FLUID CATALYTIC CRACKING UNIT FOR REINFORCING DURABILTY

摘要

The present invention relates to a fluid catalytic cracking unit with reinforced durability, specifically to a crude oil refining apparatus having a catalyst reacting part and a catalyst regenerating part. The inner part of the catalyst reacting part surrounds the outside of a supply pipe which is installed vertically, to supply bunker C oil and catalyst. A striper forms the bottom end of the catalyst reacting part to collect the discomposed waste catalyst by catalyst discomposing reaction. A waste catalyst pipe is connected to the striper at an angle downward to supply the waste catalyst for regeneration. A stress supporting means is comprised, around the area where the waste catalyst pipe and striper are connected, to support the stress being generated around that area, which prevents damages on the portion and surroundings. According to the present invention, by reinforcing the connected part between the waste catalyst stand pipe and stripper by the stress supporting means, the stress generated during the movement of the waste catalyst can be supported, the damages on the connected part can be prevented, and a structural stability can be applied, therefore, the durability can be extended and the operation expense can be reduced. [Reference numerals] (AA) Waste catalyst;(BB) Oxygen contained gas stream and selective steam;(CC) Recycled catalyst;(DD) Freeraft media