Coal and biomass co-liquefaction technology
A biomass and process technology, applied in the field of coal and biomass co-smelting process, can solve the problems of low liquefaction efficiency, limited coal powder content, unrealized coal, biomass and oil mixing production technology, etc., and achieve fluidity High, reduce hydrogen consumption, improve the effect of smooth operation
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Embodiment 1
[0074] A co-liquefaction process of coal and biomass, comprising the steps of:
[0075] Lignite was taken, dried and dehydrated, crushed to a median particle size of 50 μm, and then extruded at 30° C. with a molding pressure of 15 MPa to obtain lignite compressed material. The compressed lignite material is pulverized to obtain a pulverized lignite material with a particle size of 30 μm. The above-mentioned pulverized lignite material and the amorphous ferric oxyhydroxide after sulfidation treatment in the reactor are added to the mixture of liquid feces and waste engine oil to form a biomass kerosene slurry, and hydrogen gas is passed into the biomass kerosene slurry to generate reaction, and control the reaction pressure to 16MPa and the reaction temperature to 480°C to finally obtain bio-oil.
Embodiment 2
[0077] A co-liquefaction process of coal and biomass, comprising the steps of:
[0078] Straw pretreatment:
[0079] (1) Take the straw, dry it for dehydration, crush it to a median particle size of 300 μm, and then send it to a briquetting machine or plodder for extrusion molding at 60° C. with a molding pressure of 2 MPa to obtain a compressed straw material.
[0080] (2) Send the straw compressed material into a hammer mill for crushing to obtain straw crushed material for use.
[0081] Pretreatment of coal raw materials:
[0082] (1) Take lignite, dry it for dehydration, crush it to a median particle size of 100 μm, and then send it to a briquetting machine for extrusion molding at 30° C. at a molding pressure of 5 MPa to obtain lignite compressed material.
[0083] (2) Send the compressed lignite material into a ball mill for pulverization to obtain a pulverized lignite material with a median particle size of 50 μm for use.
[0084] Preparation and liquefaction of...
Embodiment 3
[0093] A co-liquefaction process of coal and biomass, comprising the steps of:
[0094] Pretreatment of biomass raw materials:
[0095] (1) Get the reed, dry and dehydrate it, and then send it to the jet mill for crushing to obtain the primary crushed material of the reed, with a particle size of D 50 is 200 μm.
[0096] (2) Send the reed primary pulverized material into a briquetting machine or a plodder for extrusion molding at 50° C. with a molding pressure of 3 MPa to obtain a reed compressed material.
[0097] (3) The reed compressed material is sent into the jet mill, and secondary pulverization is carried out to obtain the reed secondary pulverization material, particle size D 50 40 μm, set aside.
[0098] Pretreatment of coal raw materials:
[0099] (1) Take Shendong long-flame coal, dry and dehydrate it, and then send it to a ball mill for crushing to obtain primary crushed material of Shendong long-flame coal, particle size D 50 is 80 μm.
[0100] (2) Send th...
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