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Method for directly synthesizing hydrogen peroxide from hydrogen and oxygen under a high hydrogen-oxygen ratio condition

A technology of hydrogen peroxide, hydrogen and oxygen, applied in chemical instruments and methods, peroxide/peroxyhydrate/peroxyacid/superoxide/ozone, inorganic chemistry, etc., to improve conversion rate and selectivity , the effect of high catalyst utilization and heat transfer efficiency

Active Publication Date: 2021-04-16
ZHEJIANG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0010] Another object of the present invention is to propose a safe solution to the problems that may be encountered in the process of process amplification, so as to realize the high-selectivity continuous production of hydrogen peroxide

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  • Method for directly synthesizing hydrogen peroxide from hydrogen and oxygen under a high hydrogen-oxygen ratio condition

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Embodiment Construction

[0034] The method and device provided by the present invention will be further described below in conjunction with the accompanying drawings.

[0035] The present invention is achieved through the following technical solutions:

[0036] The reaction device for directly synthesizing hydrogen peroxide from hydrogen and oxygen of the present invention includes a reactor, a liquefaction storage tank, a pump and related feed pipelines and pipelines connecting the above equipment; it is characterized in that: hydrogen and oxygen inlets are connected to respective liquefaction storage tanks ; The liquid feed is also connected to the liquefaction storage tank; the hydrogen, oxygen liquefaction storage tank and the circulating liquid storage tank are connected to the pump; the pump outlet is combined and connected to the reactor inlet; the reactor outlet part is connected to the circulating liquid storage tank inlet, and part is directly exported .

[0037] The production method of hy...

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Abstract

The invention discloses a method for directly synthesizing hydrogen peroxide in a fixed bed under the condition of high hydrogen-oxygen ratio. The method provided by the present invention is that the raw material hydrogen and oxygen are independently dissolved and liquefied outside the reactor without direct mixing, and then fed into the fixed bed reactor, and hydrogen and oxygen are catalyzed to prepare hydrogen peroxide in the presence of a supported noble metal catalyst. After the reaction, it is separated, the unreacted liquefied hydrogen is recycled, and the hydrogen peroxide is separated and refined. In the case of safe operation, the present invention adopts a higher hydrogen-oxygen ratio, increases the selectivity and conversion rate of hydrogen peroxide, and realizes the continuous production under the circulation system. The present invention has the advantages of simple operation process, low investment cost, continuous stability Good sex and other characteristics.

Description

technical field [0001] The invention relates to the field of synthesis and design of hydrogen peroxide, in particular to a method for directly synthesizing hydrogen peroxide from hydrogen and oxygen under the condition of high hydrogen-oxygen ratio. Background technique [0002] Hydrogen peroxide is an important fine chemical raw material, and also a green and clean oxidant, because it has the highest active oxygen content, and the by-product of the reaction is only water, which has no pollution to the environment, and has been widely used in chemical industry, textile, papermaking , food, environmental protection and other industries. The production methods of hydrogen peroxide include electrolysis method, isopropanol oxidation method, oxygen cathode reduction method, anthraquinone method and direct synthesis method of hydrogen and oxygen. Among them, the first three methods have been eliminated due to reasons such as large energy consumption, poor product quality and high...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B15/029
CPCC01B15/029Y02P20/129
Inventor 孙婧元程佳楠王靖岱黄正梁杨遥廖祖维叶健蒋斌波阳永荣张浩淼
Owner ZHEJIANG UNIV
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