This article discusses the relation among the height of catalyst bed -layer,the dissociated height of transporation(TDH),the operation of cyclone separator and the loss of catalyst in the regenerator.

• 讨论了再生器中催化剂床层高度,输送分离高度(TDH),旋风分离器操作与催化剂跑损的关系,提供了监控再生操作,降低催化剂跑损的措施。