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

Method for preparing biological asphalt from lignocellulose biomass hydrothermal carbon

A technology of lignocellulose and bio-asphalt, which is applied in the field of environmental protection and comprehensive utilization of resources, can solve the problems of high price of asphalt modifiers, obstacles to resource conservation, and aggravated oil resource dependence on pollution and emissions, so as to improve high-temperature performance, combine The effect of stability and huge economic benefits

Active Publication Date: 2020-04-17
FUDAN UNIV
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing asphalt modifiers are expensive
Asphalt comes from petroleum, and a large amount of asphalt will also increase dependence on petroleum resources, generate more pollution and emissions, and hinder the process of building a resource-saving and environment-friendly society

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
  • Method for preparing biological asphalt from lignocellulose biomass hydrothermal carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] After the corn stalks were dried and crushed into powder, 150g and 2250g of water were placed in a 3L Hastelloy hydrothermal reaction kettle, and heated to 300°C, stirring continuously during the heating process. When the temperature of the mixture reaches the preset value of 300° C., keep the reaction for 1 hour and keep stirring. After the reaction was completed, the temperature was cooled down to room temperature, and the obtained product was separated by filtration. The obtained solid was filtered, dried at 80° C. for 12 hours to remove moisture, and hydrothermal charcoal was obtained. Combine the hydrothermal charcoal obtained above with Shell 70#PEN60 / 70 asphalt to prepare bio-asphalt. The specific steps are as follows: heat the base asphalt to 135°C and slowly pour in hydrothermal charcoal with a mass of 2% and 6% base asphalt respectively , and stirred rapidly for 15 minutes; continue to heat the mixture to 165 ° C, and under the action of a high-speed shear, s...

Embodiment 2

[0030] After the wheat straw was dried, crushed into powder, 100g and 2000g of water were taken and placed in a 3L Hastelloy hydrothermal reaction kettle, and heated to 330°C, stirring continuously during the heating process. When the temperature of the mixture reached the preset value of 330° C., the reaction was kept for 1 hour with constant stirring. After the reaction was completed, the temperature was cooled down to room temperature, and the obtained product was separated by filtration. The obtained solid was filtered, dried at 120° C. for 2 hours to remove moisture, and hydrothermal charcoal was obtained. Combine the hydrothermal charcoal obtained above with Shell 70#PEN60 / 70 asphalt to prepare bio-asphalt. The specific steps are as follows: heat the base asphalt to 130°C, slowly pour in hydrothermal charcoal with a mass of 10% base asphalt, and quickly Stir for 20 minutes; continue to heat the mixture to 170° C., and shear for 40 minutes under the action of a high-spee...

Embodiment 3

[0032] After drying Salix twigs, pulverize them into powder, take 200g and 2000g of water and place them in a 3L Hastelloy hydrothermal reaction kettle, and heat them to 250°C, stirring continuously during the heating process. When the temperature of the mixture reached the preset value of 250° C., the reaction was kept for 5 hours with constant stirring. After the reaction was completed, the temperature was cooled down to room temperature, and the obtained product was separated by filtration. The obtained solid was filtered, dried at 105° C. for 5 hours to remove moisture, and hydrothermal charcoal was obtained. Combine the hydrothermal charcoal obtained above with Shell 70#PEN60 / 70 asphalt to prepare bio-asphalt. The specific steps are as follows: heat the base asphalt to 140°C, slowly pour in hydrothermal charcoal with a mass of 4% base asphalt, and quickly Stir for 10 minutes; continue to heat the mixture to 160°C, and shear for 90 minutes under the action of a high-speed...

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 method for preparing biological asphalt from lignocellulose biomass hydrothermal carbon. Hydrothermal carbon is prepared from lignocellulose biomass by utilizing a hydrothermal carbonization technology, and then the hydrothermal carbon is combined with matrix asphalt to prepare the biological asphalt. The biomass comprises corn straw, rice straw or wheat straw and the like. In the reaction process, a mixture of biomass and water is subjected to hydrothermal carbonization at a certain temperature and under a certain pressure to form the hydrothermal carbon, and the hydrothermal carbon is combined with asphalt through high-speed shearing to prepare the biological asphalt. The method is simple in process, a hydrothermal carbon modifier is well combined with the asphalt, the high-temperature performances of the asphalt are improved, and the novel and sustainable method is provided for improvement of an asphalt material and utilization of biomass resources.

Description

technical field [0001] The invention belongs to the fields of environmental protection and resource comprehensive utilization, and in particular relates to a method for preparing a bio-asphalt by hydrothermal carbonization of biomass to prepare an asphalt modifier. The present invention uses lignocellulosic biomass as a raw material to prepare an asphalt modifier process, specifically relates to hydrothermal carbonization of biomass at a certain temperature and pressure, and the formed hydrothermal charcoal is used as an asphalt modifier, and the hydrothermal charcoal is used as an asphalt modifier. Modifier mixed with asphalt method. The preparation process of this process is simple, the hydrothermal carbon modifier is well combined with the asphalt, and the high temperature performance of the asphalt is improved, which provides a new and sustainable method for the improvement of asphalt materials and the utilization of biomass resources. Background technique [0002] Asph...

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): C08L95/00C08K3/04C01B32/05
CPCC08K3/04C08L2201/08C01B32/05C08L95/00
Inventor 张士成胡迟春冯坚强周楠
Owner FUDAN UNIV
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