Device and method for coupling catalyst recovery process with dynamic disc membrane separation process

Abstract

The invention relates to a device and method for coupling a catalyst recovery process with a dynamic disc membrane separation process. The device comprises a reaction kettle, a rotary device, a recoil tank, a clear liquid tank, a recoil tank feeding pump and a reaction kettle built-in dynamic disc separator body. The whole system is fully-closed, so that other impurities are prevented from being introduced; the cross-flow filtration operation is carried out by the adopted microfiltration or ultrafiltration dynamic disc, so that the permeation flux of the dynamic disc is high and the equipment investment cost is reduced while the technological process is shortened; the discharging effect is stable and the rejection rate of a superfine catalyst reaches more than 99%; the permeation flux recovery rate of the cleaned dynamic disc can reach more than 90%, the cleaning cycle is long, the integration level of a filter-recoil device structure is high, the continuous operation can be performed, and the economic benefit is also increased to a certain extent while the cost is saved; the dynamic disc is resistant to high temperature, acid, alkali and an organic solvent, and can be applied to various reactions; and the dynamic disc is low in running power consumption, small in occupied area and low in requirement on performance stability of feeding liquid.

Description

technical field [0001] The present invention relates to a device and a method, in particular to a dynamic disc-type membrane device for catalyst recovery aimed at the defects existing in existing devices and processes. The device forms relative motion through the rotation of the disc, The separation efficiency is high, and the catalyst recovery and the dynamic disc membrane separation process coupling device and method overcome the problems of large circulation volume and high production cost in the prior art. Background technique [0002] With the continuous development of chemical and petrochemical production industries, the size of catalysts tends to be ultra-fine, and the efficient separation of solid-liquid heterogeneous phases has become extremely difficult. Traditional separation methods such as plate-and-frame filtration and centrifugal separation are difficult to separate products and The catalyst is completely separated, which not only wastes energy consumption, bu...

AI Technical Summary

Problems solved by technology

With this filtering method, there is no need for high-power pumps to provide a large circulation volume, which solves the problems of low separation efficiency of traditional technology, large circulation volume and high production cost of existing technology. The coupling of catalyst recovery and dynamic disc membrane separation process Device and method

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