A multi-stage liquefaction process of biomass

A biomass and process technology, applied in the field of biomass multi-stage liquefaction process, can solve the problems of unstable transportation, high energy consumption, and low pump-to-biomass transportation volume, and achieve volume reduction, industrial cost and energy consumption reduction. , to achieve the effect of smooth operation and transportation

Active Publication Date: 2020-02-28
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the shortcomings of the existing biomass cracking catalytic process, such as the pump’s low delivery volume of biomass, unstable transportation, and high energy consumption, and then provide a multi-stage liquefaction of biomass craft

Method used

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  • A multi-stage liquefaction process of biomass
  • A multi-stage liquefaction process of biomass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A multi-stage liquefaction process for biomass, comprising the steps of:

[0059] Biomass Pretreatment

[0060] Put the palm oil residue into the drier and dry at 80°C for 6h until the water content is lower than 2wt%, and then send it into the superfine pulverizer for primary crushing. The median particle size after primary crushing is 100 μm, and then the primary crushing The palm oil residue is sent to the plodder for compression extrusion molding at a temperature of 40 °C and a pressure of 5 MPa, and then for secondary crushing. The median particle size after secondary crushing is 30 μm. The bulk density of the final palm oil residue is 1600kg / m 3 ,spare.

[0061] Preparation of the first catalyst

[0062] (1) taking biochar as the first biochar carrier;

[0063] (2) loading iron oxide on the above-mentioned first biomass charcoal carrier, and performing sulfuration treatment to prepare the first catalyst.

[0064] The concrete method that iron oxide is load...

Embodiment 2

[0079] A multi-stage liquefaction process for biomass, comprising the steps of:

[0080] Biomass Pretreatment

[0081] Send the linseed oil residue and peanut oil residue into a drier and dry at 110°C for 2 hours until the water content is lower than 2wt%, and then send them into an ultrafine pulverizer for primary crushing. The median particle size after primary crushing is 300 μm, and then The primary crushed linseed oil residue and peanut oil residue are sent to the plodder for compression extrusion molding at a temperature of 60°C and a pressure of 3 MPa, and then secondary crushing, the median particle size after secondary crushing is 50 μm, The bulk density of linseed oil residue and peanut oil residue after secondary crushing is 1500kg / m 3 ,spare.

[0082] Preparation of the first catalyst

[0083] (1) taking biochar as the first biochar carrier;

[0084] (2) Loading iron oxyhydroxide on the above-mentioned first biomass charcoal carrier, and performing sulfurati...

Embodiment 3

[0100] A multi-stage liquefaction process for biomass, comprising the steps of:

[0101] Biomass Pretreatment

[0102] Put saponin oil residue and rapeseed oil residue into a drier, dry at 100°C for 3 hours until the water content is lower than 2wt%, and then send them into an ultrafine pulverizer for primary crushing. The median particle size after primary crushing is 200 μm, Then the saponin oil residue and rapeseed oil residue after primary crushing are sent to a briquetting machine for compression extrusion molding at a temperature of 50°C and a pressure of 4MPa, and then secondary crushing is carried out. The particle size is 40μm, and the bulk density of saponin oil residue and rapeseed oil residue after secondary crushing is 1560kg / m 3 ,spare.

[0103] Preparation of the first catalyst

[0104] (1) taking biochar as the first biochar carrier;

[0105] (2) Loading iron hydroxide and iron oxide on the above-mentioned first biomass charcoal carrier, and performing s...

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Abstract

The invention relates to the field of bioenergy, in particular to a multi-stage liquefaction process of biomass. Preparation of slurry of the biomass comprises the steps of: drying vegetable oil residues, then performing initial pulverizing, compressing and secondary pulverizing sequentially, then mixing the pulverized product with a first catalyst to obtain a mixture, adding the mixture into an oil product, and performing grinding and slurrying to obtain the slurry with the concentration of the vegetable oil residues being 50-65% by weight. The treatment process during which first compressionand then secondary pulverizing are performed on the vegetable oil residues is adopted for the first time, and the loose vegetable oil residues undergo rearrangement, mechanical deformation and otherstages by compressing the biomass, so that the volume of the vegetable oil residues is reduced greatly, the porosity of the vegetable oil residues is thus reduced, the density and specific gravity ofthe vegetable oil residues are increased, and dispersion of the vegetable oil residues in the oil product is facilitated; furthermore, the content of the vegetable oil residues in the oil product canbe increased, the concentration of a reaction material is increased, the conveying amount of biomass per unit time by a pump is increased, and smooth operation and conveying of the pump are ensured.

Description

technical field [0001] The invention relates to the field of bioenergy, in particular to a multistage liquefaction process of biomass. Background technique [0002] Biomass in a broad sense refers to all organic substances formed directly or indirectly by photosynthesis of green plants, including plants, animals, microorganisms and their excretion and metabolites. Biomass in a narrow sense includes palm oil residue, soybean oil residue, and peanut oil residue , saponin oil residue, linseed oil residue and other vegetable oil residue and plant straw. Biomass is renewable, low-pollution and widely distributed. Therefore, from the perspective of energy security and environmental protection, the development and utilization of biomass has become the strategic focus of the current development of renewable energy. [0003] Biomass liquefaction technology is an important part of the utilization of biomass resources. The liquefaction mechanism of biomass is as follows: biomass is fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/06C10G1/08
CPCC10G1/065C10G1/086C10G2300/1007C10G2300/1011C10G2300/70
Inventor 林科李林郭立新
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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