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An environment-friendly boiler oxygen scavenger

A scavenger, environmentally friendly technology, applied in water treatment parameter control, chemical instruments and methods, degassed water/sewage treatment, etc., can solve the problems of large amount of scavenger and general cleaning speed, and achieve good cleaning effect. , The effect of fast cleaning and low corrosion rate

Active Publication Date: 2022-01-28
南通联膦化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above phenomenon, the patent CN 110156105 A discloses an environment-friendly boiler oxygen scavenger, which is made of the following raw materials in parts by weight: 10-30 parts of oxime-containing compounds, 6-12 parts of amino heterocyclic compounds, 6-15 parts of acyl Hydrazine derivatives, 2-8 parts of hydroxylamine compounds, 12-20 parts of neutralized amines, 0.2-3 parts of catalyst and 15-70 parts of desalinated water, this invention overcomes the shortcomings of the prior art and has a passivated boiler pipeline , The function of the equipment can prevent the boiler from corrosion damage caused by the accumulation of metal deposits. average speed

Method used

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Embodiment 1

[0017] The environment-friendly boiler oxygen scavenger of this embodiment is made of the following raw materials in parts by weight: 2 parts of carbohydrazide, 45 parts of neutralizing amine and 53 parts of deionized water, wherein the neutralizing amine is obtained by mass ratio

[0018] 1:1.5:1.5:0.5 of cyclohexylamine, monoethanolamine, methoxypropylamine and aminomethyl propanol; specifically, it is made through the following steps:

[0019] Step 1: Preparation of neutralizing amine: first put cyclohexylamine into the preparation kettle, start stirring, then put in monoethanolamine, methoxypropylamine and aminomethylpropanol in sequence to make cyclohexylamine, monoethanolamine, methoxy Propylamine and aminomethyl propanol meet the quality requirements of 1:1.5:1.5:0.5, and stir for 1-2 hours to ensure that the materials are mixed evenly, and are prepared as neutralizing amine;

[0020] Step 2: Add deionized water into the reaction kettle, then add carbohydrazide, start s...

Embodiment 2

[0022] The environment-friendly boiler oxygen scavenger of this embodiment is made of the following raw materials in parts by weight: 8 parts of carbohydrazide, 45 parts of neutralizing amine and 47 parts of deionized water, wherein the neutralizing amine is obtained by mass ratio

[0023] 1:1.5:1.5:0.5 of cyclohexylamine, monoethanolamine, methoxypropylamine and aminomethyl propanol; specifically, it is made through the following steps:

[0024] Step 1: Preparation of neutralizing amine: first put cyclohexylamine into the preparation kettle, start stirring, then put in monoethanolamine, methoxypropylamine and aminomethylpropanol in sequence to make cyclohexylamine, monoethanolamine, methoxy Propylamine and aminomethyl propanol meet the quality requirements of 1:1.5:1.5:0.5, and stir for 1-2 hours to ensure that the materials are mixed evenly, and are prepared as neutralizing amine;

[0025] Step 2: Add deionized water into the reaction kettle, then add carbohydrazide, start s...

Embodiment 3

[0027] The environment-friendly boiler oxygen scavenger of this embodiment is made of the following raw materials in parts by weight: 2 parts of carbohydrazide, 45 parts of neutralizing amine and 53 parts of deionized water, wherein the neutralizing amine is obtained by mass ratio

[0028] 1.5:1.0:1.5:0.5 of cyclohexylamine, monoethanolamine, methoxypropylamine and aminomethylpropanol are mixed; specifically, it is made through the following steps:

[0029] Step 1: Preparation of neutralizing amine: first put cyclohexylamine into the preparation kettle, start stirring, then put in monoethanolamine, methoxypropylamine and aminomethylpropanol in sequence to make cyclohexylamine, monoethanolamine, methoxy Propylamine and aminomethyl propanol meet the quality requirements of 1.5:1.0:1.5:0.5, and stir for 1-2 hours to ensure that the materials are mixed evenly, and are prepared as neutralizing amine;

[0030] Step 2: Add deionized water into the reaction kettle, then add carbohydra...

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Abstract

The invention relates to an environment-friendly boiler oxygen scavenger, which is made of the following raw materials in parts by weight: 1-3 parts of carbohydrazide, 44-46 parts of neutralizing amine and 52-54 parts of deionized water, wherein the neutralizing amine It is made by mixing cyclohexylamine, monoethanolamine, methoxypropylamine and aminomethyl propanol with a mass ratio of 1:1.5:1.5:0.5. The advantage of the present invention is that: the environment-friendly boiler oxygen scavenger of the present invention, the ratio of neutralizing amine is strictly in accordance with the quality of cyclohexylamine: monoethanolamine: methoxypropylamine: aminomethyl propanol = 1: 1.5: 1.5: 0.5 Proportion, the effect of using the oxygen removal rate can be greatly improved. At the same time, the weight of carbohydrazide is strictly controlled at 1-3 parts, so as to avoid excessive addition of carbohydrazide, which will cause the solution to turn red and affect the use effect. In addition, Strictly controlling carbohydrazide, neutralizing amine and deionized water according to the weight ratio, the prepared environmentally friendly boiler oxygen scavenger has a particularly high oxygen absorption reaction speed, good cleaning effect, fast cleaning speed and low corrosion rate.

Description

technical field [0001] The invention belongs to the technical field of boiler water treatment, in particular to an environment-friendly boiler oxygen scavenger. Background technique [0002] At present, there are many methods of boiler oxygen removal, but there are many defects, such as thermal oxygen removal is easy to vaporize, high equipment requirements, large steam consumption in the boiler room, high toxicity of oxygen removal, and great harm to human body. In order to solve the above technical problems, an environment-friendly boiler oxygen scavenger is provided to overcome technical defects. [0003] Corrosion of industrial boiler water supply system is the main cause of boiler accidents and economic losses, and the losses caused by equipment or component damage caused by corrosion are huge. Dissolved oxygen in feed water is the main cause of thermal equipment corrosion. [0004] In view of the above phenomenon, the patent CN 110156105 A discloses an environment-fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/20
CPCC02F1/20C02F2209/22C02F2103/02
Inventor 梁蓉施海霞张建周树林李永明
Owner 南通联膦化工有限公司
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