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High-yield and energy-saving method for composite preparation of ozone by electrolysis/corona method

A corona, high-yield technology, applied in the field of combined electrolysis/corona method to prepare ozone, can solve the problems of ozone concentration, low production efficiency, and high operating costs, and achieves guaranteed ozone content, high ozone output, and energy savings in cooling consumption Effect

Active Publication Date: 2021-06-25
海伟环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current ozone concentration, low production efficiency, and high operating costs still limit its application to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0057] Preparation Example 1 Preparation of tin dioxide-containing electrode:

[0058] A. Preparation of β-stannoic acid

[0059] Take a 250mL beaker, add 100ml of concentrated nitric acid, take 100g of metal tin under the condition of vigorous stirring with a magnetic stirrer, slowly add it into the beaker, control the liquid phase temperature at 30°C, the solution turns from clear to milky white turbid, let it stand Overnight until the reaction stopped, and filtered to obtain the target product β-stannoic acid.

[0060] B. Preparation of Nickel Nitrate / SnO Hydrogel

[0061] The above-mentioned β-stannic acid was washed 10 times with deionized water. Take a 1L volumetric flask and configure 0.01mol / L nickel nitrate solution, and disperse β-stannic acid evenly in the solution in an ultrasonic water bath environment for 6 hours until the light green color of the solution disappears. Suction-filtered nickel nitrate / tin dioxide hydrogel was obtained and dried for later use.

...

Embodiment 1

[0075] Embodiment 1 The electrolysis / corona method composite preparation method of ozone of high production and energy saving, comprises the following steps:

[0076] S1. Add electrolyte solution into the electrolytic cell, set cathode and anode, current density, cell voltage, electrolyte temperature, electrify and electrolyze, and collect anode product gas;

[0077] S2. Using the anode product gas obtained in step S1 as a raw material gas, an ozone / oxygen mixed gas is prepared by corona discharge.

[0078] The electrolytic cell described in step S1 is an electrolytic cell without a diaphragm.

[0079] The electrolytic solution described in step S1 is a phosphate composite solution, and its composition is that every liter of solution contains 1.8mol K 2 HPO 4 with 0.5mol KH 2 PO 4 .

[0080] The cathode in step S1 is a nickel alloy electrode. The anode is the anode prepared in Preparation Example 1.

[0081] The current density of the electrolysis set in step S1 is 500A...

Embodiment 2

[0088] Embodiment 2 The electrolysis / corona method composite preparation method of ozone of high production and energy saving, comprises the following steps:

[0089] S1. Add electrolyte solution into the electrolytic cell, set cathode and anode, current density, cell voltage, electrolyte temperature, electrify and electrolyze, and collect anode product gas;

[0090] S2. Using the anode product gas obtained in step S1 as a raw material gas, an ozone / oxygen mixed gas is prepared by corona discharge.

[0091] The electrolytic cell described in step S1 is an electrolytic cell without a diaphragm.

[0092] The electrolytic solution described in step S1 is a phosphate composite solution, and its composition is that every liter of solution contains 2.8mol K 2 HPO 4 with 1.0mol KH 2 PO 4 .

[0093] The cathode in step S1 is a graphite electrode. The anode is the anode prepared in Preparation Example 2.

[0094] The current density of the electrolysis set in step S1 is 1200A / m ...

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PUM

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Abstract

The invention discloses a high-yield and energy-saving method for composite preparation of ozone by an electrolysis / corona method, and relates to the technical field of ozone preparation. The method comprises the following steps of: S1, adding an electrolyte into an electrolytic bath, setting a cathode and an anode, setting current density, bath voltage and electrolyte temperature, electrifying for electrolysis, and collecting anode product gas; and S2, taking the anode product gas obtained in the step S1 as raw material gas, and preparing ozone / oxygen mixed gas through corona discharge. By adopting the composite ozone preparation method provided by the invention, due to the organic combination of the two methods, the ozone content of the product can be greatly improved on the premise of maximally reducing the limitation of reaction conditions (saving the energy consumed by adjusting the reaction conditions), and the method has the characteristics of being energy-saving, environment-friendly and efficient.

Description

technical field [0001] The invention relates to the technical field of ozone preparation, in particular to a high-yield and energy-saving electrolysis / corona compound preparation method for ozone. Background technique [0002] Ozone is an allotrope of oxygen with the chemical formula O 3 , its molecules are extremely unstable and can be decomposed to produce monatomic oxygen (O) and hydroxyl (OH) with strong oxidizing ability. Ozone is a strong oxidant and a unique bacteria-melting preparation that can quickly integrate into the cell wall and destroy bacteria The internal structure of microorganisms such as viruses and viruses has a strong killing effect on various pathogenic microorganisms, and has broad application prospects in production and life. [0003] The technology of producing ozone by electrolysis was founded in 1840. It mainly uses low-voltage direct current to electrolyze water to make water oxidize on the anode-solution interface to generate ozone. The ozone ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B13/11C25B1/13
CPCC01B13/11C25B1/13
Inventor 王海伟
Owner 海伟环境科技有限公司
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