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

Pretreatment technology for co-refining of heavy oil and tire rubber powder

A pretreatment and tire powder technology, which is applied in the petroleum industry and the preparation of liquid hydrocarbon mixtures, etc., can solve the problems of continuous feeding and lack of fluidity of raw materials, and achieve the effect of weakening the swelling effect

Pending Publication Date: 2019-04-16
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pretreatment process for co-refining of heavy oil and tire rubber powder, to provide technical support for the continuous operation of the process device for co-pyrolysis of waste tire powder and oil, and to solve the serious problem of tire powder and oil. The raw material has no fluidity and cannot be continuously fed due to the swelling phenomenon

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
  • Pretreatment technology for co-refining of heavy oil and tire rubber powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a pretreatment process for co-smelting heavy oil and tire rubber powder, which is characterized in that it includes the following steps:

[0021] Preheat the catalytic cracking oil slurry to 260°C, add the waste tire powder crushed to a particle size of 60 mesh into the raw material oil at a uniform speed at a ratio of 1:3 and mix evenly, pour nitrogen into the raw material tank, and the pretreatment temperature is 260°C , the residence time is 20min, and the stirring rate is 450r / min. The variation of the viscosity of the mixed slurry with temperature is shown in the table below:

[0022] temperature / ℃

[0023] It can be seen from the above data that a uniform, stable and fluid mixed slurry is obtained by using the method of this example, and the continuous operation of co-refining of oil and tire powder can be realized through the feeding mode of double raw material tanks

Embodiment 2

[0025] This embodiment provides a pretreatment process for co-smelting heavy oil and tire rubber powder, which is characterized in that it includes the following steps:

[0026] Preheat the residual oil to 200°C, add the waste tire powder crushed to 80 mesh particle size into the raw material oil at a uniform speed at a ratio of 1:2 and mix evenly, protect under nitrogen atmosphere, pretreatment temperature is 250°C, residence time is 30min, stir The speed is 450r / min. After pretreatment, measure the viscosity change with temperature:

[0027] temperature / ℃

[0028] It can be seen from the above data that the method of this example is used to obtain a uniform, stable and fluid mixed slurry, and the continuous operation of co-refining of oil and tire powder can be realized through the feeding mode of double raw material tanks.

Embodiment 3

[0030] This embodiment provides a pretreatment process for co-smelting heavy oil and tire rubber powder, which is characterized in that it includes the following steps:

[0031] Preheat the coal tar to 240°C, add the waste tire powder crushed to 100 meshes into the raw material oil at a uniform speed in a ratio of 1:4 and mix evenly, under the protection of nitrogen atmosphere, the pretreatment temperature is 200°C, the residence time is 60min, and the stirring rate is 450r / min. After pretreatment, measure the viscosity change with temperature:

[0032] temperature / ℃

[0033] It can be seen from the above data that the method of this example is used to obtain a uniform, stable and fluid mixed slurry, and the continuous operation of co-refining of oil and tire powder can be realized through the feeding mode of double raw material tanks.

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 provides a pretreatment technology for co-refining of heavy oil and tire rubber powder, and belongs to the technical field of rubber pyrolysis. The pretreatment technology includes the following steps that matched oil is preheated to 200-260 DEG C; the tire powder is uniformly added into the matched oil; under the atmosphere of protective gas, reaction is conducted for 20 minutes ormore at the temperature of 200 DEG C, and pretreatment is conducted under stirring conditions. Through simple and mild conditions, mixed paste is prepared, the swelling effect of the tire rubber powder in the matched oil is weakened to a great degree, and technical supports are provided for continuous operation of a co-refining device for heavy oil and tire rubber powder.

Description

technical field [0001] The invention belongs to the technical field of rubber pyrolysis, in particular to a pretreatment process for co-smelting heavy oil and tire rubber powder. technical background [0002] As a new process technology, the pyrolysis technology of waste tires has become a research hotspot in the recycling of waste tires. The pyrolysis products, pyrolysis gas, pyrolysis oil and solid residues can be turned into high value-added products after further processing. The use of the product can maximize the recycling of waste tire resources. However, since waste tires are elastic solids, even if they are crushed into rubber powder, their heat and mass transfer capabilities are poor, which makes the pyrolysis process more difficult. Liquid oil not only has fluidity, but its good thermal conductivity is also an advantage that distinguishes it from other substances. Therefore, co-pyrolysis of waste tires mixed with oil has gradually entered the research field of sch...

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 Applications(China)
IPC IPC(8): C10G1/10C10G1/00
CPCC10G1/008C10G1/10
Inventor 杜峰邓文安李传罗辉李庶峰王晓雄
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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