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Road asphalt modifier containing direct coal liquefaction residue, modified road asphalt, and preparation methods of road asphalt modifier and modified road asphalt

A technology for direct coal liquefaction and road asphalt, which is used in building components, building insulation materials, buildings, etc., can solve the problems of high softening point and low temperature brittleness of direct coal liquefaction residues, avoid aging, improve dispersion effect, and reduce costs. Effect

Active Publication Date: 2015-04-15
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems faced in the above-mentioned prior art, improve the problems such as high softening point of coal direct liquefaction residue, high low-temperature brittleness, etc., and provide a kind of low-cost, relatively abundant resources and the effect of modifying road asphalt to reach or Road Asphalt Modifier Products Exceeding TLA Lake Asphalt Standards

Method used

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  • Road asphalt modifier containing direct coal liquefaction residue, modified road asphalt, and preparation methods of road asphalt modifier and modified road asphalt
  • Road asphalt modifier containing direct coal liquefaction residue, modified road asphalt, and preparation methods of road asphalt modifier and modified road asphalt

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preparation example Construction

[0029] Although the road asphalt modifier obtained by mixing the above components evenly can have better performance than the prior art, preferably, according to the second aspect of the present invention, the preparation of the road asphalt modifier provided by the present invention The method includes the following steps:

[0030] (1) Stir the petroleum heavy oil and the polymer at 30-200°C;

[0031] (2) Add coal to directly liquefy the residue, raise the temperature to 150-250°C, stir evenly and cool to obtain road asphalt modifier.

[0032] With respect to 100 parts by weight of the coal direct liquefaction residue, the content of petroleum heavy oil is 10-150 parts by weight, and the content of the polymer is 10-70 parts by weight. Preferably, relative to 100 parts by weight of coal direct liquefaction residue, the content of petroleum heavy oil is 12-120 parts by weight, and the content of polymer is 11-60 parts by weight; more preferably, relative to 100 parts by weigh...

Embodiment 1

[0055] This embodiment is used to illustrate the road asphalt modifier and modified road asphalt provided by the present invention and the preparation method thereof.

[0056] The raw material ratio and method for preparing 1000g road modified asphalt are as follows:

[0057] 90g catalytic cracking oil slurry (produced by Yanshan Petrochemical, ρ 20℃ =0.985g / ml, the fraction greater than 350°C is 76% by weight, the freezing point is 10.2°C, and the kinematic viscosity at 100°C is 14.78mm 2 ·s -1 ) and 20g of SBR (SBR1712 produced by Fujian Petrochemical) were stirred and mixed for 2 hours at 60°C and 50rpm to obtain the first mixture. The mixture was cooled to obtain 200 g of the road asphalt modifier.

[0058] The above-mentioned road asphalt modifier was crushed into particles with a diameter of less than 5 mm, added to 800 g of 90# base road asphalt, and stirred and mixed at 150° C. at a speed of 500 rpm for 45 minutes to obtain modified road asphalt. The properties of ...

Embodiment 2

[0060] This embodiment is used to illustrate the road asphalt modifier and modified road asphalt provided by the present invention and the preparation method thereof.

[0061] The raw material ratio and method for preparing 1000g road modified asphalt are as follows:

[0062] 10g catalytic cracking oil slurry (produced by Yanshan Petrochemical, ρ 20℃ =0.985g / ml, the fraction greater than 350°C is 76% by weight, the freezing point is 10.2°C, and the kinematic viscosity at 100°C is 14.78mm 2 ·s -1 ) and 20g of SBR (SBR1712 produced by Fujian Petrochemical) were stirred and mixed for 3 hours at 50°C and 800rpm to obtain the first mixture. The mixture was cooled to obtain 100 g of the road asphalt modifier.

[0063] The above-mentioned road asphalt modifier was crushed into particles with a diameter of less than 5 mm, added to 900 g of 90# base road asphalt, and stirred and mixed at 100° C. at a speed of 200 rpm for 30 minutes to obtain modified road asphalt. The properties of...

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Abstract

The present invention discloses a road asphalt modifier containing direct coal liquefaction residue, a modified road asphalt, and preparation methods of the road asphalt modifier and the modified road asphalt. According to the present invention, direct coal liquefaction residue, a petroleum heavy oil component and a polymer are completely mixed at a temperature of higher than the residue softening point to prepare the road asphalt modifier, and the road asphalt modifier and a substrate petroleum asphalt are completely and uniformly mixed at a low temperature to obtain the modified road asphalt, wherein the road asphalt modifier has the low price, and the direct coal liquefaction residue can be effectively and economically utilized through the road asphalt modifier.

Description

technical field [0001] The invention relates to a road asphalt modifier containing coal direct liquefaction residue, a modified road asphalt prepared from the road asphalt modifier and a preparation method thereof. Background technique [0002] How to efficiently and rationally utilize coal direct liquefaction residue is the bottleneck restricting the development of current coal direct liquefaction technology. The development of economical and reasonable utilization technology of coal direct liquefaction residue can not only make full use of resources, avoid the waste of precious resources, but also reduce the impact on the environment. Moreover, it can effectively improve the economics of the direct coal liquefaction process and promote the development of direct coal liquefaction technology. [0003] As a natural road asphalt modifier, Trinidad Lake Asphalt (TLA) has some unique modification effects, and is used on the pavement of high-grade highways in many developed count...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L91/00C08L53/02C08L9/06C08L23/16C08L9/02C08L53/00C08L11/00C08K11/00
Inventor 张胜振宫晓颐赖世耀梁文斌盛英刘均庆郑冬芳
Owner CHNA ENERGY INVESTMENT CORP LTD
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