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Preparation method for slurry oil mixed asphalt

An oil slurry and blending technology, which is applied in the processing of tar pitch/petroleum pitch/natural pitch, processing tar pitch/petroleum pitch/natural pitch by mixed fractions, petroleum industry, etc. Stability and other problems, to achieve the effect of improving oil slurry properties, high penetration ratio, and improving anti-aging performance

Inactive 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

[0010] The use of oxidizing agents in the oil slurry can not only oxidize the components that are unstable to oxidation in the oil slurry, but also produce new unstable products; at high temperatures, the peroxide quickly decomposes into oxygen, and compared with the reaction time of the oil slurry Short (heating and fractionation process), resulting in a relatively low utilization rate of oxygen (or peroxide); peroxide is a strong oxidant, which is a flammable and explosive dangerous product, and there are safety hazards in the implementation process

Method used

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  • Preparation method for slurry oil mixed asphalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Using the FY-Ⅲ true boiling point distillation unit produced by Fushun Petrochemical Research Institute, distill the catalytic cracking oil slurry of Shengli Oil Refinery of Qilu Branch to obtain oil slurry S1 at >430°C.

[0027] Heat the oil slurry at >420°C to 150°C and keep it at 150±5°C, add 5% (accounting for the weight of the slurry) of tertiary dodecyl mercaptan (Aladdin Reagent Company), and stir for 45 minutes to obtain modified oil pulp TS-1. Add 30% TS-1 to 145°C Tahe residual oil (penetration 40 1 / 10mm) and stir for 45 minutes to obtain blended pitch. The properties of the blended pitch are shown in Table 1.

Embodiment 2

[0029] Using the FY-Ⅲ real boiling point distillation device produced by Fushun Petrochemical Research Institute, distill the catalytic cracking oil slurry of Jingmen Branch to obtain oil slurry S2 at >420 °C.

[0030] Heat the oil slurry at >420°C to 130°C and keep it at 130±5°C, add 1% (accounting for the weight of the oil slurry) cyclohexanethiol (Aladdin Reagent Company), and stir for 30 minutes to obtain the modified oil slurry TS- 2. Add 40% of TS-2 to 145°C Jingmen dissolved deasphalt (penetration 15 1 / 10mm) and stir for 30 minutes to obtain blended pitch. The properties of the blended pitch are shown in Table 1.

Embodiment 3

[0032] Using the FY-Ⅲ true boiling point distillation device produced by Fushun Petrochemical Research Institute, the catalytic cracking oil slurry of Jiujiang Branch Company was distilled to obtain oil slurry S3 at >420 °C.

[0033] Heat the oil slurry at >420°C to 130°C and keep it at 130±5°C, add 3% (accounting for the weight of the slurry) of thiophenol (Aladdin Reagent Company) and stir for 60 minutes to obtain the modified oil slurry TS-3. Add 10% TS-3 to Tahe No. 60 asphalt at 145°C (penetration 55 1 / 10mm), and stir for 30 minutes to obtain a blended asphalt. The properties of the blended asphalt are shown in Table 1.

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Abstract

The invention discloses a preparation method for slurry oil mixed asphalt. The preparation method comprises the following steps: (1) adding a sulfhydryl compound into slurry oil for mixing reaction to obtain modified slurry oil; (2) adding the modified slurry oil into a molten asphalt stock for mixing to obtain the slurry oil mixed asphalt. The slurry oil mixed asphalt prepared by adopting the preparation method has a relatively high penetration ratio, and the anti-aging performance of asphalt is improved; the preparation method expands the application approaches of slurry oil resources in asphalt, and facilitates the increase of utilization benefits of slurry oil.

Description

technical field [0001] The invention relates to a preparation method of oil slurry blended asphalt. Background technique [0002] FCC is one of the important secondary processing techniques of refineries, and its processing capacity ranks first in the secondary processing of Chinese refineries. As FCC raw materials become increasingly heavy, the amount of oil slurry dumped outside the refinery is increasing, generally reaching 5% to 10% of its processing volume. [0003] Although there are many discussions and suggestions on the comprehensive utilization of oil slurry, there are not many practical ones. At present, most of the oil slurry is still burned as cheap boiler fuel or its blending components, and the economic benefit is low. Apart from this, only a small fraction is used as a component of blended road bitumen. [0004] Oil slurry has high aromatics content, generally more than 50%, so it is generally considered as a wax-poor and aromatic raw material, which can b...

Claims

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Application Information

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IPC IPC(8): C10C3/00
CPCC10C3/005
Inventor 刘树华李明林郭皎河张建峰宁爱民姚汉荣傅丽
Owner CHINA PETROLEUM & CHEM CORP
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