CN106317920A - Coal liquefaction residue compound asphalt and preparation method thereof - Google Patents
Coal liquefaction residue compound asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN106317920A CN106317920A CN201610703007.9A CN201610703007A CN106317920A CN 106317920 A CN106317920 A CN 106317920A CN 201610703007 A CN201610703007 A CN 201610703007A CN 106317920 A CN106317920 A CN 106317920A
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- Prior art keywords
- coal liquefaction
- liquefaction residue
- coal
- asphalt
- matrix pitch
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses coal liquefaction residue compound asphalt which contains coal liquefaction residues, matrix asphalt, a plasticizer and waste rubber powder. The preparation method comprises the following steps: grinding the coal liquefaction residues into powder for later use; heating the matrix asphalt, thereby obtaining fused matrix asphalt for later use; uniformly mixing the coal liquefaction residue powder, the waste rubber powder and the plasticizer, closing and standing for 30-40 minutes, thereby obtaining a mixture; and finally, adding the mixture into the fused matrix asphalt, stirring, uniformly mixing, closing and developing for 30-60 minutes, thereby obtaining the product. According to the invention, lots of the existing accumulated coal liquefaction residue wastes are taken as main raw materials and mixed with the matrix asphalt, the plasticizer and the waste rubber powder so as to prepare the compound asphalt with excellent performance and low cost, the compound asphalt can replace the matrix asphalt to serve as modified asphalt used for road pavement materials, and the problems that environmental pollution is caused by the coal liquefaction residue wastes and asphalt resources are in shortage are solved.
Description
Technical field
The present invention relates to coal liquefaction residue changing waste into resources and utilize field, be specifically related to a kind of coal liquefaction residue composite asphalt
And preparation method thereof.
Background technology
Currently, the energy of China is based on coal, and electric power, petroleum gas and regenerative resource are auxiliary.The energy of China
In the consumption structure of source, coal accounts for 68%, and oil accounts for 23.45%, and natural gas only accounts for 3%.Visible, the energy demand of China is predominantly
Coal resources.It is known that the rich coal resources of China, but the use of a large amount of coal resources causes serious environment dirt
Dye, has expedited the emergence of the technology of the coal clean utilizations such as coal liquefaction the most further.Coal liquefaction technology can produce oil product with feed coal,
Not only reduce the coal combustion pollution to environment, also responsive to the policy of environment sustainable development.Further investigation coal clean utilization
Technology is also converted to can apply in commercial production, has not only ensured the national economic development and energy security, Er Qiehuan
Solve the present situation of energy scarcity and environmental pollution.But, although coal liquefaction technology improves the utilization ratio of coal, but also produce simultaneously
Give birth to substantial amounts of liquefied residue.The recycling of coal liquefaction residue is to alleviate energy shortage and solve having of problem of environmental pollution
Effect approach.
Summary of the invention
For problems of the prior art, it is an object of the invention to provide a kind of with low cost, of good performance
Coal liquefaction residue composite asphalt and preparation method thereof, carries out material comprehensive utilization effectively utilizing the abundantest coal liquefaction residue
While, not only achieve the diversification of material, the most beneficially environmental conservation.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
(1) a kind of coal liquefaction residue composite asphalt, it is characterised in that comprise coal liquefaction residue, matrix pitch, plasticiser
And shoddy.
Preferably, described plasticiser is epoxy soybean oil, dioctyl phthalate or citroflex A-4.
Preferably, the quality of described coal liquefaction residue is the 10-30% of described matrix pitch quality.
Preferably, the quality of described plasticiser is the 6-9% of described matrix pitch quality.
Preferably, the quality of described shoddy is the 5-10% of described matrix pitch quality.
Preferably, the granularity of described shoddy is 40-60 mesh.
(2) preparation method of coal liquefaction residue composite asphalt, it is characterised in that comprise the following steps:
Step 1, clays into power coal liquefaction residue, obtains coal liquefaction residue powder, standby；
Step 2, mixs homogeneously described coal liquefaction residue powder, shoddy with plasticiser, and airtight placement 30-40min,
Obtain mixture；
Step 3, heated substrate Colophonium, obtain melted matrix pitch, standby；
Step 4, adds described mixture in described melted matrix pitch, stirring, mix homogeneously, and airtight growth 30-
60min, to obtain final product.
Preferably, in step 1, the granularity of described coal liquefaction residue powder is 20-60 mesh.
Preferably, in step 4, described stirring is carried out under conditions of temperature is 160-185 DEG C.
In the present invention, coal liquefaction residue refers to discharge a certain amount of the most anti-of liquefying plant in DCL/Direct coal liquefaction production process
Product in the middle of the solid materials such as the inorganic mineral carried secretly in the coal answered, coal and the catalyst adding coal slurry and some coal liquefactions
Thing, it is a kind of high-carbon, high ash and the material of high-sulfur, and yield commonly reaches about the 30% of feed coal.
Compared with prior art, the invention have the benefit that
The present invention, from twice laid, the angle of protection environment, with the most a large amount of coal liquefaction residue refuses accumulated is
Primary raw material, mixes it with plasticiser, shoddy and matrix pitch, makes the performances such as high-temperature behavior, cryogenic property, viscoelasticity
Composite asphalt excellent and with low cost, it is possible to replacement matrix pitch is as the modified pitch of road pavement materials'use, not only
The problem solving coal liquefaction residue garbage environmental pollution, the problem simultaneously solving Colophonium shortage of resources.
Detailed description of the invention
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but those skilled in the art will
It will be appreciated that the following example is merely to illustrate the present invention, and it is not construed as limiting the scope of the present invention.
The invention provides a kind of coal liquefaction residue composite asphalt, comprise coal liquefaction residue, matrix pitch, plasticiser, give up
Rubber powder.
In the present invention, coal liquefaction residue is selected from deifying coal liquefaction residue, and matrix pitch selects 90# matrix pitch, its pin
In-degree is 80-100, and softening point is not less than 42 DEG C, and 15 DEG C of ductilities are not less than 100cm.
Embodiment 1
The preparation of a kind of coal liquefaction residue composite asphalt, comprises the steps of
First coal liquefaction residue is worn into the powder that granularity is 40 mesh, 90# matrix pitch is added hot melt under the conditions of 160 DEG C
Melt, standby；Take again 90# matrix pitch quality 10% coal liquefaction residue powder and 90# matrix pitch quality 7% epoxy
Soybean oil mix homogeneously, and airtight placement 35min, obtain mixture, and by the 90# matrix pitch of mixture and molten state in temperature
Stir under the conditions of being 170 DEG C, uniformly mix, and airtight growth 30min, to obtain final product.
Prepared composite asphalt carries out needle penetration, softening point, the test of 15 DEG C of ductilities, and test result is shown in Table 1.
Embodiment 2
The preparation of a kind of coal liquefaction residue composite asphalt, comprises the steps of
First coal liquefaction residue is worn into the powder that granularity is 50 mesh, 90# matrix pitch is added heat fusing, standby；Take again
The coal liquefaction residue powder of 90# matrix pitch quality 30% and the epoxy soybean oil mix homogeneously of 90# matrix pitch quality 7%,
And airtight placement 40min, obtain mixture, and the 90# matrix pitch of mixture with molten state is stirred under the conditions of temperature is 170 DEG C
Mix, uniformly mix, and airtight growth 30min, to obtain final product.
Prepared composite asphalt carries out needle penetration, softening point, the test of 15 DEG C of ductilities, and test result is shown in Table 1.
Embodiment 3
The preparation of a kind of coal liquefaction residue composite asphalt, comprises the steps of
First coal liquefaction residue is worn into the powder that granularity is 40 mesh, 90# matrix pitch is added heat fusing, standby；Take again
The coal liquefaction residue powder of 90# matrix pitch quality 20% and the epoxy soybean oil mix homogeneously of 90# matrix pitch quality 7%,
And airtight placement 40min, obtain mixture, and the 90# matrix pitch of mixture with molten state is stirred under the conditions of temperature is 170 DEG C
Mix, uniformly mix, and airtight growth 30min, to obtain final product.
Prepared composite asphalt carries out needle penetration, softening point, the test of 15 DEG C of ductilities, and test result is shown in Table 1.
Embodiment 4
The preparation of a kind of coal liquefaction residue composite asphalt, comprises the steps of
First coal liquefaction residue is worn into the powder that granularity is 30 mesh, 90# matrix pitch is added heat fusing, standby；Take again
The coal liquefaction residue powder of 90# matrix pitch quality 20% and the dioctyl phthalate mixing of 90# matrix pitch quality 7%
Uniformly, and airtight placement 30min, obtain mixture, and be 170 DEG C of bars by the 90# matrix pitch of mixture and molten state in temperature
Stir under part, uniformly mix, and airtight growth 30min, to obtain final product.
Prepared composite asphalt carries out needle penetration, softening point, the test of 15 DEG C of ductilities, and test result is shown in Table 1.
Embodiment 5
The preparation of a kind of coal liquefaction residue composite asphalt, comprises the steps of
First coal liquefaction residue is worn into the powder that granularity is 30 mesh, 90# matrix pitch is added heat fusing, standby；Take again
The coal liquefaction residue powder of 90# matrix pitch quality 20% and the citroflex A-4 of 90# matrix pitch quality 7% mix
Close uniformly, and airtight placements 30min, obtain mixture, and be 170 DEG C by the 90# matrix pitch of mixture and molten state in temperature
Under the conditions of stir, uniformly mix, and airtight growth 40min, to obtain final product.
Prepared composite asphalt carries out needle penetration, softening point, the test of 15 DEG C of ductilities, and test result is shown in Table 1.
Embodiment 6
The preparation of a kind of coal liquefaction residue composite asphalt, comprises the steps of
First coal liquefaction residue is worn into the powder that granularity is 50 mesh, 90# matrix pitch is added heat fusing, standby；Take again
The coal liquefaction residue powder of 90# matrix pitch quality 20% and the epoxy soybean oil mix homogeneously of 90# matrix pitch quality 6%,
And airtight placement 40min, obtain mixture, and the 90# matrix pitch of mixture with molten state is stirred under the conditions of temperature is 170 DEG C
Mix, uniformly mix, and airtight growth 40min, to obtain final product.
Prepared composite asphalt carries out needle penetration, softening point, the test of 15 DEG C of ductilities, and test result is shown in Table 1.
Embodiment 7
The preparation of a kind of coal liquefaction residue composite asphalt, comprises the steps of
First coal liquefaction residue is worn into the powder that granularity is 60 mesh, 90# matrix pitch is added heat fusing, standby；Take again
The coal liquefaction residue powder of 90# matrix pitch quality 20% and the epoxy soybean oil mix homogeneously of 90# matrix pitch quality 8%,
And airtight placement 30min, obtain mixture, and the 90# matrix pitch of mixture with molten state is stirred under the conditions of temperature is 170 DEG C
Mix, uniformly mix, and airtight growth 60min, to obtain final product.
Prepared composite asphalt carries out needle penetration, softening point, the test of 15 DEG C of ductilities, and test result is shown in Table 1.
Embodiment 8
The preparation of a kind of coal liquefaction residue composite asphalt, comprises the steps of
First coal liquefaction residue is worn into the powder that granularity is 40 mesh, 90# matrix pitch is added heat fusing, standby；Take again
The coal liquefaction residue powder of 90# matrix pitch quality 20% stirs under the conditions of temperature is 170 DEG C with the 90# matrix pitch of molten state
Mix, uniformly mix, and airtight growth 40min, to obtain final product.
Prepared composite asphalt carries out needle penetration, softening point, the test of 15 DEG C of ductilities, and test result is shown in Table 1.
Embodiment 9
The preparation of a kind of coal liquefaction residue composite asphalt, comprises the steps of
First coal liquefaction residue is worn into the powder that granularity is 40 mesh, 90# matrix pitch is added heat fusing, standby；Take again
The coal liquefaction residue powder of 90# matrix pitch quality 20%, the shoddy of matrix pitch quality 6% and 90# matrix pitch quality
The epoxy soybean oil mix homogeneously of 7%, and airtight placement 30min, obtain mixture, and by the 90# substrate of mixture Yu molten state
Colophonium stirs under the conditions of temperature is 170 DEG C, uniformly mixes, and airtight growth 30min, to obtain final product.
Prepared composite asphalt carries out needle penetration, softening point, the test of 15 DEG C of ductilities, and test result is shown in Table 1.
The needle penetration of the composite asphalt of table 1 embodiment 1-9 and softening point
As shown in Table 1, epoxy soybean oil, dioctyl phthalate and citroflex A-4 respectively with coal liquefaction
Residue, 90# matrix pitch mix, and the needle penetration of the composite asphalt obtained after mixing is compared with being not spiked with plasticiser (embodiment 8)
All having raising in various degree, wherein embodiment 1,3,5,7,9 needle penetration is all between 80-100, i.e. meets 90# road oil
Penetration of bitumens technology requirement.
As shown in Table 1, epoxy soybean oil, dioctyl phthalate and citroflex A-4 respectively with coal liquefaction
Residue, 90# matrix pitch mix, in addition to the embodiment 1 that coal liquefaction residue addition content is less, and the composite asphalt obtained after mixing,
Softening point is all not less than 42 DEG C, meets the softening point technology requirement of 90# bi tumenf orr oad.And be not spiked with the compound of plasticiser
Colophonium is compared, and softening point has declined.
As shown in Table 1, epoxy soybean oil, dioctyl phthalate and citroflex A-4 respectively with coal liquefaction
Residue, 90# matrix pitch mix, and 15 DEG C of ductilities of the composite asphalt obtained after mixing are all substantially improved, but relative to not mixing
For adding the asphalt sample of rubber powder, 15 DEG C of ductilities still with in " standard specification for construction and acceptance of highway asphalt pavement " (JTG F40-2004)
A, B level bitumen ductility be not less than 100, C level bitumen ductility is not less than 50 a bigger gap, but after admixture shoddy, ductility has
Bigger improvement, fully meets the technology requirement of C level Colophonium.
As can be seen here, coal liquefaction residue can improve high-temperature behavior and the viscoelastic property of Colophonium, plasticiser and rubber powder
Mainly improve the ductility of composite asphalt, and produce synergism and improve the cryogenic property of composite asphalt.The present invention can realize
The waste resource such as coal liquefaction residue, shoddy material utilization in road engineering, not only reduces Colophonium cost, and drops
The low environmental pollution of waste resource, has good economy, society and environmental benefit.
Although, in this specification, the present invention is described in detail the most with a general description of the specific embodiments,
But on the basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.
Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed model
Enclose.
Claims (10)
1. a coal liquefaction residue composite asphalt, it is characterised in that comprise coal liquefaction residue, matrix pitch, plasticiser and scrap rubber
Powder.
Coal liquefaction residue composite asphalt the most according to claim 1, it is characterised in that described coal liquefaction residue is that coal is direct
Discharging the solid material of liquefying plant and the intermediate product of coal liquefaction in liquefaction production process, described solid material comprises unreacted
Coal, the inorganic mineral carried secretly in coal and add the catalyst of coal slurry.
Coal liquefaction residue composite asphalt the most according to claim 1, it is characterised in that described plasticiser includes epoxy soybean
Oil, dioctyl phthalate or citroflex A-4.
Coal liquefaction residue composite asphalt the most according to claim 1, it is characterised in that the quality of described coal liquefaction residue is
The 10-30% of described matrix pitch quality.
Coal liquefaction residue composite asphalt the most according to claim 1, it is characterised in that the quality of described plasticiser is described
The 6-9% of matrix pitch quality.
Coal liquefaction residue composite asphalt the most according to claim 1, it is characterised in that the quality of described shoddy is described
The 5-10% of matrix pitch quality.
Coal liquefaction residue composite asphalt the most according to claim 1, it is characterised in that the granularity of described shoddy is 40-
60 mesh.
8. the preparation method of a coal liquefaction residue composite asphalt, it is characterised in that comprise the following steps:
Step 1, clays into power coal liquefaction residue, obtains coal liquefaction residue powder, standby；
Step 2, mixs homogeneously described coal liquefaction residue powder, shoddy with plasticiser, and airtight placement 30-40min, obtains mixed
Compound；
Step 3, heated substrate Colophonium, obtain melted matrix pitch, standby；
Step 4, adds described mixture in described melted matrix pitch, stirring, mix homogeneously, and airtight growth 30-
60min, to obtain final product.
The preparation method of coal liquefaction residue composite asphalt the most according to claim 8, it is characterised in that in step 1, described
The granularity of coal liquefaction residue powder is 20-60 mesh.
The preparation method of coal liquefaction residue composite asphalt the most according to claim 8, it is characterised in that in step 4, institute
State stirring to carry out under conditions of temperature is 160-185 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610703007.9A CN106317920A (en) | 2016-08-22 | 2016-08-22 | Coal liquefaction residue compound asphalt and preparation method thereof |
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| CN201610703007.9A CN106317920A (en) | 2016-08-22 | 2016-08-22 | Coal liquefaction residue compound asphalt and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108795071A (en) * | 2018-06-08 | 2018-11-13 | 太原理工大学 | A kind of sulfenyl cementitious matter and its application method substituting part pitch |
| CN109593371A (en) * | 2017-09-30 | 2019-04-09 | 神华集团有限责任公司 | Road asphalt modifier and modified pavement asphalt and preparation method thereof and asphalt |
| CN110804416A (en) * | 2019-12-02 | 2020-02-18 | 新乡市通达公路新科技有限公司 | Road crack pouring adhesive and preparation method thereof |
| CN113480861A (en) * | 2021-07-06 | 2021-10-08 | 太原理工大学 | Coal liquefaction residue modified asphalt based on particle size grading and preparation method thereof |
| CN114479491A (en) * | 2021-12-14 | 2022-05-13 | 中路高科(北京)公路技术有限公司 | High-modulus asphalt containing coal liquefied asphalt and preparation method and application thereof |
| CN116120758A (en) * | 2023-03-02 | 2023-05-16 | 中路高科交通检测检验认证有限公司 | Composite modified asphalt and preparation method and application thereof |
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| CN104788971A (en) * | 2015-04-01 | 2015-07-22 | 北京建筑大学 | Method for improving low-temperature property of asphalt modified by direct coal liquefaction residues |
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| CN101161778A (en) * | 2007-11-26 | 2008-04-16 | 神华集团有限责任公司 | Method for preparing modified asphalt |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109593371A (en) * | 2017-09-30 | 2019-04-09 | 神华集团有限责任公司 | Road asphalt modifier and modified pavement asphalt and preparation method thereof and asphalt |
| CN109593371B (en) * | 2017-09-30 | 2021-07-09 | 神华集团有限责任公司 | Road asphalt modifier, modified road asphalt, preparation method of modified road asphalt and asphalt mixture |
| CN108795071A (en) * | 2018-06-08 | 2018-11-13 | 太原理工大学 | A kind of sulfenyl cementitious matter and its application method substituting part pitch |
| CN108795071B (en) * | 2018-06-08 | 2020-12-22 | 太原理工大学 | Sulfur-based cementing material for replacing partial asphalt and using method thereof |
| CN110804416A (en) * | 2019-12-02 | 2020-02-18 | 新乡市通达公路新科技有限公司 | Road crack pouring adhesive and preparation method thereof |
| CN113480861A (en) * | 2021-07-06 | 2021-10-08 | 太原理工大学 | Coal liquefaction residue modified asphalt based on particle size grading and preparation method thereof |
| CN114479491A (en) * | 2021-12-14 | 2022-05-13 | 中路高科(北京)公路技术有限公司 | High-modulus asphalt containing coal liquefied asphalt and preparation method and application thereof |
| CN116120758A (en) * | 2023-03-02 | 2023-05-16 | 中路高科交通检测检验认证有限公司 | Composite modified asphalt and preparation method and application thereof |
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