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One-pot liquefaction process of biomass

A technology for biomass and pretreatment of biomass, applied in the field of biomass one-pot liquefaction process, can solve the problems of small amount of biomass conveyed by pump, low biomass conversion rate, unstable transportation, etc., and achieve smooth operation. and conveying, reducing industrial costs and energy consumption, the effect of volume reduction

Active Publication Date: 2020-03-17
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

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the shortcomings of the existing biomass liquefaction process, such as the pump’s delivery of biomass is small, the transportation is not stable, the conversion rate of biomass is low, and the energy consumption is high. One-pot liquefaction process of substances

Method used

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  • One-pot liquefaction process of biomass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] A one-pot liquefaction process of biomass, comprising the steps of:

[0082] Biomass Pretreatment

[0083] Put the wheat straw and corn straw into the drier and dry at 50°C for 5h until the water content is lower than 2wt%, and then send them into the superfine pulverizer for primary crushing, the median particle size after primary crushing is 100 μm, and then the primary crushing The crushed wheat straw and corn straw were sent to the plodder for compression extrusion molding at a temperature of 30°C and a pressure of 3 MPa, and then a secondary crushing treatment. The median particle size after the secondary crushing was 30 μm. The bulk density of wheat straw and corn straw after secondary crushing is 500kg / m 3 ,spare.

[0084] Catalyst preparation

[0085] S1. After the biochar is acidified, a biochar carrier is obtained;

[0086] S2. Vibrating and grinding the oxide of Mo and the above-mentioned biomass carbon carrier to obtain the biomass carbon loaded with ...

Embodiment 2

[0095] A one-pot liquefaction process of biomass, comprising the steps of:

[0096] Biomass Pretreatment

[0097] Put the rice straw and reed straw into the dryer and dry at 70°C for 3 hours until the water content is lower than 2wt%, and then send them into the superfine pulverizer for primary crushing, the median particle size after primary crushing is 300 μm, and then the primary crushing The crushed rice straw and reed straw were fed into the plodder for compression extrusion molding at a temperature of 60°C and a pressure of 0.5 MPa, and then secondary crushing was carried out. The median particle size after secondary crushing was 50 μm. The bulk density of rice straw and reed straw after secondary crushing is 400kg / m 3 ,spare.

[0098] Catalyst preparation

[0099] S1. After the biochar is acidified, a biochar carrier is obtained;

[0100] S2. After the oxides of W, the oxides of Fe and the above-mentioned biomass charcoal carrier are subjected to plane grinding a...

Embodiment 3

[0109] A one-pot liquefaction process of biomass, comprising the steps of:

[0110] Biomass Pretreatment

[0111] Send the cotton stalks into the drier and dry them at 60°C for 4 hours until the water content is lower than 2wt%, and then send them into the superfine pulverizer for primary crushing. The median particle size after primary crushing is 210 μm, and then the primary crushed Cotton stalks are fed into a briquetting machine for compression extrusion molding at a temperature of 55°C and a pressure of 2.1 MPa, and then secondary crushing is carried out. The median particle size after secondary crushing is 40 μm, and the The bulk density of cotton straw is 440kg / m 3 ,spare.

[0112] Preparation of biochar loaded with Mo oxide and Pd oxide

[0113] S1. After the biochar is acidified, a biochar carrier is obtained;

[0114] S2. Vibrating and grinding Mo oxides, Pd oxides, and the above-mentioned biomass charcoal carrier to obtain biochar with a particle size of 120-...

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Abstract

The invention relates to the field of biological energy, in particular to a one-pot liquefaction technology for biomass. The technology comprises steps as follows: slurry containing a catalyst, a vulcanizing agent and biomass is prepared firstly, and hydrogen is introduced into the slurry for a reaction; the slurry is prepared through steps as follows: straw is subjected to drying, primary smashing, compressing and secondary smashing in sequence and then is mixed with the catalyst and the vulcanizing agent, a mixture is obtained and added to an oil product to be ground into slurry, and the biomass slurry with straw concentration being 30wt%-60wt% is prepared. The straw is subjected to first compression and later secondary smashing initiatively with the treatment technology, so that size ofthe straw is substantially reduced, dispersion of the straw into the oil product is facilitated, content of the straw in the oil product can be increased, concentration of reaction materials is increased, delivery amount of the biomass in unit time by a pump is increased, stable operation and delivery of the pump are guaranteed, and meanwhile, conversion rate of the biomass is increased.

Description

technical field [0001] The invention relates to the technical field of bioenergy conversion, in particular to a one-pot liquefaction process of biomass. Background technique [0002] Coal, crude oil, natural gas, oil shale and other fossil non-renewable energy sources are becoming increasingly exhausted with the rapid development of social economy, and the CO produced after their combustion 2 , SO 2 , NO x The increasingly serious environmental pollution caused by such pollutants has forced human beings to seriously consider ways to obtain energy and methods to improve the environment. Biomass is a kind of renewable energy, which has huge potential and advantages in meeting energy demand, reducing environmental pollution, and improving energy structure. Biomass refers to all organic substances formed by photosynthesis of green plants that can be directly or indirectly used , including plants, animals, microorganisms and their excretion and metabolites, which are renewable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00C10G1/06C10G1/08
CPCC10G1/006C10G1/065C10G1/083C10G1/086C10G2300/1011
Inventor 林科李林郭立新
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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