CN114046447B - Method for inhibiting hydrogen embrittlement of pipeline for conveying hydrogen-containing gas - Google Patents
Method for inhibiting hydrogen embrittlement of pipeline for conveying hydrogen-containing gas Download PDFInfo
- Publication number
- CN114046447B CN114046447B CN202111328073.XA CN202111328073A CN114046447B CN 114046447 B CN114046447 B CN 114046447B CN 202111328073 A CN202111328073 A CN 202111328073A CN 114046447 B CN114046447 B CN 114046447B
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- pipeline
- embrittlement
- hydrogen embrittlement
- transporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 197
- 239000001257 hydrogen Substances 0.000 title claims abstract description 196
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 184
- 239000007789 gas Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 23
- 230000036961 partial effect Effects 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 238000003466 welding Methods 0.000 claims abstract description 21
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000007547 defect Effects 0.000 claims abstract description 13
- 230000007613 environmental effect Effects 0.000 claims abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- 239000003345 natural gas Substances 0.000 claims description 7
- 150000002431 hydrogen Chemical class 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000009172 bursting Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/12—Arrangements for supervising or controlling working operations for injecting a composition into the line
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/34—Hydrogen distribution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
Abstract
The invention relates to the technical field of pipeline transportation, in particular to a method for inhibiting the environmental hydrogen embrittlement of a pipeline for transporting hydrogen-containing gas, which prevents the pipeline from generating hydrogen embrittlement by adding carbon monoxide gas into a hydrogen transportation pipeline or a hydrogen mixing transportation pipeline. The method can effectively inhibit the occurrence of hydrogen-induced failure of pipeline steel under the conditions of no total pressure reduction and high hydrogen partial pressure, avoids catastrophic accidents caused by hydrogen-induced brittle bursting on the premise of ensuring the transportation efficiency, and is suitable for hydrogen-conveying pipelines or hydrogen-mixing conveying pipelines with E7016 welding seams, pipeline deformation and notch type defects.
Description
Technical Field
The invention relates to the technical field of pipeline transportation, in particular to a method for inhibiting hydrogen embrittlement of a pipeline for transporting hydrogen-containing gas.
Background
Hydrogen energy development and utilization is an important direction of national energy development. The rich natural gas, coal mine, wind energy and solar energy resources in western regions of China can provide hydrogen sources such as light hydrocarbon cracking hydrogen, hydrogen-containing coal gas, water electrolysis hydrogen production and the like, and the implementation of related industrialization projects predicts huge hydrogen-containing gas productivity in western regions. These hydrogen-containing gases need to be piped to eastern users, and the use of existing natural gas lines is the most economical route. The hydrogen-containing gas can make the pipeline in a high-pressure hydrogen environment in the conveying process, and hydrogen in the environment can be adsorbed on the surface of the pipeline steel and then decomposed and diffused into the pipeline steel, so that the pipeline steel is embrittled by hydrogen, and the operation safety of the pipeline is seriously threatened.
The hydrogen-containing gas is conveyed by using an in-service natural gas pipeline, and most of the current research work is to evaluate the applicability of the hydrogen-containing gas conveying, so that the hydrogen partial pressure or the hydrogen content in the conveying gas is controlled so as to prevent the pipeline from hydrogen embrittlement, and the problem of high hydrogen partial pressure gas conveying safety is difficult to solve. At present, hydrogen embrittlement of pipeline steel is restrained by depressurization and transportation or controlling the hydrogen content in gas at home and abroad, and the capability of hydrogen transportation of the pipeline is greatly limited.
Disclosure of Invention
The invention provides a method for inhibiting the environmental hydrogen embrittlement of a pipeline for conveying hydrogen-containing gas, overcomes the defects of the prior art, and provides a method for preventing the hydrogen embrittlement failure of the pipeline without reducing the total pressure and limiting the hydrogen content in a pipeline conveying medium.
The technical scheme of the invention is realized by the following measures: a method for inhibiting the hydrogen embrittlement of the pipeline for conveying hydrogen-containing gas, which comprises adding carbon monoxide gas into a hydrogen conveying pipeline or a hydrogen mixing conveying pipeline to prevent the pipeline from hydrogen embrittlement, wherein when the material of the hydrogen conveying pipeline or the hydrogen mixing conveying pipeline is X80 steel, the total pressure of the pipeline is 12MPa, the welding seam of the pipeline is E7016 welding seam, the adding amount of the carbon monoxide gas is determined according to a formula (1),
in the formula (1), y 1 Index of hydrogen embrittlement, x 1 Is the partial pressure of carbon monoxide gas, while a and b are constant at a constant hydrogen partial pressure.
The following are further optimizations and/or improvements to the above-described inventive solution:
when the material of the hydrogen conveying pipeline or the hydrogen mixing conveying pipeline is X80 steel, the total pressure of the pipeline is 12MPa, the welding seam of the pipeline adopts E7016 welding seam, the hydrogen embrittlement index is 10 percent, the amount of carbon monoxide gas required to be added is determined according to the formula (2),
in the formula (2), y 2 For the hydrogen partial pressure, x2 is the partial pressure of the carbon monoxide gas to be added.
The hydrogen conveying pipeline or the hydrogen mixing conveying pipeline adopts an in-service natural gas conveying pipeline made of X80 steel.
The method for inhibiting the environmental hydrogen embrittlement of the pipeline for conveying the hydrogen-containing gas is suitable for the hydrogen conveying pipeline or the hydrogen mixing conveying pipeline with E7016 welding seams or/and pipeline deformation or/and notch type defects.
The method can effectively inhibit the occurrence of hydrogen-induced failure of pipeline steel under the conditions of no total pressure reduction and high hydrogen partial pressure, avoids catastrophic accidents caused by hydrogen-induced brittle bursting on the premise of ensuring the transportation efficiency, and is suitable for hydrogen-conveying pipelines or hydrogen-mixing conveying pipelines with E7016 welding seams, pipeline deformation and notch type defects.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
The invention is further described below with reference to examples:
example 1: the method for inhibiting the environmental hydrogen embrittlement of the pipeline for conveying the hydrogen-containing gas comprises adding carbon monoxide gas into a hydrogen conveying pipeline or a hydrogen mixing conveying pipeline to prevent the pipeline from hydrogen embrittlement, wherein when the material of the hydrogen conveying pipeline or the hydrogen mixing conveying pipeline is X80 steel, the total pressure of the pipeline is 12MPa, the welding seam of the pipeline is an E7016 welding seam, the adding amount of the carbon monoxide gas is determined according to a formula (1),
in the formula (1), y 1 Index of hydrogen embrittlement, x 1 Is the partial pressure of carbon monoxide gas, while a and b are constant at a constant hydrogen partial pressure.
The formula (1) establishes the relationship between the total pressure and the hydrogen partial pressure at a certain time, the hydrogen embrittlement index and the addition amount of the carbon monoxide gas, and the addition amount of the carbon monoxide gas is determined according to the hydrogen embrittlement failure limit of the hydrogen conveying pipeline or the hydrogen mixing conveying pipeline.
Example 2: as an optimization of the above examples, when the material of the hydrogen transfer line or the hydrogen mixing transfer line is X80 steel, the total pressure of the line is 12MPa, the weld of the line is an E7016 weld, the hydrogen embrittlement index is 10%, the amount of carbon monoxide gas to be added is determined according to the formula (2),
in the formula (2), y 2 Is hydrogen partial pressure, x 2 Is the partial pressure of the carbon monoxide gas to be added.
In the above embodiments, the hydrogen-transporting pipeline or the hydrogen-mixing transporting pipeline may be an in-service natural gas transporting pipeline made of X80 steel.
Compared with the defects of pipeline deformation and notch, the method provided by the invention has the advantages that the effect of inhibiting hydrogen embrittlement is minimum after the same CO is added into a smooth welding seam sample, the method provided by the invention meets the requirement of inhibiting hydrogen embrittlement of a hydrogen transmission pipeline with the E7016 welding seam, and naturally meets the requirement of inhibiting hydrogen embrittlement of the hydrogen transmission pipeline with the defects of pipeline deformation and notch, namely, when the hydrogen embrittlement index is 10%, the addition amount of CO calculated according to the formula (2) is the minimum CO partial pressure required to be added for inhibiting hydrogen embrittlement failure. The method for inhibiting the environmental hydrogen embrittlement of the pipeline for conveying the hydrogen-containing gas is suitable for the hydrogen conveying pipeline or the hydrogen mixing conveying pipeline with the defects of E7016 welding seams, pipeline deformation and notch.
Hydrogen energy development and utilization are an important direction of national energy development, and hydrogen mixing transportation by using in-service pipelines is an important way for reducing the cost of hydrogen energy to a station, so that the crossover development can be expected to be realized in China. However, hydrogen is adsorbed on the surface of the pipeline steel and then decomposed and diffused into the pipeline steel, so that the pipeline steel is embrittled by hydrogen, and the operation safety of the pipeline is seriously threatened. The method for inhibiting the hydrogen embrittlement of the pipeline for conveying the hydrogen-containing gas, which is provided by the invention, can utilize the in-service steel pipeline to convey the hydrogen-containing gas, does not change the working conditions of the pipeline and the pipeline, does not influence the gas conveying efficiency of the pipeline, and has low cost, safety and high efficiency and wide popularization and application prospects.
The method can effectively inhibit the occurrence of hydrogen induced failure of pipeline steel under the condition of not reducing total pressure and high hydrogen partial pressure, and avoid catastrophic accidents caused by hydrogen induced brittle burst on the premise of ensuring the transportation efficiency.
The method is suitable for hydrogen embrittlement failure safety management when the steel pipeline is used for conveying hydrogen-containing gas.
The following is the content of the method for inhibiting the hydrogen embrittlement of the environment of the pipeline for conveying the hydrogen-containing gas, which is disclosed by the invention:
1) CO inhibiting hydrogen embrittlement effect of X80 steel base material
The X80 pipeline steel was subjected to a 12MPa high pressure environment slow strain rate tensile test in nitrogen (simulated hydrogen-free natural gas), pure hydrogen and CO-added hydrogen-mixed gas, respectively, and the results are shown in Table 1.
In Table 1, the elongation after break and the reduction of area values reflect the plasticity of the material, with higher values representing better plasticity of the material. It can be seen that the pure hydrogen environment significantly reduces the plasticity of the X80 steel relative to the nitrogen environment. Hydrogen embrittlement sensitivity was evaluated using the rate of change F in area shrinkage by hydrogen versus nitrogen:
F＝(Z N -Z H )/Z N x 100% type (1)
Z in the formula N And Z is H Respectively represent N 2 、H 2 (or H) 2 +CO) The higher the F value, the greater the hydrogen embrittlement sensitivity.
Comparing the hydrogen embrittlement indexes under different gas environments in table 1, it can be found that the addition of CO can effectively reduce the hydrogen embrittlement index of X80 steel. At the same time it can be found that CO and H 2 Partial pressure ratio (P) CO /P H2 ) In the same way, the hydrogen embrittlement index increases with the increase of the hydrogen partial pressure, which means that the amount of CO added for inhibiting the hydrogen embrittlement is not only determined by the amount of hydrogen in the mixed gas, but also P must be increased when the hydrogen partial pressure is high CO /P H2 The hydrogen embrittlement index can be made similar.
2) Influence of weld joint, pipeline deformation and notch defects on CO hydrogen embrittlement inhibition effect
The gas pipeline is connected by welding, and sometimes an elbow and a bent pipe with pre-deformation are also used, in addition, welding defects possibly exist at the welding seam, and notch defects such as corrosion pits, mechanical damage and the like appear in the pipe body in the service process. Therefore, the influence of weld joints, pre-deformation and notch defects on the CO to inhibit the hydrogen embrittlement is considered in the hydrogen transportation of the in-service pipeline.
X80 steel, E7016 weld, pre-deformed samples were prepared, both smooth and notched samples. The preparation of the pre-deformation sample is carried out on a universal tensile testing machine, and the strain capacity is 11.67% (the allowable maximum tensile strain capacity before necking); simulating that the root is not welded completely, and forming a rectangular groove notch on a welding line sample; and forming V-shaped notches on the base material and the pre-deformed sample. The various samples were subjected to a 12MPa high pressure environment slow strain rate tensile test in pure nitrogen, pure hydrogen and hydrogen gas with 0.1% CO, respectively, to obtain the reduction of area Z of each sample. Still utilize hydrogen (or H) 2 +CO) was calculated with respect to the Z value change rate due to nitrogen, and the influence of CO was evaluated by using the hydrogen embrittlement index change rate I before and after CO addition:
I＝(F H -F H+CO )/F H x 100% type (2)
The higher I value indicates that the effect of inhibiting hydrogen embrittlement is more remarkable after CO addition. The results of the effect of the weld, pre-deformation and notch on the CO effect obtained are shown in table 2.
Comparing the hydrogen embrittlement indexes of the X80 steel, the E7016 weld joint and the pre-deformation sample in different gas environments in table 2, it can be found that:
(1) The addition of CO to hydrogen can effectively reduce the hydrogen embrittlement index, whether it is X80 steel or E7016 weld, pre-deformed samples, smooth samples or notched samples.
(2) The effect of CO on inhibiting hydrogen embrittlement of notched samples is more pronounced than for smooth samples, because the higher the CO effect I is for the same amount of CO added. For example, the CO influence of the X80 steel smooth sample is 59.76%, and the CO influence of the notched sample is 74.74%; the CO influence of the pre-deformed X80 steel smooth sample is 42.06%, and the notch sample is increased to 79.89%.
(3) Under the condition of the same CO addition amount, the CO influence (I value) of the weld joint smooth sample is minimum, and more CO addition amount is needed to achieve good effect.
The method is characterized in that a law of the change of the hydrogen embrittlement index along with the CO concentration is obtained according to the research on a weld joint smooth sample, so that the minimum CO concentration capable of inhibiting the hydrogen embrittlement is obtained, and the CO concentration can also inhibit the hydrogen embrittlement of the whole pipeline.
3) Mathematical model of change rule of pipeline hydrogen embrittlement index along with CO content under different hydrogen partial pressures
And (3) taking the E7016 welding seam smooth sample as a research object, researching the change rule of the hydrogen embrittlement index of the steel pipeline along with the content of CO under different hydrogen partial pressures, and establishing a corresponding mathematical model for the change rule. The hydrogen embrittlement index of the weld joint at different CO contents at 12MPa total pressure, different hydrogen partial pressures was obtained by the test, as shown in table 3 for the case where the hydrogen partial pressures were 9MPa and 6 MPa.
According to the hydrogen embrittlement index and the corresponding CO partial pressure data obtained in the table 3, a mathematical relationship model between the two under different partial pressures is established:
wherein y is 1 Index of hydrogen embrittlement, x 1 Is the partial pressure of CO, whereas a and b are constant at a constant partial pressure of hydrogen, the values of which vary with the partial pressure of hydrogen.
In generalIt is considered that the hydrogen embrittlement index of the pipeline steel obtained by the slow drawing in the environment is not more than 25%, no failure caused by hydrogen embrittlement occurs, and the lower the hydrogen embrittlement index is, the safer is. In engineering practice, a designer or manager can set a lower hydrogen embrittlement index as a critical index F for preventing the hydrogen embrittlement failure of the pipeline based on safety consideration cr . Such as setting F cr When y=10% in formula (3) is set to 10%, the minimum CO concentration that can suppress hydrogen embrittlement at a constant hydrogen partial pressure can be calculated. Table 4 shows the CO addition amount capable of inhibiting the hydrogen embrittlement of the weld joint when the corresponding hydrogen embrittlement index is 10% under different hydrogen partial pressures.
The data in table 4 show that as the hydrogen partial pressure gradually decreases, the partial pressure of CO required to reach 10% hydrogen embrittlement index also gradually decreases. From the data in table 4, a model of the relationship between CO partial pressure and hydrogen partial pressure at 10% of the required hydrogen embrittlement index can be obtained:
wherein x2 is hydrogen partial pressure, y 2 The minimum partial pressure of CO required to be added to achieve a hydrogen embrittlement index of no more than 10%.
According to the above method, a model of the relationship between the minimum CO addition and the hydrogen partial pressure at any given hydrogen embrittlement index can be obtained.
The invention has the advantages that the hydrogen embrittlement sensitivity of the steel pipeline in hydrogen transportation can be obviously reduced by adding CO into the hydrogen-containing gas; the more CO, the smaller the hydrogen embrittlement index at a certain hydrogen partial pressure; in order to reduce the hydrogen embrittlement index below a predetermined value, the minimum addition amount of CO needs to be increased as the hydrogen partial pressure increases.
The technical characteristics form the embodiment of the invention, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
TABLE 1 mechanical Property parameters and Hydrogen embrittlement index of X80 Steel under different Hydrogen partial pressures
TABLE 2 influence of Hydrogen embrittlement sensitivity and CO at different locations of X80 pipeline
TABLE 3 Hydrogen embrittlement index of steel welds at different hydrogen and CO partial pressures
TABLE 4 minimum CO addition at different hydrogen partial pressures for a safety Hydrogen embrittlement index of 10%
| Hydrogen partial pressure/MPa | CO partial pressure/MPa |
| 9 | 0.1145 |
| 6 | 0.022 |
| 2.4 | 0.008 |
Claims (5)
1. A method for inhibiting the hydrogen embrittlement of the pipeline for delivering hydrogen-containing gas, which is characterized by comprising the step of adding carbon monoxide gas into a hydrogen delivery pipeline or a hydrogen mixing delivery pipeline to prevent the pipeline from hydrogen embrittlement, wherein when the material of the hydrogen delivery pipeline or the hydrogen mixing delivery pipeline is X80 steel, the total pressure of the pipeline is 12MPa, the welding seam of the pipeline is E7016 welding seam, the adding amount of the carbon monoxide gas is determined according to a formula (1),
in the formula (1), y 1 Index of hydrogen embrittlement, x 1 Is the partial pressure of carbon monoxide gas, while a and b are constant at a constant hydrogen partial pressure.
2. The method for suppressing the environmental hydrogen embrittlement of a hydrogen-containing gas pipeline according to claim 1, wherein when the material of the hydrogen pipeline or the hydrogen-mixed pipeline is X80 steel, the total pressure of the pipeline is 12MPa, the welding seam of the pipeline adopts E7016 welding seam, the hydrogen embrittlement index is 10%, the amount of carbon monoxide gas required to be added is determined according to the formula (2),
in the formula (2), y 2 Is hydrogen partial pressure, x 2 Is the partial pressure of the carbon monoxide gas to be added.
3. The method for suppressing the environmental hydrogen embrittlement of a pipeline for transporting hydrogen-containing gas according to claim 1 or 2, wherein the hydrogen-transporting pipeline or the hydrogen-mixing transporting pipeline is an in-service natural gas transporting pipeline made of X80 steel.
4. The method for suppressing the environmental hydrogen embrittlement of a pipeline for transporting hydrogen-containing gas according to claim 1 or 2, which is applicable to a hydrogen-transporting pipeline or a hydrogen-mixing transporting pipeline having E7016 weld joints or/and pipeline deformation or/and notch type defects.
5. A method of inhibiting environmental hydrogen embrittlement in a hydrogen-containing gas pipeline according to claim 3, which is applicable to hydrogen-transporting pipelines or hydrogen-blending transporting pipelines having E7016 weld joints or/and pipe deformation or/and notch type defects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111328073.XA CN114046447B (en) | 2021-11-10 | 2021-11-10 | Method for inhibiting hydrogen embrittlement of pipeline for conveying hydrogen-containing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111328073.XA CN114046447B (en) | 2021-11-10 | 2021-11-10 | Method for inhibiting hydrogen embrittlement of pipeline for conveying hydrogen-containing gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114046447A CN114046447A (en) | 2022-02-15 |
| CN114046447B true CN114046447B (en) | 2023-11-24 |
Family
ID=80208207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111328073.XA Active CN114046447B (en) | 2021-11-10 | 2021-11-10 | Method for inhibiting hydrogen embrittlement of pipeline for conveying hydrogen-containing gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114046447B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161085B (en) * | 2022-08-02 | 2023-06-16 | 中国石油大学(华东) | Hydrogen-resistant reconstruction method for hydrogen-oriented pipeline by using natural gas additive based on competitive adsorption |
| JP2024067747A (en) * | 2022-11-07 | 2024-05-17 | 川崎重工業株式会社 | Hydrogen transfer system and hydrogen transfer method |
| CN116399680B (en) * | 2022-11-25 | 2024-02-09 | 中国石油大学(华东) | Gas transportation method with pipeline hydrogen embrittlement protection function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01212785A (en) * | 1988-02-19 | 1989-08-25 | Hitachi Ltd | Method and device for preventing stress corrosion cracking and hydrogen embrittlement of metallic member |
| CN106855483A (en) * | 2016-12-23 | 2017-06-16 | 中国矿业大学 | Hydrogen Vapor Pressure fatigue rupture and hydrogen-induced delayed failure sensitivity test equipment and method |
| CN107764663A (en) * | 2016-08-23 | 2018-03-06 | 张宇 | A kind of hydrogen embrittlement evaluation method |
| JP2018159701A (en) * | 2017-03-22 | 2018-10-11 | 新日鐵住金株式会社 | Evaluation method of hydrogen embrittlement resistance |
| CN109469833A (en) * | 2018-10-15 | 2019-03-15 | 中石化石油工程设计有限公司 | A kind of measurement test method of coal gas pipeline infiltration hydrogen content |
| CN112666066A (en) * | 2020-12-15 | 2021-04-16 | 中国石油大学(华东) | Pipeline hydrogen embrittlement temperature threshold prediction method based on hydrogen diffusion dynamics and application |
| JP2021148459A (en) * | 2020-03-16 | 2021-09-27 | 学校法人福岡大学 | Evaluation method of hydrogen embrittlement suppression effect |
-
2021
- 2021-11-10 CN CN202111328073.XA patent/CN114046447B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01212785A (en) * | 1988-02-19 | 1989-08-25 | Hitachi Ltd | Method and device for preventing stress corrosion cracking and hydrogen embrittlement of metallic member |
| CN107764663A (en) * | 2016-08-23 | 2018-03-06 | 张宇 | A kind of hydrogen embrittlement evaluation method |
| CN106855483A (en) * | 2016-12-23 | 2017-06-16 | 中国矿业大学 | Hydrogen Vapor Pressure fatigue rupture and hydrogen-induced delayed failure sensitivity test equipment and method |
| JP2018159701A (en) * | 2017-03-22 | 2018-10-11 | 新日鐵住金株式会社 | Evaluation method of hydrogen embrittlement resistance |
| CN109469833A (en) * | 2018-10-15 | 2019-03-15 | 中石化石油工程设计有限公司 | A kind of measurement test method of coal gas pipeline infiltration hydrogen content |
| JP2021148459A (en) * | 2020-03-16 | 2021-09-27 | 学校法人福岡大学 | Evaluation method of hydrogen embrittlement suppression effect |
| CN112666066A (en) * | 2020-12-15 | 2021-04-16 | 中国石油大学(华东) | Pipeline hydrogen embrittlement temperature threshold prediction method based on hydrogen diffusion dynamics and application |
Non-Patent Citations (4)
| Title |
|---|
| CO 抑制高压临氢管线氢致脆化机理的研究;李婷婷;全国优秀硕士学位论文全文数据库 工程科技I辑;全文 * |
| CO_2分压对N80油管钢在CO_2驱注井环空环境中应力腐蚀行为的影响;崔怀云;梅鹏程;刘智勇;卢琳;;工程科学学报(第09期);全文 * |
| 利用天然气管道掺混输送氢气的可行性分析;黄明;吴勇;文习之;刘文斌;管延文;;煤气与热力(第04期);全文 * |
| 油气管道CO_2与H_2S腐蚀与防护研究进展;姚培芬;;腐蚀与防护(第05期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114046447A (en) | 2022-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114046447B (en) | Method for inhibiting hydrogen embrittlement of pipeline for conveying hydrogen-containing gas | |
| CN203669848U (en) | High-pressure chemical-agent filling skid-mounted equipment | |
| CN101254575B (en) | X80 pipeline steel submerged arc welding wire | |
| CN113639198A (en) | System and method for preventing hydrogen embrittlement of hydrogen-doped natural gas pipeline based on hydrogen-green doping and oxygen-doping | |
| CN110000517B (en) | Marine high-strain welded steel pipe based on dual-phase structure and preparation method thereof | |
| Tian et al. | Study progress on the pipeline transportation safety of hydrogen-blended natural gas | |
| CN105642728B (en) | A kind of elastomeric material liquid is expanded into the device and method of shape composite bimetal pipe | |
| Li et al. | Failure mode and the prevention and control technology of buried PE pipeline in service: state of the art and perspectives | |
| CN114398790A (en) | Calculation method for reduction of area of steel for hydrogen-doped natural gas pipeline | |
| US7610796B2 (en) | Method for adjusting specific quality characteristics and properties of pipes by means of a pressure test | |
| CN108509758B (en) | Method for calculating allowable stress of oil and gas pipeline under ditch | |
| CN102261235A (en) | High-sulfur-resistance well control equipment and welding technology thereof | |
| CN112361115A (en) | Special-shaped sleeve for repairing fillet weld defect of B-shaped sleeve | |
| CN202148880U (en) | High-sulfur-resistant well control device | |
| CN211901944U (en) | Steel pipe connecting groove pipe fitting | |
| Niu et al. | Exploration of the application of hydrogen-doped natural gas in low-pressure gas transmission and distribution networks | |
| CN112762273B (en) | Special-shaped B-shaped sleeve for repairing oil and gas conveying pipeline bent pipe defects and machining method thereof | |
| CN111872522A (en) | Submerged-arc welding process for acid-resistant pipe | |
| Xiaolu et al. | Research on standards and standard system of hydrogen pipeline in China | |
| Hval et al. | Transportation of hydrogen gas from a local plant to remote markets via high pressure submarine pipelines | |
| CN217874630U (en) | Long-distance natural gas pipeline pipe and long-distance natural gas conveying system | |
| CN108709041A (en) | It is a kind of to prevent the method for pipeline hydrogen damage and oil refining hydrogen manufacturing conversion furnace oil transfer line and concetrated pipe using this method | |
| CN109295386B (en) | X80M deep sea strain-resistant pipeline steel and pipe making process | |
| Perinet et al. | Strain Criteria for Deepwater Pipe Laying Operations | |
| Dezhi et al. | Material Evaluation and Selection of OCTG and Gathering Lines for High Sour Gas Fields |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |