The failure analysis on the leaked bellows expansion joint in catalytic cracking unit was investigated.

对某石化公司催化裂化装置中泄漏的大型波纹管膨胀节进行了失效分析.

Adding a grid to the dense phase of the regenerator is an effective method to raise the regenerating capacity of a heavy oil catalytic cracking unit.

再生器密相中增设格栅是提高重油催化裂化装置再生能力的有效措施。