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

Mesocarbon microbeads and preparation method thereof

A technology of mesophase carbon microspheres and biomass, which is used in the preparation/purification of carbon, etc.

Pending Publication Date: 2021-11-12
CHINA UNIV OF MINING & TECH (BEIJING)
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these additives have certain limitations due to cost or chemical properties, and biomass asphalt is rich in alkyl and cycloalkyl functional groups

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
  • Mesocarbon microbeads and preparation method thereof
  • Mesocarbon microbeads and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] a) Put 45g of coal tar pitch and 5g of biomass pitch in a stainless steel autoclave, heat up to 100°C after purging with nitrogen, and stir evenly at a stirring speed of 100R / min;

[0037] b) Heating the reactor from ambient temperature to 410°C with a heating rate of 5°C / min, keeping the reaction time for 7h, and cooling to room temperature under a nitrogen atmosphere;

[0038] c) Using a Soxhlet apparatus, use quinoline as a solvent to extract the product. After the extraction is colorless, wash the remaining solid with toluene. After washing, the solid is dried in an oven at 120°C for 2 hours;

[0039] d) Carbonize the extracted solid in a tube furnace under a nitrogen atmosphere. First, the sample is heated from room temperature to 350° C. at a heating rate of 5° C. / min. Then heat from 350°C to 700°C, reduce the heating rate to 1°C / min, then raise the temperature from 700°C to 1000°C at a rate of 5°C / min, and keep it for 1 hour after heating up to 1000°C, the whole ...

Embodiment 2

[0042] a) Put 42.5g of coal tar pitch and 7.5g of biomass pitch in a stainless steel autoclave, heat up to 100°C after purging with nitrogen, and stir evenly at a stirring speed of 100R / min;

[0043] b) Heating the reactor from ambient temperature to 410°C with a heating rate of 5°C / min, keeping the reaction time for 7h, and cooling to room temperature under a nitrogen atmosphere;

[0044] c) Using a Soxhlet apparatus, use quinoline as a solvent to extract the product. After the extraction is colorless, wash the remaining solid with toluene. After washing, the solid is dried in an oven at 120°C for 2 hours;

[0045] d) Carbonize the extracted solid in a tube furnace under a nitrogen atmosphere. First, the sample is heated from room temperature to 350° C. at a heating rate of 5° C. / min. Then heat from 350°C to 700°C, reduce the heating rate to 1°C / min, then raise the temperature from 700°C to 1000°C at a rate of 5°C / min, and keep it for 1 hour after heating up to 1000°C, the wh...

Embodiment 3

[0048] a) Put 40g of coal tar pitch and 10g of biomass pitch in a stainless steel autoclave, heat up to 100°C after purging with nitrogen, and stir evenly at a stirring speed of 100R / min;

[0049] b) Heating the reactor from ambient temperature to 410°C with a heating rate of 5°C / min, keeping the reaction time for 7h, and cooling to room temperature under a nitrogen atmosphere;

[0050] c) Using a Soxhlet apparatus, use quinoline as a solvent to extract the product. After the extraction is colorless, wash the remaining solid with toluene. After washing, the solid is dried in an oven at 120°C for 2 hours;

[0051] d) Carbonize the extracted solid in a tube furnace under a nitrogen atmosphere. First, the sample is heated from room temperature to 350° C. at a heating rate of 5° C. / min. Then heat from 350°C to 700°C, reduce the heating rate to 1°C / min, then raise the temperature from 700°C to 1000°C at a rate of 5°C / min, and keep it for 1 hour after heating up to 1000°C, the whole...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides mesocarbon microbeads and a preparation method thereof. The method comprises the following steps: putting coal tar pitch and biomass pitch into a reaction kettle, purging with inert gas, performing heating to 90-110 DEG C, and performing uniform stirring; continuously raising the temperature to 400-420 DEG C, keeping the temperature, and then performing cooling to room temperature in an inert gas atmosphere; extracting by using quinoline until the solution is colorless, washing the residual solid by using methylbenzene, and then performing drying; putting the dried solid into a furnace, and performing heating and carbonizing to obtain the mesocarbon microbeads. The process method is reasonable and environment-friendly, and the obtained mesocarbon microbeads are in the shape of uniform spheres and have large interlayer spacing and defect points.

Description

technical field [0001] The invention belongs to the field of coal-based new material processing, in particular to a method for preparing mesophase carbon microspheres by doping coal tar pitch with biomass pitch and the mesophase carbon microspheres prepared by the method. Background technique [0002] Mesophase carbon microspheres (MCMB) are the mesophilic liquid-phase pyrolysis products of polycyclic aromatic hydrocarbons. It can be prepared from coal or petroleum derived pitches, naphthalene isotropic pitches, heavy oils and coal tars. MCMB has been widely studied as a precursor for the preparation of carbon fibers, foams, and other advanced functional materials. Recently, more studies have focused on the use of MCMBs as electrode materials, such as Li-ion secondary batteries and Na-ion batteries. [0003] Since coal tar pitch contains a large amount of polycyclic aromatic hydrocarbons, it can be used as a precursor for the preparation of MCMB. Generally, mesophase carbo...

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): C01B32/05
CPCC01B32/05
Inventor 林雄超王彩红张玉坤李磊王永刚
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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