Equipment for cooling and stripping regenerated catalyst

Abstract

The invention discloses cooling and steam stripping equipment for an regenerated catalyst in the catalytic cracking field of the petroleum refining and petrochemical industry, aiming at solving the problems of higher steam consumption, smaller adjustment range of heat quantity acquaintance and regenerated catalyst temperature, and the like of the existing equipment. The cooling and steam stripping equipment is provided with a steam stripping section; the steam stripping section comprises a steam stripping barrel body (8), a steam stripping baffle plate (9) and a steam stripping distributor (10), wherein the outer side of the upper part of the barrel body of the steam stripping section is provided with a mixture barrel body (6), a mixed space for temperature adjustment is formed by the mixture barrel body and the barrel body of the steam stripping section, and an air distributor (7) is arranged at the bottom of the mixed space for temperature adjustment. The inner lower part of an inlet and outlet pipe (1) of the regenerated catalyst is provided with a thermal catalyst inlet pipe (2), the inlet of the inlet pipe is led into a reactivator, and the outlet of the inlet pipe is connected with the middle part or the lower part of the mixture barrel body. A heat removal pipe (4) is arranged at the outer side of the mixture barrel body, and the lower part of the mixture barrel body isprovided with a fluidizing air distributor (5). The cooling and steam stripping equipment can be used in various devices for catalytic cracking processes.

Description

technical field [0001] The invention relates to cooling and stripping equipment for regenerated catalysts in the field of catalytic cracking in petroleum refining and petrochemical industry. Background technique [0002] Catalytic cracking is an important secondary processing process in petroleum refining and petrochemical industry. With the increasing demand for chemical products, fluid catalytic cracking technology is widely used in hydrocarbon conversion processes for the production of chemical products, such as MTO process (using methanol to produce ethylene, propylene and butadiene products), MTP process (using methanol to produce single propylene products). The process is: the raw material enters the riser reactor, and reacts with the catalyst from the regenerator. The reaction product and catalyst are separated in the settler; the reaction product is discharged from the upper part of the settler and enters the fractionation system to separate the target product. Th...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of cooling and stripping equipment of regenerated catalyst, to solve the cooling of existing regenerated catalyst and the steam consumption of steam existing in stripping equipment, the adjustment range of heat extraction and regenerated catalyst temperature is small 、Water vapor is easy to cause problems such as hydrothermal deactivation and thermal collapse of high-temperature regenerated catalysts

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