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

Method of preparing bio-oil through raw material pretreatment and hydrothermal liquefaction

A hydrothermal liquefaction and combined preparation technology, which is applied in the fields of environmental protection and new energy, can solve the problems of complex oil composition and low bio-oil yield, and achieve the effect of saving energy consumption

Inactive Publication Date: 2018-10-16
SHENYANG AEROSPACE UNIVERSITY
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to aim at the situation that the bio-oil yield obtained by the existing sludge hydrothermal liquefaction method is low and the oil composition is too complicated, combining CTAB, AEO 9 The removal of bound water in sludge by two-step pretreatment with subcritical water and the modification of bio-oil by co-solvent methanol have developed a new method for the joint preparation of biofuels by chemical pretreatment-hydrothermal liquefaction

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 of preparing bio-oil through raw material pretreatment and hydrothermal liquefaction
  • Method of preparing bio-oil through raw material pretreatment and hydrothermal liquefaction
  • Method of preparing bio-oil through raw material pretreatment and hydrothermal liquefaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Mix 50 g of municipal sludge with a moisture content of 85% and 0.75 g of surfactant, wherein: the dry basis sludge raw material: the mass ratio of surfactant = 1:0.1, and the surfactant is CTAB: AEO 9 =3:7, to obtain uniformly mixed sludge;

[0039] (2) Stir the sludge homogeneously mixed in step (1) with a mechanical agitator at a rate of 200r / min for 1h to obtain sludge pretreated by surfactant;

[0040] (3) Mix 50.75g of sludge pretreated with surfactant, 150ml of deionized water, and 75ml of methanol in step (2) to make a slurry, wherein: dry basis of sludge pretreated with surfactant: solvent The mass ratio of = 1:10, the volume ratio of solvent:cosolvent: 1:0.5;

[0041] (4) Add the slurry obtained in step (3) into the intermittent high-temperature and high-pressure reaction kettle, replace the air in the kettle with high-alcohol nitrogen after sealing the reaction, and heat the kettle body at 10°C / min to 180°C for 15 minutes;

[0042] (5) Continue to heat ...

Embodiment 2

[0050] (1) Mix 50g of municipal sludge with a moisture content of 85% and 1.125g of surfactant, wherein: dry basis sludge raw material: mass ratio of surfactant = 1:0.15, surfactant is CTAB: AEO 9 =3:7, to obtain uniformly mixed sludge;

[0051] (2) Stir the sludge homogeneously mixed in step (1) with a mechanical agitator at a rate of 200r / min for 1h to obtain sludge pretreated by surfactant;

[0052] (3) Mix 51.125g of sludge pretreated with surfactant, 150ml of deionized water, and 75ml of methanol in step (2) to make a slurry, wherein: dry basis of sludge pretreated with surfactant: solvent The mass ratio of = 1:10, the volume ratio of solvent:cosolvent: 1:0.5;

[0053] (4) Add the slurry obtained in step (3) into a batch-type high-temperature and high-pressure reaction kettle, replace the air in the kettle with high-alcohol nitrogen after sealing the reaction, and heat the kettle body at 10°C / min to 190°C for 20 minutes;

[0054] (5) Continue to heat the reactor to 340°...

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 belongs to the technical field of environmental protection and new energy and relates to a novel method of improving quality of biological fuel produced by a biomass hydrothermal liquefaction method, in particular to a method of preparing bio-oil through raw material pretreatment and hydrothermal liquefaction. In order to solve the problems of lower bio-oil productivity and too complicated oil ingredients of the existing sludge hydrothermal liquefaction method, the novel method of preparing biological fuel through chemical pretreatment-hydrothermal liquefaction is developed according to a removal effect of two-step pretreatment of CTAB, AEO9 and subcritical water on bound water in sludge and a modification effect of a methanol cosolvent on the bio-oil.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and new energy, and in particular relates to a new method for improving the quality of biomass hydrothermal liquefaction biofuel, in particular to a method for preparing bio-oil through raw material pretreatment and hydrothermal liquefaction. Background technique [0002] With the continuous increase of my country's sewage treatment capacity, the output of sludge, a by-product of sewage treatment, is also increasing (the annual output of sludge exceeds 75 million tons). Sludge treatment and disposal are expensive and typically account for more than half of the operating costs of a wastewater treatment plant. Sludge contains proteins, polysaccharides, lipids, water-soluble organic matter, etc. As an excellent and renewable alternative carbon source for future biorefinery practices, it has great potential in the sustainable production of fuels. [0003] Pyrolysis and liquefaction a...

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
IPC IPC(8): C10G1/00C02F11/00C02F101/20
CPCC10G1/002C02F11/00C02F11/002C02F2101/20C10G2300/1003
Inventor 杨天华刘兴双李润东李秉硕王伟云
Owner SHENYANG AEROSPACE UNIVERSITY
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