Regeneration device and regeneration process of furfuryl alcohol waste catalyst

Abstract

The invention belongs to a regeneration device and a regeneration process of a furfuryl alcohol waste catalyst. The device comprises at least one furfuryl alcohol waste catalyst bin; at least one furfuryl alcohol waste catalyst dissolving and regenerating unit used for ensuring the solubility of a copper sulfate solution and realizing regeneration of a copper sulfate solution; at least one cleaning unit used for cleaning a solid-liquid mixture produced by the regenerating unit; and at least one crushing unit used for drying and crushing the catalyst, wherein the furfuryl alcohol waste catalystbin is connected with a screening machine through the furfuryl alcohol waste catalyst dissolving and regenerating unit, the cleaning unit and the crushing unit, an undersize product channel of the screening machine is communicated with the packaging machine, and an oversize product channel of the screening machine is communicated with the crushing unit; the device has the advantages of being simple in structure, reasonable in process design, simple, convenient and controllable to operate, capable of achieving regeneration of the furfuryl alcohol waste catalyst and reducing the furfuryl alcohol production cost and being environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of regeneration of spent furfuryl alcohol catalysts, and in particular relates to a regeneration device and regeneration process of spent furfuryl alcohol catalysts. Background technique [0002] Furfuryl alcohol is an important chemical raw material; at present, there are two methods of industrial furfural catalytic hydrogenation to produce furfuryl alcohol, liquid phase hydrogenation and gas phase hydrogenation, because the production equipment and catalysts used in the gas phase method need to be imported from abroad, the price is expensive; at present Most domestic manufacturers of furfuryl alcohol still use liquid-phase medium-pressure or high-pressure hydrogenation method for production. The liquid-phase medium-pressure or high-pressure hydrogenation method is mainly: furfural and hydrogen react in high-pressure liquid phase under the action of a solid catalyst. After the reaction, the mixture is place...

AI Technical Summary

Problems solved by technology

This type of catalyst used in the production of furfuryl alcohol is often deactivated after one use, resulting in waste as soon as it is used, and cannot be directly recycled, and the amount of catalyst used is large

The amount of catalyst used in the production of furfuryl alcohol is large, which can only be used once, which greatly increases the production cost, and the spent catalyst after use needs to be temporarily stored and piled up on site during the treatment process for external sales, which seriously pollutes the site environment

At present, the residual organic matter in the spent catalyst has achieved a very high recovery rate by high-efficiency evaporation, while the regeneration of the spent catalyst part is treated in an ordinary vacuum drying box, which is not only due to the limited processing capacity, low recovery rate and long operation time due to equipment limitations, but also This method cannot be operated continuously and cannot be applied to industrial production

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