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A method for producing road asphalt from super heavy oil

A technology for road asphalt and super-heavy oil, applied in the field of super-heavy oil production of road asphalt, can solve the problems of large evaporation loss and affecting the quality of asphalt products, etc.

Active Publication Date: 2014-10-15
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the AH-70, AH-90 and AH-110 produced by this technology meet the requirements of the national standard, there is still a large evaporation loss, which affects the quality of asphalt products

Method used

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  • A method for producing road asphalt from super heavy oil
  • A method for producing road asphalt from super heavy oil
  • A method for producing road asphalt from super heavy oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 Add a certain amount of atmospheric residue of low-wax heavy oil to Liaohe super heavy oil

[0019] Add 10m%, 5m% low-wax heavy oil atmospheric residues a and b respectively to Liaohe ultra-heavy oil, and carry out small test in the laboratory. The reaction temperature is 380°C and the residence time is 100 minutes. The resulting oil Real boiling point distillation is carried out to obtain asphalt, and its properties meet the AH-90 technical requirements of GB / T15180-2010, wherein the mass changes in the film oven test are 0.15m% and 0.23m%, respectively.

[0020] Contrast 1: The mass change of AH-70 bitumen obtained by direct distillation of Liaohe super heavy oil is 1.31m% in the film oven test; Liaohe super heavy oil is obtained by direct distillation of atmospheric residue a of low-wax heavy oil added with 10m% In the film oven test of AH-70 asphalt, the mass change is 1.22m%. Liaohe ultra-heavy oil is subjected to real boiling point distillation at the re...

Embodiment 2

[0021] Example 2 Adding a certain amount of vacuum residue of low-wax heavy oil to Liaohe super heavy oil

[0022] Add 8m% and 20m% of vacuum residue c and d of low-wax heavy oil to Liaohe ultra-heavy oil respectively (see the table for properties), and conduct a small test in the laboratory. The reaction temperature is 365°C and the residence time is 200 minutes. The resulting oil is distilled at the real boiling point to obtain asphalt, and its properties meet the technical requirements of AH-70 and AH-90 of GB / T15180-2010, wherein the mass change of AH-70 in the film oven test is 0.10m%, 0.09m%; AH -90 is 0.17m% and 0.13m%, respectively.

[0023] Contrast 2: The mass change of AH-70 bitumen obtained by direct distillation of Liaohe super heavy oil is 1.31m% in the film oven test; the reaction temperature of Liaohe super heavy oil is 365°C, the residence time is 200 minutes, and the resulting oil is tested for true boiling point The bitumen obtained by distillation meets th...

Embodiment 3

[0024] Example 3 The decompression wax oil of a certain amount of low-wax heavy oil added to Liaohe super heavy oil

[0025] Add 6m% and 12m% of the second- and third-line distillates of low-wax heavy oil to Liaohe ultra-heavy oil respectively (see the table for properties), and conduct a small test in the laboratory. The reaction temperature is 410°C and the residence time is 40 minutes. The resulting oil is subjected to true boiling point distillation to obtain asphalt, whose properties meet the technical requirements of AH-70 and AH-90 of GB / T15180-2010, wherein the mass changes of AH-70 in the film oven test are 0.05m% and 0.04m% respectively; AH-90 is 0.08m%, 0.07m%, respectively.

[0026] Contrast 3: The mass change of the AH-70 bitumen obtained by the direct distillation of Liaohe super heavy oil is 1.31m% in the film oven test; Liaohe super heavy oil is reacted at 410°C and the residence time is 40 minutes, and the resulting oil is tested for true boiling point The bi...

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Abstract

The invention relates to a method for producing road asphalt through super heavy oil. The method is characterized by comprising the following steps of: adding 5-20m percent by mass of oil component into Liao river super heavy oil; carrying out cracking reaction at the temperature of 365-410 DEG C for 40-200 minutes; feeding a reaction product into a vacuum tower, and carrying out vacuum fractional distillation; and controlling a cutting temperature of vacuum distillate to be larger than or equal to 410 DEG C so as to obtain tower bottom vacuum residual oil, namely a qualified heavy duty road petroleum asphalt series product, wherein the oil component is one or more of atmospheric pressure residual oil of low-wax thickened oil, vacuum residuum, vacuum gas oil, or wax oil which has narrow fraction with a fraction range being from 250 DEG C to 540 DEG C and is generated in a Liao river super heavy oil thermal cracking process. The road petroleum asphalt product produced by the method meets the GB / T15180-2010 technical requirements.

Description

technical field [0001] The invention belongs to the technical field of petroleum processing and relates to a method for producing road asphalt from super heavy oil. Background technique [0002] Naphthenic crude oil resources account for about 2.2% of the world's crude oil reserves, and low-wax naphthenic crude oil is even rarer. This type of naphthenic crude oil is used to produce various electrical oils, low-condensation naphthenic lubricating oils and high-grade road petroleum asphalt good raw material. Liaohe super-heavy crude oil produced in Liaohe Oilfield has this feature. The crude oil has a high density (more than 1000Kg / m 3 ), high viscosity, high acid value, high content of colloid and asphaltene, high content of residual carbon and metal impurities, low wax content, etc., almost no gasoline in the composition of crude oil, only a small amount of diesel oil, more than 350 ℃ The residual oil is more than 90m%. Judging from the nature of crude oil, this crude oil ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G55/04C10C3/02C10C3/06
Inventor 刘海澄孙丽相养冬年成春史承文王磊刘维功黄鹤孙井侠王宏德李媛媛
Owner PETROCHINA CO LTD
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