Combined technologic process for manufacturing petroleum residue

A combined process and residual oil technology, applied in the field of combined process of residual oil processing, can solve the problems of increasing costs and expenses, etc.

Inactive Publication Date: 2005-05-04
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the start-up period can be extended under moderate conditions, the free radical initiators and chain transfer agents added are all organic compounds, which increases the cost and expense

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
  • Combined technologic process for manufacturing petroleum residue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The raw material that present embodiment adopts is vacuum residue A, and its property sees 1, and table 2 is the deoiled bitumen property that vacuum residue A obtains after propane deasphalting, and deasphalting oil yield is 50% (weight), It can be seen from Table 2 that the kinematic viscosity of deoiled bitumen at 100°C is 5 times that of vacuum residue A, the crackable component of saturated hydrocarbon is only 15.40%, and the colloid is as high as nearly 50%.

[0032] Trials were carried out on a medium-sized solvent deasphalting unit with a RIPP capacity of 10 kg / h and a visbreaker at 5 kg / h.

[0033] Table 3 shows the visbreaking process conditions, material balance and visbreaking residue properties of the mixture. It can be seen from Table 3 that the viscosity of deoiled asphalt (at 100°C) has dropped to 188.5mm 2 / s, the effect of reducing viscosity is obvious.

Embodiment 2

[0035] The raw material used in this embodiment is vacuum residue B, whose properties are shown in 1. Table 2 shows the properties of deoiled asphalt obtained after deasphalting vacuum residue B with butane. The yield of deasphalted oil is 63% (weight). , as can be seen from Table 2, the kinematic viscosity of deoiled asphalt at 100 ° C is about 10 times higher than that of vacuum residue B, saturated hydrocarbons as crackable components are only 5.2%, and colloids are as high as 52%.

[0036] The tests were carried out on a medium-sized solvent deasphalting unit with a RIPP capacity of 10 kg / h and a mild thermal cracking unit at 5 kg / h.

[0037] Table 3 shows the visbreaking process conditions, material balance and visbreaking residue properties of the mixture. It can be seen from Table 3 that the viscosity of deoiled asphalt (at 100°C) has dropped to 347.9mm 2 / s, the effect of reducing viscosity is obvious.

[0038] Example 1

[0039] Example 1

[00...

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

A combined processing method for residue oil. The raw material enters the upper part of the solvent deasphalting extraction tower after being preheated, and the solvent enters the lower part of the extraction tower according to a predetermined solvent ratio, and the residue oil and solvent are contacted in countercurrent in the extraction tower. Extraction, the deasphalted oil containing a large amount of solvent is used to recover the solvent, and the deoiled asphalt containing a small amount of solvent is discharged from the bottom of the extraction tower without solvent recovery and enters the heating furnace for heating, and then enters the reactor of the upflow visbreaking unit. The visbreaking reaction is carried out inside the visbreaking reaction, and the stream after the visbreaking reaction enters the fractionation tower of the upflow visbreaking unit, and the visbreaking gas, visbreaking gasoline and visbreaking residue are fractionated. Since the method does not recover the solvent in the deoiled asphalt, it saves the deoiled asphalt solvent recovery system, that is, the heating furnace, slows down the coking of the deoiled asphalt in the furnace tube, prolongs the start-up period, and provides a way out for the hard asphalt.

Description

technical field [0001] The invention belongs to a non-catalyzed thermal cracking method of hydrocarbon oil in the absence of hydrogen, more specifically, it is a residual oil processing combined process method for increasing the liquid yield of residual oil. Background technique [0002] Solvent deasphalting is an important process for upgrading residual oil. It is a physical liquid-liquid extraction process, and the residual oil is separated according to the basic principle that hydrocarbon solvents have different solubility for each component in the residual oil. Solvent deasphalting adjusts the operating conditions and controls the dissolving power of the solvent used to mainly dissolve saturated hydrocarbons and aromatic hydrocarbons, and remove most of the colloids and asphaltenes in the residual oil. In this way, the deasphalted The oil has the properties of high hydrogen-to-carbon ratio, low carbon residue, and low impurity content, which can ...

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): C10G55/04
Inventor 李锐申海平王玉章黄伟祈王子军
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap