Environment-friendly efficient boiler deoxidant

A high-efficiency oxygen scavenger technology, applied in degassed water/sewage treatment, neutralized water/sewage treatment, reduced water/sewage treatment, etc., can solve the problem of large influence of temperature, pH and excess amount, copper ammonia corrosion , flammable and explosive problems, to achieve the effect of improving material stability, enhancing oxygen removal capacity, and ensuring product qualification rate

Inactive Publication Date: 2021-07-02
NANJING CANUO ENERGY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, hydrazine is commonly used as a chemical oxygen scavenger to assist thermal oxygen removal. However, it is flammable, explosive, volatile, and suspected of being a carcinogen, so th

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The technical solution of the present invention is an environmentally friendly and efficient boiler oxygen scavenger, which is made of the following raw materials in parts by weight: 20 parts of dimethyl ketone oxime, 15 parts of butanone oxime, 12 parts of acetaldehyde oxime, 15 parts of carbazide, and dispersant 7 parts, 9 parts of pH regulator, 7 parts of catalyst, 38 parts of water.

[0021] The dispersant includes polyethylene glycol 200 as the dispersant. The pH regulator is cyclohexylamine. The catalyst is a polyphenol, and the polyphenol is hydroquinone, catechol, resorcinol, 1,2,3-glucinol, 1,3,5-glucinol and 1,2 ,4-Glycinol.

[0022] An environment-friendly and high-efficiency boiler oxygen scavenger is prepared by the following preparation method:

[0023] Step 1: Add 30 parts of purified water into the preparation container and heat up to 35 degrees;

[0024] Step 2: Add 20 parts of dimethyl ketoxime, 15 parts of butanone oxime, and 12 parts of acetaldeh...

Embodiment 2

[0027] The technical solution of the present invention is an environmentally friendly and efficient boiler oxygen scavenger, which is made of the following raw materials in parts by weight: 20 parts of dimethyl ketone oxime, 15 parts of butanone oxime, 12 parts of acetaldehyde oxime, 15 parts of carbazide, and dispersant 7 parts, 9 parts of pH regulator, 7 parts of catalyst, 38 parts of water.

[0028] The dispersant is citric acid. The pH regulator is diisopropylhydroxylamine. The catalyst is a polyphenol, and the polyphenol is hydroquinone, catechol, resorcinol, 1,2,3-glucinol, 1,3,5-glucinol and 1,2 ,4-Glycinol.

[0029] An environment-friendly and high-efficiency boiler oxygen scavenger is prepared by the following preparation method:

[0030] Step 1: Add 40 parts of purified water into the preparation container and heat up to 35 degrees;

[0031] Step 2: Add 20 parts of dimethyl ketoxime, 15 parts of butanone oxime, and 12 parts of acetaldehyde oxime to the purified w...

Embodiment 3

[0034] The technical solution of the present invention is an environmentally friendly and efficient boiler oxygen scavenger, which is made of the following raw materials in parts by weight: 20 parts of dimethyl ketone oxime, 13 parts of butanone oxime, 10 parts of acetaldehyde oxime, 12 parts of carbazide, and dispersant 6 parts, 5 parts of pH regulator, 3 parts of catalyst, 30 parts of purified water.

[0035] The dispersant comprises polyethylene glycol 200 and citric acid. The pH regulator ethanolamine. The catalyst is a polyphenol, and the polyphenol is hydroquinone, catechol, resorcinol, 1,2,3-glucinol, 1,3,5-glucinol and 1,2 ,4-Glycinol.

[0036] An environment-friendly and high-efficiency boiler oxygen scavenger is prepared by the following preparation method:

[0037] Step 1: Add 30 parts of purified water into the preparation container and heat up to 35 degrees;

[0038] Step 2: Add 20 parts of dimethyl ketoxime, 13 parts of butanone oxime, and 10 parts of acetald...

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PUM

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Abstract

The invention discloses an environment-friendly efficient boiler deoxidant which is prepared from the following raw materials in parts by weight: 20-25 parts of dimethyl ketoxime, 13-18 parts of diacetylmonoxime, 10-12 parts of acetaldoxime, 12-17 parts of carbazide, 6-10 parts of a dispersing agent, 5-10 parts of a pH regulator, 3-7 parts of a catalyst and 30-40 parts of purified water. And the used oxime raw materials such as dimethyl ketoxime, diacetylmonoxime and acetaldoxime have relatively strong reducibility, have the characteristics of low toxicity, high efficiency and high speed in the aspect of oxygen removal, and play a role in passivation protection on the surface of the boiler. And meanwhile, the stability is high, and a good oxygen removal function is achieved within a wide temperature and pressure range. The three substances are mixed with carbazide which also has a deoxidizing effect to enhance the deoxidizing capability, and meanwhile, the dispersing agent, the catalyst and the pH regulator are added to ensure smooth and safe reaction, reduce the generation of derivatives, improve the substance stability and accelerate the preparation rate.

Description

technical field [0001] The invention relates to the technical field of boiler water treatment, and more specifically relates to an environment-friendly and high-efficiency boiler oxygen scavenger. Background technique [0002] With the development of the economy, the number of steam boilers has also increased rapidly. In the use of the boiler, the indicators of feed water and boiler water cannot be effectively controlled, the operation mode of the boiler is unreasonable, the defect of its own structure, and the maintenance of the boiler cannot keep up with other reasons, which lead to serious oxygen corrosion of the stress-bearing parts of the heating surface in the boiler. Dissolved oxygen in feed water is usually the main cause of thermal equipment corrosion. Its sources mainly include boiler feed water or hot water returned by the heat pipe network, condensate leaking into the air during cycle operation, steam turbine or condenser or seal of condensate pump Not tight, et...

Claims

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Application Information

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IPC IPC(8): C02F1/70C02F1/66C02F1/20
CPCC02F1/70C02F1/66C02F1/20
Inventor 吴春泽陈越
Owner NANJING CANUO ENERGY EQUIP
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