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Warm mixed colorized synthetic asphalt, mixture containing warm mixed colorized synthetic asphalt and their preparation methods

A technology of asphalt mixture and colored asphalt, which is applied in petroleum wax refining, climate change adaptation, petroleum wax recovery, etc., and can solve problems affecting the color and service life of colored asphalt, thermal aging of colored asphalt, high-temperature cracking, etc.

Inactive Publication Date: 2017-12-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, if the temperature exceeds 160°C, it will easily cause thermal aging of colored asphalt, or even high temperature cracking, which will affect the color and service life of colored asphalt. Operating at high temperature for a long time will aggravate this phenomenon.
So there are certain disadvantages

Method used

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  • Warm mixed colorized synthetic asphalt, mixture containing warm mixed colorized synthetic asphalt and their preparation methods
  • Warm mixed colorized synthetic asphalt, mixture containing warm mixed colorized synthetic asphalt and their preparation methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] (A) Preparation of warm mix agent

[0076] Including (1) hydroconversion and (2) sweating.

[0077] (1) Hydroconversion

[0078] Using the wax oil product (n-paraffin content: 95.5wt%; drop melting point: 86.2°C; penetration (25°C) 55 dmm) from the low-temperature F-T synthesis experimental device of China Petroleum & Chemical Corporation as raw material, the FHJ-2 catalyst ( A Ni / Al 2 o 3 Commercial catalyst, developed and produced by Fushun Petrochemical Research Institute, with an active metal content of 40% in terms of oxides, and the catalyst is subjected to conventional reduction treatment before use), under the action of reaction pressure 6.5MPa, reaction temperature 220°C, volume space velocity 1.0h -1 Hydrogenation is carried out under the condition of 500:1 volume ratio of hydrogen to liquid to convert olefins and oxygenates therein.

[0079] Properties of hydrogenation products: n-paraffin weight content 97.36%; drop melting point 85.0°C; penetration (25...

Embodiment 2

[0104] (A) Preparation of warm mix agent

[0105] This embodiment includes: (1) hydroconversion and (2) sweating.

[0106] (1) Hydroconversion

[0107] Using the wax oil product (n-paraffin content: 90.0wt%; drop melting point: 82.6°C; penetration (25°C) 62 dmm) from the low-temperature F-T synthesis experimental device of China Petroleum & Chemical Corporation as raw material, the catalyst (Mo-Ni / Al 2 o 3 , the active metal content is 20% in terms of oxides), under the action of reaction pressure 3.0MPa, reaction temperature 300℃, volume space velocity 2.0h -1 Hydrogenation is carried out under the condition of 100:1 volume ratio of hydrogen to liquid to convert olefins and oxygenates therein.

[0108] Properties of hydrogenation products: n-paraffin weight content 93.3%; drop melting point 80.6°C; penetration (25°C) 65 dmm; chromatography-mass spectrometry analysis, no alcohol, alkene, acid and other substances were detected.

[0109] It can be seen that the oxygenate...

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Abstract

The invention discloses warm mixed colorized synthetic asphalt. The asphalt comprises a warm mixing agent, synthetic asphalt and a colorant. The warm mixing agent is prepared by carrying out hydro-conversion on an F-T synthesis product as a raw material under action of a catalyst and carrying out sweating on the hydrogenation product. Airflows pass through a material layer and carry away a liquid component in the sweating process so that separation effects of a solid component and the liquid component are improved and a separation rate is accelerated. Gas produced by inorganic salt decomposition forms micro-spaces in the material layer so that the liquid component fast outflows. The warm mixed colorized synthetic asphalt has a low use temperature, high thermal stability and high heat aging resistance, provides a bright color for the colorized asphalt pavement and prolongs a service life of the colorized asphalt pavement.

Description

technical field [0001] The invention relates to warm-mix asphalt, in particular to warm-mix color synthetic asphalt, a mixture containing it and a preparation method thereof, belonging to the field of petroleum industry and basic material chemistry. Background technique [0002] With the continuous improvement of people's quality of life, road surfaces, especially parks and sidewalks, are required to be colored, and colored asphalt pavement is used instead of black asphalt pavement to beautify the environment. However, due to the high temperature during the production and construction of colored asphalt mixtures in the past, it is easy to cause the following adverse phenomena: one is to pollute the air and affect the living environment of residents during construction; the other is to waste energy; the third is to affect the color of colored asphalt pavement; four. It is easy to cause thermal aging or high temperature cracking of colored asphalt, causing performance deterior...

Claims

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Application Information

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IPC IPC(8): C08L91/00C08L83/04C08L63/00C08L53/02C08L91/06C10G73/36C10G73/42C04B26/26
CPCC04B26/26C08L91/00C08L2205/035C10G73/36C10G73/42C08L83/04C08L53/02C08L91/06C08L63/00C08L53/025C04B18/12C04B14/28C04B14/14C04B14/048Y02A30/30
Inventor 陈杰孙剑锋陈保莲张志银徐青柏范思远张静宁爱民李志军程国香
Owner CHINA PETROLEUM & CHEM CORP
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