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A kind of low-temperature boiler oxygen scavenger and preparation method thereof

A technology of oxygen scavenger and boiler, applied in the direction of degassed water/sewage treatment, etc., can solve the problems of residual influence of oxygen removal, high toxicity, low oxygen removal efficiency, etc. The effect of steam consumption

Inactive Publication Date: 2016-03-02
天津科维津宏环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These products often have many problems such as high toxicity, low oxygen removal efficiency, and oxygen removal residues affecting boiler water quality.

Method used

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  • A kind of low-temperature boiler oxygen scavenger and preparation method thereof
  • A kind of low-temperature boiler oxygen scavenger and preparation method thereof
  • A kind of low-temperature boiler oxygen scavenger and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 690kg of R / O water into a 1000L reactor, control the water temperature at 30-40°C, first add 7kg of Span 80 to dissolve it completely, then add 1kg of solid polyacrylic acid, 150kg of dimethyl ketoxime, and methyl ethyl ketoxime 150kg, 2kg of cobalt sulfate-EDTA complex, stirred for 1-2 hours to dissolve completely, and the product was obtained.

Embodiment 2

[0023] Add 590kg of R / O water into a 1000L reactor, control the water temperature at 30-40°C, first add 5kg of sodium dio-octyl maleate sulfonate to completely dissolve it, and then add 2kg of solid polyepoxysuccinic acid in sequence , 250kg of acetaldehyde oxime, 150kg of dimethyl ketoxime, 3kg of cobalt sulfate-NTA complex, stirred for 1 to 2 hours to completely dissolve, and the product was obtained.

Embodiment 3

[0025] Add 769kg of R / O water into a 1000L reactor, control the water temperature at 30-40°C, first add 10kg of sodium dioctyl maleate sulfonate to completely dissolve it, then add 5kg of hydrolyzed polymaleic acid, Dimethyl ketone oxime 160kg, cyclohexanone oxime 50kg, nickel chloride 6kg, stir for 1-2 hours to completely dissolve to obtain the product.

[0026] The present invention compares with conventional commercially available boiler oxygen scavenger:

[0027] Table I

[0028]

[0029]

[0030] Note: The operating temperature below 50°C is the normal temperature zone, 50-80°C is the low-temperature zone, 80-120°C is the high-temperature zone, and above 120°C is the ultra-high temperature zone.

[0031] Effect comparison:

[0032] Contrast the use effect of each component of the oxygen-scavenging main agent that the product of the present invention and its use use separately from the following items:

[0033] Deoxygenation temperature: The lowest temperature at ...

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Abstract

The invention discloses a low-temperature boiler deoxidant and a preparation method thereof. The product is prepared by complexing through a specific mixing step by using a main deoxidant, a stabilizing agent, a catalyst, and a solubilizing agent. The preparation process of the product provided by the invention is simple. The product has the advantages of no-toxicity, high deoxygenization speed, high deoxygenization efficiency, and good storage stability. Further, with the addition of the catalyst, product application temperature is reduced, such that the product has more important application value. When the product is applied in a large-scale boiler system, deoxygenization can be carried out under a relatively low temperature (50-70 DEG C), such that deoxygenization device running temperature can be reduced, and steam consumed by the device can be saved. Residue of the produced after the deoxygenization process causes no influence on various indicators of boiler water.

Description

technical field [0001] The invention relates to the field of boiler water treatment, in particular to a low-temperature fast and high-efficiency boiler deoxidizer and a preparation method thereof. Background technique [0002] Boilers are important power equipment for industrial production. During the operation of the boiler, the dissolved oxygen in the water is one of the main reasons for the corrosion of the furnace body. Dissolved oxygen corrosion first caused damage to equipment materials, increased equipment maintenance costs, and shortened the service life of the boiler. At the same time, the corrosion products attached to the boiler tube wall and heating surface will deteriorate the heat transfer, increase the heat transfer loss of the boiler, cause the metal wall temperature to rise, overheat, and bulge, which greatly increases the probability of boiler accidents. In order to prevent oxygen corrosion, it is necessary to deoxidize the boiler feed water. The current...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/20
Inventor 李光海柳如锦王宏义刘康
Owner 天津科维津宏环保科技有限公司