Revamping of the 1A/1M Cat Cracker. Increasing Output by 40%.

Revamping of the 1A/1M cat cracker with introduction of new technologies and equipment units is described: feedstock and sludge nozzles, single–stage reactor cyclones, two–stage catalyst stripping, air– and steam–distributing devices, and two–stage regenerator cyclones. The output of the unit increased by 40%, and the yield and octane characteristics of the naphtha cut increased as a result, and grounds were created for converting the unit to a two–year operating cycle between repairs. [ABSTRACT FROM AUTHOR]