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High-viscosity asphalt material for purifying automobile tail gas, and preparation method thereof

A technology for asphalt materials and automobile exhaust, which is applied in building insulation materials, building components, buildings, etc., can solve problems such as only functioning under sunlight, negative effects on growth, and the stability and long-term storage performance of asphalt materials need to be investigated. , to achieve significant purification and conversion effect, improve adsorption, improve conversion efficiency and effect of action time

Active Publication Date: 2020-03-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many types of polymers to be added, and the properties of each polymer vary greatly. The stability and long-term storage performance of asphalt materials need to be investigated.
[0009] To sum up, although the common asphalt materials for purifying automobile exhaust pollutants in the prior art can decompose the automobile exhaust pollutants on the road to a certain extent, they have problems such as poor adsorption of exhaust gas and can only function under sunlight.
At the same time, the high-viscosity asphalt pavement has a large void ratio, and the exhaust gas on the road surface is likely to remain in the voids and increase the negative impact on people and vegetation near the ground surface. The high-viscosity asphalt in the prior art has many types of polymers, and basically Does not take into account the negative impact of vehicle exhaust on its road performance
At present, no literature has been found on high-viscosity asphalt materials with the function of purifying automobile exhaust

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Add 3g Yb 2 o 3 The carrier was dispersed in 150 mL deionized water, stirred at 200 rpm until uniformly dispersed; 0.5 g Ni(NO 3 ) 2 In the solution, keep stirring at 200 rpm for 1.5 h; add 0.1 mol / L K 2 CO 3 Adjust the pH of the solution to 8, and keep stirring at 400 rpm for 3 h; filter it with suction, dry it at 90°C to obtain a solid substance, put it into a muffle furnace at 300°C and roast it for 3h to obtain asphalt modifier A1.

[0051] (2) 100 parts by weight of asphalt, wherein the penetration of the asphalt (25°C, 100g, 5s, 1 / 10mm) is 71; 7 parts by weight of styrene-butadiene block copolymer, 0.3 parts by weight of stable agent, 6 parts by weight of furfural refined extract oil, wherein the weight content of aromatic hydrocarbons is 60%, shear and stir at 160°C for 20 min, and the rotating speed is 2000rpm; after the shearing is completed, heat up to 180°C, and slowly add 5 parts by weight 2000m 2 / g of activated carbon, and 4 parts by weight of th...

Embodiment 2

[0053] (1) Add 3 g La 2 o 3 The carrier was dispersed in 250 mL deionized water, stirred at 300 rpm until uniformly dispersed; 4.8 g Co(NO 3 ) 2 In the solution, keep stirring at 300 rpm for 2 h; use a separatory funnel to add 0.1 mol / L KOH solution dropwise, adjust the pH to 9, and continue stirring at 500 rpm for 3 h; filter with suction and dry at 90 °C The obtained solid matter was put into a muffle furnace for 3 hours of roasting at 400° C. to obtain asphalt modifier A2.

[0054] (2) 100 parts by weight of asphalt, wherein the penetration of the asphalt (25°C, 100g, 5s, 1 / 10mm) is 61; 11 parts by weight of styrene-butadiene block copolymer, 0.6 parts by weight of stable agent, 14 parts by weight of furfural refined extract oil, wherein the weight content of aromatic hydrocarbons is 55%, shear and stir at 170 °C for 30 min, and the speed is 3000 rpm; after shearing, heat up to 190 °C, slowly add 8 weight Part 1500 m 2 / g of mesoporous carbon, and 5 parts by weight of ...

Embodiment 3

[0056] (1) 3g CeO 2 The carrier was dispersed in 300 mL of deionized water, stirred at 400 rpm until uniformly dispersed; 3.59 g of Mn(CH 3 COO) 2 In the solution, keep stirring at 400 rpm for 3 h; use a separatory funnel to add 0.1 mol / L Na 2 CO 3 Adjust the pH of the solution to 10, and keep stirring at 500 rpm for 5 h; filter it with suction, dry it at 90°C to obtain a solid substance, put it into a muffle furnace at 400°C and roast it for 5h to obtain asphalt modifier A3.

[0057] (2) 100 parts by weight of asphalt, wherein the penetration of the asphalt (25°C, 100g, 5s, 1 / 10mm) is 90; 9 parts by weight of styrene-butadiene block copolymer, 0.5 parts by weight of stable agent, 10 parts by weight of furfural refined extraction oil, wherein the weight content of aromatic hydrocarbons is 70%, shear and stir at 165°C for 30 minutes, and the speed is 2000 rpm; after the shearing is completed, heat up to 185°C, and slowly add 11 parts by weight 2500m 2 / g of activated carbo...

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Abstract

The invention discloses a high-viscosity asphalt material for purifying automobile tail gas, and a preparation method thereof. The high-viscosity asphalt material comprises the following raw materialcomponents in parts by weight: 100 parts of matrix asphalt, 5-15 parts of a styrene-butadiene block copolymer, 1-20 parts of aromatic-rich oil, 0.1-1 part of a stabilizing agent, 1-20 parts of a porous carbon material, and 1-20 parts of an asphalt modifier, wherein the asphalt modifier uses a lanthanum-based metal oxide as a carrier and uses a transition metal oxide as a catalytic active component, and the use amount of the transition metal oxide is 5-100% of the mass of the lanthanum-based metal oxide. The high-viscosity asphalt material disclosed by the invention can efficiently and permanently purify nitrogen oxides and other main pollutants in automobile tail gas within a pavement temperature range in the presence or absence of sunlight while effectively reduces urban road surface noise pollution, enhances road surface friction force and inhibits water film generation, and can be widely applied to construction of modern asphalt road surfaces and sponge cities.

Description

technical field [0001] The invention relates to a high-viscosity asphalt material and a preparation method thereof, in particular to a high-viscosity asphalt material for purifying automobile tail gas and a preparation method thereof. Background technique [0002] With the development of the automobile industry and the increase in the number of automobiles, the hazards of automobile exhaust are becoming more and more serious, which has caused certain damage to the ecological environment balance and human health, and is one of the sources of environmental pollution. The pollutants contained in automobile exhaust mainly include CO produced by incomplete combustion of fuel, hydrocarbons that can cause photochemical smog, nitrogen oxides that are extremely harmful to humans, and SO 2 and tiny particles (composed of soot, lead oxides and other heavy metal oxides), etc. In addition, studies in recent years have shown that motor vehicle exhaust emissions also cause NH in urban are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L91/00C08K13/06C08K9/12C08K3/22C08K7/24
CPCC08L95/00C08L2205/03C08K2201/006C08K2003/2293C08K2003/2289C08K2003/2262C08L53/02C08L91/00C08K13/06C08K9/12C08K3/22C08K7/24
Inventor 郭小圣郭皎河傅丽宁爱民李志军
Owner CHINA PETROLEUM & CHEM CORP
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