Production system and production method of hydrogen peroxide

Abstract

The invention relates to a production system and a production method of hydrogen peroxide. The bottom of a working solution tank is connected with an inlet of a hydrogenation reaction device by virtue of a working solution pump and a working solution supply pipe, the outlet of the hydrogenation reaction device is connected with a hydrogenation fluid tank by virtue of a purified hydrogenation fluid outlet pipe, the bottom of the hydrogenation fluid tank is connected with the inlet of an oxidation tower by virtue of a hydrogenation fluid pump, a hydrogenation fluid tank output pipe, a hydrogenation fluid filter and a hydrogenation fluid cooler, and the outlet of the oxidation tower is connected with an oxidized liquid output pipe; a hydrogenation fluid inlet on the side wall of the upper part of the oxidation tower is located above a liquid level line, an air distributing device is arranged at the lower part of the oxidation tower, and multiple horizontal disc-shaped oxidation tower trays are uniformly arranged along the height direction of the oxidation tower; multiple air holes are uniformly densely distributed on each oxidation tower tray, and a liquid falling hole and a liquid falling pie are arranged on each oxidation tower tray respectively; and the liquid falling holes of odd number layers of the oxidation tower trays are located on the axis of the oxidation tower, and the liquid falling holes of even number layers of the oxidation tower trays are symmetrically arranged and close to the inner wall of the oxidation tower. The production system provided by the invention has high hydrogenation and oxidation efficiencies and is low in investment and small in occupying area.

Description

technical field [0001] The invention relates to a production system of hydrogen peroxide, and also relates to a production method of fluidized bed hydrogen peroxide, which belongs to the technical field of hydrogen peroxide production equipment. Background technique [0002] Hydrogen peroxide is an important inorganic chemical raw material, widely used in papermaking, textile, medicine, chemical industry, electronics, environmental protection and other fields. Hydrogen peroxide decomposes to produce water and oxygen, which has no secondary pollution to the environment and conforms to the concept of green product production. [0003] In the prior art, hydrogen peroxide is usually produced by the anthraquinone method. The anthraquinone method uses 2-ethylanthraquinone as a carrier and palladium as a catalyst to directly synthesize hydrogen peroxide from hydrogen and oxygen, followed by hydrogenation. , oxidation, extraction and post-treatment processes. Among them, the hydro...

AI Technical Summary

Problems solved by technology

The traditional oxidation tower is a hollow tower body. The hydrogenated liquid and air enter the oxidation tower from the bottom at the same time, and go up while stirring. The air bubbles are relatively large, the contact area between the hydrogenated liquid and air is small, and the oxidation efficiency is relatively low. Usually, an oxidation The upper section tower, the oxidation middle section tower and the oxidation lower section tower have undergone multiple oxidations before entering the extraction process

Large equipment investment and low oxidation efficiency

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