CN104295908A - CO2 quality control and conveying pipe corrosion control method - Google Patents
CO2 quality control and conveying pipe corrosion control method Download PDFInfo
- Publication number
- CN104295908A CN104295908A CN201410499716.0A CN201410499716A CN104295908A CN 104295908 A CN104295908 A CN 104295908A CN 201410499716 A CN201410499716 A CN 201410499716A CN 104295908 A CN104295908 A CN 104295908A
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- China
- Prior art keywords
- quality control
- conveying pipe
- content
- corrosion
- impurity
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to a CO2 quality control and conveying pipe corrosion control method. The method mainly solves the problems that the retardation time is long and corrosion risks of a conveying pipe are big in the CO2 quality control in the prior art. By the adoption of the CO2 quality control and conveying pipe corrosion control method, an instrument for measuring impurity content in CO2 online is installed at the inlet position of the CO2 conveying pipe, and when the content of any impurity in the CO2 entering the conveying pipe is higher than a quality control value but lower than a high limit value, the instrument and a monitor center will automatically give an alarm, and a pipe conveying system starts a corrosion inhibitor processing system. According to the technical scheme, when the content of any impurity in the CO2 entering the conveying pipe is higher than the high limit value, the instrument and the monitor center will automatically give an alarm, and the pipe conveying system automatically cut the CO2 away, so that the problems are well solved, and the method can be used for carbon dioxide quality control and conveying pipe corrosion control.
Description
Technical field
The present invention relates to a kind of carbon dioxide quality control and conveyance conduit process for corrosion control thereof.
Background technique
Global warming has become the focus of World Focusing, CO
2plugging Technology Applied (CCS) comprises the catching of carbon, transports, and store or use, oneself is put into the technology emphasis special campaigns of state control greenhouse gas emission and mitigation of climate change.CO
2transport is CO
2from place of capture to storage place or make the intermediate hub of land used.Utilize pipeline transport to storing ground or making land used normally carry CO on a large scale
2most economical, feasible method.CN201210191439.8 discloses a kind of carbon dioxide booster transportation apparatus, the carbon dioxide storage tank of this device is connected with liquid-gas separator input end, liquid-gas separator output terminal is connected with carbon dioxide booster pump input end, carbon dioxide booster pump first output terminal leads to high-pressure carbon dioxide output terminal by heat exchanger and auxiliary heating case, is also connected with carbon dioxide storage tank by high-pressure electric control servo valve.Carbon dioxide booster pump second output terminal is connected with liquid-gas separator output terminal, carbon dioxide storage tank respectively, and carbon dioxide booster pump the 3rd output terminal is connected with carbon dioxide storage tank by low-pressure electric controlled servo valve, canned motorpump.
The CO of industrial discharge
2generally deviate from after water and various impurity through purified treatment and carry again, but the thorough extensive CO of purifying
2bring technological challenge and uneconomical, therefore, the CO of Cemented filling
2all containing certain impurity in gas, the existence of these impurity causes CO
2the risk of corrosive pipeline.Work as CO
2when pipeline has elutriation to go out, the corrosion rate of carbon steel piping can reach about 20mm/y; If CO
2in there is SO
2, NO
2or O
2, the corrosion condition of pipeline is more complicated.Therefore, control to enter CO
2each impurity content of pipeline is the important measures avoiding pipeline to be corroded.
In addition, CO is entered
2the CO of pipeline
2quality is also subject to having a strong impact on of the treatment process of upstream process factory, can not keep constant.Once the treatment process fluctuation for the treatment of plant, enter the CO of pipeline
2middle impurity content just may exceed level of control.The method that existing gaseous mass controls is to CO in specific time interval
2gas is sampled, then analyzes in laboratory, to discovery CO
2makings whether meet quality control requirement life period retardation phenomenon, to the gaseous mass during double sampling without any surveillance and control measure.
The present invention solves this problem targetedly.
Summary of the invention
Technical problem to be solved by this invention is CO in prior art
2quality control there is longer lag time, problem that conveyance conduit corrosion risk is larger, a kind of new carbon dioxide quality control and conveyance conduit process for corrosion control thereof are provided.The method is used for, in carbon dioxide quality control and conveyance conduit corrosion control thereof, having CO
2the advantage that quality control lag time is very short, conveyance conduit corrosion risk is less.
For solving the problem, the technical solution used in the present invention is as follows: a kind of carbon dioxide quality control and conveyance conduit process for corrosion control thereof, at CO
2on-line measurement CO is installed in conveyance conduit ingress
2the instrument of middle impurity content, when entering the CO of conveyance conduit
2in the content of any one impurity higher than quality control value lower than ceiling value time, the equal automatic alarm of instrument and Surveillance center, pipe-line transportation system starts corrosion inhibitor processing system; When entering the CO of conveyance conduit
2in the content of any one impurity higher than ceiling value time, the equal automatic alarm of instrument and Surveillance center, pipe-line transportation system cuts out CO automatically
2.
In technique scheme, preferably, described impurity comprises water, SO
2, NO
2and O
2.
The present invention adopts the method for on-line monitoring, once CO
2quality do not meet quality control requirement, can make an immediate response and take measures, avoiding the corrosion of pipeline, achieving good technique effect.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Embodiment
[embodiment 1]
At CO
2entrance place installs can measure CO
2middle water, SO
2, NO
2and O
2the instrument of content, on-line monitoring CO
2makings, by setting CO
2cO under delivery temperature pressure condition
2in the quality control level of each impurity, as water content C1, SO
2content C2, NO
2content C3 and O
2content C4.Once enter the CO of pipeline
2the contents level of middle any one impurity higher than setting value, the equal automatic alarm of instrument and Surveillance center.This illustrates CO
2disposal quality defective, exist and cause the risk of corrosive pipeline.
If the water content of actual measurement is greater than CI1, or SO
2content is greater than CI2, or NO
2content is greater than CI3 or O
2content is greater than CI4, and pipe-line transportation system blocks CO automatically
2enter pipeline, CO
2need to re-start process, wherein C1<CI1, C2<CI2, C3<CI3, C4<CI4.If the water content of actual measurement is between C1 ~ CI1, or SO
2content is between C2 ~ CI2, or NO
2content is between C3 ~ CI3 or O
2content between C4 ~ CI4, CO
2can continue to enter pipeline, but corrosion inhibitor processing system need be started, avoid CO
2conveyance conduit is corroded, and this can be avoided adding corrosion inhibitor to pipe interior continuously, increases the utilization ratio of corrosion inhibitor and reduces corrosion control cost, and ensureing the safety of pipeline.
Claims (2)
1. carbon dioxide quality control and a conveyance conduit process for corrosion control thereof, at CO
2on-line measurement CO is installed in conveyance conduit ingress
2the instrument of middle impurity content, when entering the CO of conveyance conduit
2in the content of any one impurity higher than quality control value lower than ceiling value time, the equal automatic alarm of instrument and Surveillance center, pipe-line transportation system starts corrosion inhibitor processing system; When entering the CO of conveyance conduit
2in the content of any one impurity higher than ceiling value time, the equal automatic alarm of instrument and Surveillance center, pipe-line transportation system cuts out CO automatically
2.
2. carbon dioxide quality control and conveyance conduit process for corrosion control thereof according to claim 1, is characterized in that described impurity comprises water, SO
2, NO
2and O
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410499716.0A CN104295908A (en) | 2014-09-25 | 2014-09-25 | CO2 quality control and conveying pipe corrosion control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410499716.0A CN104295908A (en) | 2014-09-25 | 2014-09-25 | CO2 quality control and conveying pipe corrosion control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104295908A true CN104295908A (en) | 2015-01-21 |
Family
ID=52315756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410499716.0A Pending CN104295908A (en) | 2014-09-25 | 2014-09-25 | CO2 quality control and conveying pipe corrosion control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295908A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822901A (en) * | 2016-05-29 | 2016-08-03 | 济南科慧页岩化工技术有限公司 | Pipeline for capturing and utilizing CO2 produced through metallurgy and laying working method of pipeline |
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| JPH08178186A (en) * | 1994-12-22 | 1996-07-12 | Iwatani Internatl Corp | Control method for transfer of liquefied gas to liquefied gas using apparatus |
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| CN101358687A (en) * | 2007-08-01 | 2009-02-04 | 上海正帆超净技术有限公司 | Gas safety conveying method |
| US20110220207A1 (en) * | 2010-03-09 | 2011-09-15 | Bronner Raymond A | Solenoid gas meter mounting bracket valve |
| CN102872689A (en) * | 2012-08-20 | 2013-01-16 | 中国计量学院 | Infrared differential spectroscopy-based biogas detection and purification control system |
| CN203489006U (en) * | 2013-09-29 | 2014-03-19 | 淄博安益矿用设备有限公司 | Safe conveying system for coalbed methane |
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2014
- 2014-09-25 CN CN201410499716.0A patent/CN104295908A/en active Pending
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|---|---|---|---|---|
| JPH08178186A (en) * | 1994-12-22 | 1996-07-12 | Iwatani Internatl Corp | Control method for transfer of liquefied gas to liquefied gas using apparatus |
| CN1338628A (en) * | 2000-08-10 | 2002-03-06 | 同济大学 | Monitor and alarm system for multi-component gas |
| CN101358687A (en) * | 2007-08-01 | 2009-02-04 | 上海正帆超净技术有限公司 | Gas safety conveying method |
| US20110220207A1 (en) * | 2010-03-09 | 2011-09-15 | Bronner Raymond A | Solenoid gas meter mounting bracket valve |
| CN102872689A (en) * | 2012-08-20 | 2013-01-16 | 中国计量学院 | Infrared differential spectroscopy-based biogas detection and purification control system |
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| Title |
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| 左甜等: "临界CO2输送管道的腐蚀研究进展", 《石油化工腐蚀与防护》 * |
| 蒋秀等: "超临界CO2管道输送与安全", 《油气储运》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822901A (en) * | 2016-05-29 | 2016-08-03 | 济南科慧页岩化工技术有限公司 | Pipeline for capturing and utilizing CO2 produced through metallurgy and laying working method of pipeline |
| CN105822901B (en) * | 2016-05-29 | 2018-11-13 | 济南科慧页岩化工技术有限公司 | It is a kind of to trap, metallurgy is utilized to generate CO2Pipeline and its be laid with working method |
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| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |
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| RJ01 | Rejection of invention patent application after publication |