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Method for desorbing catalytic cracking oil slurry solids

A catalytic cracking oil slurry and solid content technology, which is applied in the petroleum industry, hydrocarbon oil treatment, and multi-stage serial refining process treatment, etc., can solve the problems of unstable operation of equipment, poor separation effect, and poor quality

Active Publication Date: 2018-12-28
SINOPEC LUOYANG TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with foreign countries, the quality of crude oil used by domestic refineries is usually poor, and the content of solid particles and polar components in the catalytic cracking oil slurry is relatively high. If the foreign electrostatic separation technology is simply applied, the separation effect will inevitably be poor and the condition that the equipment cannot operate stably

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  • Method for desorbing catalytic cracking oil slurry solids
  • Method for desorbing catalytic cracking oil slurry solids
  • Method for desorbing catalytic cracking oil slurry solids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for removing solids in catalytic cracking oil slurry, comprising the following steps:

[0038] In the first step, FCC oil slurry is mixed with fresh solvent at a mass ratio of 1:1 to form an oil slurry mixture;

[0039] In the second step, the oil slurry mixture is heated to 100°C and then transported to an electrostatic coalescence tank with a DC electric field strength of 1500V / cm for primary desolidification treatment to obtain primary purified oil slurry mixture and heavy oil slurry;

[0040] In the third step, the primary purified oil slurry mixture enters an electrostatic adsorption tank equipped with adsorption fillers with a DC electric field strength of 1500V / cm for deep desolidification treatment to obtain a deeply purified oil slurry mixture;

[0041] In the fourth step, the deeply purified oil slurry enters the flash tower for desolvation treatment to obtain purified oil slurry and residual solvent;

[0042] In the fifth step, most of the residual ...

Embodiment 2

[0045] A method for removing solids in catalytic cracking oil slurry, comprising the following steps:

[0046] In the first step, FCC oil slurry is mixed with fresh solvent at a mass ratio of 1:1 to form an oil slurry mixture;

[0047] In the second step, the oil slurry mixture is heated to 100°C and then transported to an electrostatic coalescence tank with a DC electric field strength of 5000V / cm for primary desolidification treatment to obtain primary purified oil slurry mixture and heavy oil slurry;

[0048] In the third step, the primary purified oil slurry mixture enters an electrostatic adsorption tank equipped with adsorption fillers with a DC electric field strength of 5000V / cm for deep desolidification treatment to obtain a deeply purified oil slurry mixture;

[0049] In the fourth step, the deeply purified oil slurry enters the flash tower for desolvation treatment to obtain purified oil slurry and residual solvent;

[0050] In the fifth step, most of the residual ...

Embodiment 3

[0053] A method for removing solids in catalytic cracking oil slurry, comprising the following steps:

[0054] In the first step, FCC oil slurry is mixed with fresh solvent at a mass ratio of 1:1 to form an oil slurry mixture;

[0055] In the second step, the oil slurry mixture is heated to 100°C and then transported to an electrostatic coalescence tank with a DC electric field strength of 8000V / cm for primary desolidification treatment to obtain primary purified oil slurry mixture and heavy oil slurry;

[0056] In the third step, the primary purified oil slurry mixture enters an electrostatic adsorption tank equipped with adsorption fillers with a DC electric field strength of 3000V / cm for deep desolidification treatment to obtain a deeply purified oil slurry mixture;

[0057] In the fourth step, the deeply purified oil slurry enters the flash tower for desolvation treatment to obtain purified oil slurry and residual solvent;

[0058] In the fifth step, most of the residual ...

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Abstract

The invention discloses a method for desorbing catalytic cracking oil slurry solids. The method comprises the following steps: mixing catalytic cracking oil slurry with a fresh solvent in a mixing tank so as to obtain an oil slurry mixture; conveying the oil slurry mixture into an electrostatic coalescence tank for primary solid desorption treatment, and carrying out deep solid desorption treatment in an electrostatic desorption tank, and further carrying out solvent desorption treatment in a flash tower, thereby obtaining purified oil slurry and a residual solvent. The method is simple in process procedure and equipment, simple and convenient to operate, gentle in process condition, low in energy consumption, wide in application range and easy in large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of oil slurry purification treatment, and in particular to a method for removing solid content in catalytic cracking oil slurry. Background technique [0002] Catalytic cracking oil slurry is a by-product produced by the catalytic cracking (FCC) process. Because of its high content of solid particles (mainly catalyst particles and metal ions), high density and high viscosity, its utilization has been greatly restricted. limit. Currently, most refineries sell FCC slurry as a blending component for heavy fuel oil. The use of catalytic cracking oil slurry as fuel oil will reduce the utilization value of catalytic cracking oil slurry, because the catalytic cracking oil slurry contains a large amount of polycyclic aromatic hydrocarbons, which can be used to produce carbon black, needle coke, carbon fiber and extender oil, plastics Plasticizers, heavy traffic road asphalt additives and many other high-quality ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/08
CPCC10G53/08C10G2300/201
Inventor 崔新安唐应彪蒋兴家申明周李春贤
Owner SINOPEC LUOYANG TECH CO LTD