公开(公告)号：US3817872A

公开(公告)日：1974-06-18

申请号：US22395172

申请日：1972-02-07

Applicant: STANDARD OIL CO

Inventor： EVANS R ,  MC KINNEY C

IPC: B01J8/00 ,  C10G11/18 ,  C10G13/18

CPC classification number: C10G11/182 ,  B01J8/0055

Abstract: DISCLOSED IS A METHOD AND APPARATUS FOR IMPROVING THE EFFICIENCY OF A GAS-SOLID SEPARATION SYSTEM. THE CONVENTIONAL SYSTEM CONTAINING A REGENERATION CHAMBER AND ONE OR MORE SETS OF CYCLONES LOCATED WITHIN THE CHAMBER IS IMPROVED BY PROVIDING EXTENSIVES GAS DISCHARGE TUBE "NECKIN" IN THE CYCLONES AND A FINAL-STAGE SOLIDS DISCHARGE TO AN EXTERNAL, LOW-PRESSURE LOW-COST SEPARATOR. THE INVENTION HAS PARTICULAR APPLICATION IN REDUCING DUST EMISSIONS FROM THE REGENERATOR OF A FLUID CATALYTIC CRACKING UNIT.

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