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Process for producing hydrogen peroxide with palladium catalyst fixed-bed anthraquinone method and its lye separator

A fixed bed, anthraquinone method technology, applied in the directions of peroxide/peroxyhydrate/peroxyacid/superoxide/ozone, chemical instruments and methods, inorganic chemistry, etc. Problems such as complex process and short service life of catalyst

Active Publication Date: 2020-06-09
HUAQIANG CHEM GRP
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Problems solved by technology

[0004] The above-mentioned inventions have complex processes, frequent side reactions, uneven hydrogenation reactions, and short service life of catalysts

Method used

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  • Process for producing hydrogen peroxide with palladium catalyst fixed-bed anthraquinone method and its lye separator
  • Process for producing hydrogen peroxide with palladium catalyst fixed-bed anthraquinone method and its lye separator
  • Process for producing hydrogen peroxide with palladium catalyst fixed-bed anthraquinone method and its lye separator

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Embodiment Construction

[0028] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0029] Such as Figure 1-Figure 5 Shown, a kind of utilization palladium catalyst fixed-bed anthraquinone method hydrogen peroxide process of the present invention comprises the following steps:

[0030] A: Add heavy aromatics, anthraquinone and trioctyl phosphate to prepare a working liquid in a regeneration liquid storage tank; hydrogen is produced in a hydrogen extraction station and purified by a hydrogen buffer filter;

[0031] B: The working liquid from step A enters a hydrogenation tower through a regeneration liquid pump and hydrogen at the same time for catalytic reaction to obtain a hydrogenation liquid;

[0032] C: After the hydrogenation liquid from the hydrogenation tower is controlled by the automatic control instrument to set the liquid level, 10-20% is separated by the pressure in the hydrogenation t...

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Abstract

The invention discloses a hydrogen peroxide manufacturing technology using a palladium contact agent fixed bed anthraquinone method. The technology is reasonable and efficient in technology, the production capacity of the catalyst is obviously improved, the generation of degraded products is reduced, the optimization for the regeneration environment of activated aluminum oxide is realized by intensifying the separation effect of an alkali liquor separator, the regeneration environment of a working solution is optimized, and a working solution heater is arranged before the working solution enters into a carclazyte bed for increasing the regeneration temperature, so that the activity of the activated aluminum oxide is improved, the regeneration effect is strengthened, the regeneration effect of the activated aluminum oxide plays roles to the maximum space, more degraded products are regenerated, the growth rate of the degraded products is controlled from the source, the compensation space of catalyst activity during production is effectively improved, the service life of the catalyst is prolonged, the heater is used for heating by using secondary steam generated by an alkali evaporator, the purpose of preheating the working solution to improve the regeneration result can be achieved, and recycling for the secondary steam of the system is carried out.

Description

technical field [0001] The invention relates to a process for producing hydrogen peroxide by using a palladium catalyst fixed bed anthraquinone method with a reasonable process, effectively prolonging the service life of the palladium catalyst and improving the activity of activated alumina, and an alkali separator. Background technique [0002] Chinese patent application number: 201310496104.1, which discloses a hydrogenation process for the production of hydrogen peroxide by anthraquinone method, including the following content: two reactors are set in the hydrogenation process for production of hydrogen peroxide by anthraquinone method, and the first stream of fresh hydrogen and working fluid are used as feed materials After the hydrogenation reaction in the first reactor, the reacted material is separated by gas and liquid to obtain a gas phase and a liquid phase, and part of the liquid phase is recycled back to the first reactor, and the rest is rationally optimized and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B15/023
CPCC01B15/023Y02P20/584
Inventor 蔡文涛杨世立唐成林陈晓定
Owner HUAQIANG CHEM GRP
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