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Combined method and device for deep dehydration of working solution in preparation of hydrogen peroxide by anthraquinone process

A hydrogen peroxide and deep dehydration technology, applied in the direction of peroxide/peroxy hydrate/peroxyacid/superoxide/ozonide, chemical instruments and methods, inorganic chemistry, etc., can solve the problem of not overcoming energy consumption, etc. problems, to achieve the effects of small footprint, height increase and decrease, and strong applicability

Active Publication Date: 2018-07-10
SHANGHAI MISU ENVIRONMENTAL PROTECTION TECHCO LTD
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  • Abstract
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Problems solved by technology

This device has a certain dehydration effect, but it is mainly used in the dehydration of biofuel, and it does not overcome the problem of high energy consumption of traditional vacuum dehydration tanks

Method used

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  • Combined method and device for deep dehydration of working solution in preparation of hydrogen peroxide by anthraquinone process
  • Combined method and device for deep dehydration of working solution in preparation of hydrogen peroxide by anthraquinone process
  • Combined method and device for deep dehydration of working solution in preparation of hydrogen peroxide by anthraquinone process

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Embodiment 1

[0042]After extensive and in-depth research, the inventors of the present application found that the working liquid in the anthraquinone method for hydrogen peroxide is deeply dehydrated, and the traditional separation methods mainly include alkali tower dehydration method and vacuum dehydration method. However, both methods have many disadvantages. The dehydration treatment of hydrogen peroxide in the alkali tower will easily cause the working fluid to leave the drying tower with alkali. Once the alkaline substance enters the oxidation and extraction system, the hydrogen peroxide will be violently decomposed, and even explode. Danger. Due to the need for vacuuming during the vacuum dehydration process, the power consumption of the vacuum pump and its supporting chiller is relatively large, and the economy is poor. Moreover, if the size of the gas-liquid separation space is not appropriate, it is easy to cause liquid inclusion in the gas and increase the heat load of the conde...

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Abstract

The invention relates to a combined method and device for deep dehydration of a working solution in preparation of hydrogen peroxide by anthraquinone process. The combined method includes: employing reduced pressure flash and centrifugal degassing to remove free water and most dissolved water from the working solution, combining the traditional hydrocyclone separation, enhanced gravity settlementand combined fiber demulsification, and performing structural improvement on the basis. Optimal combination of reduced pressure flash, centrifugal degassing and the improved traditional oil-water separation technology can complete deep dehydration of the working solution, and the dehydrated working solution is almost free of insoluble water. The invention also provides device applicable to the separation method, and the device consists of a shell, a cyclone, a feed pipe, a coarse graining module, a fiber agglomeration module, a modified corrugated plate, a pressure reducing valve, a jet pipe,a spiral fluid director and other parts. The device provided by the invention has the characteristics of no moving component, high separation efficiency, small land occupation, low water content of the working solution at the outlet, and selective opening and closing of a low pressure flash pipeline according to actual index, and has strong applicability.

Description

technical field [0001] The present invention relates to a combination method and device suitable for deep dehydration of working fluid in the production of hydrogen peroxide by anthraquinone method, in particular to a combination method and device that utilizes centrifugal field, strengthens gravity sedimentation, combines fiber demulsification, depressurization flash evaporation, and cyclone degassing A method for deep dehydration of the working fluid. This deep dehydration process is realized by means of cyclones, coarse granulation, fiber coalescence modules, modified corrugated plates, jet tubes, and spiral deflectors. Background technique [0002] Hydrogen peroxide, also known as hydrogen peroxide, has a strong oxidizing ability and is known as the "cleanest" chemical product. As an oxidizing agent, bleaching agent, disinfectant, deoxidizer, polymer initiator and crosslinking agent, it is widely used in chemical industry, textile, paper making, military industry, elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/023
CPCC01B15/023
Inventor 耿坤宇黄燎云张剑
Owner SHANGHAI MISU ENVIRONMENTAL PROTECTION TECHCO LTD
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