Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A processing method for reducing viscosity of high-viscosity oil

A technology for high-viscosity and viscous residue oil, applied in the petroleum industry, catalytic cracking, cracking, etc., can solve problems such as prolonging the production cycle, achieve the effects of reducing entrainment, prolonging the operating cycle, and enhancing heat transfer capacity

Active Publication Date: 2021-05-04
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method only prolongs the production cycle by optimizing the process conditions, and does not fundamentally solve the problem of coking in the furnace tube of the visbreaking heating furnace

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A processing method for reducing viscosity of high-viscosity oil
  • A processing method for reducing viscosity of high-viscosity oil
  • A processing method for reducing viscosity of high-viscosity oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0031] Carry out 4 groups of tests on the heavy oil visbreaking test device, are respectively embodiment 1, embodiment 2, embodiment 3, embodiment 4. The test device flow chart of embodiment sees figure 1 .

[0032] The heavy oil raw material enters from the top of the visbreaking tower after exchanging heat with the vis-reduced residual oil generated by the heat exchanger to 200-400°C; the catalytic flue gas raw material passes through the heat exchanger and reacts with the unstable gasoline and vis-reduced diesel oil After exchanging heat to 200-300°C, it enters the gas heating unit to heat to 350-900°C, and then the heated gas enters the bottom of the viscosity-reducing tower; 8 layers of trays are set in the viscosity-reducing tower, and each layer is equipped with 4 mass transfer elements; The viscous tower is contacted step by step with 350-900℃ high-temperature catalytic flue gas hot air countercurrently, and the liquid droplets rapidly undergo thermal cracking reactio...

Embodiment 1

[0035] The raw material oil used in Example 1, Example 2, Example 3, Example 4 and Comparative Example 1 is the same vacuum residue feed, and its kinematic viscosity at 100°C is 595mm 2 / s, the feed rate is 60kg / h, the specific properties are shown in Table 1. For other operating procedures, please refer to the descriptions in the specific embodiment section of this manual in conjunction with the accompanying drawings, see Table 2 for the main operating conditions, and see Table 3 for product distribution.

[0036] Table 1 Properties of raw oil

[0037]

[0038] Table 2 Main operating conditions

[0039]

[0040] Table 3 Product Distribution

[0041]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a processing method for reducing the viscosity of high-viscosity oil. The high-viscosity oil raw material is subjected to visbreaking reaction in the visbreaking tower under the action of catalytic flue gas. The reaction pressure of the visbreaking is generally -0.03-0.3MPa, preferably -0.01-0.1Mpa, and the reaction temperature is generally 380-550°C, preferably 400-450°C; the reaction time for visbreaking is generally 0.01-60min, preferably 5-20min. Holes are opened on the cylinder wall of the air-lifting cylinder, and at least one layer of mesh plate is arranged in the air-lifting cylinder. The processing method can not only utilize the temperature of the catalytic flue gas, but also increase the yield of light products, and effectively prevent equipment from coking.

Description

technical field [0001] The invention relates to a processing method for reducing the viscosity of high-viscosity oil, in particular to a processing method for reducing the viscosity of high-viscosity oil with low energy consumption. Background technique [0002] Visbreaking has the advantages of simple equipment, less investment, the ability to process low-quality residual oil, and mature technology. It can produce light oil or raw materials for further light processing, so it is widely used in refineries or residual oil processing plants. Relevant statistical data show that in the processing of residue oil, visbreaking accounts for more than 30%, while in the thermal processing of residue oil, visbreaking accounts for more than 50%. . [0003] Visbreaking is a shallow thermal conversion process, which mainly uses vacuum residue as raw material. Visbreaking has been used for resid upgrading since the 1930s. Its purpose is thermal conversion, which can not only reduce the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/00
Inventor 彭冲杜艳泽曾榕辉吴子明王仲义孙士可
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com