CN101007902A - Asphalt composition for pavement and its continuous production method - Google Patents
Asphalt composition for pavement and its continuous production method Download PDFInfo
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- CN101007902A CN101007902A CNA2006101717430A CN200610171743A CN101007902A CN 101007902 A CN101007902 A CN 101007902A CN A2006101717430 A CNA2006101717430 A CN A2006101717430A CN 200610171743 A CN200610171743 A CN 200610171743A CN 101007902 A CN101007902 A CN 101007902A
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Abstract
The objective of this invention is to provide a method of producing straight run bitumen having 40-120 penetration at 25 DEG C and excellent resistance to flow, anti cracking property with low cost, and without using special crude oil and complex technics, impossible reduce fuel oil production efficiency at the same time of bitumen production, and without setting asphaltic products tank.
Description
Technical field
The present invention relates to asphalt composition for pavement and be used for the manufacture method of its manufacturing, this asphalt composition for pavement comprises the long-term for the straight-run pitch with the property excellence of asphalt pavement.Specifically, its manufacture method that relates to the asphalt composition for pavement and the employing pipeline blending machine (line blend mixer) of resistance to flow, anti-crackle excellence.
Background technology
Penetration degree when asphalt for pavement uses 25 ℃ that crude distillation is made is the straight-run pitch of 40～120 (1/10mm), as situation around nearest asphalt pavement technology, increase the handling cost of keeping that accompanies from the prolongation that requires to reduce with the asphalt pavement road, use the life-span in order to prolong supplying of mating formation as far as possible, require the pitch of resistance to flow, anti-crackle excellence.
In the patent documentation 1, with good Gong usefulness temperature with the rut groove that do not cause as the damaged reason of asphalt pavement, fatigue cracking, low temperature crackle is purpose, disclose and contained the residual oil that special blends of crudes is carried out underpressure distillation and obtain, the kinematic viscosity the when penetration degree when being adjusted to 25 ℃ is 45～71 and 180 ℃ is 90mm
2The manufacture method of the straight-run pitch that/s is following.
But this manufacture method exists and multiple special crude oil must be used in combination, and may not necessarily obtain the shortcoming of straight-run pitch at a low price.
In addition,, proposed crude oil is distilled, under 200～300 ℃ heating, the vacuum residuum that obtains has been blown into a few hours air and the so-called semi-blown asphalt (non-patent literature 1) made again in order to improve the rut groove.
But there is the shortcoming that needs miscellaneous air blowing operation (vacuum residuum being blown into the operation of a few hours air under 200～300 ℃ heating) in this manufacture method.
In addition, in the patent documentation 2, penetration degree when having put down in writing 25 ℃ is the manufacture method of 20～200 straight-run pitch, it is characterized in that: the crude oil that can access the straight-run pitch with following characteristic: the cutting temperature of underpressure distillation (cut temperature) is less than 600 ℃, penetration degree in the time of 25 ℃ is below 100, penetration degree in the time of 25 ℃ is 40～100 scope, PVN is more than-1.5, less than-0.5, with the crude oil that can access straight-run pitch with following characteristic: the cutting temperature of underpressure distillation is more than 600 ℃, penetration degree in the time of 25 ℃ surpasses 100, carry out air distillation respectively, in cutting temperature is 500～650 ℃ scope, air distillation residual oil is carried out underpressure distillation then, the underpressure distillation residual oil that obtains is mixed; In addition, penetration degree when also having put down in writing 25 ℃ is the manufacture method of 20～200 straight-run pitch, it is characterized in that: the crude oil that can access the straight-run pitch with following characteristic carries out air distillation: the cutting temperature of underpressure distillation is more than 600 ℃, penetration degree in the time of 25 ℃ surpasses 100, in being 500～650 ℃ scope, cutting temperature air distillation residual oil is carried out underpressure distillation, the diasphaltene residual oil of mix asphalt matter composition less than 13 quality % in the underpressure distillation residual oil that obtains then.
But such straight-run pitch can not attain full and complete satisfaction and be used for prolonging as far as possible the pitch of mating formation of the requirement that supplies the resistance to flow with the life-span, anti-crackle of mating formation in recent years.
Promptly, though the method for above-mentioned patent documentation 2 provides by the high cutting temperature that adopts unprecedented underpressure distillation so far and has made bituminous method at a low price, but with the gasoline in the raising oil, the yield of coal-diesel oil is main purpose, therefore do not consider almost that for improving bituminous resistance to flow and anti-crackle therefore this pitch may not necessarily meet the demands in this respect.
Patent documentation 1: the spy opens 2001-262157
Patent documentation 2: the spy opens 2005-23174
Non-patent literature 1: many fields, her rattan, pitch, (society) Japanese pitch association, Vol.23, No.157, the 41st page
In addition, aforesaid existing bituminous manufacturing is to adopt vacuum distillation apparatus that the air distillation residual oil of specific crude oil is handled, and this moment, manufacturing had the petroleum pitch of setting penetration degree by management distillation temperature and vacuum tightness.At this moment, by kind that changes crude oil or treatment temp, the vacuum tightness that changes vacuum distillation apparatus, the product pitch that the manufacturing needles in-degree is different is taken care of and shipment with the product jar by the difference of penetration degree.
Therefore, when with the product turnout of bituminous JIS specification (K2207), the kind of straight-run pitch is from penetration degree 0～20 to penetration degree 200～300, the grade that 10 kinds are arranged, therefore in order to make wherein and the grade of atrademarked is unified as product, the running pattern that has the atmospheric distillation plant and the vacuum distillation apparatus of trade mark number needs the product jar of product penetration degree number of levels simultaneously.
Originally the main purpose of crude Treatment is that production is the oil fuel of representative with gasoline, coal-diesel oil, and the pitch of producing by-product is accessory purpose.But, when producing pitch simultaneously with oil fuel so far, preferentially carry out bituminous and create conditions, determine the transhipment condition of atmospheric distillation plant, vacuum distillation apparatus to be conformed to the crude oil kind with the bituminous characteristic for this reason.Therefore, be difficult to carry out efficiently former should be as the production of the oil fuel of main purpose, the shortcoming that the result exists the yield of oil fuel to be suppressed lowly.
In addition, as the manufacturing of reality by crude oil, with tundish according to the material asphalt class of the difference of penetration degree storage as the residual oil of vacuum distillation apparatus, then the material asphalt of each differing needles in-degree of set amount is transferred in the product jar, in the product jar, mix, make the product of setting the penetration degree grade.Shipment is the order according to client, is carried by canned tank car, the tank car etc. of being downloaded to of product of the penetration degree grade of ordering goods.
Therefore, need the product jar of number of the penetration degree grade of product, exist problems such as the wide necessity of area, management are set.
Therefore, in above-mentioned existing manufacturing technology of asphalt, even can cut down the tundish number by certain reason or means, but constant be the product jar of number that still needs the penetration degree grade of product.For example, even abrogate tundish under the extreme case fully, produce pitch as target according to the penetration degree grade of product, the number of product jar also is same.Certainly, will ignore the efficient that oil fuel is produced in this case fully.
Should illustrate, more than the background technology of relevant manufacturing technology of asphalt belong to technology general knowledge, do not have the prior art document of reference especially.
Summary of the invention
The object of the present invention is to provide and do not use special crude oil and miscellaneous technology, the asphalt for pavement of resistance to flow and anti-crackle excellence, penetration degree in the time of preferred 25 ℃ be 40～120 asphalt for pavement employing pipeline blending machine manufacture method and by its asphalt for pavement that makes, purpose is to provide the handiness that crude oil is selected to increase, the change of vacuum distillation apparatus operating condition is minimized, also can shipment even the product jar is not set, the bituminous manufacture method that manufacturing cost is cut down significantly.
Present inventors etc. are in order to solve above-mentioned problem, the bituminous manufacture method has been carried out conscientiously research, the result mixes by 3 kinds of pitches that will have particular characteristics, obtained the asphalt for pavement of resistance to flow and anti-crackle excellence, the penetration degree in the time of preferred 25 ℃ is 40～120 bituminous manufacture method and by its asphalt for pavement that makes.
That is, the 1st scheme of the present invention relates to asphalt composition for pavement, it is characterized in that, the penetration degree when being 25 ℃ is 40～120, softening temperature is 40～55 ℃ asphalt for pavement, and following component is mixed:
Penetration degree in the time of (1) 25 ℃ is more than 200, the kinematic viscosity when softening temperature is 20～50 ℃ and 120 ℃ is 100～400mm
2The underpressure distillation residual oil A of/s, it is by after carrying out air distillation to crude oil, in 500～650 ℃ cutting temperature scope, this air distillation residual oil is carried out underpressure distillation and obtain, when described crude oil carries out underpressure distillation under the cutting temperature more than 600 ℃, can access the straight-run pitch with following characteristic: the penetration degree in the time of 25 ℃ is more than 200, the kinematic viscosity when softening temperature is 20～50 ℃ and 120 ℃ is 100～400mm
2/ s;
Penetration degree in the time of (2) 25 ℃ is 10～90, the kinematic viscosity when softening temperature is 40～65 ℃ and 120 ℃ is 600～4000mm
2The underpressure distillation residual oil B of/s, it is by after carrying out air distillation to crude oil, in 500～650 ℃ cutting temperature scope, this air distillation residual oil is carried out underpressure distillation and obtain, when described crude oil carries out underpressure distillation under less than 600 ℃ cutting temperature, can access the straight-run pitch with following characteristic: the penetration degree in the time of 25 ℃ is 10～90, the kinematic viscosity when softening temperature is 40～65 ℃ and 120 ℃ is 600～4000mm
2/ s; With
(3) the solvent deasphalting residual oil C of bituminous matter composition less than 13 quality %.
In addition, the 2nd scheme of the present invention relates to the composition of the asphalt for pavement of the 1st scheme of the present invention, it is characterized in that, (1) underpressure distillation residual oil A of 10～60 weight parts, (2) underpressure distillation residual oil B of 10～60 weight parts and (3) solvent deasphalting residual oil C of 5～50 weight parts are mixed.
In addition, the 3rd scheme of the present invention relates to the manufacture method of the asphalt composition for pavement of the 1st scheme of the present invention or the 2nd scheme, wherein, adopt the pipeline blending machine material asphalt that these 3 kinds of penetration degrees of underpressure distillation residual oil A, underpressure distillation residual oil B and solvent deasphalting residual oil C or kinematic viscosity is different to mix with the ratio of the set amount obtained by this penetration degree or another approach of kinematic viscosity, make its penetration degree that reaches setting, thereby make the asphalt for pavement of penetration degree with this setting.
In addition, the 4th scheme of the present invention relates to the method that the manufacture method that adopts asphalt for pavement is made the asphalt composition for pavement of the 1st scheme of the present invention or the 2nd scheme continuously, it is characterized in that, possesses following operation 1)～4):
1) adopt viscometer to measure the operation of the kinematic viscosity of underpressure distillation residual oil A, underpressure distillation residual oil B and these 3 kinds of material asphalts of solvent deasphalting residual oil C respectively;
2) by the kinematic viscosity of obtaining, adopt mixture ratio that the calculating formula of another approach determines this material asphalt operation with the penetration degree that reaches setting;
3) according to the mixture ratio that should determine, the operation that adopts the pipeline blending machine that 3 kinds of these material asphalts are carried out the pipeline fusion; With
The operation with pitch supply handling equipment of setting penetration degree that 4) then, directly will make without storing device basically.
In addition, the 5th scheme of the present invention relates to the method that the manufacture method that adopts asphalt for pavement is made the asphalt composition for pavement of the 1st scheme of the present invention or the 2nd scheme continuously, it is characterized in that, possesses following operation 1)～4):
1) measures the operation of the penetration degree of underpressure distillation residual oil A, underpressure distillation residual oil B and these 3 kinds of material asphalts of solvent deasphalting residual oil C respectively;
2) by the penetration degree of obtaining, adopt mixture ratio that the calculating formula of another approach determines this material asphalt operation with the penetration degree that reaches setting;
3) according to the mixture ratio that should determine, the operation that adopts the pipeline blending machine that 3 kinds of these material asphalts are carried out the pipeline fusion; With
The operation with pitch supply handling equipment of setting penetration degree that 4) then, directly will make without storing device basically.
Should illustrate that the cutting temperature described in this specification sheets is meant the temperature that is scaled the temperature under the normal atmosphere.
According to the present invention, following method is provided: the vacuum residuum of the particular characteristics that causes by the cutting temperature that has a underpressure distillation with 2 kinds and have particular characteristics solvent deasphalting residual oil this add up to 3 kinds and mix, do not use the added ingredients of miscellaneous technology, high price, make the asphalt for pavement of resistance to flow and anti-crackle excellence, the penetration degree in the time of preferred 25 ℃ is 40～120 asphalt for pavement.
In addition, in this bituminous is made, material asphalt is mixed, make the pitch of various penetration degree grades, can directly be loaded on tank car, the tank car,, also can tackle the needs of shipment even without the product jar by using the pipeline blending machine.
Wherein, for each penetration degree grade, select crude oil in the past, change the operating condition of vacuum distillation apparatus or solvent deasphalting unit, therefore need prepare the product of various penetration degree grades through product jar commonly used.
Penetration degree when adopting the preferred asphalt for pavement of this method manufacturing to be 25 ℃ is 40～120, softening temperature is 40～55 ℃ asphalt for pavement.
Description of drawings
Fig. 1 is mixed with the pipeline blending machine by 3 kinds of material asphalts, the explanatory view of manufacture a product pitch and shipment.
Fig. 2 directly makes the explanatory view of 10 kinds of product pitches and shipment by vacuum distillation apparatus and solvent deasphalting unit.
Fig. 3 makes 3 kinds of material asphalts with vacuum distillation apparatus and solvent deasphalting unit, adopts a jar mixing to make the explanatory view of 10 kinds of product pitches and shipment by them.
Nomenclature
1,21,31: vacuum distillation apparatus
2,22,32: solvent deasphalting unit
3-1,33-1: material asphalt (middle penetration degree product) jar
3-2,33-2: material asphalt (high penetration degree product) jar
3-3,33-3: material asphalt (low penetration degree product) jar
4-1,4-2,4-3,24,34-1,34-2,34-3,37: jet pump
5-1,5-2,5-3: in-line viscometer
6-1,6-2,6-3,25,35-1,35-2,35-3,38: under meter
7-1,7-2,7-3: circulation line
8: the pipeline blending machine
23-1～10,36-1～10: product jar.
Embodiment
In manufacture method of the present invention, underpressure distillation residual oil A as the 1st asphalt stock, be the underpressure distillation residual oil with following characteristic: the penetration degree in the time of 25 ℃ is more than 200, preferred more than 250, and softening temperature is 20～50 ℃, the kinematic viscosity when preferred 25～35 ℃ and 120 ℃ is 100～400mm
2/ s, preferred 150～300mm
2/ s, it is by after carrying out air distillation to crude oil, in 500～650 ℃ cutting temperature scope, this air distillation residual oil is carried out underpressure distillation and obtain, when described crude oil carries out underpressure distillation under the cutting temperature more than 600 ℃, can access the straight-run pitch with following characteristic: the penetration degree in the time of 25 ℃ is more than 200, the kinematic viscosity when softening temperature is 20～50 ℃ and 120 ℃ is 100～400mm
2/ s.
If the characteristic of underpressure distillation residual oil A breaks away from above-mentioned scope, even underpressure distillation residual oil A, underpressure distillation residual oil B and the solvent deasphalting residual oil C of set amount are carried out compounding, can not satisfy mats formation takes the specification value of the asphalt for pavement of guiding principle (the road association distribution " asphalt pavement is wanted guiding principle " of Corporation in 1999 Japan) regulation, therefore not preferred.
Should illustrate that said penetration degree, softening temperature and kinematic viscosity all are values of measuring according to JISK2207 " petroleum pitch " here.
In manufacture method of the present invention, underpressure distillation residual oil B as the 2nd asphalt stock, be the underpressure distillation residual oil with following characteristic: the penetration degree in the time of 25 ℃ is 10～90, preferred 20～80, and softening temperature is 40～65 ℃, the kinematic viscosity when preferred 44～54 ℃ and 120 ℃ is 600～4000mm
2/ s, preferred 700～3500mm
2/ s, it is by after carrying out air distillation to crude oil, in 500～650 ℃ cutting temperature scope, this air distillation residual oil is carried out underpressure distillation and obtain, when described crude oil carries out underpressure distillation under less than 600 ℃ cutting temperature, can access the straight-run pitch with following characteristic: the penetration degree in the time of 25 ℃ is 10～90, the kinematic viscosity when softening temperature is 40～65 ℃ and 120 ℃ is 600～4000mm
2/ s.
If the characteristic of underpressure distillation residual oil B breaks away from above-mentioned scope, even underpressure distillation residual oil A, underpressure distillation residual oil B and the solvent deasphalting residual oil C of set amount are carried out compounding, can not satisfy the specification value of the asphalt for pavement of " asphalt pavement is wanted guiding principle " regulation, therefore not preferred.
As the crude oil that is used to make underpressure distillation residual oil A,, can be the crude oil of any kind of as long as can make vacuum residuum with above-mentioned characteristic.Promptly, if as mentioned above, behind crude oil atmospheric distillation, when under the cutting temperature more than 600 ℃, carrying out underpressure distillation, can access the crude oil of straight-run pitch with following characteristic, then can use any crude oil: the penetration degree in the time of 25 ℃ is more than 200, and softening temperature is 20～50 ℃, and the kinematic viscosity in the time of 120 ℃ is 100～400mm
2/ s.
Also there is the restriction on the device, therefore so far as mentioned above cutting temperature be that the pyritous example is few, but kind as the crude oil that can specifically utilize, be preferably placed at paraffinic crude and naphthenic base crude intermediary intermediate base crude oil, can enumerate for example Arabic ultralight matter crude oil, Arabian light, Wu Musafu crude oil, Oman's crude oil, ス エ ズ ミ Star Network ス crude oil, Dubai crude oil, ベ リ one crude oil, マ one バ Application crude oil, ア Star パ one ザ Network system crude oil, the former wet goods of Qatar マ リ Application.These crude oil can mix use.
As the crude oil that is used to make underpressure distillation residual oil B,, can be the crude oil of any kind of as long as can make vacuum residuum with above-mentioned characteristic.Promptly, if as mentioned above, behind crude oil atmospheric distillation, when under less than 600 ℃ cutting temperature, carrying out underpressure distillation, can access the crude oil of straight-run pitch with following characteristic, then can use any crude oil: the penetration degree in the time of 25 ℃ is 10～90, and softening temperature is 40～65 ℃, and the kinematic viscosity in the time of 120 ℃ is 600～4000mm
2/ s.
Particularly, be preferably placed at paraffinic crude and naphthenic base crude intermediary intermediate base crude oil and naphthenic base crude, can enumerate for example Iranian light crude, Iran's heavy crude, matter crude oil in the Arab, Arabic heavy crude, カ Off ジ crude oil, Kuwait Crude Oil, Minas crude, ア Le ラ イ ア Application crude oil, イ ス system ス crude oil, エ オ シ Application crude oil, ソ リ ユ one シ ユ crude oil, デ イ ア Off ア Na crude oil, バ チ ヤ ケ ロ crude oil, ボ ス カ Application crude oil, ニ ユ one ト ラ Le ゾ one Application ス ペ シ ヤ Le crude oil, the refined crude oil of horse, the former wet goods of オ イ Le サ Application De that ラ ウ エ one crude oil or Canada produce.These crude oil can mix use.
Underpressure distillation residual oil A and underpressure distillation residual oil B be respectively by carrying out air distillation to above-mentioned crude oil under less than 400 ℃, in the scope of 500～650 ℃ of cutting temperatures the air distillation residual oil that makes is carried out underpressure distillation then and make.The operation of air distillation, underpressure distillation is carried out respectively, supplies to following mixed processes.
Moreover, according to known habitual technology general knowledge, kind by suitable selection crude oil, the cutting temperature of proper handling air distillation temperature operation condition, underpressure distillation can easily make penetration degree, softening temperature, kinematic viscosity etc. respectively and be the underpressure distillation residual oil A of above-mentioned characteristic and underpressure distillation residual oil B simultaneously.
In manufacture method of the present invention, be the solvent deasphalting residual oil of bituminous matter composition less than 13 quality % as the solvent deasphalting residual oil C of the 3rd asphalt stock.
When solvent deasphalting residual oil breaks away from above-mentioned scope, even underpressure distillation residual oil A, underpressure distillation residual oil B and the solvent deasphalting residual oil C of set amount are carried out compounding, can not satisfy the specification value of the asphalt for pavement of " asphalt pavement is wanted guiding principle " regulation, therefore not preferred.
Preferred solvent deasphalting residual oil is the solvent deasphalting residual oil with following characteristic: the penetration degree in the time of 25 ℃ is 2～25, preferred 7～20, and softening temperature is 55～70 ℃, preferred 55～65 ℃, and the kinematic viscosity in the time of 120 ℃ is 1000～5000mm
2/ s, preferred 1500～4000mm
2/ s.
As the crude oil that is used to make solvent deasphalting residual oil C,, can be the crude oil of any kind of as long as can make diasphaltene residual oil with above-mentioned characteristic.Particularly, be preferably placed at paraffinic crude and naphthenic base crude intermediary intermediate base crude oil and naphthenic base crude, can enumerate for example Iranian light crude, Iran's heavy crude, matter crude oil in the Arab, Arabic heavy crude, カ Off ジ crude oil, Kuwait Crude Oil, Minas crude, ア Le ラ イ ア Application crude oil, イ ス system ス crude oil, エ オ シ Application crude oil, ソ リ ユ one シ ユ crude oil, デ イ ア Off ア Na crude oil, バ チ ヤ ケ ロ crude oil, ボ ス カ Application crude oil, ニ ユ one ト ラ Le ゾ one Application ス ペ シ ヤ Le crude oil, the refined crude oil of horse, the former wet goods of オ イ Le サ Application De that ラ ウ エ one crude oil or Canada produce.These crude oil can mix use.
Solvent deasphalting residual oil is stock oil with vacuum residuum, the long residuum that is made by these crude oil, uses propane, butane, Skellysolve A etc. as solvent, by at pressure 20～40kg/cm
2The composition extracting of depressing, will contain in a large number under the condition of 40～190 ℃ of extraction temperatures saturated composition, aromatic component that adds remove and make.Preferred solvent is a propane.
Underpressure distillation residual oil A, the underpressure distillation residual oil B and the solvent deasphalting residual oil that make are as mentioned above mixed in the proper ratio, make asphalt for pavement.
The compounding ratio of each composition is suitably determined, carry out compounding and mixing with following ratio: the underpressure distillation residual oil A of 10～60 weight parts, preferred 20～50 weight parts, the solvent deasphalting residual oil C of the underpressure distillation residual oil B of 20～60 weight parts, preferred 20～50 weight parts and 5～50 weight parts, preferred 10～45 weight parts.
Compounding, the blended method of above-mentioned underpressure distillation residual oil A, underpressure distillation residual oil B and this 3 composition of solvent deasphalting residual oil are not particularly limited, and can adopt existing known method.
Moreover, the method that compounding, the blended method of above-mentioned underpressure distillation residual oil A, underpressure distillation residual oil B and this 3 composition of solvent deasphalting residual oil preferably adopts and use following method, uses the pipeline blending machine.
Adopt this method, as explained above, can directly be loaded on tank car, the tank car, even it is the product-free jar also can be tackled the requirement of shipment, preferred from this respect.
Below the method for using this pipeline blending machine is described.
At first, will be stored in for the time being as 3 kinds of different material asphalts of penetration degree of blending base material in the jar of 3 centres (raw material).In tundish separately, carry out a jar fusion, in jar, make it even.The method of jar fusion is not particularly limited, and for example can directly agitator be installed in jar and stir, and also circulation line can be set in addition, makes it circulation by this circulation line and carries out fusion.
Then, from 3 tundish with the ratio of mixture set with material asphalt import pipe blending machine, in pipeline, mix, make the pitch of the penetration degree grade of setting.It directly is loaded on tank car, the tank car etc., delivers to client.At this moment,,, also allow surge tank etc. is set as described later, in the surge tank of from the pipeline blending machine, packing into for the time being etc., be loaded into then in tank car, the tank car etc., deliver to client in order to ensure safety except directly being loaded into tank car, tank car etc. go up.Certainly, also can store in the product jar.
For example, when 10 kinds of grades of the penetration degree grade 0～20 to 200～300 of making JIS K2207 " petroleum pitch ", can prepare tundish to 3 kinds of material asphalts shown in following according to penetration degree.
That is,
(1) the middle pitch of penetration degree: for example penetration degree 20～120, preferred 40～100, more preferably 60～80 straight-run pitch, penetration degree is 60～80 o'clock, need not mix and just can guarantee to mat formation middle maximum grade of using individually, therefore most preferably, if penetration degree is below 20, mix owing to will contain the high penetration degree pitch of low boiling point component in a large number, therefore not preferred.
(2) the high pitch of penetration degree: for example penetration degree 200～800, preferred 200～500, more preferably 200～300 straight-run pitch, if penetration degree surpasses 800, the low boiling point component that mixes in the product pitch of making increases, underproof possibility height in the flash-point of JIS specification, thin film heating test, the evaporation test, therefore not preferred.In addition, if penetration degree is below 200, owing to can not make 200～300 grades of JIS specification, therefore not preferred.With
(3) the low pitch of penetration degree: for example penetration degree 0～40, preferred 0～20, more preferably 0～10 straight-run pitch or solvent deasphalting pitch.If penetration degree is more than 40, can not make the penetration degree grade 0～10,10～20 and 20～40 of JIS specification, therefore not preferred, if penetration degree is 0～10, owing to can make the whole low penetration degree grade products of JIS specification, therefore most preferably.
Make 3 kinds of material asphalts as mentioned above, they are taken care of with middle (raw material) jar.In tundish, preferably be provided for adopting as mentioned above jar fusion to make material asphalt stir the jet mixer of usefulness or pusher mixing machine etc. uniformly.Circulation line can also further be set.
On the arbitrary position between tundish and jet pump or jet pump and the pipeline blending machine, can be provided for measuring the viscometer of the viscosity of material asphalt.Obtain penetration of bitumens by calculating by the viscosity number of this mensuration, calculate the blend ratio that is used to make the bituminous material asphalt of setting penetration degree.Viscometer can use manually or automatic suitable mode.For example, if utilize in-line viscometer, can be continuously or measure viscosity off and on, therefore preferred, be not limited to this certainly.
Obtain penetration degree by converting and describe, if but exist and also can utilize this rerum natura by manually or automatically measuring other the suitable rerum naturas that are used to obtain penetration degree that convert by viscosity.
In addition, the penetration degree of material asphalt can be taked sample from each head tank, carry out practical measurement.
By viscosity conversion is penetration degree
By viscosity conversion is penetration degree, can use known conversion formula in the document.According to following document 1, penetration degree can adopt formula 1 to be obtained by kinematic viscosity.
LogV=-0.911 * logP+4.313 formula 1
Kinematic viscosity (mm in the time of V:135 ℃
2/ s)
Penetration degree in the time of P:25 ℃ (1/10mm)
Document 1:(society) Japanese pitch association clear with 62 years " relevant mat formation " report with the quality of straight-run pitch and the result of study of proterties
Should illustrate because of the difference of crude oil class, purification condition, have time error to increase, the therefore preferred material asphalt of reality that uses is in advance obtained special-purpose conversion formula.
Calculate ratio of mixture by penetration degree
3 kinds of material asphalts that penetration degree is different mixed separately combined amount when having the pitch of target penetration degree, can calculate by formula 2 and formula 3.But, can not all determine a, b, c by formula 2 and formula 3, so a, b, that why c is worth needs is given in advance.
But,,, therefore, obtain the relation of ratio of mixture and penetration degree preferably in advance with the material asphalt mixing of reality sometimes by the calculated value extrapolation because of the difference of material asphalt.
100 * logP=a * logP
1+ b * logP
2+ c * logP
3Formula 2
A+b+c=100 formula 3
A: the combined amount of material asphalt A (%)
B: the combined amount of material asphalt B (%)
C: the combined amount of material asphalt C (%)
P: mixed penetration of bitumens
P
1: the penetration degree of material asphalt A
P
2: the penetration degree of material asphalt B
P
3: the penetration degree of material asphalt C
In order to make the pitch of setting penetration degree, calculate their mixture ratio by the penetration degree of the material asphalt of measuring in advance, control the flow of material asphalt automatically or manually with the under meter between the pipeline blending machine that is arranged on jet pump and double as pipe arrangement, send into the pipeline blending machine, in pipe arrangement, mix, make the product pitch of setting penetration degree.
Can use the known agitator that can carry out the pipeline fusion in the pipeline blending machine.For example, can use static mixer etc., therefore specifically can use the trade(brand)name of Sumitomo Heavy Industries, Ltd's system: the static mixing unit of Sumitomo/ス Le ザ one.
Mixed product pitch can be stored in the product jar by the pipeline blending machine, also can be directly or be loaded into immediately on tank car, the tank car and shipment.A part can certainly be stored in the product jar.Moreover the protection pipeline can suitably be provided with surge tank on the position of fronts such as shipment pipeline in order to have an accident in operation etc.
In addition, mensuration has been used the JIS specification product pitch in addition of penetration degree grade, for example adopts the dynamic viscoelastic value (G of dynamic shear rheometer in the SUPERPAVE of the U.S. (Superior Performing Asphalt Pavement) the tackiness agent specification (hereinafter referred to as the SHRP specification)
*/ sin δ), calculates the ratio of mixture of material asphalt class, also can produce the pitch of SHRP specification.
Penetration degree during preferred 25 ℃ of the asphalt for pavement that makes like this is 40～120, and as asphalt for pavement, more preferably the penetration degree 25 ℃ the time is 40～120, softening temperature is 40～55 ℃ pitch.
The pitch that adopts above method to make can adopt customary way suitably to mix with aggregate etc., and suitable supply is used to mat formation.
Embodiment
The present invention will be described below to adopt following embodiment etc.
Resistance to flow in embodiment 1～embodiment 7 and the comparative example 1～comparative example 3 is estimated by the dynamic stability of wheelmark test.In addition similarly, anti-crackle is estimated by the pliability test of asphalt mixture.Wheelmark test and pliability test adopt the method for 3-7-3 " wheelmark test method ", 3-7-5 " bend test method " record of Japan road association of Corporation " the test method(s) brief guide of mating formation " to carry out respectively.Below be convenient for reference and briefly recorded and narrated this test method(s).
The wheelmark test
The heating of pitch and aggregate is mixed the asphalt mixture that obtains put into the template (300 * 300 * 50mm) of setting, carry out shaping and obtain supplying the examination body, (686 ± 10N) small-sized wheel is supplying to-and-fro movement on the examination body to make given load in 60 ℃ thermostatic chamber, deflection (rut groove amount) when measuring 45 minutes and 60 minutes, it is (inferior/as mm), to estimate the resistivity of asphalt mixture for the rut groove to obtain dynamic stability divided by deflection with the number of pass times of small-sized wheel therebetween.
The value of dynamic stability (DS:Dynamic Stability) is big more, and the resistance to flow of asphalt pavement body is good more during expression high temperature.Generally, in order not produce the rut groove, dynamic stability is necessary for more than 500.
Pliability test
For examination body following making: pitch and aggregate heating are mixed, with the asphalt mixture that obtains put into setting template (300 * 300 * 50mm), cut out the shape of 300 * 100 * 50mm after the shaping.Pliability test in central part, is obtained the maximum load when rupturing with load speed 50mm/min concentrated loads by being installed to the indoor load test machine that is arranged on design temperature.Maximum load when the change test temperature is measured for the fracture of examination body repeatedly, obtain when test temperature is descended temperature (embrittlement temperature) when being converted to brittle rupture by the fracture of flowing by the relation curve of maximum load and temperature, the anti-crackle during to the asphalt pavement body hypothermia is estimated.Embrittlement temperature is necessary for below 0 ℃.
(result's evaluation method)
By the wheelmark test-results, to be 500 (inferior/as when mm) above, to be evaluated as anti-rut groove good (zero) when dynamic stability.(*) is bad.
In addition, by the pliability test result, be to be evaluated as good (zero) more than 0 ℃ the time with embrittlement temperature.(*) is bad.
The characteristic and propane deasphalting residual oil C (the bituminous matter composition 10.9 quality %) characteristic (PDA) of 3 kinds of asphalt stocks (VR-B1, VR-B2, BR-B3) of the 3 kinds of asphalt stocks (VR-A1, VR-A2, VR-A3) of the underpressure distillation residual oil A that uses among embodiment 1～embodiment 7 and underpressure distillation residual oil B are shown in table 1.
Moreover the composition that can access the crude oil of above-mentioned underpressure distillation residual oil A (VR-A1, VR-A2, VR-A3) and underpressure distillation residual oil B (VR-B1, VR-B2, BR-B3) and PDA is shown in table 1.
The manufacturing of PDA is by using propane as solvent, at pressure 35kg/cm
2, carry out under 60 ℃ of the extraction temperatures.
＜embodiment 1～embodiment 3 〉
Above-mentioned underpressure distillation residual oil A, underpressure distillation residual oil B and solvent deasphalting residual oil C are mixed, as the suitable product of the most normally used penetration degree class 6 0～80 of asphalt for pavement, penetration degree is modulated to about 70, the manufacturing asphalt for pavement.
Blending ratio, the characteristic of each composition and the evaluation result that is produced by the asphalt mixture test are shown in table 2.
As shown in Table 2, among embodiment 1～embodiment 3, all demonstrating excellent characteristic aspect resistance to flow and the anti-crackle.
＜embodiment 4～embodiment 7 〉
Near the higher limit of setting the compounding weight range, the combined amount of lower value,, make asphalt for pavement with respectively with above-mentioned underpressure distillation residual oil A, underpressure distillation residual oil B and solvent deasphalting residual oil C compounding.
Blending ratio, the characteristic of each composition and the evaluation result that is produced by the asphalt mixture test are shown in table 2.
As shown in Table 2, among embodiment 4～embodiment 7, all demonstrating excellent characteristic aspect resistance to flow and the anti-crackle.
＜comparative example 1 〉
In 3 kinds of asphalt stocks (VR-B1, VR-B2, VR-B3) of above-mentioned underpressure distillation residual oil B, the cutting temperature of the underpressure distillation of VR-B2 is 550 ℃, and the penetration degree of the residual oil that makes is 70, and softening temperature is 48.5 ℃, and kinematic viscosity is 817mm
2/ s, approaching with the straight-run pitch that adopts existing method to make, and the specification of suitable asphalt for pavement, therefore directly it is tested as asphalt for pavement separately.
As shown in table 2, the resistance to flow of comparative example 1 and anti-crackle all can not be kept the resistance to flow and the anti-crackle of target contentedly.
＜comparative example 2, comparative example 3 〉
Only, make the asphalt for pavement of 2 compositions system at above-mentioned underpressure distillation residual oil A or the above-mentioned solvent deasphalting residual oil of compounding C respectively similarly in above-mentioned underpressure distillation residual oil B only.Blending ratio, the characteristic of each composition and the evaluation result that is produced by the asphalt mixture test are shown in table 2.
As shown in table 2, comparative example 2 and comparative example 3 all can not satisfy the resistance to flow and the anti-crackle of target simultaneously.
Table 1
| Underpressure distillation residual oil A | Underpressure distillation residual oil B | PDA | |||||
| VR-A1 | VR-A2 | VR-A3 | VR-B1 | VR-B2 | VR-B3 | ||
| Crude oil is formed, quality % | |||||||
| Arabic ultralight matter crude oil | 70 | 75 | 80 | - | - | - | 75 |
| Arabian light | 30 | 25 | 20 | - | - | - | 25 |
| Arabic heavy crude | - | - | - | 50 | 40 | 45 | - |
| カ Off ジ crude oil | - | - | - | 50 | 40 | 45 | - |
| Kuwait Crude Oil | - | - | - | - | 20 | 10 | - |
| The air distillation cutting temperature, ℃ | 380 | 380 | 385 | 385 | 390 | 390 | 380 |
| The underpressure distillation cutting temperature, ℃ | 600 | 600 | 600 | 550 | 550 | 550 | 600 |
| Penetration degree (25 ℃), 1/10mm | 250 | 300 | ＞300 | 40 | 70 | 100 | 9 |
| Softening temperature, ℃ | 32.6 | 28.1 | 20.1 | 51.9 | 48.5 | 44.8 | 65 |
| Kinematic viscosity (120 ℃), mm 2/s | 278 | 205 | 150 | 1467 | 817 | 708 | 2900 |
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
Embodiment 6 | Embodiment 7 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |||
| The combined amount weight part | Underpressure distillation residual oil A | VR-A1 | 50 | - | - | - | 60 | - | 40 | - | 62 | - |
| VR-A2 | - | 35 | - | - | - | - | - | - | - | - | ||
| VR-A3 | - | - | 22 | 24 | - | 11 | - | - | - | - | ||
| Underpressure distillation residual oil B | VR-B1 | - | - | - | - | 20 | - | - | - | - | - | |
| VR-B2 | 20 | 40 | 60 | - | - | 80 | - | 100 | - | - | ||
| VR-B3 | - | - | - | 60 | - | - | 10 | - | - | 65 | ||
| PDA | 30 | 25 | 18 | 15 | 20 | 9 | 50 | - | 38 | 35 | ||
| Characteristic | Penetration degree (25 ℃), 1/10mm | 71 | 70 | 71 | 98 | 89 | 70 | 43 | 70 | 71 | 43 | |
| Softening temperature (R﹠B), ℃ | 48.0 | 47.5 | 47.5 | 42.5 | 42.5 | 48.5 | 50.0 | 48.2 | 47.5 | 51.5 | ||
| Admixture characteristic | The wheelmark test | |||||||||||
| Dynamic stability, inferior/mm | 820 | 800 | 790 | 550 | 650 | 700 | 980 | 650 | 450 | 850 | ||
| Estimate | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | × | ○ | ||
| Pliability test | ||||||||||||
| Embrittlement temperature, ℃ | -4 | -1 | 0 | -7 | -5 | -3 | -2 | 3 | 7 | 3 | ||
| Estimate | ○ | ○ | ○ | ○ | ○ | ○ | ○ | × | × | × | ||
＜embodiment 8 〉
Fig. 1 is the synoptic diagram that is used to represent following content: make 2 kinds of material asphalt classes with 1 vacuum distillation apparatus, change crude oil and operating condition, and make a kind of material asphalt class with 1 solvent deasphalting unit, by adding up to 3 kinds of material asphalts, adopt 10 kinds of product pitches of the penetration degree grade 0～10 to 200～300 of regulation among the pipeline blending machine mixing JISK2207 " petroleum pitch ", make and shipment.
As middle (raw material) jar, be the material asphalt jar 3-1 that uses of middle penetration degree, the material asphalt jar 3-3 that uses of material asphalt jar 3-2 that high penetration degree is used and low penetration degree.
The middle penetration degree material asphalt class of manufacturing needles in-degree 70 in the vacuum distillation apparatus of putting down in writing in Fig. 11 (below be abbreviated as SRA70), keeping is in material asphalt jar 3-1.And then in vacuum distillation apparatus 1, change crude oil and operating condition, and the high penetration degree material asphalt class of manufacturing needles in-degree 230 (below be abbreviated as SRA230), keeping is in material asphalt jar 3-2.
On the other hand, the low penetration degree material asphalt class of manufacturing needles in-degree 7 in solvent deasphalting unit 2 (below be abbreviated as PDA7), keeping is in material asphalt jar 3-3.
These material asphalt classes, the circulation line 7 by jar circulates, and makes in the jar to homogenize, and measures kinematic viscosity with in-line viscometer 5 then.Kinematic viscosity is scaled 135 ℃, re-uses formula 1 and is scaled penetration degree (25 ℃).
For product pitch (product A) shipment with the penetration degree class 4 0～60 of JIS K2207 " petroleum pitch ", SRA70 and PDA7 are mixed, for the product A of manufacturing objective penetration degree 50, calculate their ratio of mixture by formula 2 and formula 3.
Its result for the product A of manufacturing objective penetration degree 50, determines and 85.4% SRA70 and 14.6% PDA7 can be mixed.In order to reach this ratio, dominant discharge meter 6-1 and 6-3 directly are loaded on the tank car by pipeline blending machine 8.The actual measurement penetration degree of this product A is 52.Certainly, proofread and correct, can further improve precision if make calibration curve in addition, even but have this difference, enough in practicality.
In addition,, SRA70 and SRA230 are mixed,, calculate their ratio of mixture by formula 2 and formula 3 for the product B of manufacturing objective penetration degree 90 for product pitch (product B) shipment with penetration degree grade 80～100.Its result for the product B of manufacturing objective penetration degree 90, determines and 78.9% SRA70 and 21.1% SRA230 can be mixed.In order to reach this ratio, dominant discharge meter 6-1 and 6-2 directly are loaded on the tank car by pipeline blending machine 8.The actual measurement penetration degree of this product B is 89.Certainly, proofread and correct, can further improve precision if make calibration curve in addition, even but have this difference, enough in practicality.
Wherein, because material asphalt only sets in the scope of 3 kinds of penetration degree grades roughly, so selections of the crude oil of crude unit, operating condition etc. are compared with the past, and its degree of freedom is big, helps the production efficiency raising.
＜comparative example 4 〉
The following flow process of schematic representation among Fig. 2: in 1 vacuum distillation apparatus 21 and 1 solvent deasphalting unit 22, change kind, the operating condition of crude oil, directly make the 10 kinds of product pitch and the shipment of the penetration degree grade 0～10 to 200～300 of regulation among the JIS K2207 " petroleum pitch ".
For the pitch that directly manufactures a product, (raw material) jar in the middle of therefore not having.
In the vacuum distillation apparatus of in Fig. 2, putting down in writing 21, change crude oil, operating condition, directly make 8 kinds of product pitches, be penetration degree grade 20～40,40～60,60～80,80～100,100～120,120～150,150～200,200～300, be stored in special-purpose product jar 23-1 respectively in 23-8.
In addition, in solvent deasphalting unit 22, change operating condition, make 2 kinds of product pitches, promptly the penetration degree grade 0～10,10～20, are stored in respectively among special-purpose the product jar 23-9 and 23-10.
Should illustrate that above-mentioned manufacturing is owing to be the grade that directly manufactures a product, so the amplitude of the selection of the selection of crude oil, operating condition is narrow and extremely strict, the production of oil fuel is said nothing of, even pitch also has to its production efficiency has been had no regard for.
＜comparative example 5 〉
The following flow process of Fig. 3 schematic representation: in 1 vacuum distillation apparatus 31 and 1 solvent deasphalting unit 32, change kind, the operating condition of crude oil, make 3 kinds of material asphalts, mix by they being carried out jar, make the 10 kinds of pitch and the shipment of the penetration degree grade 0～10 to 200～300 of regulation among the JIS K2207 " petroleum pitch ".
As middle (raw material) jar, possesses the material asphalt jar 33-3 that material asphalt jar 33-1 that middle penetration degree uses, material asphalt jar 33-2 that high penetration degree is used and low penetration degree are used.
The material asphalt of the middle penetration degree of manufacturing needles in-degree about 70 (material asphalt 1) in the vacuum distillation apparatus of putting down in writing in Fig. 3 31, keeping is in material asphalt jar 33-1.In vacuum distillation apparatus 31, change crude oil and operating condition again, the material asphalt of the high penetration degree of manufacturing needles in-degree about 230 (material asphalt 2), keeping is in material asphalt jar 33-2.On the other hand, the material asphalt class of the low penetration degree of manufacturing needles in-degree about 5 (material asphalt 3) in solvent deasphalting unit 32, keeping is in material asphalt jar 33-3.Circulating homogenizes by circulation line (not shown among Fig. 3) for they, takes sample then, measures penetration degree.By this penetration degree, calculate mixture ratios with formula 2 and formula 3, with material asphalt 1 and the material asphalt 2 product jar of packing into, in jar, mix 8 kinds of product pitches of manufacturing needles in-degree grade 20～40 to 200～300 with the ratio set.The mixing of product jar and the mixed phase of head tank are together.
On the other hand, with material asphalt 2 and the material asphalt 3 product jar of packing into, in jar, mix the product pitch of manufacturing needles in-degree grade 10～20 with the ratio set.
In this comparative example method, the number of product jar must be the number of product hierarchy.
Claims (5)
1. asphalt composition for pavement is characterized in that, the penetration degree when being 25 ℃ is 40～120, softening temperature is 40～55 ℃ asphalt composition for pavement, and above-mentioned asphalt composition for pavement mixes following component:
Penetration degree in the time of (1) 25 ℃ is more than 200, the kinematic viscosity when softening temperature is 20～50 ℃ and 120 ℃ is 100～400mm
2The underpressure distillation residual oil A of/s, it is by after carrying out air distillation to crude oil, in 500～650 ℃ cutting temperature scope, this air distillation residual oil is carried out underpressure distillation and obtain, when described crude oil carries out underpressure distillation under the cutting temperature more than 600 ℃, can access the straight-run pitch with following characteristic: the penetration degree in the time of 25 ℃ is more than 200, the kinematic viscosity when softening temperature is 20～50 ℃ and 120 ℃ is 100～400mm
2/ s;
Penetration degree in the time of (2) 25 ℃ is 10～90, the kinematic viscosity when softening temperature is 40～65 ℃ and 120 ℃ is 600～4000mm
2The underpressure distillation residual oil B of/s, it is by after carrying out air distillation to crude oil, in 500～650 ℃ cutting temperature scope, this air distillation residual oil is carried out underpressure distillation and obtain, when described crude oil carries out underpressure distillation under less than 600 ℃ cutting temperature, can access the straight-run pitch with following characteristic: the penetration degree in the time of 25 ℃ is 10～90, the kinematic viscosity when softening temperature is 40～65 ℃ and 120 ℃ is 600～4000mm
2/ s; With
(3) the solvent deasphalting residual oil C of bituminous matter composition less than 13 quality %.
2. the described asphalt composition for pavement of claim 1 is characterized in that, (1) underpressure distillation residual oil A of 10～60 weight parts, (2) underpressure distillation residual oil B of 10～60 weight parts and (3) solvent deasphalting residual oil C of 5～50 weight parts are mixed.
3. the manufacture method of claim 1 or 2 described asphalt composition for pavement, wherein, adopt the pipeline blending machine that these 3 kinds of penetration degrees of underpressure distillation residual oil A, underpressure distillation residual oil B and solvent deasphalting residual oil C, kinematic viscosity or the two all different material asphalt ratio with the set amount obtained by this penetration degree or another approach of kinematic viscosity is mixed respectively, make its penetration degree that reaches setting, thereby make the asphalt for pavement of penetration degree with this setting.
4. the manufacture method of employing asphalt for pavement is made the method for claim 1 or 2 described asphalt composition for pavement continuously, it is characterized in that possessing following operation 1)～4):
1) adopt viscometer to measure the operation of the kinematic viscosity of underpressure distillation residual oil A, underpressure distillation residual oil B and these 3 kinds of material asphalts of solvent deasphalting residual oil C respectively;
2) by the kinematic viscosity of obtaining, adopt mixture ratio that the calculating formula of another approach determines this material asphalt operation with the penetration degree that reaches setting;
3) according to the mixture ratio that should determine, the operation that adopts the pipeline blending machine that 3 kinds of these material asphalts are carried out fusion; With
The operation with pitch supply handling equipment of setting penetration degree that 4) then, directly will make without storing device basically.
5. the manufacture method of employing asphalt for pavement is made the method for claim 1 or 2 described asphalt composition for pavement continuously, it is characterized in that possessing following operation 1)～4):
1) measures the operation of the penetration degree of underpressure distillation residual oil A, underpressure distillation residual oil B and these 3 kinds of material asphalts of solvent deasphalting residual oil C respectively;
2) by the penetration degree of obtaining, adopt mixture ratio that the calculating formula of another approach determines this material asphalt operation with the penetration degree that reaches setting;
3) according to the mixture ratio that should determine, the operation that adopts the pipeline blending machine that 3 kinds of these material asphalts are carried out fusion; With
The operation with pitch supply handling equipment of setting penetration degree that 4) then, directly will make without storing device basically.
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| JP2005374201A JP4739944B2 (en) | 2005-12-27 | 2005-12-27 | Method for producing paving asphalt and paving asphalt obtained thereby |
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| JP2006-033950 | 2006-02-10 | ||
| JP2006033950A JP5238133B2 (en) | 2006-02-10 | 2006-02-10 | Asphalt continuous manufacturing method |
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| CN101948624A (en) * | 2010-09-10 | 2011-01-19 | 安徽赛迪冷沥青道路材料研究所有限公司 | Movable asphalt production equipment |
| CN105368491A (en) * | 2015-11-26 | 2016-03-02 | 佛山高富中石油燃料沥青有限责任公司 | Improved asphalt with good climatic suitable ability and manufacturing method thereof |
| CN114426778A (en) * | 2020-10-29 | 2022-05-03 | 中国石油化工股份有限公司 | Asphalt composition and preparation method thereof |
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| CN102839015B (en) * | 2012-09-18 | 2014-10-15 | 中国石油天然气股份有限公司 | Method for producing road asphalt through super heavy oil |
| JP5818765B2 (en) * | 2012-09-25 | 2015-11-18 | Ｊｘ日鉱日石エネルギー株式会社 | Asphalt composition for pavement and method for producing the same |
| JP6016713B2 (en) * | 2013-06-07 | 2016-10-26 | Ｊｘエネルギー株式会社 | Asphalt composition and method for producing the same |
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| JP3895515B2 (en) * | 2000-03-15 | 2007-03-22 | 株式会社ジョモテクニカルリサーチセンター | Straight asphalt and manufacturing method thereof |
| CN1195803C (en) * | 2001-10-30 | 2005-04-06 | 中国石油化工股份有限公司 | Polymer modified compsn. of road bitumen and its prepn. method |
| JP3865394B2 (en) * | 2003-06-30 | 2007-01-10 | 新日本石油株式会社 | Method for manufacturing straight asphalt |
| CN1609167A (en) * | 2003-06-30 | 2005-04-27 | 新日本石油株式会社 | Asphalt for paving |
| JP3848935B2 (en) * | 2003-06-30 | 2006-11-22 | 新日本石油株式会社 | Paving asphalt |
| JP3837127B2 (en) * | 2003-06-30 | 2006-10-25 | 新日本石油株式会社 | Method for manufacturing straight asphalt for paving |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948624A (en) * | 2010-09-10 | 2011-01-19 | 安徽赛迪冷沥青道路材料研究所有限公司 | Movable asphalt production equipment |
| CN101948624B (en) * | 2010-09-10 | 2012-06-20 | 安徽赛迪冷沥青道路材料研究所有限公司 | Movable asphalt production equipment |
| CN105368491A (en) * | 2015-11-26 | 2016-03-02 | 佛山高富中石油燃料沥青有限责任公司 | Improved asphalt with good climatic suitable ability and manufacturing method thereof |
| CN114426778A (en) * | 2020-10-29 | 2022-05-03 | 中国石油化工股份有限公司 | Asphalt composition and preparation method thereof |
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