Method for preparing road asphalt through catalytic slurry oil

A technology of catalytic oil slurry and road asphalt, which is applied in the direction of building components, building insulation materials, polymerization reaction treatment, etc., can solve the problem that light component resources are not well utilized, and achieve improved temperature sensing performance and thermal aging resistance Performance, improved liquid product yield, effect of increased heavy component content

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method carries out cross-linking and condensation reaction on the whole di...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Using a vacuum distillation device, the whole distillate catalytic oil slurry is subjected to vacuum distillation, the cutting temperature is 440°C, and the heavy distillate oil is used as the topping oil slurry. The yield of light distillate oil at <440°C is shown in Table 2, and the properties of heavy distillate oil (topped slurry) are shown in Table 3.

[0030] Step 1. First add 100 parts of topping oil slurry and 2 parts of tetramethylthiuram disulfide into a reaction kettle at 200°C, and stir to mix evenly, and react for 60 minutes; Step 2: After cooling to 130°C, Add 1 part of polyphosphoric acid and mix for 60 minutes; Step 3: Mix the obtained reaction product with the vacuum residue with a penetration of 97 1 / 10mm at 25°C at a ratio of 100:35 at 130°C to obtain a road Bituminous products.

Embodiment 2

[0036] Using a vacuum distillation device, the whole distillate catalytic oil slurry was subjected to vacuum distillation, the cutting temperature was 446°C, and the heavy distillate oil was used as the topping oil slurry.

[0037] Step 1. Add 100 parts of topping oil slurry, 6 parts of alkylphenol disulfide, 1 part of pyrophosphoric acid and 0.3 part of polyphosphoric acid into the reaction kettle, stir to mix evenly, the reaction temperature is 190 ° C, and the reaction time is 90 minutes; Step 2. Mix the obtained reaction product at a ratio of 100:20 with solvent deasphalting (Sinopec, Maoming Branch) with a penetration of 86 1 / 10mm at 25°C at a ratio of 100:20 at 130°C to obtain a road asphalt product.

Embodiment 3

[0039]The catalytic oil slurry is ultrasonically treated, the ultrasonic frequency is 28kHz, the ultrasonic power density is 60 W / L, and the ultrasonic treatment time is 0.3 hours. The treated oil slurry was subjected to vacuum distillation to obtain topped oil slurry, wherein the vacuum distillation process was the same as in Example 1.

[0040] Step 1. First add 100 parts of topping oil slurry and 8 parts of alkylphenol disulfide into a reaction kettle at 220°C, and stir to mix evenly, and react for 120 minutes; Step 2, add 0.2 parts after cooling to 130°C Polyphosphoric acid and 1.6 parts of orthophosphoric acid were mixed for 120 minutes; step 3, the obtained reaction product was mixed with Huanxiling 90# road asphalt ( Liaohe Petrochemical General Plant) to mix evenly to obtain road asphalt products.

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Abstract

The invention discloses a method for preparing road asphalt through catalytic slurry oil. The method comprises the following steps: (1) catalytic cracking slurry oil is distilled under reduced pressure, and topped slurry oil is obtained; (2) a crosslinking agent and an activation crosslinking agent are added to the topped slurry oil, stirred and mixed to have a crosslinking condensation reaction and then modified slurry oil is obtained; (3) modified slurry oil and basic asphalt are blended, and a road asphalt product is obtained. The catalytic slurry oil is topped, has the crosslinking condensation reaction and then is blended with the basic asphalt, the road asphalt product with good temperature sensing performance and anti-aging performance is obtained, and meanwhile, the yield of liquid products of a secondary machining device is improved.

Description

technical field [0001] The invention belongs to the field of petrochemical technology, and in particular relates to a method for preparing road asphalt by using catalytic oil slurry as a raw material. Background technique [0002] The quality of road asphalt is closely related to the properties of crude oil. Generally, the wax content of intermediate base crude oil is relatively low, and standard road asphalt products can be produced by traditional distillation, oxidation, blending and combination methods. [0003] Catalytic cracking oil slurry is a by-product of the petroleum refining process. It is mainly rich in aromatics and colloids, of which condensed ring aromatics account for about half. Due to the presence of unstable active carbon bonds in fused ring aromatics, oxidative condensation reactions are prone to occur to produce coke. Carbon directly affects the production efficiency of the catalytic cracking unit; in addition, it also contains a small amount of asphalt...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L91/00C10G57/02
Inventor 徐青柏陈杰万淼宣根海石君章
Owner CHINA PETROLEUM & CHEM CORP
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