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Biomass liquefaction method

A technology for solid biomass and products, which is applied in the preparation of liquid hydrocarbon mixtures, petroleum industry, etc., to achieve the effect of improving the liquefaction rate of solid biomass

Active Publication Date: 2015-11-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of the present invention can greatly improve the liquefaction rate of solid biomass without adding a catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0033] Add 30g of poplar wood powder (20-40 mesh in size) dried at 120°C, 100g of water, and 50g of palmitic acid into a 500ml autoclave. After sealing, raise the temperature to 330°C at a stirring speed of 600RPM, keep it warm for 45min, and stop Heating and cooling down to room temperature naturally. After the solid residue was separated, the weight of the remaining liquid was 161.2 g. After deducting the weight of the added water and palmitic acid, the weight of the liquefied product of poplar wood powder was 11.2 g, that is, the liquefaction rate of poplar wood powder was 37.3%.

Embodiment 12

[0035] Add 30g of poplar wood powder (20-40 meshes in size) dried at 120°C, 100g of water, and 57g of palmitic alcohol into a 500ml autoclave. After sealing, raise the temperature to 330°C at a stirring speed of 600RPM, keep it warm for 45min, and stop Heating and cooling down to room temperature naturally. After the solid residue was separated, the weight of the remaining liquid was 167.9 g. After deducting the weight of the added water and palmitic alcohol, the weight of the liquefied product of poplar wood powder was 10.9 g, that is, the liquefaction rate of poplar wood powder was 36.3%.

Embodiment 13

[0037] Add 30g of poplar wood powder (20-40 meshes in size) dried at 120°C, 100g of water, and 61g of palmaldehyde into a 500ml autoclave. After sealing, raise the temperature to 330°C at a stirring speed of 600RPM, keep it warm for 45min, and stop Heating and cooling down to room temperature naturally. After the solid residue was separated, the weight of the remaining liquid was 171.5 g. After deducting the weight of the added water and palmaldehyde, the weight of the liquefied product of poplar wood powder was 10.5 g, that is, the liquefaction rate of poplar wood powder was 35.0%.

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PUM

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Abstract

The invention discloses a solid biomass liquefaction method, which comprises the following steps of adding a solid biomass, a liquefaction solvent and a fat-type compound into a high-pressure container for liquefaction at 200 to 450 DEG C, performing solid-liquid separation on a product after reaction, and collecting a liquid product. According to the method, the fat-type compound is added into the liquefaction solvent to form a mixed solvent, so that the solid biomass liquefaction rate can be greatly increased even without a catalyst.

Description

technical field [0001] The invention relates to a method for liquefying solid biomass. Background technique [0002] Biomass is the only renewable carbon resource that can be converted into conventional liquid petroleum fuels and other chemicals, and thermochemical high-efficiency conversion and utilization technology is the most important way to develop and utilize biomass energy. Therefore, biomass high-pressure liquefaction technology has received many researchers' attention. High-pressure liquefaction refers to the process of liquefying biomass to produce liquid products in a solvent medium under the conditions of a reaction temperature of 200-400°C and a reaction pressure of 5-25MPa. During high-pressure liquefaction, catalysts and H 2 , CO and other reducing gases to increase the liquefaction rate and improve the properties of liquid products. [0003] At present, the most commonly used high-pressure liquefaction solvent is water, and others include low-carbon alcoh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00
Inventor 胡见波杜泽学闵恩泽
Owner CHINA PETROLEUM & CHEM CORP
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