operating safely for more than 20 years.