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A kind of modified asphalt and preparation method thereof

A technology of modified asphalt and chemical modifier, which is applied in the direction of chemical processing of tar asphalt/petroleum asphalt/natural asphalt, building components, building insulation materials, etc., which can solve the problems of complex production process and achieve stable heat storage The effects of improved properties, increased hardness, and simplified production process

Active Publication Date: 2020-06-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention provides a modified asphalt and its preparation method, which can directly use the catalytic oil slurry as the raw material for asphalt production without pre-treatment, thereby greatly simplifying the production process and reducing the production cost. It avoids the problem that the catalytic oil slurry needs to be pre-treated to produce qualified road asphalt, which makes the overall production process complicated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Add styrene-butadiene rubber (SBR) to 170°C catalytic oil slurry (Changling Petrochemical catalytic cracking oil slurry), high-speed shear (3000r / min) for 0.5 hours;

[0034] (2) Add vacuum residue (penetration of 75 1 / 10mm at 25°C), methanesulfonic acid solution with a concentration of 7.5wt% phosphorus pentoxide and dicumyl peroxide, at 150°C, at a low speed Stir (500r / min) for 1.0 hour to obtain modified asphalt. The composition of raw materials and products is shown in Table 1-3, and the ratio of raw materials and product properties are shown in Table 4.

Embodiment 2

[0036] (1) Add styrene-butadiene-styrene triblock copolymer (SBS, YH-791) to 160°C catalytic oil slurry (Changling Petrochemical catalytic cracking oil slurry), high-speed shear (3000r / min ) 0.6 hours;

[0037] (2) Add vacuum residue (penetration of 68 1 / 10mm at 25°C), methanesulfonic acid solution with a concentration of 9.5wt% phosphorus pentoxide and dipropylbenzene peroxide, and stir at a low speed at 140°C (500r / min) for 1.0 hour to obtain modified asphalt. The composition of raw materials and products is shown in Table 1-3, and the ratio of raw materials and product properties are shown in Table 4.

Embodiment 3

[0039] (1) Add styrene-butadiene-styrene triblock copolymer (SBS, YH-791) to 165°C catalytic oil slurry (Changling Petrochemical catalytic cracking oil slurry), high-speed shear (3000r / min ) 0.6 hours;

[0040] (2) Add vacuum residue (penetration of 72 1 / 10mm at 25°C), methanesulfonic acid solution with a concentration of 11wt% phosphorus pentoxide and hydrogen peroxide, and stir at a low speed (500r / min) for 1.0 hour to obtain modified asphalt. The composition of raw materials and products is shown in Table 1-3, and the ratio of raw materials and product properties are shown in Table 4.

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Abstract

The invention discloses modified asphalt and a preparation method thereof. The modified asphalt disclosed by the invention is prepared from the following raw material components in parts by weight: 100 parts of catalytic slurry oil, 60 to 100 parts of residual oil, 3 to 10 parts of a delay agent, 0.1 to 1 part of an oxidant and 3 to 10 parts of a chemical modifier, wherein the chemical modifier isa methanesulfonic acid solution of phosphorus pentoxide. According to the modified asphalt and the preparation method thereof, the catalytic slurry oil can be directly used as a production raw material of asphalt, and procedures such as atmosphere-vacuum distillation or solvent deasphalting and the like do not need to be carried out on the catalytic slurry oil; after the catalytic slurry oil is blended and modified, the modified asphalt for roads is manufactured; therefore, the production process is greatly simplified, and the production cost is reduced.

Description

technical field [0001] The invention relates to a modified asphalt and a preparation method thereof, in particular to a modified asphalt for roads and a preparation method thereof. Background technique [0002] Catalytic cracking (FCC) is one of the most important and effective processes for lightening heavy oil. The weight of oil makes the accumulation of condensed ring aromatics and colloids in FCC oil slurry (hereinafter referred to as "oil slurry") more and more The more it is, if it is recycled to refining, there will be hidden dangers of coke formation and catalyst pollution. Oil refineries generally take measures to reduce the refining ratio of oil slurry and dump part of the oil slurry. Most of the dumped oil slurry is treated as cheap heavy fuel oil, which causes a great waste of resources, and there is also a potential safety hazard due to the coking of the furnace nozzle during the combustion process. Therefore, it is of great significance to make reasonable and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L91/00C08L9/06C08L53/02C08K3/32C08K5/42C08K5/14C08K3/18C10C3/04
CPCC08L91/00C08L95/00C08L2201/08C08L2205/025C08L2205/035C10C3/04C08L9/06C08K3/32C08K5/42C08K5/14C08L53/02C08K3/18
Inventor 宣根海徐青柏宁爱民陈杰
Owner CHINA PETROLEUM & CHEM CORP
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