CN107434917B - A kind of Biological asphalt and preparation method thereof - Google Patents
A kind of Biological asphalt and preparation method thereof Download PDFInfo
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- CN107434917B CN107434917B CN201610390836.6A CN201610390836A CN107434917B CN 107434917 B CN107434917 B CN 107434917B CN 201610390836 A CN201610390836 A CN 201610390836A CN 107434917 B CN107434917 B CN 107434917B
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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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Abstract
The present invention relates to a kind of Biological asphalts and preparation method thereof.Described method includes following steps: 1) crushing biomass；It 2) is bio oil by gained biomass pyrolytic；3) by gained bio oil air-distillation, until gas phase temperature reaches 100 DEG C, in collecting biological oil > 100 DEG C of heavy constituent；4) aromatic naphtha is mixed after the bio oil heavy constituent being collected into being heated certain temperature；5) maintenance system temperature continues that polymer rubber substance is added thereto, and high speed shear obtains Biological asphalt.It is suitable for the bio oil of preparation Biological asphalt by converting biomass resource to, and bio oil obtained is combined with butadiene-styrene rubber/shoddy and utilizes processability more preferably novel recyclable organism-based road asphalt material.
Description
Technical field
The present invention relates to a kind of Biological asphalts and preparation method thereof, belong to the renewable road asphalt material technology neck of green
Domain.
Background technique
Currently, biomass resource is to separate to be born by separation means in the main Land use systems of road asphalt Material Field
Heavy constituent in material pyrolysis oil, is then used alone as asphalt material or is used in mixed way with asphalt, at present biology
Main problem existing for the pitch of matter resource preparation is what brittleness was larger under its low temperature condition, thus was prepared using biomass as raw material
Pitch cryogenic property is poor.
Butadiene-styrene rubber is the earliest general purpose rubber product for realizing industrialized production, and the raw material of shoddy generates every year
A large amount of waste tires, scrap rubber shoes and scrap rubber industrial product, to shoddy, this huge waste material is recycled again sharp
With with great environment and economic significance.
Summary of the invention
The object of the present invention is to provide a kind of Biological asphalts and preparation method thereof.It is suitable for by converting biomass resource to
The bio oil of Biological asphalt is prepared, and bio oil obtained is combined with butadiene-styrene rubber/shoddy and utilizes processability more excellent
Novel recyclable organism-based road asphalt material.
In order to reach the goals above, the present invention adopts the following technical scheme:
A kind of preparation method of Biological asphalt, includes the following steps:
1) biomass is crushed；
It 2) is bio oil by gained biomass pyrolytic；
3) by gained bio oil air-distillation, until gas phase temperature reaches 100 DEG C, in collecting biological oil > 100 DEG C of recombination
Point；
4) aromatic naphtha is mixed after the bio oil heavy constituent being collected into being heated certain temperature；
5) maintenance system temperature continues that polymer rubber substance is added thereto, and high speed shear obtains Biological asphalt.
In preparation method of the present invention, in step 1), the biomass can be selected from pine sawdust and/willow living is wooden
Bits；The biomass is first crushed to 20 mesh~60 mesh, spare.
In preparation method of the present invention, in step 2), the pyrolytic process temperature parameter is 400~700 DEG C, preferably
500~550 DEG C；The residence time is 2~5s, preferably 4~5s in the pyrolytic process；Pyrolysis protection gas is in the pyrolytic process
Nitrogen.The pyrolytic reaction can carry out in fluidized bed pyrolysis reactor.
In preparation method of the present invention, in step 4), the biomass pyrolysis oil heavy constituent being collected into is heated to 120
DEG C~130 DEG C, mix the aromatic naphtha of certain mass ratio；
In preparation method of the present invention, in step 4), the mixed ratio of the aromatic naphtha attach most importance to constituent mass 1~
5%, preferably 1~2%.
In preparation method of the present invention, in step 5), need slowly and equably to mix polymer rubber substance,
120 DEG C~130 DEG C, with 1500~3000r/min (preferably 2000r/min) 60~70min of high speed shear, obtain Biological asphalt.
In preparation method of the present invention, in step 5), the polymer rubber substance be average grain diameter be 80~
The butadiene-styrene rubber and/or shoddy of 100 mesh, mixed ratio attach most importance to the 10%~20% of constituent mass.
As a preferred embodiment of the present invention, the preparation method of the Biological asphalt, includes the following steps:
1) biomass powder is broken to 20 mesh~60 mesh, it is spare；
It 2) is bio oil by gained biomass pyrolytic；
The pyrolytic process temperature parameter is 400~700 DEG C, preferably 500~550 DEG C；When being stopped in the pyrolytic process
Between be 2s~5s, preferably 4~5s；Pyrolysis protection gas is nitrogen in the pyrolytic process.The pyrolytic reaction can be in fluid bed heat
It is carried out in solution reactor.
3) by gained bio oil air-distillation, until gas phase temperature reaches 100 DEG C, in collecting biological oil > 100 DEG C of recombination
Point；
4) the bio oil heavy constituent being collected into is heated to 120 DEG C~130 DEG C, mixes aromatic naphtha；The aromatic naphtha is mixed
Enter ratio and attaches most importance to the 1~5% of constituent mass, preferably 1~2%；
5) maintenance system temperature needs slowly and equably to mix polymer rubber substance, at 120 DEG C~130 DEG C, with
1500~3000r/min (preferably 2000r/min) 60~70min of high speed shear, obtains Biological asphalt；
The polymer rubber substance is the butadiene-styrene rubber and/or shoddy of 80~100 mesh of average grain diameter, additive ratio
Example attaches most importance to the 10%~20% of constituent mass.
The present invention also provides Biological asphalts prepared by the above method.
Beneficial effects of the present invention are as follows:
Reproducible biomass resource is combined into utilization with butadiene-styrene rubber, shoddy, and mixes a small amount of aromatic naphtha conduct
Solubilizer, the new bio base road asphalt material being prepared compared with dominance energy have significant advantage in high temperature performance, not only
The increasingly exhausted nervous situation of petroleum resources can be alleviated, moreover it is possible to open up the biomass resource application new in pavement material field
Diameter, and make contributions for the processing of this huge trade waste of waste tire and utilization；In addition, present invention gained is novel
Biology base road asphalt material can largely reduce the cost of road asphalt material, and be promoted to a certain degree individually with biomass
For the performance of the Biological asphalt of raw material preparation.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Raw materials used present embodiment is commercial product.
A kind of preparation method of the Biological asphalt of embodiment 1
The present embodiment provides a kind of preparation methods of Biological asphalt, include the following steps:
1) pine is crushed to 20 mesh~60 mesh, obtains particles of pine；
2) in fluidized bed pyrolysis reactor, it is passed through nitrogen as fluidized gas, under 500 DEG C of reaction temperatures, 3kg particles of pine
Enter fluidized-bed reactor from feed bin with the charging rate of 500g/h, stops 4s pyrolysis in a fluidized bed reactor, obtain biology
Oil；
3) gained pine pyrolysis bio-oils are distilled in atmospheric conditions to 100 DEG C, collect > 100 DEG C of heavy constituent；
4) gained pine bio oil > 100 DEG C component is heated to 120 DEG C~130 DEG C, the aromatic naphtha of its quality 2% is added；
5) average grain diameter for slowly and equably mixing pine bio oil > 100 DEG C constituent mass 10% respectively is 80~100
New bio asphalt sample is prepared at 120 DEG C~130 DEG C with 2000r/min high speed shear 60min in purpose butadiene-styrene rubber
A。
A kind of preparation method of the Biological asphalt of embodiment 2
The present embodiment provides a kind of preparation methods of Biological asphalt, the difference from embodiment 1 is that: by fourth in embodiment 1
Benzene rubber volume changes into the 20% of heavy constituent quality, obtains new bio pitch B with legal system.
A kind of preparation method of the Biological asphalt of embodiment 3
The present embodiment provides a kind of preparation methods of Biological asphalt, the difference from embodiment 1 is that: by fourth in embodiment 1
Benzene rubber changes into shoddy, obtains new bio pitch C with legal system.
A kind of preparation method of the Biological asphalt of embodiment 4
The present embodiment provides a kind of preparation methods of Biological asphalt, the difference from embodiment 1 is that: it will give up in embodiment 1
Rubber powder yield is changed to the 20% of heavy constituent quality, obtains new bio pitch D with legal system.
A kind of preparation method of the Biological asphalt of embodiment 5
The present embodiment provides a kind of preparation methods of Biological asphalt, the difference from embodiment 1 is that: it will be loose in embodiment 1
The wooden particle changes into willow particle, obtains new bio pitch E with legal system.
A kind of preparation method of the Biological asphalt of embodiment 6
The present embodiment provides a kind of preparation methods of Biological asphalt, the difference from embodiment 1 is that: it will be loose in embodiment 2
The wooden particle changes into willow particle, obtains new bio pitch F with legal system.
A kind of preparation method of the Biological asphalt of embodiment 7
The present embodiment provides a kind of preparation methods of Biological asphalt, the difference from embodiment 1 is that: it will be loose in embodiment 3
The wooden particle changes into willow particle, obtains new bio pitch G with legal system.
A kind of preparation method of the Biological asphalt of embodiment 8
The present embodiment provides a kind of preparation methods of Biological asphalt, the difference from embodiment 1 is that: it will be loose in embodiment 4
The wooden particle changes into willow particle, obtains new bio pitch H with legal system.
Above-described embodiment 1-8 preparation is significantly lower than existing asphalt with new bio base road asphalt material cost,
And it can analyze out its high temperature performance by the performance test results of comparative example and Biological asphalt obtained by embodiment 1-8 to be superior to
The biology base road asphalt material individually prepared with biomass resource.
Performance test method is advised according to Department of Transportation's professional standard highway engineering pitch and Asphalt Mixture Experiment
Journey (JTG-E 20-2011) is to Biological asphalt obtained by embodiment 1-8 and comparative example 1 (individually using pine sawdust pyrolysis oil as raw material
Biological asphalt obtained) and comparative example 2 (individually using willow sawdust pyrolysis oil as Biological asphalt made from raw material) asphalt performance
It is measured.
The pavement performance of 1 Biological asphalt of table
As can be seen from the data in table 1, with merely using the Biological asphalt that biomass is prepared as raw material compared with, it is prepared by the present invention
Biological asphalt has certain advantage, especially embodiment 1 in high temperature performance, embodiment 2, embodiment 4, embodiment 6, implements
The performance of example 8 is more prominent.
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of preparation method of Biological asphalt, which comprises the steps of:
1) biomass is crushed；
It 2) is bio oil by gained biomass pyrolytic；
3) by gained bio oil air-distillation, until gas phase temperature reaches 100 DEG C, in collecting biological oil > 100 DEG C of heavy constituent；
4) aromatic naphtha is mixed after the bio oil heavy constituent being collected into being heated to 120 DEG C~130 DEG C；
5) maintenance system temperature continues that polymer rubber substance is added thereto, and high speed shear obtains Biological asphalt；
In step 5), need slowly and equably to mix polymer rubber substance, at 120 DEG C~130 DEG C, with 1500~3000r/
Min 60~70min of high speed shear, obtains Biological asphalt.
2. preparation method according to claim 1, which is characterized in that in step 1), the biomass is selected from pine sawdust
And/or willow sawdust；And the biomass is first crushed to 20 mesh~60 mesh, it is spare.
3. preparation method according to claim 1, which is characterized in that in step 2), the pyrolytic process temperature be 400~
700℃；The residence time is 2~5s in the pyrolytic process.
4. preparation method according to claim 3, which is characterized in that in step 2), the pyrolytic process temperature be 500~
550℃；The residence time is 4~5s in the pyrolytic process.
5. preparation method according to claim 1, which is characterized in that in step 4), the mixed ratio of the aromatic naphtha is
The 1~5% of heavy constituent quality.
6. preparation method according to claim 5, which is characterized in that in step 4), the mixed ratio of the aromatic naphtha is
The 1~2% of heavy constituent quality.
7. preparation method according to claim 1, which is characterized in that in step 5), the polymer rubber substance is
Average grain diameter is the butadiene-styrene rubber and/or shoddy of 80~100 mesh.
8. preparation method according to claim 7, which is characterized in that in step 5), the polymer rubber substance is mixed
Enter ratio and attaches most importance to the 10%~20% of constituent mass.
9. preparation method according to claim 1, which comprises the steps of:
1) biomass powder is broken to 20 mesh~60 mesh, it is spare；
It 2) is bio oil by gained biomass pyrolytic；
The pyrolytic process temperature parameter is 400~700 DEG C；The residence time is 2s~5s in the pyrolytic process；
3) by gained bio oil air-distillation, until gas phase temperature reaches 100 DEG C, in collecting biological oil > 100 DEG C of heavy constituent；
4) the bio oil heavy constituent being collected into is heated to 120 DEG C~130 DEG C, mixes aromatic naphtha；The additive ratio of the aromatic naphtha
Example attaches most importance to the 1~5% of constituent mass；
5) maintenance system temperature needs slowly and equably to mix polymer rubber substance, at 120 DEG C~130 DEG C, with 1500~
3000r/min 60~70min of high speed shear, obtains Biological asphalt；
The polymer rubber substance is the butadiene-styrene rubber and/or shoddy of 80~100 mesh of average grain diameter, and mixed ratio is
The 10%~20% of heavy constituent quality.
10. Biological asphalt made from any the method for claim 1-9.
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| CN201610390836.6A CN107434917B (en) | 2016-06-03 | 2016-06-03 | A kind of Biological asphalt and preparation method thereof |
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| CN110256858B (en) * | 2019-06-12 | 2021-08-03 | 台州立拓能源有限公司 | Application of biomass oil as asphalt |
| CN111635637A (en) * | 2020-05-27 | 2020-09-08 | 哈尔滨工业大学 | Chemical synthesis method of biological asphalt for roads |
| CN115181429B (en) * | 2022-06-16 | 2023-11-14 | 山西省交通科技研发有限公司 | Biological oil modified rubber asphalt and phase separation evaluation method thereof |
| CN115772333B (en) * | 2022-12-07 | 2023-12-22 | 东南大学 | Method for preparing biological regenerant based on microwave thermal cracking technology, biological regenerant and application |
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| CN102796547B (en) * | 2012-08-13 | 2014-07-16 | 交通运输部公路科学研究所 | Biological asphalt, biological asphalt composition and preparation method |
| CN102766340A (en) * | 2012-08-13 | 2012-11-07 | 交通运输部公路科学研究所 | Modified biological asphalt material, biological asphalt mixture, preparation method thereof and applications |
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