%0 Journal Article %T On the calculation of catalytic cracking reactor‐regenerator units with permanent and temporary deactivation %A Petersen, E. E. %J Aiche Journal %V 16 %N 3 %P 490-490 %@ 0001-1541 %D 1970-05-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve