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Environment-friendly boiler deoxidant

A kind of deoxidizer and environment-friendly technology, applied in the field of deoxidizer for environment-friendly boilers, it can solve the problems of large amount of deoxidizer and general cleaning speed, and achieves a good cleaning effect, fast cleaning speed and high oxygen absorption reaction speed. Effect

Active Publication Date: 2020-04-17
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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Effect test

Embodiment 1

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

[0018] 1:1.5:1.5:0.5 cyclohexylamine, monoethanolamine, methoxypropylamine and aminomethylpropanol are mixed; specifically, it is made by the following steps:

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

[0020] Step 2: Add deionized water to the reactor, then add carbohydrazide, turn on the stirring, after the carbo...

Embodiment 2

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

[0023] 1:1.5:1.5:0.5 cyclohexylamine, monoethanolamine, methoxypropylamine and aminomethylpropanol are mixed; specifically, it is made by the following steps:

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

[0025] Step 2: Add deionized water to the reactor, then add carbohydrazide, turn on the stirring, after the carbo...

Embodiment 3

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

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

[0029] Step 1: Preparation of neutralized amine: first put cyclohexylamine into the preparation kettle, turn on the stirring, and then put in monoethanolamine, methoxypropylamine and aminomethylpropanol in sequence to make cyclohexylamine, monoethanolamine, and methoxy Propylamine and aminomethylpropanol 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 evenly mixed and formulated into a neutralized amine;

[0030] Step 2: Add deionized water to the reactor, then add carbohydrazide, turn on the stirring, after the...

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Abstract

The invention relates to an environment-friendly boiler deoxidant which is prepared from the following raw materials in parts by weight: 1-3 parts of carbohydrazide, 44-46 parts of a neutralized amineand 52-54 parts of deionized water, and the neutralized amine is formed by mixing cyclohexylamine, monoethanolamine, methoxypropylamine and aminomethyl propanol in a mass ratio of 1: 1.5: 1.5: 0.5. The environment-friendly boiler deoxidant has the advantages that neutralized amine is strictly proportioned according to the cyclohexylamine, monoethanolamine, methoxypropylamine and aminomethyl massratio of 1: 1.5: 1.5: 0.5, the use effect and the deoxidization rate can be greatly improved; meanwhile, the adding weight of carbohydrazide is strictly controlled to be 1 to 3 parts, so that solutionred color, and influence on using effect caused by adding of excess carbohydrazide are avoided; in addition, carbohydrazide, the neutralized amine and deionized water are strictly controlled according to the weight ratio, and the prepared environment-friendly boiler deoxidant is particularly high in oxygen absorption reaction speed, good in cleaning effect, high in cleaning speed and low in corrosion rate.

Description

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

Claims

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Application Information

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Patent Type & Authority Applications(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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