Dust-free automatic catalyst conversion system of catalytic cracking device

Abstract

The invention discloses a dust-free automatic catalyst conversion system of a catalytic cracking device, which comprises a new catalyst conversion system and a waste catalyst discharging system. A catalyst material level alarming device is respectively arranged in a tank car or a container, a new catalyst storage tank, a waste catalyst tank and a waste catalyst receiving device. The automatic catalyst conversion system automatically controls the system by controlling weight output by an automatic weighing device and material level parameters output by the catalyst material level alarming devices. The automatic catalyst conversion system changes a current catalyst conversion mode of manual field operation, combines catalyst conversion and dust removing simultaneously, thoroughly changes environment of catalyst conversion operation of a fluid catalytic cracking (FCC) device, and improves catalyst conversion efficiency.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a catalyst dust-free automatic agent transfer system of a catalytic cracking unit. Background technique [0002] At present, the FCC (catalytic cracking) unit consumes a large amount of powder FCC catalyst every year. The unit involves the transfer operation of the catalyst from the outside to the inside and from the inside to the outside of the device. The transfer of fresh catalyst from the outside to the inside of the device and the spent catalyst after deactivation Transfer from inside to outside. However, the current operation method mainly adopts bag-type packaging and transportation, broken bag transfer agent and manual waste tank unloading agent. [0003] The bag-packed fresh agent must be broken and fed to the vacuum conveying system to transfer the FCC fresh catalyst from the outside to the inside of the device. The disadvantage of this operation method is that th...

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Problems solved by technology

[0003] The bag-packed fresh agent must be broken and fed to the vacuum conveying system to transfer the FCC fresh catalyst from the outside of the device to the inside of the device. The disadvantage of this operation method is that the environment is polluted by dust, and the operator must operate on site.

Not only that, the bagged catalyst is easy to absorb moisture during transportation and storage, and the catalyst after moisture absorption is prone to thermal collapse when it enters the reaction device, reducing the catalyst activity of the catalyst

[0004] Due to the different uses of the final unloaded catalyst, the current operation of unloading catalyst waste is usually carried out in bags, or in containers such as tank trucks and containers, and the dust generated during the process of packaging, sealing and loading is the problem faced by cleaner production

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