A hydrogenation method and hydrogenation device for a hydrogen-containing anthraquinone working liquid

Abstract

The present invention disclosed a hydrogenation method and hydrogenation device for hydrogen -containing work liquid: hydrogen -containing gas and pyrine work liquid under the catalyst catalyst to generate hydrogen -containing hydrogen -containing work liquid;The generated tail gas is used after condensation, separation, filtering, and pressurizing; the generated hydrogen -containing work liquid, part of which removes the catalyst after filtering, and then performs subsequent oxidation reactions after cooling, filtering, and security filtering. Most of them are mostly.Hydrogen -containing work liquid re -hydrogenation reactions.After the industrialization of this process, the production efficiency can be improved by 40 % on the basis of the existing domestic fixed bed hydrogenation process, and the risk factors in production in the essence of production principles and processes can increase the product concentration from 30 % by more than 40 % or moreAnd the main indicators of product quality, such as organic carbon content, and not volatile contents, etc., are better than the products produced by fixed bed processes.It has an epoch -making promotion significance for the development of hydrogen peroxide in my country.

Description

technical field [0001] The invention relates to a hydrogenation method and a hydrogenation device for a hydrogen-containing anthraquinone working liquid. Background technique [0002] In the prior art, the preparation of hydrogen peroxide is generally realized by the anthraquinone method. The anthraquinone method uses 2-ethylanthraquinone as a carrier, palladium (or nickel) as a catalyst, and is formed by H 2 and O 2 direct synthesis of H 2 o 2 . It is divided into four processes: hydrogenation, oxidation, extraction and post-treatment. [0003] The hydrogenation process generally adopts a fixed-bed process, using alkyl anthraquinone as a carrier, and using heavy aromatics and tetrabutylurea as a solvent to form a working solution. Under certain pressure, temperature and the presence of a palladium catalyst, the working fluid undergoes a hydrogenation reaction with hydrogen to generate a solution containing the corresponding alkylhydroanthraquinone (referred to as the ...

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Problems solved by technology

[0005] Although the fixed-bed anthraquinone production process is the mainstream of domestic production of hydrogen peroxide devices, it also shows low production efficiency, poor product quality, high production consumption per unit product, heavy production equipment, large investment, and poor production and operation safety. More disadvantages

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