Catalyst unpacking and conveying and dust removing system and method for FCC (Fluid Catalytic Cracking) device

Abstract

The invention belongs to the technical field of petrochemical engineering, and particularly provides a catalyst unpacking and conveying and dust removing system and method for an FCC (Fluid Catalytic Cracking) device. The catalyst unpacking and conveying and dust removing system comprises a dustproof unpacking system, a lifting system, a dust removing system and an automatic control system. With the adoption of the system and the method provided by the invention, the non-dust unpacking and dense phase automatic conveying of a catalyst can be achieved; the traditional conveying method of steam vacuum pumping is completely removed; and meanwhile, an efficient catalyst dust removing system based on a 316L stainless steel hybrid knitting filtering bag is adopted to replace the traditional cyclone separator; the dust removing efficiency can be increased to 99.99%. The system and the method have the advantages of low catalyst loss and relatively low running cost; and the method is a catalyst conveying and powder dust removing technology with a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, in particular to a catalyst unpacking, conveying and dedusting system and method for an FCC (fluid catalytic cracking) unit. Background technique [0002] At present, the catalyst used in the domestic FCC unit is loaded into the fresh catalyst storage tank, usually in the form of manually untying the catalyst packaging bag, and the catalyst is poured into the catalyst hopper through manual labor of the workers, and then vacuumized with steam, supplemented by compressed air In the way of fluidized dilute phase transport, the catalyst is transported to the catalyst storage tank installed on the site of the catalytic device, and the dust is removed by a cyclone separator. In the traditional mode, this kind of transportation needs to carry out catalyst transportation in the form of steam vacuumization, and the lifting of each ton of catalyst requires about 2 tons of steam and 72 cubic ...

AI Technical Summary

Problems solved by technology

[0011] For the first time, this invention applies the hybrid weaving technology of ultra-fine powder dense phase transportation and high-efficiency stainless steel wire mesh peritoneal filter bag to FCC catalyst transportation and dust removal, and proposes a new process solution for FCC catalyst transportation and dust removal, completely solving the original catalyst Problems of high energy consumption, high noise and low dust removal efficiency during conveying and dust removal

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