CN101649460A - Special inhibiter for anticorrosion of gas pipe - Google Patents
Special inhibiter for anticorrosion of gas pipe Download PDFInfo
- Publication number
- CN101649460A CN101649460A CN200910023516A CN200910023516A CN101649460A CN 101649460 A CN101649460 A CN 101649460A CN 200910023516 A CN200910023516 A CN 200910023516A CN 200910023516 A CN200910023516 A CN 200910023516A CN 101649460 A CN101649460 A CN 101649460A
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- Prior art keywords
- inhibiter
- special
- anticorrosion
- morpholine
- diethanolamine
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a special inhibiter for the anticorrosion of gas pipes, and the inhibiter comprises the following chemical organic compounds by weight percent: 5-15% of morpholine, 10-20% of diethanol amine, 50-60% of heterocyclic organic amine and 5-20% of ethanol. The sum of the weight percent of the chemical organic compounds is 100%. All the components of the special inhibiter for theanticorrosion of gas pipes are organic components, the inhibiter has stable chemical properties, and the operation method on site is to use a metering pump to continuously fill. The special inhibiterfor the anticorrosion of gas pipes has good inhibition to the pipe corrosion caused by coal gas compositions.
Description
Technical field
The present invention relates to a kind of inhibiter, particularly a kind of at the anticorrosion special corrosion agent of gas line corrosive.
Background technology
At steel mill's blast furnace gas all is to be sent to applying units such as Steel Mill, power plant, sintering plant by its pipe network, has so just generated huge blast furnace gas transmission pipeline network.Owing to except having the portion water steam, also contain the sour gas (as: SO of more kind simultaneously in the blast furnace gas
2, HCl, CO
2Deng).Along with the reduction of temperature, when reaching the water vapor dew-point temperature, water vapor is by the gaseous state liquefy and condense into moisture film, and the sour gas in the coal gas is dissolved in the moisture film and enrichment forms the etchant solution of high density, brings stronger galvanic corrosion to pipeline; Also produce chemistry and stress corrosion in addition, these have all caused great potential safety hazard to the production of steel mill, even serious accident takes place.
Summary of the invention
At the blast furnace gas phenomenon serious to corrosive pipeline, the objective of the invention is to, provide a kind of to slow down the special corrosion agent of blast furnace gas to its corrosive pipeline.
In order to realize above-mentioned task, the present invention takes following technical solution:
The anticorrosion special corrosion agent of a kind of blast furnace gas pipeline, it is characterized in that, the anticorrosion special corrosion agent of this that makes is made of by weight percentage following chemical organic compounds: morpholine: 5-15%, diethanolamine: 10-20%, heterocycle organic amine: 50-60%, ethanol: 5%-20%, the per-cent sum of above-mentioned each chemical organic compounds is 100%.
Blast furnace gas pipeline rot-resistant special corrosion of the present invention agent is full organic composition, and stable chemical performance, on-the-spot use-pattern are to adopt volume pump to annotate continuously.Corrosion situation to blast furnace gas pipeline has good inhibition effect.
Description of drawings
Fig. 1 adds the some synoptic diagram for inhibiter;
The present invention is described in further detail below in conjunction with accompanying drawing and embodiment.
Embodiment
The present invention is according to blast furnace gas pipeline corrosive characteristics, the special blast furnace gas pipeline rot-resistant special corrosion agent of developing, this inhibiter is made of by weight percentage following chemical organic compounds: morpholine: 5-15%, diethanolamine: 10-20%, heterocycle organic amine: 50-60%, ethanol: 5%-20%, the weight percent sum of above-mentioned each chemical organic compounds is 100%.
The molecular structure of described morpholine is:
The molecular structure of diethanolamine is:
The anticorrosion special corrosion agent of blast furnace gas pipeline provided by the invention, its preparation method is: take by weighing quantitative morpholine, heterocycle organic amine, diethanolamine respectively in a certain dosing container, after thorough mixing is even, take by weighing ethanol then in proportion and pour in the dosing container, continue stirring and be dissolved in the ethanol fully until morpholine, heterocycle organic amine, diethanolamine.
Below be the embodiment that the contriver provides, need to prove, the invention is not restricted to these embodiment, the formula range in that the present invention provides all can reach purpose of the present invention.
Embodiment 1:
Taking by weighing morpholine 10%, heterocycle organic amine 60% and diethanolamine 10% by weight is placed in the dosing container, thorough mixing is even, take by weighing ethanol 20% then in proportion and pour continuation stirring in the dosing container into, be dissolved in the ethanol fully and get final product until morpholine, heterocycle organic amine, diethanolamine.
Embodiment 2:
Taking by weighing morpholine 15%, heterocycle organic amine 55% and diethanolamine 15% by weight is placed in the dosing container, thorough mixing is even, take by weighing ethanol 15% then in proportion and pour continuation stirring in the dosing container into, be dissolved in the ethanol fully and get final product until morpholine, heterocycle organic amine, diethanolamine.
Embodiment 3:
Taking by weighing morpholine 15%, heterocycle organic amine 50% and diethanolamine 20% by weight is placed in the dosing container, thorough mixing is even, take by weighing ethanol 15% then in proportion and pour in the dosing container and to continue to stir, be dissolved in the ethanol fully until morpholine, organic amine, diethanolamine and get final product.
Embodiment 4:
Taking by weighing morpholine 5%, heterocycle organic amine 60% and diethanolamine 20% by weight is placed in the dosing container, thorough mixing is even, take by weighing ethanol 15% then in proportion and pour continuation stirring in the dosing container into, be dissolved in the ethanol fully and get final product until morpholine, heterocycle organic amine, diethanolamine.
Use the anticorrosion special corrosion agent of blast furnace gas pipeline of the present invention, it adds inhibition dosage decides on the corrosive pipeline situation, generally at 100ppm～150ppm.Add the front end (Fig. 1) of agent mouth choice of location at the use gas line.This special corrosion agent exists form and mechanism to be in gas line: after the special corrosion agent quantitatively sprayed into gas line by volume pump, by waste heat moment gasification of coal gas, in-line was finished the uniform mixing with coal gas then.Mixed inhibiter in-line, no matter be gaseous state or be scattered in the aqueous liquid attitude, as long as itself and metallic contact, can both form the firmly fine and close end parent metal of one deck on its surface, the protective membrane that the other end is hydrophobic, can stop acidic medium in the coal gas and molecule to pipeline up and down inwall corrosion and wash away; On the other hand, because the waste heat overbottom pressure that it can utilize coal gas moment gasification and mixing in coal gas, therefore can increase a corrosion-resisting device by some snack made with traditional Chinese medicines that fixedly adds, as shown in Figure 1, comprise medicine storing pot, check valve is installed on the pipeline of medicine storing pot is connected with volume pump, connect tensimeter and ball valve on the pipeline of volume pump outlet, feed the coal gas Trunk Line, utilize coal gas carry function be implemented on the pipeline inwall long apart from film forming, with reach long distance, long period is slowed down the corrosive purpose.
Claims (2)
1, a kind of special inhibiter for anticorrosion of gas pipe, it is characterized in that, this inhibiter that makes is made of by weight percentage following chemical organic compounds: morpholine: 5-15%, diethanolamine: 10-20%, heterocycle organic amine: 50-60%, ethanol: 5%-20%, the weight percent sum of above-mentioned each chemical organic compounds is 100%.
2, special inhibiter for anticorrosion of gas pipe as claimed in claim 1 is characterized in that, described and diethanolamine molecule structure is respectively:
Morpholine
Diethanolamine
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910023516A CN101649460A (en) | 2009-08-06 | 2009-08-06 | Special inhibiter for anticorrosion of gas pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910023516A CN101649460A (en) | 2009-08-06 | 2009-08-06 | Special inhibiter for anticorrosion of gas pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101649460A true CN101649460A (en) | 2010-02-17 |
Family
ID=41671782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910023516A Pending CN101649460A (en) | 2009-08-06 | 2009-08-06 | Special inhibiter for anticorrosion of gas pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101649460A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178767A (en) * | 2014-08-22 | 2014-12-03 | 陕西驭腾实业有限公司 | Coking wastewater pyrolysis coal gas corrosion inhibitor and preparation method thereof |
| CN105821417A (en) * | 2016-05-18 | 2016-08-03 | 陕西驭腾实业有限公司 | Gas vapor liquid two-phase organic corrosion inhibitor and preparation method thereof |
| CN107267994A (en) * | 2017-04-19 | 2017-10-20 | 西安瑞杰油田物资实业开发有限公司 | A kind of gas gathering line multiple-effect composite corrosion inhibitor and preparation method thereof |
| CN113757555A (en) * | 2021-08-25 | 2021-12-07 | 中盐金坛盐化有限责任公司 | Method for reducing performance deterioration of pipeline material caused by hydrogen |
-
2009
- 2009-08-06 CN CN200910023516A patent/CN101649460A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178767A (en) * | 2014-08-22 | 2014-12-03 | 陕西驭腾实业有限公司 | Coking wastewater pyrolysis coal gas corrosion inhibitor and preparation method thereof |
| CN105821417A (en) * | 2016-05-18 | 2016-08-03 | 陕西驭腾实业有限公司 | Gas vapor liquid two-phase organic corrosion inhibitor and preparation method thereof |
| CN107267994A (en) * | 2017-04-19 | 2017-10-20 | 西安瑞杰油田物资实业开发有限公司 | A kind of gas gathering line multiple-effect composite corrosion inhibitor and preparation method thereof |
| CN113757555A (en) * | 2021-08-25 | 2021-12-07 | 中盐金坛盐化有限责任公司 | Method for reducing performance deterioration of pipeline material caused by hydrogen |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100217 |