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Method for preparing heat-conducting preform through heavy oil-waste plastic blending and application of heat-conducting preform

A technology of waste plastics and prefabricated bodies, which is applied in plastic recycling, chemical instruments and methods, heat exchange materials, etc., can solve the problems of complex preparation steps, limit the utilization of high-value resources, and require high equipment conditions, and achieve mature technology, The effect of high applicability and convenient preparation

Active Publication Date: 2021-07-09
渤瑞环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Methods for preparing high-value carbon materials from heavy oil and waste plastics are disclosed in the prior art, such as: a method for doping porous carbon based on coal / heavy oil hydrogenation co-refining residue, a method for preparing hydrogenated coal tar pitch-based carbon fibers, waste plastics The method of preparing carbon nanotubes by catalytic pyrolysis, etc., these methods have problems such as complicated preparation steps, high requirements for equipment conditions, and the need to introduce other auxiliary chemical substances, which limit the utilization of heavy oil and waste plastics to high-value resources of carbonaceous materials

Method used

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  • Method for preparing heat-conducting preform through heavy oil-waste plastic blending and application of heat-conducting preform
  • Method for preparing heat-conducting preform through heavy oil-waste plastic blending and application of heat-conducting preform
  • Method for preparing heat-conducting preform through heavy oil-waste plastic blending and application of heat-conducting preform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Crush the thermosetting waste plastics, use a standard sieve to sieve out the particles with the required mesh size of 60 mesh, and then fully stir and mix them with the catalytic cracking oil slurry. The mixing ratio of thermosetting waste plastics and industrial by-product heavy oil is 1:1. Take 500g of the mixture, put it into the still, set the temperature rise rate of the reaction vessel to 1°C / min, fill it with inert gas, and start vacuum distillation after emptying, the temperature of the distillation cut fraction is 450°C, and the temperature in the still is 350°C ℃. After the distillation is over, take out the distillation residue asphalt, put it into the carbonization furnace, and set up three-stage heating: 1. In an inert atmosphere, heat up from room temperature to 500°C, with a heating rate of 10°C / min, stay for 5 hours, and naturally cool to room temperature ;2. In air atmosphere, heat up from room temperature to 310°C at a heating rate of 1°C / min, stay fo...

Embodiment 2

[0049] Crush thermosetting waste plastics, use a standard sieve to sieve out the required mesh particles of 100 meshes, and then fully stir and mix them with coal tar. The mixing ratio of thermosetting waste plastics and industrial by-product heavy oil is 1:3. Take 500g of the mixed material, put it into the still, set the temperature rise rate of the reaction vessel to 5°C / min, fill it with inert gas, and start vacuum distillation after emptying, the temperature of the distillation cut fraction is 500°C, and the temperature in the still is 300°C ℃. After the distillation is over, take out the distillation residue asphalt, put it into the carbonization furnace, and set three-stage heating: 1. In an inert atmosphere, the temperature is raised from room temperature to 450°C, and the heating rate is 8°C / min, and it stays for 5 hours, and then naturally cools to room temperature. ;2. In air atmosphere, heat up from room temperature to 280°C at a heating rate of 1°C / min, stay for 2...

Embodiment 3

[0051] Crush the thermosetting waste plastics, use a standard sieve to sieve the particles with the required mesh size of 80 mesh, and then fully stir and mix them with pharmaceutical residues. The mixing ratio of thermosetting waste plastics and industrial by-product heavy oil is 1:2. Take 500g of the mixture, put it into the still, set the temperature rise rate of the reaction vessel to 1°C / min, fill it with inert gas, and start vacuum distillation after emptying, the temperature of the distillation cut fraction is 450°C, and the temperature in the still is 350°C ℃. After the distillation is over, take out the distillation residue asphalt, put it into the carbonization furnace, and set the three-stage heating program: 1. In an inert atmosphere, the temperature is raised from room temperature to 480°C, the heating rate is 5°C / min, and it stays for 6h, then naturally cools down to room temperature ;2. Raise the temperature from room temperature to 350°C in an air atmosphere at...

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Abstract

The invention belongs to the technical field of industrial low-value byproduct / waste resource utilization, and particularly relates to a method for preparing a heat-conducting preform through heavy oil-waste plastic blending and application. The method specifically comprises the following steps: (1) pretreating thermosetting waste plastics, and then fully stirring and uniformly mixing the pretreated thermosetting waste plastics with industrial byproduct heavy oil; (2) carrying out reduced pressure distillation on the mixture, and taking out distillation residue asphalt after distillation is finished; (3) carrying out heating carbonization reaction on the residual asphalt to form a pore structure; and (4) conducting oxidizing in air to stabilize a porous structure, and further conducting graphitizing to obtain the porous heat-conducting preform with a remarkable pore channel structure. The method not only is expected to solve the problem of high-value effective green utilization of various industrial byproduct heavy oil, but also can provide an effective scheme for solving the severe environmental protection problem caused by wide accumulation and retention of plastic wastes on the earth surface and the ocean, and realizes collaborative resource comprehensive utilization of the industrial byproduct heavy oil and the thermosetting waste plastics.

Description

technical field [0001] The invention belongs to the technical field of industrial low-value by-products / waste resource utilization, and specifically relates to a method and application of a heat-conducting prefabricated body prepared by blending heavy oil and waste plastics. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] While the modern chemical industry provides convenient industrial products for human society, it also produces a large number of by-products, such as catalytic cracking oil slurry by-product of petrochemical industry, coal tar by-product of coal coking chemical industry, tail oil by-product of pharmaceutical chemical industry and Waste lubricating oil re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/14C01B32/205
CPCC09K5/14C01B32/205Y02W30/62
Inventor 王坤胤杨聪陈坤徐航蒋继增刘贺郭爱军
Owner 渤瑞环保股份有限公司
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