CN106644870A - A mixed fuel oil agent for evaluating pipeline permeability and application thereof - Google Patents
A mixed fuel oil agent for evaluating pipeline permeability and application thereof Download PDFInfo
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- CN106644870A CN106644870A CN201510713258.0A CN201510713258A CN106644870A CN 106644870 A CN106644870 A CN 106644870A CN 201510713258 A CN201510713258 A CN 201510713258A CN 106644870 A CN106644870 A CN 106644870A
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- 239000000295 fuel oil Substances 0.000 title claims abstract description 48
- 230000035699 permeability Effects 0.000 title claims abstract description 35
- 239000003795 chemical substances by application Substances 0.000 title abstract description 5
- 150000001335 aliphatic alkanes Chemical class 0.000 claims abstract description 19
- 229920000573 polyethylene Polymers 0.000 claims abstract description 17
- -1 polyethylene Polymers 0.000 claims abstract description 16
- 239000004698 Polyethylene Substances 0.000 claims abstract description 15
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 14
- 150000001298 alcohols Chemical class 0.000 claims abstract description 12
- 239000003153 chemical reaction reagent Substances 0.000 claims description 54
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 33
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 32
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 24
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- GXDHCNNESPLIKD-UHFFFAOYSA-N 2-methylhexane Natural products CCCCC(C)C GXDHCNNESPLIKD-UHFFFAOYSA-N 0.000 claims description 6
- DMEGYFMYUHOHGS-UHFFFAOYSA-N cycloheptane Chemical compound C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 claims description 6
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 claims description 5
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- WJTCGQSWYFHTAC-UHFFFAOYSA-N cyclooctane Chemical compound C1CCCCCCC1 WJTCGQSWYFHTAC-UHFFFAOYSA-N 0.000 claims description 2
- 239000004914 cyclooctane Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 10
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 abstract description 2
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 230000004580 weight loss Effects 0.000 description 33
- 230000008859 change Effects 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention relates to the field of chemical engineering, particularly a mixed fuel oil agent and application thereof. The mixed fuel oil agent includes C6-C8 aromatic hydrocarbons, C7-C8 alkanes, and alcohols shown as a R1OH, wherein the R1 is C1-C3 alkyl. The fuel oil agent used for evaluating permeability of polyethylene compound pipelines used in gas stations in China is advantaged by being highly targeted, higher in testing efficiency, and the like.
Description
Technical field
The present invention relates to chemical field, more particularly to a kind of blended fuel oil reagent for evaluating pipeline permeability and its application.
Background technology
Conventional gasoline station metallic conduit is also easy to produce corrosion failure, causes leaking gasoline, pollution environment and underground water.With
Continuous improvement of the various countries to environmental requirement, metallic conduit is progressively substituted by plastic conduit, particularly polyethylene compound pipe
Road system, has been widely used in gas station.
Oil gas is that comparison is high for the permeability of plastics, in order to avoid increasing potential safety hazard and pollution ring after hydrocarbon seepage
Border, at present mostly plastic conduit reaches the purpose of antiseepage using internally increasing by the way of barrier layer.
Permeability is one of the important test event in polyethylene composite oil pipeline road, basic skills be fuel oil reagent is filled to it is poly-
In ethene compound pipeline complex pipeline sample, and two ends are sealed.Advised over time by monitoring the overall weight of pipe samples
Rule, calculates permeability of the oil gas by tube wall.
But because the domestic species with foreign countries fuel oils and quality differ larger, the component and its proportioning of similar fuel oil also phase not to the utmost
Together, using the fuel oil reagent of existing foreign standard result of the test can be caused not to be inconsistent with domestic actually used situation；Additionally, due to modeling
The infiltration rate of material itself is relatively low, and test period is longer, so when fuel oil reagent is prepared, how to select suitable combustion
Oil ingredient and proportioning, for test result, shortening test period and practical application have vital impact.
Generally the fuel oil permeability of common polythene pipeline is more than 5g/m2D, far above the basic demand of gas station's pipe leakage rate
(standard is 0-0.2g/m2d).It is swelling that composition in other fuel oil, such as alkane, aromatic series can cause plastic material to occur,
The problems such as decomposition, especially oxide can cause the hydraulic performance decline of plastic material, particularly barrier material.And it is international at present
Upper general fuel oil reagent is the mixture for directly using existing fuel oil or aromatic hydrocarbon and alkane, and its specific aim is not relatively strong,
The scope of application is narrower, while the test period is long, it is less efficient, it is impossible to meet domestic existing gas station for polyethylene is compound
The test request of pipeline.
The content of the invention
Present invention aim to address currently used for the fuel oil reagent specific aim for evaluating gas station polyethylene compound pipe road permeability
The relatively single, scope of application is narrower, the test period is long and less efficient problem, therefore, the evaluation that the present invention is provided
The fuel oil reagent of domestic gas station's polyethylene compound pipe road permeability has that specific aim is higher, the scope of application is wider, during test
Between it is short, the advantages of the degree of accuracy is high, disclosure satisfy that domestic existing gas station will for the test in polyethylene compound pipe road.
The present inventor's further investigation finds, according to domestic fuel oil feature, by the aromatic hydrocarbon of C6-C8 and the alkane of C7-C8
Hydrocarbon, and a certain amount of alcohols (R1OH) or alcohol-based mixtures carry out collocation can be used as a kind of fuel oil reagent, this combination
Substantially fuel oil can be covered to be affected and osmotic effect, and specific aim is stronger, and with synergy so that the blended fuel oil examination
Agent has good effect for evaluating polyethylene compound pipe road permeability.
Therefore, the invention provides a kind of blended fuel oil reagent, it includes the alkane of the aromatic hydrocarbon of C6-C8, C7-C8, with
And formula such as R1The alcohols of OH；Wherein, R1For the alkyl of C1-C3.
In a specific embodiment, at least one of the aromatic hydrocarbon of the C6-C8 in benzene, toluene and dimethylbenzene, excellent
Elect toluene as.
In a specific embodiment, the alkane of the C7-C8 can for normal heptane, isoheptane, cycloheptane, normal octane,
At least one in isooctane, cyclooctane, preferably isooctane.
In a specific embodiment, the alcohols is ethanol and/or methyl alcohol.
In a specific embodiment, the ratio of the volume of the methyl alcohol and ethanol is (1-2):(1-2), it is preferably in a proportion of
1:(1-2)。
In a specific embodiment, the ratio of the volume of the alkane of the aromatic hydrocarbon of the C6-C8 and C7-C8 is (1-2):
(1-2), it is preferably in a proportion of (1-2):1.
In a specific embodiment, the aromatic hydrocarbon of the C6-C8, the alkane of C7-C8 and formula such as R1The alcohols of OH
Volume ratio be (2-4):(2-4):(2-5).
In a specific embodiment, the aromatic hydrocarbon of the C6-C8, the alkane of C7-C8 and formula such as R1The alcohols of OH
Volume ratio be (6-7):(6-7):(6-8).
Additionally, present invention also offers any described blended fuel oil reagent as above in polyethylene pipe permeability should
With particularly for evaluating gas station's polyethylene pipe permeability.
Description of the drawings
Fig. 1 shows sample 1#, using reagent A-I, the time for obtaining and weight loss curves figure.
Fig. 2 shows the time and weight loss curves figure that sample 1# and sample 2# obtained using reagent A.
Specific embodiment
The specific embodiment of the present invention is described in detail below.It should be appreciated that described herein preferably have
Body embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The present invention provides a kind of blended fuel oil reagent, and the reagent is by the aromatic hydrocarbon of C6-C8, the alkane of C7-C8 and alcohols
(R1OH) or alcohol-based mixtures composition, its volume proportion is：(2-4):(2-4):(2-5), wherein, R1For C1-C3
Alkyl.
Pipe samples used in following examples refer to table 1.
Table 1
| Sample number into spectrum | The place of production | Specification | Explanation |
| 1# | External import | dn63 | Polyethylene compound pipe road |
| 2# | Domestic production | dn63 | Common polythene pipeline |
Embodiment 1
Configuration blended fuel oil reagent A：It is by volume 7 with graduated cylinder:7:4:2 ratio measures respectively toluene, isooctane, ethanol
And methyl alcohol, it is stored in after being well mixed stand-by in reagent bottle.
Pipe samples weight change is recorded：From sample 1#, using corrosion resistant end seal, pipeline section (400mm) sample is first closed
Product one end, sample is injected to the 90% of total capacity by blended fuel oil reagent, selects the pipeline section of sample 1# the reason for not the filling to be
Give blended fuel oil expanded by heating reserved certain space, then seal the other end, sample is placed in the environment of 23 DEG C of temperature,
Every 7 angel weighs with scale once the sample quality, and reading is accurate to 0.1g, the results are shown in Table 2.
Trial curve and result are calculated：Rate of weight loss is relevant with material and pipe structure, tests after a period of time, weight
Amount loss rate will rise to a steady state value, reach " stable state " or slope is constant, and the mass change of measure the results are shown in Table
1.Take the data after stable state and draw time and weight loss curves figure, see Fig. 1.Slope of a curve is obtained from Fig. 1,
Namely rate of weight loss (unit：G/d), then surface area A (A=π LD, unit of the rate of weight loss divided by tubing：
m2), obtain the final permeability (unit of sample：g/m2D), 6 are shown in Table.
Table 2
| Sequence number | Time (h) | Weight (g) | Weight change (g) |
| 1 | 0 | 2229.7 | 0.0 |
| 2 | 169 | 2229.7 | 0.0 |
| 3 | 330 | 2229.7 | 0.0 |
| 4 | 499 | 2229.6 | 0.1 |
| 5 | 665 | 2229.7 | 0.0 |
| 6 | 837 | 2229.6 | 0.1 |
| 7 | 992 | 2229.6 | 0.1 |
| 8 | 1163 | 2229.6 | 0.1 |
| 9 | 1332 | 2229.6 | 0.1 |
| 10 | 1501 | 2229.7 | 0.0 |
| 11 | 1669 | 2229.6 | 0.1 |
| 12 | 1834 | 2229.5 | 0.2 |
| 13 | 2004 | 2229.5 | 0.2 |
| 14 | 2171 | 2229.5 | 0.2 |
| 15 | 2359 | 2229.6 | 0.1 |
| 16 | 2530 | 2229.5 | 0.2 |
| 17 | 2695 | 2229.4 | 0.3 |
| 18 | 2868 | 2229.4 | 0.3 |
| 19 | 3045 | 2229.4 | 0.3 |
| 20 | 3210 | 2229.3 | 0.4 |
| 21 | 3376 | 2229.3 | 0.4 |
| 22 | 3547 | 2229.4 | 0.3 |
| 23 | 3727 | 2229.3 | 0.4 |
| 24 | 3895 | 2229.2 | 0.5 |
| 25 | 4061 | 2229.2 | 0.5 |
| 26 | 4232 | 2229.3 | 0.4 |
| 27 | 4400 | 2229.2 | 0.5 |
| 28 | 4567 | 2229.3 | 0.4 |
| 29 | 4736 | 2229.2 | 0.5 |
| 30 | 4902 | 2229.1 | 0.6 |
| 31 | 5076 | 2229.1 | 0.6 |
Embodiment 2
Configuration blended fuel oil reagent B：With graduated cylinder according to volume proportion be 3:3:4 ratio measure respectively dimethylbenzene, normal heptane,
Ethanol, and after being well mixed, be stored in stand-by in reagent bottle；
Recorded from the pipe samples weight change of sample 1#, the weight change value in test is shown in Table 3, then draw the time with
Weight loss curves figure, is shown in Fig. 1.Slope of a curve, that is, rate of weight loss (unit are obtained from Fig. 1：G/d),
Then surface area A (A=π LD, unit of the rate of weight loss divided by tubing：m2), obtain the final permeability of sample (single
Position：g/m2D), 6 are shown in Table.
Other are with embodiment 1.
Table 3
| Sequence number | Time (h) | Weight (g) | Weight change (g) |
| 1 | 0 | 2312.5 | 0.0 |
| 2 | 169 | 2312.5 | 0.0 |
| 3 | 330 | 2312.5 | 0.0 |
| 4 | 499 | 2312.5 | 0.0 |
| 5 | 665 | 2312.5 | 0.0 |
| 6 | 837 | 2312.5 | 0.0 |
| 7 | 992 | 2312.5 | 0.0 |
| 8 | 1163 | 2312.5 | 0.0 |
| 9 | 1332 | 2312.4 | 0.1 |
| 10 | 1501 | 2312.5 | 0.0 |
| 11 | 1669 | 2312.4 | 0.1 |
| 12 | 1834 | 2312.5 | 0.0 |
| 13 | 2004 | 2312.5 | 0.0 |
| 14 | 2171 | 2312.5 | 0.0 |
| 15 | 2359 | 2312.5 | 0.0 |
| 16 | 2530 | 2312.5 | 0.0 |
| 17 | 2695 | 2312.4 | 0.1 |
| 18 | 2868 | 2312.4 | 0.1 |
| 19 | 3045 | 2312.4 | 0.1 |
| 20 | 3210 | 2312.5 | 0.0 |
| 21 | 3376 | 2312.4 | 0.1 |
| 22 | 3547 | 2312.4 | 0.1 |
| 23 | 3727 | 2312.4 | 0.1 |
| 24 | 3895 | 2312.4 | 0.1 |
| 25 | 4061 | 2312.5 | 0.0 |
| 26 | 4232 | 2312.4 | 0.1 |
| 27 | 4400 | 2312.4 | 0.1 |
| 28 | 4567 | 2312.3 | 0.2 |
| 29 | 4736 | 2312.4 | 0.1 |
| 30 | 4902 | 2312.4 | 0.1 |
| 31 | 5076 | 2312.3 | 0.2 |
Embodiment 3
Configuration blended fuel oil reagent C：With graduated cylinder according to volume proportion be 1:2:1 ratio measure respectively benzene, isoheptane, positive third
Alcohol, and after being well mixed, be stored in stand-by in reagent bottle；
Weight change record is carried out from the pipe samples of sample 1#, time and weight loss curves figure is then drawn, Fig. 1 is seen.
Slope of a curve, that is, rate of weight loss (unit are obtained from Fig. 1：G/d), then rate of weight loss divided by tubing
Surface area A (A=π LD, unit：m2), obtain the final permeability (unit of sample：g/m2D), 6 are shown in Table.
Other are with embodiment 1.
Embodiment 4
Configuration blended fuel oil reagent D：With graduated cylinder according to volume proportion be 2:4:5 ratio measure respectively toluene, normal octane,
Isopropanol, and after being well mixed, be stored in stand-by in reagent bottle；
Weight change record is carried out from the pipe samples of sample 1#, time and weight loss curves figure is then drawn, Fig. 1 is seen.
Slope of a curve, that is, rate of weight loss (unit are obtained from Fig. 1：G/d), then rate of weight loss divided by tubing
Surface area A (A=π LD, unit：m2), obtain the final permeability (unit of sample：g/m2D), 6 are shown in Table.
Other are with embodiment 1.
Embodiment 5
Configuration blended fuel oil reagent E：With graduated cylinder according to volume proportion be 2:1:1 ratio measure respectively dimethylbenzene, cycloheptane,
Methyl alcohol, and after being well mixed, be stored in stand-by in reagent bottle；
Weight change record is carried out from the pipe samples of sample 1#, time and weight loss curves figure is then drawn, Fig. 1 is seen.
Slope of a curve, that is, rate of weight loss (unit are obtained from Fig. 1：G/d), then rate of weight loss divided by tubing
Surface area A (A=π LD, unit：m2), obtain the final permeability (unit of sample：g/m2D), 6 are shown in Table.
Other are with embodiment 1.
Embodiment 6
Configuration blended fuel oil reagent F：With graduated cylinder according to volume proportion be 4:2:3.4:1.7 ratio measures respectively toluene, different pungent
Alkane, methyl alcohol and ethanol, and after being well mixed, be stored in stand-by in reagent bottle；
Weight change record is carried out from the pipe samples of sample 1#, time and weight loss curves figure is then drawn, Fig. 1 is seen.
Slope of a curve, that is, rate of weight loss (unit are obtained from Fig. 1：G/d), then rate of weight loss divided by tubing
Surface area A (A=π LD, unit：m2), obtain the final permeability (unit of sample：g/m2D), 6 are shown in Table.
Other are with embodiment 1.
Embodiment 7
Configuration blended fuel oil reagent G：With graduated cylinder according to volume proportion be 7:6:3:6 ratio measure respectively dimethylbenzene, normal heptane,
Ethanol and methyl alcohol, and after being well mixed, be stored in stand-by in reagent bottle；
Weight change record is carried out from the pipe samples of sample 1#, time and weight loss curves figure is then drawn, Fig. 1 is seen.
Slope of a curve, that is, rate of weight loss (unit are obtained from Fig. 1：G/d), then rate of weight loss divided by tubing
Surface area A (A=π LD, unit：m2), obtain the final permeability (unit of sample：g/m2D), 6 are shown in Table.
Other are with embodiment 1.
Embodiment 8
Configuration blended fuel oil reagent H：It is by volume 8 with graduated cylinder:4:3:3 ratio measures respectively toluene, normal octane, methyl alcohol
And ethanol, and be stored in after being well mixed stand-by in reagent bottle.
Weight change record is carried out from the pipe samples of sample 1#, time and weight loss curves figure is then drawn, Fig. 1 is seen.
Slope of a curve, that is, rate of weight loss (unit are obtained from Fig. 1：G/d), then rate of weight loss divided by tubing
Surface area A (A=π LD, unit：m2), obtain the final permeability (unit of sample：g/m2D), 6 are shown in Table.
Other are with embodiment 1.
Comparative example 1
This comparative example is used to illustrate using traditional aromatic hydrocarbon and alkane blended fuel oil reagent in prior art, and without
In the case of oxide, the effect of gas station's polyethylene pipe permeability is evaluated.
Configuration blended fuel oil reagent I：It is by volume 1 with graduated cylinder:1 ratio measures respectively toluene and isooctane, and mixes equal
It is stored in after even stand-by in reagent bottle.
Pipe samples weight change is recorded：From sample 1#, the weight change value in test is shown in Table 4, then draw the time with
Weight loss curves figure, is shown in Fig. 1.Slope of a curve, that is, rate of weight loss (unit are obtained from Fig. 1：G/d),
Then surface area A (A=π LD, unit of the rate of weight loss divided by tubing：m2), obtain the final permeability of sample (single
Position：g/m2D), 6 are shown in Table.
Other are with embodiment 1.
Table 4
| Sequence number | Time (h) | Weight (g) | Weight change (g) |
| 1 | 0 | 2285.7 | 0.0 |
| 2 | 175 | 2285.7 | 0.0 |
| 3 | 331 | 2285.7 | 0.0 |
| 4 | 501 | 2285.7 | 0.0 |
| 5 | 662 | 2285.7 | 0.0 |
| 6 | 829 | 2285.7 | 0.0 |
| 7 | 1001 | 2285.7 | 0.0 |
| 8 | 1167 | 2285.6 | 0.1 |
| 9 | 1342 | 2285.7 | 0.0 |
| 10 | 1492 | 2285.7 | 0.0 |
| 11 | 1689 | 2285.7 | 0.0 |
| 12 | 1834 | 2285.7 | 0.0 |
| 13 | 2000 | 2285.6 | 0.1 |
| 14 | 2168 | 2285.7 | 0.0 |
| 15 | 2351 | 2285.7 | 0.0 |
| 16 | 2540 | 2285.7 | 0.0 |
| 17 | 2700 | 2285.7 | 0.0 |
| 18 | 2870 | 2285.7 | 0.0 |
| 19 | 3042 | 2285.7 | 0.0 |
| 20 | 3211 | 2285.7 | 0.0 |
| 21 | 3378 | 2285.7 | 0.0 |
| 22 | 3537 | 2285.7 | 0.0 |
| 23 | 3735 | 2285.7 | 0.0 |
| 24 | 3901 | 2285.7 | 0.0 |
| 25 | 4070 | 2285.6 | 0.1 |
| 26 | 4233 | 2285.7 | 0.0 |
| 27 | 4415 | 2285.7 | 0.0 |
| 28 | 4580 | 2285.7 | 0.0 |
| 29 | 4741 | 2285.6 | 0.1 |
| 30 | 4902 | 2285.7 | 0.0 |
| 31 | 5076 | 2312.6 | 0.1 |
Comparative example 2
Pipe samples weight change is recorded：From sample 2#, the weight change value in test is shown in Table 5, then draw the time with
Weight loss curves figure, is shown in Fig. 2.Slope of a curve, that is, rate of weight loss (unit are obtained from Fig. 2：G/d),
Then surface area A (A=π LD, unit of the rate of weight loss divided by tubing：m2), obtain the final permeability of sample (single
Position：g/m2D), 6 are shown in Table.
Other are with embodiment 1.
Table 5
| Sequence number | Time (h) | Weight (g) | Weight change (g) |
| 1 | 0 | 2210.3 | 0.0 |
| 2 | 169 | 2203.6 | 6.7 |
| 3 | 330 | 2198.1 | 12.2 |
| 4 | 499 | 2193.4 | 16.9 |
| 5 | 665 | 2186.1 | 24.2 |
| 6 | 837 | 2178.1 | 32.2 |
| 7 | 992 | 2174.9 | 35.4 |
| 8 | 1163 | 2168.7 | 41.6 |
| 9 | 1332 | 2160.0 | 50.3 |
| 10 | 1501 | 2155.1 | 55.2 |
| 11 | 1669 | 2152.0 | 58.3 |
| 12 | 1834 | 2143.6 | 66.7 |
| 13 | 2004 | 2138.3 | 72.0 |
| 14 | 2171 | 2132.0 | 78.3 |
| 15 | 2359 | 2123.7 | 86.6 |
| 16 | 2530 | 2119.8 | 90.5 |
| 17 | 2695 | 2113.2 | 97.1 |
| 18 | 2868 | 2108.7 | 101.6 |
| 19 | 3045 | 2101.5 | 108.8 |
| 20 | 3210 | 2095.2 | 115.1 |
| 21 | 3376 | 2090.5 | 119.8 |
| 22 | 3547 | 2083.1 | 127.2 |
| 23 | 3727 | 2078.6 | 131.7 |
| 24 | 3895 | 2071.1 | 139.2 |
| 25 | 4061 | 2064.5 | 145.8 |
| 26 | 4232 | 2057.4 | 152.9 |
| 27 | 4400 | 2052.5 | 157.8 |
| 28 | 4567 | 2045.8 | 164.5 |
| 29 | 4736 | 2040.0 | 170.3 |
| 30 | 4902 | 2035.5 | 174.8 |
| 31 | 5076 | 2029.1 | 181.2 |
Table 6
Can be seen that for sample 1# by the result of the test of table 6, using the blended fuel oil reagent of reagent A-H,
All there is certain osmotic effect, that is to say, that effective permeability result can be obtained；And in comparative example 1, using combustion
Equally it is 1# samples during oily reagent I, its permeability is almost nil, within the relatively short time, root cannot be had
The permeability of effect, so this common reagent is not used to evaluate polyethylene compound pipe road permeability.And in reagent A-H
As a result in, reagent A obtains that permeability is slightly higher, and evaluation effect is relatively more preferable, is also one of optimization formula in this patent.
The contrast of curve in the permeability obtained by comparative example 2 and Fig. 2, for sample 2#, its result is far above
1# multiple tube samples, it has reached 5.6g/m using the permeability that reagent J is obtained2D, substantially conforms to its reality for not adding barrier layer
Border situation, while can also reflect that reagent J is capable of the permeability of effectively evaluating pipeline.In sum, it is provided by the present invention
Blended fuel oil reagent can effectively evaluate gas station's permeability in polyethylene compound pipe road at short notice.
Claims (10)
1. it is a kind of evaluate pipeline permeability blended fuel oil reagent, it includes the alkane of the aromatic hydrocarbon of C6-C8, C7-C8, with
And formula such as R1The alcohols of OH；Wherein, R1For the alkyl of C1-C3.
2. blended fuel oil reagent according to claim 1, it is characterised in that the aromatic hydrocarbon of the C6-C8 selected from benzene,
At least one in toluene and dimethylbenzene.
3. blended fuel oil reagent according to claim 1 and 2, it is characterised in that the alkane of the C7-C8 is positive heptan
At least one in alkane, isoheptane, cycloheptane, normal octane, isooctane and cyclooctane.
4. the blended fuel oil reagent according to any one in claim 1-3, it is characterised in that the alcohols is methyl alcohol
And/or ethanol.
5. blended fuel oil reagent according to claim 4, it is characterised in that the alcohols is the mixing of methyl alcohol and ethanol
The ratio of the volume of thing, wherein methyl alcohol and ethanol is (1-2):(1-2), the ratio of the preferably volume of the methyl alcohol and ethanol is
1:(1-2)。
6. the blended fuel oil reagent according to any one in claim 1-5, it is characterised in that the virtue of the C6-C8
The ratio of the volume of the alkane of fragrant hydrocarbon and C7-C8 is (1-2):(1-2).
7. blended fuel oil reagent according to claim 6, it is characterised in that the aromatic hydrocarbon and C7-C8 of the C6-C8
Alkane volume ratio be (1-2):1.
8. the blended fuel oil reagent according to any one in claim 1-7, it is characterised in that the virtue of the C6-C8
Fragrant hydrocarbon, the alkane of C7-C8 and formula such as R1The ratio of the volume of the alcohols of OH is (2-4):(2-4):(2-5).
9. blended fuel oil reagent according to claim 8, it is characterised in that the aromatic hydrocarbon of the C6-C8, C7-C8
Alkane and formula such as R1The ratio of the volume of the alcohols of OH is (6-7):(6-7):(6-8).
10. application of the blended fuel oil reagent according to any one in claim 1-9 in polyethylene pipe permeability.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713258.0A CN106644870A (en) | 2015-10-28 | 2015-10-28 | A mixed fuel oil agent for evaluating pipeline permeability and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713258.0A CN106644870A (en) | 2015-10-28 | 2015-10-28 | A mixed fuel oil agent for evaluating pipeline permeability and application thereof |
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| CN201510713258.0A Pending CN106644870A (en) | 2015-10-28 | 2015-10-28 | A mixed fuel oil agent for evaluating pipeline permeability and application thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285012A (en) * | 2007-04-13 | 2008-10-15 | 天鼎新能源科技（上海）有限公司 | Environmental protection type fuel energy-increasing additive agent |
| JP4743043B2 (en) * | 2006-08-14 | 2011-08-10 | トヨタ自動車株式会社 | Fuel permeation measuring device |
| CN102818741A (en) * | 2011-06-08 | 2012-12-12 | 重庆车辆检测研究院有限公司 | Vehicle oil tube fuel oil permeability test device |
| CN103194282A (en) * | 2013-04-08 | 2013-07-10 | 黄河三角洲京博化工研究院有限公司 | Diesel composite additive |
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2015
- 2015-10-28 CN CN201510713258.0A patent/CN106644870A/en active Pending
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|---|---|---|---|---|
| JP4743043B2 (en) * | 2006-08-14 | 2011-08-10 | トヨタ自動車株式会社 | Fuel permeation measuring device |
| CN101285012A (en) * | 2007-04-13 | 2008-10-15 | 天鼎新能源科技（上海）有限公司 | Environmental protection type fuel energy-increasing additive agent |
| CN102818741A (en) * | 2011-06-08 | 2012-12-12 | 重庆车辆检测研究院有限公司 | Vehicle oil tube fuel oil permeability test device |
| CN103194282A (en) * | 2013-04-08 | 2013-07-10 | 黄河三角洲京博化工研究院有限公司 | Diesel composite additive |
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Application publication date: 20170510 |