CN105331125A - Low-temperature-resisting asphalt and manufacturing method thereof - Google Patents
Low-temperature-resisting asphalt and manufacturing method thereof Download PDFInfo
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- CN105331125A CN105331125A CN201510834429.5A CN201510834429A CN105331125A CN 105331125 A CN105331125 A CN 105331125A CN 201510834429 A CN201510834429 A CN 201510834429A CN 105331125 A CN105331125 A CN 105331125A
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Abstract
The invention provides low-temperature-resisting asphalt and a manufacturing method thereof. The low-temperature-resisting asphalt is prepared from the following raw materials in parts by weight: 86% to 88% of catalytic slurry oil and 12% to 14% of Merey-16 crude oil. The low-temperature-resisting asphalt has a good anti-ageing performance and strong climate appropriateness, is suitable for road asphalt pavements of middle-grade and low-grade roads and city non-primary routes and can also be used as the raw material of emulsified asphalt and diluted asphalt.
Description
Technical field
The invention belongs to field of bitumen technology, specifically, relate to a kind of low temperature resistant pitch and manufacture method thereof.
Background technology
Since reform and opening-up, China's Economic development is rapid, and highway development also achieves brilliant achievement, China Expressway is broken through 30,000 kilometers of total kilometrages and is occupied the second in the world, road construction facilitates the demand of pitch, and " 12 " period, road bitumen consumption is every year on average at about 1,500 ten thousand tons.
Pitch is divided into coal tar pitch, rock asphalt, petroleum pitch, and wherein petroleum pitch uses the most extensive, the residue after its crude distillation.According to the difference of the degree of refinement, become liquid, semisolid or solid at normal temperatures.Petroleum pitch look black and glossy, has higher temperature sensibility.Pitch is a lot of as pavior advantage, and one is wheel and road surface two-stage vibration damping, and therefore road-ability is good, noise is little; Two is flexible pavement strong adaptabilities to roadbed, foundation deformation or non-uniform settling; Three is that speed is repaired soon in road surface, can be open to traffic after rolling.
Pitch be a kind of to temperature than more sensitive viscoelastic material, temperature raises or reduces, and its form and use properties all can change.When temperature raises, pitch deliquescing, thinning, the cohesive force reducing pitch Yu gather materials; When temperature reduces, pitch retrogradation, hardening and become fragile, lose the cohesive force to building stones.
China is vast in territory, and south is large with boreal climate difference, and temperature, rainfall are not identical yet, and cause the behaviour in service difference of bituminous pavement very large, the reason difference that bituminous pavement destroys is large.Particularly cold district, high to the Low temperature property requirements of pitch, and plain asphalt can not meet use properties requirement, must adopt the measured pitch of matter, to meet the requirement of low temperature environment Pavement Performance in Distress.
Summary of the invention
Instant invention overcomes shortcoming of the prior art, provide a kind of low temperature resistant pitch and manufacture method thereof, in being applicable to, the asphalt road surface of the non-major trunk roads of inferior grade road and city, also can be used as the raw material of emulsified bitumen and fluxed asphalt, ageing resistance is good, and benign climate performance is strong.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of low temperature resistant pitch, comprises raw material: weight ratio is catalytic slurry and Ma Rui-16 crude oil of 86-88%:12% ~ 14%.
Also add the Graphene of described pitch weight 1-3%.
A manufacture method for low temperature resistant pitch, comprises the following steps:
1) heat-exchange system heat exchange is delivered to through crude oil pump pressurization;
2) enter electrical desalter and carry out desalination, dehydration;
3) primary tower fractionation is entered after de-rear crude oil continues heat exchange after pressurization;
4) just push up oily vapour to distillate through fore-running tower top, the oil of the first end bottom primary tower enters after atmospheric pressure kiln heating through pump pressurization and enters atmospheric tower fractionation;
5) normal top oil distillates through Atmospheric Tower, and atmospheric side draw oil product distillates through atmospheric tower side line, and oil of the normal end enters after vacuum furnace heating through pump pressurization and enters vacuum distillation tower fractionation;
6) subtract oily the vacuumizing through Top of Vacuum Tower in top to distillate, decompression sideline product distillates through vacuum distillation tower side line, subtracting end oil and pitch after pump pressurization, carrying device after heat exchange, cooling, obtaining low temperature resistant pitch by controlling vacuum furnace furnace temperature, Top of Vacuum Tower vacuum tightness and asphaltic products. penetration degree.
Further, the feeding temperature of described primary tower is 184 DEG C, tower top pressure 11.95kPa, tower top 96 DEG C, column bottom temperature 185 DEG C.
Further, the feeding temperature of described atmospheric pressure kiln is 185 DEG C, and general export temperature is 335 DEG C, burner hearth barricade temperature is 730 DEG C, and upper furnace temperature is 675 DEG C, and lower furnace portion temperature is 592 DEG C, flue-gas temperature is 189 DEG C, combustion chamber draft-52 DEG C, and entering stove hot blast temperature is 176 DEG C.
Further, the feeding temperature of described atmospheric tower is 335 DEG C, and tower top pressure is 9.8kPa, and tower top temperature is 104 DEG C.
Further, the feeding temperature of described vacuum distillation tower is 348 DEG C, and vacuum tightness is 92.8kpa, and negative pressure at the bottom of tower is-0.099kPa, and tower top temperature is 44 DEG C, column bottom temperature 342 DEG C.
Further, the feeding temperature of described vacuum furnace is 332 DEG C, and temperature out is 348 DEG C, burner hearth barricade temperature 702 DEG C, and burner hearth middle portion temperature 627 DEG C enters vacuum furnace hot blast temperature 138 DEG C, combustion chamber draft-54 DEG C.
Compared with prior art, the invention has the beneficial effects as follows:
Low temperature resistant pitch prepared by Venezuela of the present invention heavy feed stock, ageing resistance is good, and benign climate performance is strong, in being applicable to, the asphalt road surface of the non-major trunk roads of inferior grade road and city, also can be used as the raw material of emulsified bitumen and fluxed asphalt.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention, in the accompanying drawings:
Fig. 1 is the manufacturing process structure iron of a kind of low temperature resistant pitch of the present invention.
In figure, 1---single stage desalting tank; 2---secondary desalter;
3---primary tower; 4---atmospheric pressure kiln;
5---atmospheric tower; 6---vacuum furnace;
7---vacuum distillation tower.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
The low temperature resistant pitch of one of the present invention, comprises raw material: weight ratio is catalytic slurry and Ma Rui-16 crude oil of 87%:13%, also adds the Graphene of pitch weight 2%, makes pitch high comprehensive performance, extend the work-ing life of pitch.
As shown in Figure 1, a kind of manufacture method of low temperature resistant pitch, comprises the following steps:
1) heat-exchange system heat exchange is delivered to through crude oil pump pressurization;
2) enter electrical desalter and carry out desalination, dehydration, electrical desalter comprises single stage desalting tank 1 and secondary desalter 2;
3) primary tower 3 fractionation is entered after de-rear crude oil continues heat exchange after pressurization;
4) just push up oily vapour to distillate through primary tower 3 top, the oil of the first end bottom primary tower 3 enters after atmospheric pressure kiln heating through pump pressurization and enters atmospheric tower 5 fractionation;
5) normal top oil distillates through atmospheric tower 5 top, and atmospheric side draw oil product distillates through atmospheric tower 5 side line, and oil of the normal end enters after vacuum furnace 6 heats through pump pressurization and enters vacuum distillation tower 7 fractionation;
6) subtract oily the vacuumizing through vacuum distillation tower 7 top in top to distillate, decompression sideline product distillates through vacuum distillation tower 7 side line, subtracting end oil and pitch after pump pressurization, carrying device after heat exchange, cooling, obtaining low temperature resistant pitch by controlling vacuum furnace 6 furnace temperature, the serious reciprocal of duty cycle of vacuum distillation tower 7 and asphaltic products. penetration degree.
The feeding temperature of primary tower 3 is 184 DEG C, tower top pressure 11.95kPa, tower top 96 DEG C, column bottom temperature 185 DEG C.
The feeding temperature of atmospheric pressure kiln 4 is 185 DEG C, and general export temperature is 335 DEG C, and burner hearth barricade temperature is 730 DEG C, and upper furnace temperature is 675 DEG C, and lower furnace portion temperature is 592 DEG C, and flue-gas temperature is 189 DEG C, combustion chamber draft-52 DEG C, and entering stove hot blast temperature is 176 DEG C.
The feeding temperature of atmospheric tower 5 is 335 DEG C, and tower top pressure is 9.8kPa, and tower top temperature is 104 DEG C.
The feeding temperature of vacuum distillation tower 7 is 348 DEG C, and vacuum tightness is 92.8kpa, and negative pressure at the bottom of tower is-0.099kPa, and tower top temperature is 44 DEG C, column bottom temperature 342 DEG C.
The feeding temperature of vacuum furnace 6 is 332 DEG C, and temperature out is 348 DEG C, burner hearth barricade temperature 702 DEG C, and burner hearth middle portion temperature 627 DEG C enters vacuum furnace 6 hot blast temperature 138 DEG C, combustion chamber draft-54 DEG C.
Obtain low temperature resistant road bitumen through above-mentioned specific temperature and pressure, in being applicable to, the asphalt road surface of the non-major trunk roads of inferior grade road and city, also can be used as the raw material of emulsified bitumen and fluxed asphalt.
Asphaltic products. technical indicator
Last it is noted that these are only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; but it is within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a low temperature resistant pitch, is characterized in that, comprises raw material: weight ratio is catalytic slurry and Ma Rui-16 crude oil of 86-88%:12% ~ 14%.
2. a kind of low temperature resistant pitch according to claim 1, is characterized in that, also add the Graphene of described pitch weight 1-3%.
3. the manufacture method of a kind of low temperature resistant pitch according to claim 1, is characterized in that, comprise the following steps:
1) heat-exchange system heat exchange is delivered to through crude oil pump pressurization;
2) enter electrical desalter and carry out desalination, dehydration;
3) primary tower fractionation is entered after de-rear crude oil continues heat exchange after pressurization;
4) just push up oily vapour to distillate through fore-running tower top, the oil of the first end bottom primary tower enters after atmospheric pressure kiln heating through pump pressurization and enters atmospheric tower fractionation;
5) normal top oil distillates through Atmospheric Tower, and atmospheric side draw oil product distillates through atmospheric tower side line, and oil of the normal end enters after vacuum furnace heating through pump pressurization and enters vacuum distillation tower fractionation;
6) subtract oily the vacuumizing through Top of Vacuum Tower in top to distillate, decompression sideline product distillates through vacuum distillation tower side line, subtracting end oil and pitch after pump pressurization, carrying device after heat exchange, cooling, obtaining low temperature resistant pitch by controlling vacuum furnace furnace temperature, Top of Vacuum Tower vacuum tightness and asphaltic products. penetration degree.
4. the manufacture method of a kind of low temperature resistant pitch according to claim 3, it is characterized in that, the feeding temperature of described primary tower is 184 DEG C, tower top pressure 11.95kPa, tower top 96 DEG C, column bottom temperature 185 DEG C.
5. the manufacture method of a kind of low temperature resistant pitch according to claim 3, it is characterized in that, the feeding temperature of described atmospheric pressure kiln is 185 DEG C, general export temperature is 335 DEG C, and burner hearth barricade temperature is 730 DEG C, and upper furnace temperature is 675 DEG C, lower furnace portion temperature is 592 DEG C, flue-gas temperature is 189 DEG C, combustion chamber draft-52 DEG C, and entering stove hot blast temperature is 176 DEG C.
6. the manufacture method of a kind of low temperature resistant pitch according to claim 3, it is characterized in that, the feeding temperature of described atmospheric tower is 335 DEG C, and tower top pressure is 9.8kPa, and tower top temperature is 104 DEG C.
7. the manufacture method of a kind of low temperature resistant pitch according to claim 3, it is characterized in that, the feeding temperature of described vacuum distillation tower is 348 DEG C, and vacuum tightness is 92.8kpa, and negative pressure at the bottom of tower is-0.099kPa, and tower top temperature is 44 DEG C, column bottom temperature 342 DEG C.
8. the manufacture method of a kind of low temperature resistant pitch according to claim 3, it is characterized in that, the feeding temperature of described vacuum furnace is 332 DEG C, temperature out is 348 DEG C, burner hearth barricade temperature 702 DEG C, burner hearth middle portion temperature 627 DEG C, enter vacuum furnace hot blast temperature 138 DEG C, combustion chamber draft-54 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510834429.5A CN105331125A (en) | 2015-11-26 | 2015-11-26 | Low-temperature-resisting asphalt and manufacturing method thereof |
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| CN201510834429.5A CN105331125A (en) | 2015-11-26 | 2015-11-26 | Low-temperature-resisting asphalt and manufacturing method thereof |
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| CN105331125A true CN105331125A (en) | 2016-02-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016359A (en) * | 2019-04-11 | 2019-07-16 | 山东东明石化集团有限公司 | A kind of process using Kuwait and No. 70 A pitch of Ka Sidila crude oil mixture manufacturing |
| CN113975839A (en) * | 2021-10-21 | 2022-01-28 | 山东昌邑石化有限公司 | Novel grading flash evaporation equipment and process |
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| CN104629799A (en) * | 2013-11-13 | 2015-05-20 | 湖南长岭石化科技开发有限公司 | Method for producing high-grade road asphalt by blending catalytic slurry oil |
| CN104650602A (en) * | 2015-02-06 | 2015-05-27 | 中国石油大学(华东) | High-grade road hard asphalt and preparation method thereof |
| CN105001907A (en) * | 2014-04-27 | 2015-10-28 | 中石化南京工程有限公司 | Polygeneration method of paraffin-base inferior crude oil and system thereof |
| CN105017782A (en) * | 2015-07-30 | 2015-11-04 | 华南理工大学 | High-grade road asphalt and preparation method thereof |
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2015
- 2015-11-26 CN CN201510834429.5A patent/CN105331125A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104629799A (en) * | 2013-11-13 | 2015-05-20 | 湖南长岭石化科技开发有限公司 | Method for producing high-grade road asphalt by blending catalytic slurry oil |
| CN105001907A (en) * | 2014-04-27 | 2015-10-28 | 中石化南京工程有限公司 | Polygeneration method of paraffin-base inferior crude oil and system thereof |
| CN104650602A (en) * | 2015-02-06 | 2015-05-27 | 中国石油大学(华东) | High-grade road hard asphalt and preparation method thereof |
| CN105017782A (en) * | 2015-07-30 | 2015-11-04 | 华南理工大学 | High-grade road asphalt and preparation method thereof |
Non-Patent Citations (3)
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| 《石油炼制与化工》编辑部: "《重油加工新技术》", 31 October 2007, 中国石化出版社 * |
| 杨光等: "催化油浆与南美重油混合生产道路沥青技术研究", 《石油沥青》 * |
| 王雷等: "《润滑油及其生产工艺简学》", 30 November 2014, 辽宁科学技术出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016359A (en) * | 2019-04-11 | 2019-07-16 | 山东东明石化集团有限公司 | A kind of process using Kuwait and No. 70 A pitch of Ka Sidila crude oil mixture manufacturing |
| CN113975839A (en) * | 2021-10-21 | 2022-01-28 | 山东昌邑石化有限公司 | Novel grading flash evaporation equipment and process |
| CN113975839B (en) * | 2021-10-21 | 2023-01-10 | 山东昌邑石化有限公司 | Grading flash evaporation equipment and process |
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Application publication date: 20160217 |
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