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Method and device for lightening vacuum residue/coal tar and producing heavy traffic asphalt

A technology of vacuum residue oil and heavy-cross asphalt, which is applied in the fields of coal chemical industry, petrochemical industry and oil refining, can solve the problem of inability to produce high-grade heavy-cross asphalt, etc., to improve the extraction efficiency, simplify the catalytic cracking unit, and reduce the investment. Effect

Active Publication Date: 2016-09-28
SINOPEC NANJING ENG & CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method does not fully and effectively utilize the vacuum residue, and cannot produce high-grade heavy traffic asphalt

Method used

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  • Method and device for lightening vacuum residue/coal tar and producing heavy traffic asphalt
  • Method and device for lightening vacuum residue/coal tar and producing heavy traffic asphalt
  • Method and device for lightening vacuum residue/coal tar and producing heavy traffic asphalt

Examples

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Effect test

Embodiment 1

[0035]A method for realizing the lightening of vacuum residue / coal tar and producing heavy-duty asphalt. The raw material oil 1 is firstly sent to the catalytic cracking unit (2) through the raw material oil delivery pipeline (1), and the catalytic cracking unit only includes In the reaction-regeneration system, the raw oil completes the catalytic reaction in the catalytic cracking unit (2), and the catalytic cracking catalysts used are ZSM-5 zeolite, omega zeolite, alumina and montmorillonite, and the catalytic cracking reaction temperature of the reaction-regeneration system is 500 ℃, the regeneration temperature is 700℃, the mass ratio of catalyst to raw oil is 4:1, the reaction time is 5s, and the reaction pressure (gauge pressure) is 0.5MPa. The feed liquid after catalytic cracking directly enters the solvent extraction device (3) without separation, and the solvent extraction device (3) adopts a one-stage extraction and one-stage sedimentation process, and the extraction ...

Embodiment 2

[0040] A method for realizing the lightening of vacuum residue / coal tar and producing heavy-duty asphalt. The raw material oil 2 is firstly sent to the catalytic cracking unit (2) through the raw material oil delivery pipeline (1), and the catalytic cracking unit only includes In the reaction-regeneration system, the raw oil completes the catalytic reaction in the catalytic cracking unit (2), and the catalytic cracking catalyst used is ultra-stable Y-type zeolite, ZRP zeolite, alumina, titanium oxide, diatomaceous earth and montmorillonite without rare earth elements. The catalytic cracking reaction temperature of the reaction-regeneration system is 480°C, the regeneration temperature is 670°C, the mass ratio of catalyst to raw oil is 7:1, the reaction time is 0.5s, and the absolute pressure is 0.1MPa. The feed liquid after catalytic cracking directly enters the solvent extraction device (3) without separation, and the solvent extraction device (3) adopts a one-stage extraction...

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Abstract

The invention discloses a method and device for carrying out lightening and producing heavy duty asphalt through vacuum residuum / coal tar. The method includes the steps that firstly, raw oil is delivered to a catalytic cracking unit, reacting is carried out under the effect of catalysts, liquid obtained after catalytic cracking directly enters a solvent extracting device without being subjected to separating, colloid and asphaltene are extracted through solvent extracting, and deasphalted oil and deoiled asphalt are respectively obtained; secondly, the obtained deasphalted oil is delivered to a supercritical solvent recycling tower, solvents and light oil are respectively obtained, the solvents are returned to the solvent extracting device to be recycled, the light oil enters a fractionating tower to be fractionated, and light oil products such as liquefied gas, gasoline and diesel are respectively obtained; finally, the deoiled asphalt is delivered to an asphalt mixing device, the raw vacuum residuum / coal tar is used as asphalt diluents, and therefore the asphalt for roads is produced and obtained. By means of the method and device, the raw oil is sufficiently used and lightened to the maximum degree, and the light oil products are obtained.

Description

technical field [0001] The invention belongs to the fields of oil refining, petrochemical industry, and coal chemical industry, and in particular relates to a method for lightening vacuum residue / coal tar, more specifically, lightening treatment and heavy delivery of vacuum residue / coal tar The asphalt blending process is organically combined to produce light oil and heavy traffic asphalt vacuum residue lightening process. Background technique [0002] With the requirements of sustainable economic development and increasingly stringent environmental protection regulations, people's demand for light and clean fuels is increasing. requested product. [0003] Due to the high viscosity, high specific gravity, heavy metal and sulfur content, high colloid and asphaltenes of vacuum residue / coal tar, it is directly used as raw material for hydrocracking or catalytic cracking units, resulting in low yield of gasoline and diesel and heat loss Large, unfavorable factors such as high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G55/06
Inventor 崔保顺郑战利陈金樑张凤娇
Owner SINOPEC NANJING ENG & CONSTR