CN1227328C - Production method of ageing resistant road asphalt - Google Patents
Production method of ageing resistant road asphalt Download PDFInfo
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- CN1227328C CN1227328C CN 02144541 CN02144541A CN1227328C CN 1227328 C CN1227328 C CN 1227328C CN 02144541 CN02144541 CN 02144541 CN 02144541 A CN02144541 A CN 02144541A CN 1227328 C CN1227328 C CN 1227328C
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- oil
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Abstract
The present invention relates to a technological process for enhancing the ageing resistance of high grade road asphalt, which uses intensive distilled technology to produce straight distillation high grade road asphalt. The present invention uses the composition of solvent refining extract oil and cycle oil slurry as a distilled intensifying agent, and the use level of the distilled intensifying agent accounts for 7 to 60m% of distilled feeding. In intensifying agent composition, the use level of the cycle oil slurry is 0 to 80m%, and the use level of the solvent refining extract oil is 20 to 100m%. Raw material which is distillated by an intensive way can be one of or the composition of more than one of crude oil, atmospheric residuum and vacuum residuum. The present invention further increases the properties of road asphalt after a thin-film oven test, that is, the ageing resistance of the road asphalt is increased. The present invention has the advantages of simple manufacturing process and low production cost.
Description
1, technical field
The present invention relates to a kind of production method of asphalt for high grade road, particularly relate to a kind of method that adopts intensifying distillation technology production straight run asphalt for high grade road, a kind of production of more specifically saying so has the straight run asphalt for high grade road method of excellent anti aging resistance.
2, background technology
Along with the progress and the expanding economy of society, people are more and more stricter to the requirement of road quality, and wherein, ageing resistance more and more comes into one's own as the important indicator that guarantees quality of road asphalt.As China Petrochemical Corporation in 2000 the issue Q/SHR003-2000 and the Q/SHR004-2000 company standard apparently higher than the specification of quality of standard GB/T15180-94 to asphalt for high grade road, GB/T15180-94 is higher than SH0522-2000 again, and its difference mainly is reflected in character behind the Thin Film Oven Test TFOT of road bitumen is required.Behind the Thin Film Oven Test TFOT property representation ageing resistance of road bitumen, therefore ageing resistance become most important in the asphalt for high grade road standard, also be the most inaccessible index simultaneously, the difficult point of asphalt for high grade road production mainly concentrates on behind its Thin Film Oven Test TFOT on every index.
Chinese invention patent CN 1231308A prospectus has related to and extracted oil out with slurry oil of handling through underpressure distillation and/or undressed solvent treatment is soft component, with de-oiled asphalt, oxidized bitumen is the method that the dumbbell shaped blending method of hard component is produced the anti-aging road bitumen meet the GB/T15180-94 standard, and the main weak point of this method is that the manufacturer must have gilsonite; Extract oil out and do not pass through further processing treatment, light constituent wherein can make behind the Thin Film Oven Test TFOT of road bitumen that the evaporation quality change is excessive, penetration ratio minimizing etc.In addition, softening temperature height, the viscosity of hard component are big, need long-time stirring or repeatedly mix just to make soft, hard component homodisperse.With also having of the similar processing catalytically cracked oil of Chinese invention patent CN 1231308A: Chinese invention patent CN 1302841A and U.S. Pat 4207117.The technological line that Chinese invention patent CN 1102847A adopts is first catalyzed oxidation full distillate oil slurry, call in then to subtract in the slag, this method can not fine solution oxidising process in a large amount of slurry oils light constituent be blown, oxidation products and the bad problem of residual oil intermiscibility.In addition, the bituminous resistance to deterioration of above-mentioned technology production still needs further raising.
Intensifying distillation is the new technology in the refining of petroleum field that grows up in the later stage eighties 20th century, its principle is, regulate molecular interaction in crude oil, the residual oil nonhomogeneous system by adding reinforcer, reduce the gravitation of disperse phase bituminous matter to solvation shell low molecular hydrocarbon class, and it is transferred in the dispersion medium, raising is normal, the purpose of the extracting rate of underpressure distillation thereby reach.In the prior art, intensifying distillation is normal to increase usually, reliever side stream yield is a purpose, is not the purpose product with the road bitumen.Reinforcer accounts for below the charging 10wt% usually, and reinforcer is generally aromatics, high fatty alcohol, synthetic fatty acid and some contains the oil soluble high molecular polymer of polar group.
Straight-run pitch has simple, the low cost and other advantages of production technique, but most of product performance are not ideal enough, do not meet the specification of quality of asphalt for high grade road usually.Chinese invention patent CN 1299856A prospectus relates to and a kind ofly meets SH0522-2000 standard road bituminous method with intensifying distillation production, and its reinforcer is slurry oil and turps.Turps is α-Pai Xi and beta-pinene compound, has volatility, and the boiling range scope is difficult for mixing in the residual oil between 150～170 ℃, also can not be retained in the pitch substantially behind the intensifying distillation.The slurry oil that is retained in the pitch is limited to the asphalt film baking oven test improvement of character afterwards.
3, summary of the invention
At the deficiencies in the prior art, the invention provides a kind of processing method of intensifying distillation direct production asphalt for high grade road and associated reinforcer composition.
The inventive method is: the raw material that will contain reinforcer carries out intensifying distillation, and the consumption of reinforcer is 7～60wt% (accounting for the distillation charging), preferred 15～40wt% (accounting for the distillation charging).Consisting of of reinforcer wherein:
(1) oil 20～100wt% is extracted in solvent treatment out;
(2) catalytically cracked oil 0～80wt%;
Be preferably:
(1) oil 50～100wt% is extracted in solvent treatment out;
(2) catalytically cracked oil 0～50wt%.
Catalytically cracked oil is the slurry oil of heavy oil fluid catalytic cracking, or mixes the slurry oil of the catalytic cracking of refining residual oil, or catalytic cracking turning oil, or the composition of clarified oil or above-mentioned two or more component, the slurry oil of preferred heavy oil fluid catalytic cracking.Solvent treatment is extracted oil out and is extracted oil and the refining composition of extracting any or any above-mentioned two or more component in the oil out of solvent deasphalting residual lubricating oil for subtracting one out to subtracting four each line lube oil finishings, preferably subtract three, subtract four and refining any or any above-mentioned two or more extracted out in the oil of residual lubricating oil extract oily composition out.If by the used solvent classification of lube oil finishing, the composition of a kind of or any above-mentioned two or more component in the extraction oil that oil can be furfural, phenol and N-Methyl pyrrolidone is extracted in lube oil finishing out.
Of the present inventionly be reinforced the composition that distillating material can be a kind of or any above-mentioned two or more component in crude oil, long residuum, the vacuum residuum.The attribute of preferred above-mentioned charging is the composition of intermediate base, centre-cycloalkyl or cycloalkyl or above-mentioned any two or more components.
Before the adding the implantation site and be atmospheric tower or vacuum distillation tower of reinforcer of the present invention.The adding mode is online adding or is pre-mixed before distillation.
The operational condition of intensifying distillation of the present invention is common normal, underpressure distillation condition, and the distillation tower column bottom temperature is controlled at more than 400 ℃ (the normal pressure temperature after the conversion).Charging attribute, density and different in kind such as fractional distribution, the base product temperature of road bitumen of producing the same penetration degree grade or the trade mark is also different; Under the prerequisite of same raw material, control different distillation tower column bottom temperatures and can obtain the road bitumen that differing needles in-degree grade or the trade mark require.
Ageing resistance of the present invention is meant character behind the Thin Film Oven Test TFOT of road bitumen, comprises penetration ratio, 15 ℃ of ductilities, 25 ℃ of ductilities and mass loss.Penetration ratio, 15 ℃ of ductilities, 25 ℃ of ductilities are big more, show that its ageing resistance is good more, and mass loss is more little, shows that its ageing resistance is good more.
The inventive method can adopt simple distillating method to produce high-quality asphaltic products. by adding suitable reinforcer, and particularly this bituminous ageing resistance improves greatly, meets the specification of quality of high standard road bitumen.The inventive method often can also increase, the extracting rate of vacuum distillation apparatus distillate.The inventive method is simple, and production cost is low.
4, embodiment
Further specify the present invention program and effect below in conjunction with embodiment.
Embodiment 1
10wt% subtracts four line furfural treatments and extracts the reinforcer composition of the slurry oil composition of oil and 10wt% heavy oil fluid catalytic cracking out and enter vacuum still in the mode of online adding with the long residuum of 80wt% Tahe commingled crude, when column bottom temperature is controlled at 430 ℃, 420 ℃ and 410 ℃ respectively, can produce 25 ℃ of penetration degrees respectively and be 67,91 and 116 intensifying distillation vacuum residuum, be AH-70, AH-90 and AH-110 straight run asphalt for high grade road, the results are shown in Table 1, this pitch has good ageing resistance.
Embodiment 2
19wt% subtracts four line furfural treatments and extracts oil out, the reinforcer composition that 10wt% subtracts the refining slurry oil composition of extracting oil and 2wt% heavy oil fluid catalytic cracking out of three-way N-Methyl pyrrolidone enters atmospheric tower in the mode of online adding with surplus Tahe commingled crude, long residuum enters vacuum still again, column bottom temperature is controlled at 430 ℃ respectively, when 420 ℃ and 410 ℃, can produce 25 ℃ of penetration degrees respectively is 62,87 and 112 intensifying distillation vacuum residuum, be AH-70, AH-90 and AH-110 straight run asphalt for high grade road, the results are shown in Table 2, this pitch has good ageing resistance.
Embodiment 3
That 8wt% subtracts is three-way, 21wt% subtracts four lines and the furfural treatment of 8wt% residue is extracted reinforcer composition that oil forms out and entered vacuum still in the mode of online adding with the long residuum of 63wt% Tahe commingled crude, when column bottom temperature is controlled at 430 ℃, 420 ℃ and 410 ℃ respectively, can produce 25 ℃ of penetration degrees respectively and be 68,97 and 107 intensifying distillation vacuum residuum, be AH-70, AH-90 and AH-110 straight run asphalt for high grade road, the results are shown in Table 2, this pitch has good ageing resistance.
Comparative example 1
Do not add reinforcer of the present invention, other is with embodiment 1.Column bottom temperature is controlled at 410 ℃, 400 ℃ and 390 ℃ respectively, and can to obtain 25 ℃ of penetration degrees respectively be 57,87 and 130 residual oil, and analytical results sees Table 4.This bituminous ageing resistance is obviously not as embodiment 1, embodiment 2 and embodiment 3
Table 1 embodiment 1 intensifying distillation straight run road bitumen character
Table 2 embodiment 2 intensifying distillation straight run road bitumen character
Table 3 embodiment 3 intensifying distillation straight run road bitumen character
Table 4 comparative example 1 result
Claims (10)
1, a kind of production method of anti-aging road bitumen, the raw material that will contain reinforcer carries out intensifying distillation, it is characterized in that the 7～60wt% of the consumption of described reinforcer for the distillation charging, and reinforcer comprises following component:
(1) oil 20～100wt% is extracted in solvent treatment out;
(2) catalytically cracked oil 0～80wt%.
2,, it is characterized in that the 15～40wt% of the consumption of described reinforcer for the distillation charging according to the described production method of claim 1.
3,, it is characterized in that described reinforcer comprises following component according to claim 1 or 2 described production methods:
(1) oil 50～100wt% is extracted in solvent treatment out;
(2) catalytically cracked oil 0～50wt%.
4, according to the described production method of claim 1, it is characterized in that described catalytically cracked oil is the slurry oil of heavy oil fluid catalytic cracking, or mix the slurry oil of catalytic cracking of refining residual oil, or catalytic cracking turning oil, or the composition of clarified oil or above-mentioned two or more component.
5,, it is characterized in that it is to subtract one to extract out oily and the refining composition of extracting any or any above-mentioned two or more component in the oil out of solvent deasphalting residual lubricating oil to subtracting four each line lube oil finishings that oil is extracted in described solvent treatment out according to the described production method of claim 1.
6,, it is characterized in that it is the composition of a kind of or any above-mentioned two or more component in the extraction oil of furfural, phenol or N-Methyl pyrrolidone that described solvent treatment is extracted out oily according to the described production method of claim 5.
7,, it is characterized in that described raw material is the composition of a kind of or any above-mentioned two or more component in crude oil, long residuum, the vacuum residuum according to the described production method of claim 1.
8,, it is characterized in that described raw material is the long residuum or the vacuum residuum of intermediate base crude oil, centre-naphthenic base crude or naphthenic base crude and above-mentioned crude oil according to the described production method of claim 7.
9, according to the described production method of claim 1, it is characterized in that the adding the implantation site and be atmospheric tower or vacuum distillation tower of described reinforcer before, the adding mode is online adding or is pre-mixed before distillation.
10, according to the described production method of claim 1, the operational condition that it is characterized in that described intensifying distillation is common distillation procedure condition, and control base product temperature is more than 400 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144541 CN1227328C (en) | 2002-11-02 | 2002-11-02 | Production method of ageing resistant road asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144541 CN1227328C (en) | 2002-11-02 | 2002-11-02 | Production method of ageing resistant road asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1493653A CN1493653A (en) | 2004-05-05 |
| CN1227328C true CN1227328C (en) | 2005-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02144541 Expired - Lifetime CN1227328C (en) | 2002-11-02 | 2002-11-02 | Production method of ageing resistant road asphalt |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892069B (en) * | 2010-06-25 | 2014-08-27 | 中国海洋石油总公司 | Environmentally-friendly asphalt regenerant and preparation method thereof |
| CN103554926B (en) * | 2013-10-16 | 2016-01-27 | 中国石油化工股份有限公司 | A kind of low grade asphalt for high grade road and preparation method thereof |
| CN108949217A (en) * | 2017-05-25 | 2018-12-07 | 中国石油天然气股份有限公司 | Intensifying distillation agent and distillating method |
| CN108424779A (en) * | 2018-03-21 | 2018-08-21 | 山东京博石油化工有限公司 | A kind of preparation method of 70#A grades of bi tumenf orr oads of slurry oil reconciliation |
| CN109207181A (en) * | 2018-10-09 | 2019-01-15 | 中国石油化工股份有限公司 | A kind of method of catalytic slurry production road asphalt |
-
2002
- 2002-11-02 CN CN 02144541 patent/CN1227328C/en not_active Expired - Lifetime
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