CN110551400A - asphalt and preparation method thereof - Google Patents
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- CN110551400A CN110551400A CN201810558193.0A CN201810558193A CN110551400A CN 110551400 A CN110551400 A CN 110551400A CN 201810558193 A CN201810558193 A CN 201810558193A CN 110551400 A CN110551400 A CN 110551400A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/329—Phosphorus containing acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Polymers & Plastics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses asphalt, which is prepared from the following components in parts by weight: 90-99 parts of raw oil; 0.5-1.0 part of first ductility agent; 0.3-2.0 parts of a second ductility improver; 0.1-0.3 part of stabilizer; 0.1-0.5 part of anti-aging agent; the above parts are all calculated according to the parts by weight. The asphalt of the invention can produce qualified road asphalt by using residual oil of different oil sources of refineries, greatly increases the added value of the residual oil, relieves the problem of excessive residual oil, and has the advantages of low production cost, convenient use, little environmental pollution, remarkable social and economic benefits and the like. The invention also provides a preparation method of the asphalt.
Description
Technical Field
The invention belongs to the technical field of road engineering materials, and particularly relates to asphalt and a preparation method thereof
Background
The highway construction in China has achieved huge achievements since the last years, the total highway mileage reaches 457 kilometers, wherein the highway mileage breaks through 12 kilometers, the highway mileage is listed as the first world, and the total highway mileage is listed as the second world. The road construction growth potential will continue in the next few years, with a total highway mileage expected to reach 17 kilometers in the country by 2020. Because the asphalt pavement has the characteristics of flexibility, low oil consumption, comfortable driving, long service life of tires and the like, the proportion of the asphalt pavement in the pavement is gradually increased, the asphalt pavement occupies an important position in the pavement structure of a highway and an airport pavement, the asphalt demand in China is increased, and the annual requirement is estimated to be about more than 2300 ten thousand tons.
for a long time, the same residue disposal problem is faced by domestic refineries, i.e. the excess residue cannot be disposed of. In the past, residual oil is treated by coking, but the method has serious pollution and does not accord with the green and environment-friendly direction advocated by China, and most refineries reduce residual oil coking; some refineries adopt a fuel oil production mode to treat residual oil, but the method has low added value and overproof emission and is not environment-friendly. In recent years, with the increase of the use amount of road asphalt, the industry researchers use residual oil to produce road asphalt, asphalt particles and the like to relieve the problem of excessive residual oil. At present, asphalt in domestic markets is mainly supplied by large refineries such as medium petrochemicals, medium petroleum, medium marine oil and land refining. The No. 50 hard asphalt is developed as an important way for solving the problem of the export of heavy vacuum residue and DOA in various large refineries, and becomes a means for upgrading and increasing the efficiency of the refineries on a large scale. Refineries of medium and petrochemical, medium and medium sea oil and the like can produce 50A road asphalt through residual oil, but can refine qualified 50A asphalt only by aiming at a fixed petroleum oil source, for example, the medium and petrochemical can produce 50A asphalt by using Mary crude oil, the medium and petrochemical can produce 50A asphalt by using Kewite crude oil, and the qualified 50A asphalt cannot be produced by mixing various crude oils. In addition, although the former can produce 50A and 50B asphalt by specific crude oil varieties and process methods, the problems of high cost, edge sticking of ductility indexes of 10 ℃ before aging and the like are more prominent. How to debug qualified and high-quality 50A asphalt by using the normally produced residual oil asphalt such as the mixture of various crude oils and the blending ratio of various crude oils is an important subject faced by asphalt researchers and is very significant.
Disclosure of Invention
in order to solve the problems that the crude oil variety is required to be singly fixed, the cost is high and the asphalt ductility is poor in the prior art when the 50A asphalt is produced by using the residual oil, the invention provides the asphalt which has stable blending performance, can adapt to the residual oil and/or the asphalt which is mixed or singly mixed by various different crude oils, is flexible in oil source use, can obviously improve the ductility index of the residual oil and/or the asphalt at 10 ℃ before and after aging on the premise that other performance indexes are not influenced, and greatly improves the additional value of the residual oil and/or the asphalt.
In order to solve the technical problems, the invention provides asphalt which is prepared from the following components:
The above parts are all calculated according to the parts by weight.
Preferably, the raw oil is one or more of residual oil or petroleum asphalt.
preferably, the crude oil refined to obtain the residual oil is one or more of Iran crude oil, Irake crude oil, Sauter crude oil, Mary crude oil, Perscan crude oil and domestic crude oil.
preferably, the asphalt is one or more of grade A asphalt, grade B asphalt and grade C asphalt for roads.
preferably, the first ductility enhancer is first-line-reduced extract oil, second-line-reduced extract oil and third-line-reduced, and the second ductility enhancer is one or more of styrene-butadiene rubber, natural rubber powder, isoprene rubber and butadiene rubber.
preferably, the stabilizer is industrial flake sulfur or analytical grade flake sulfur.
Preferably, the anti-aging agent is a polyphosphoric acid or carbon powder compound.
In addition, the invention also provides a preparation method of the asphalt, which comprises the following steps:
(1) Heating raw oil to 125-165 ℃, and heating a first extender to 40-100 ℃;
(2) Adding the first ductility improver, the second ductility improver, the stabilizer and the anti-aging agent into the raw oil together, wherein the adding order is not limited;
(3) And (3) carrying out stirring swelling, shearing and development processes on the mixture obtained after mixing in the step (2) to obtain the finished product asphalt.
preferably, the preparation temperature of the step (3) is 130-180 ℃, and the preparation time is 30-90 min.
The invention has the beneficial effects that: different from the situation of the prior art, the invention simultaneously uses the first ductility enhancer and the second ductility enhancer, not only effectively improves the ductility of the residual oil and/or asphalt mixed or single-milled by various different crude oils, but also enables the asphalt performance to be more stable through the interaction of the first ductility enhancer and the second ductility enhancer, slows down the ductility attenuation of the asphalt at 10 ℃ before and after aging, and has little influence on other performances of the asphalt. The asphalt can produce qualified road asphalt by using residual oil of different oil sources in refineries, greatly increases the additional value of the residual oil, relieves the problem of excessive residual oil, and has the advantages of low production cost, convenient use, little environmental pollution, remarkable social and economic benefits and the like.
Detailed Description
The invention provides asphalt which is prepared from the following components in parts by weight: 90-99 parts of raw oil; 0.5-1.0 part of first ductility agent; 0.3-2.0 parts of a second ductility improver; 0.1-0.3 part of stabilizer; 0.1-0.5 part of anti-aging agent; the above parts are all calculated according to the parts by weight.
Wherein, the raw oil is one or more of residual oil or petroleum asphalt.
Wherein, the crude oil for preparing the residual oil by refining is one or more of Iran crude oil, Irake crude oil, Sauter crude oil, Mary crude oil, Perscan crude oil and domestic crude oil.
Wherein, the asphalt is one or more of grade A asphalt, grade B asphalt and grade C asphalt for roads.
The first ductility enhancing agent is preferably reduced first-line extract oil, reduced second-line extract oil or reduced third-line, and the second ductility enhancing agent is one or more of styrene-butadiene rubber, natural rubber powder, isoprene rubber and butadiene rubber.
Wherein the stabilizer is industrial flaky sulfur or analytical flaky sulfur.
Wherein the anti-aging agent is polyphosphoric acid or carbon powder compound.
In addition, the invention also provides a preparation method of the asphalt, which comprises the following steps:
(1) Heating raw oil to 125-165 ℃, and heating a first extender to 40-100 ℃;
(2) Adding the first ductility improver, the second ductility improver, the stabilizer and the anti-aging agent into the raw oil together, wherein the adding order is not limited;
(3) And (3) carrying out stirring swelling, shearing and development processes on the mixture obtained after mixing in the step (2) to obtain the finished product asphalt.
Wherein the preparation temperature in the step (3) is 130-180 ℃, and the preparation time is 30-90 min.
The present invention will be further clearly understood by the following specific examples and comparative examples of the present invention, which are given without limiting the invention thereto.
example 1
in this example, the crude oil fraction to produce a residue from refining is Iran crude oil: irak crude oil: sauter crude oil 65:20: 15; the first ductility enhancer is a reduced line extract oil: catalytic slurry oil 50: 50; the second ductility agent is styrene butadiene rubber: the natural rubber powder is 80: 20; the stabilizer is industrial flaky sulfur; the anti-aging agent is 105 polyphosphoric acid.
the preparation method comprises the following steps:
(1) Heating the residual oil to 155 ℃, and heating the first ductility agent to 50 ℃;
(2) adding the first ductility improver, the second ductility improver, the stabilizer and the anti-aging agent into the raw oil together, wherein the adding order is not limited;
(3) and (3) carrying out processes of stirring, swelling, shearing and developing on the mixture obtained after mixing in the step (2) to obtain the finished product asphalt. The performance index of the obtained asphalt is shown in table 1. Wherein the operation temperature of stirring swelling, shearing and development is 150 ℃, and the operation time is 60 min.
5 kg of the finished product asphalt is poured into a container to be sealed, and the container is placed into a constant-temperature oven at the temperature of 120-. The performance index of the obtained asphalt is shown in table 1.
Example 2
In this example, the crude oil fraction to produce a residue from refining is Iran crude oil: kowitt crude oil: domestic crude oil 45:50: 5; the petroleum asphalt is 90A grade; the first ductility enhancer 1 is the drawoff oil of the minus four wires: rubber oil 90: 10; the second ductility agent is styrene butadiene rubber: natural rubber powder: butadiene rubber 75:15: 10; the stabilizer is analytical grade flaky sulfur; the anti-aging agent is 200 meshes of carbon powder.
the preparation method comprises the following steps:
(1) Heating the residuum to 145 ℃ and heating the first ductility agent to 60 ℃;
(2) Adding the first ductility improver, the second ductility improver, the stabilizer and the anti-aging agent into the raw oil together, wherein the adding order is not limited;
(3) And (3) carrying out processes of stirring, swelling, shearing and developing on the mixture obtained after mixing in the step (2) to obtain the finished product asphalt. The performance index of the obtained asphalt is shown in table 1. Wherein the operation temperature of stirring swelling, shearing and development is 155 ℃, and the operation time is 45 min.
5 kg of the finished product asphalt is poured into a container to be sealed, and the container is placed into a constant-temperature oven at the temperature of 120-. The performance index of the obtained asphalt is shown in table 1.
Example 3
In this example, the crude oil fraction to produce a residue from refining is Iran crude oil: merrill crude oil: domestic crude oil 35:30: 35; the first ductility agent is furfural oil: 60:40 of rubber oil; the second ductility agent is styrene butadiene rubber: the natural rubber powder is 80: 20; the stabilizer is analytical grade flaky sulfur; the anti-aging agent is 180-mesh carbon powder.
The preparation method comprises the following steps:
(1) Heating the residual oil to 150 ℃, and heating the first ductility agent to 70 ℃;
(2) Adding the first ductility improver, the second ductility improver, the stabilizer and the anti-aging agent into the raw oil together, wherein the adding order is not limited;
(3) And (3) carrying out processes of stirring, swelling, shearing and developing on the mixture obtained after mixing in the step (2) to obtain the finished product asphalt. The performance index of the obtained asphalt is shown in table 1. Wherein the operation temperature of stirring swelling, shearing and development is 145 ℃, and the operation time is 90 min.
5 kg of the finished product asphalt is poured into a container to be sealed, and the container is placed into a constant-temperature oven at the temperature of 120-. The performance index of the obtained asphalt is shown in table 1.
example 4
In this example, the petroleum pitch is grade 70A; the first ductility enhancer is a reduced line extract oil: catalytic slurry oil 50: 50; the second ductility agent is styrene butadiene rubber: the natural rubber powder is 80: 20; the stabilizer is industrial flaky sulfur; the anti-aging agent is 105 polyphosphoric acid.
the preparation method comprises the following steps:
(1) Heating the residual oil to 140 ℃, and heating the first ductility agent to 55 ℃;
(2) adding the first ductility improver, the second ductility improver, the stabilizer and the anti-aging agent into the raw oil together, wherein the adding order is not limited;
(3) And (3) carrying out processes of stirring, swelling, shearing and developing on the mixture obtained after mixing in the step (2) to obtain the finished product asphalt. The performance index of the obtained asphalt is shown in table 1. Wherein the operation temperature of stirring swelling, shearing and development is 150 ℃, and the operation time is 60 min.
5 kg of the finished product asphalt is poured into a container to be sealed, and the container is placed into a constant-temperature oven at the temperature of 120-. The performance index of the obtained asphalt is shown in table 1.
Comparative example 1
100 parts of residual oil;
In this example, the crude oil fraction to produce a residue from refining is Iran crude oil: irak crude oil: sauter crude oil 65:20: 15.
The preparation method comprises the following steps:
Heating the residual oil to 155 ℃, and stirring for 60min to obtain the finished asphalt. The performance index of the obtained asphalt is shown in Table 1.
Comparative example 2
84 parts of residual oil;
16 portions of petroleum asphalt
In this example, the crude oil fraction to produce a residue from refining is Iran crude oil: kowitt crude oil: domestic crude oil 45:50: 5; the petroleum asphalt is 90A.
Two comparison steps:
Mixing the residual oil and the petroleum asphalt, heating to 145 ℃, and stirring for 45min to obtain the finished asphalt. The performance index of the obtained asphalt is shown in table 1.
Comparative example 3
100 parts of residual oil;
In this example, the crude oil fraction to produce a residue from refining is Iran crude oil: merrill crude oil: domestic crude oil 35:30: 35.
the preparation method comprises the following steps:
heating the residual oil to 150 ℃, and stirring for 90min to obtain the finished asphalt. The performance index of the obtained asphalt is shown in Table 1.
Comparative example 4
100 parts of petroleum asphalt;
Wherein the petroleum asphalt is 70A grade.
The preparation method comprises the following steps:
heating the petroleum asphalt to 140 ℃, and stirring for 60min to obtain the finished product asphalt. The performance index of the obtained asphalt is shown in table 1.
TABLE 1
as can be seen from Table 1, the performance indexes in examples 1-4 all meet the requirements of the specification "technical Specification for construction of asphalt road surface" (JTG F40-2004).
Comparing comparative example 1 with example 1, comparative example 2 with example 2, comparative example 3 with example 3, and comparative example 4 with example 4, it can be seen that the properties of the residual oil and/or asphalt blended by the ductility enhancer meet the specification requirements, the ductility of the residual oil and/or asphalt is improved, the ductility at 10 ℃ after aging is also greatly improved, and the performance decay after high-temperature storage is slow.
The invention uses the first ductility improver and the second ductility improver simultaneously, which not only effectively improves the ductility of the residual oil and/or asphalt mixed or refined by a plurality of different crude oils, but also leads the asphalt performance to be more stable through the interaction of the first ductility improver and the second ductility improver, slows down the ductility attenuation of the asphalt at 10 ℃ before and after aging, and has little influence on other performances of the asphalt. The asphalt of the invention can produce qualified road asphalt by using residual oil of different oil sources of refineries, greatly increases the additional value of the residual oil, relieves the problem of excessive residual oil, and has the advantages of low production cost, convenient use, little environmental pollution, remarkable social and economic benefits and the like.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. The asphalt is characterized by being prepared from the following components:
The above parts are all calculated according to the parts by weight.
2. The asphalt according to claim 1, wherein the raw oil is one or more of residual oil and petroleum asphalt.
3. The asphalt of claim 2, wherein the crude oil refined to produce the residual oil is one or more of iran crude oil, irak crude oil, sauter crude oil, mary crude oil, boskan crude oil, and domestic crude oil.
4. the asphalt according to claim 1, wherein the asphalt is one or more of asphalt for road grade A, asphalt for road grade B and asphalt for road grade C.
5. The asphalt of claim 1, wherein the first ductility enhancing agent is one or more of reduced virgin line extract oil, furfural oil, catalytic slurry oil, and rubber oil.
6. The asphalt of claim 1, wherein the second ductility agent is one or more of styrene-butadiene rubber, natural rubber powder, isoprene rubber and butadiene rubber.
7. The asphalt of claim 1, wherein the stabilizer is technical flake sulfur or analytical grade flake sulfur.
8. The asphalt of claim 1, wherein the anti-aging agent is a polyphosphoric acid-based or carbon powder-based compound.
9. A process for the preparation of bitumen according to claims 1 to 8, comprising the following steps:
(1) heating raw oil to 125-165 ℃, and heating a first extender to 40-100 ℃;
(2) adding the first ductility improver, the second ductility improver, the stabilizer and the anti-aging agent into the raw oil together, wherein the sequence is not limited;
(3) and (3) carrying out stirring swelling, shearing and development processes on the mixture obtained after mixing in the step (2) to obtain the finished product asphalt.
10. The method according to claim 9, wherein the preparation temperature of the step (3) is 130 ℃ to 180 ℃ and the preparation time is 30 to 90 min.
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| CN201810558193.0A CN110551400A (en) | 2018-06-01 | 2018-06-01 | asphalt and preparation method thereof |
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| CN201810558193.0A CN110551400A (en) | 2018-06-01 | 2018-06-01 | asphalt and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418129A (en) * | 2007-10-26 | 2009-04-29 | 中国石油化工股份有限公司 | Asphalt composite and preparation method thereof |
| CN102816447A (en) * | 2012-09-03 | 2012-12-12 | 唐晓旭 | Production and application methods of ductility-enhancing modifier for road asphalt |
| CN106147253A (en) * | 2015-04-20 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of regeneration asphalt and preparation method thereof |
-
2018
- 2018-06-01 CN CN201810558193.0A patent/CN110551400A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418129A (en) * | 2007-10-26 | 2009-04-29 | 中国石油化工股份有限公司 | Asphalt composite and preparation method thereof |
| CN102816447A (en) * | 2012-09-03 | 2012-12-12 | 唐晓旭 | Production and application methods of ductility-enhancing modifier for road asphalt |
| CN106147253A (en) * | 2015-04-20 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of regeneration asphalt and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘祥等: ""多聚磷酸改性沥青研究现状及展望"", 《材料导报》 * |
| 王宝民等主编: "《道路建筑材料》", 31 August 2010, 中国建材工业出版社 * |
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Application publication date: 20191210 |