A process for producing fuel oil and chemical raw materials using coal and biomass

Abstract

The invention relates to the technical field of a clean energy source, in particular to a coal and biomass mixing process. Firstly, coal and biomass raw materials are subjected to treatment of compression, crushing and secondary crushing; then, slurry is prepared; biomass water coal slurry with high solid content and capable of being stably conveyed by a pump is successfully obtained. The processhas the advantages that coal and biomass are firstly subjected to hydrolysis; the hydrolyzed product is sequentially subjected to primary cracking, hydrogenation reaction, deep cracking and hydrogenation reaction, so that the conversion of coal and biomass into fuel oil and chemical raw materials is realized; the coal and biomass conversion rate can reach 95 to 99 percent; the yield of the fuel oil can reach about 65 to 85 percent; the green coke quantity is below 4 percent.

Description

technical field

[0001] The invention relates to the technical field of clean energy, in particular to a co-smelting process of coal and biomass. Background technique

[0002] At present, my country uses coal as the main energy source, and the traditional coal utilization method is combustion, but the problem of air pollution caused by coal combustion has become increasingly serious; moreover, the quality of coal in my country has declined year by year, which has increased the proportion of raw coal washed year after year, and coal washing wastewater has brought severe water pollution. Severe environmental problems have made the adjustment of energy structure one of the important tasks of my country's energy development. However, my country's own energy resource storage is poor in oil and rich in coal, and it already needs to rely on a large amount of oil imports every year to meet the needs of production and development. If the country's energy structure is adjusted by reduc...

Examples

Embodiment 1

[0090] Preparation of the first catalyst:

[0091] (1) selecting biochar as the first biochar carrier;

[0092] (2) Loading the first active component on the first biomass carbon carrier to prepare the first catalyst.

[0093] Wherein, the first active component is iron oxide, and the first active component accounts for 50% of the mass of the first biochar carrier in terms of the mass of metal elements;

[0094] The specific steps of loading in step (2) are: mixing the aqueous solution of the first active component with the first biochar carrier to prepare a suspension, adding a precipitant to precipitate the first active component on the first biochar carbon carrier, then washed and dried to obtain the first catalyst; wherein, the precipitating agent is an aqueous solution of at least one of ammonia water or alkali metal carbonates, bicarbonates, and hydroxides, and the precipitation The process temperature is controlled at 90°C and the pH value is 9.

[0095] Preparati...

Embodiment 2

[0099] A process for producing fuel oil and chemical raw materials by utilizing coal and biomass, comprising the following steps:

[0100] Pretreatment of coal raw materials:

[0101] (1) Take lignite, dry and dehydrate it, pulverize to a median particle size of 50 μm, and then send it to a briquetting machine for extrusion molding at a molding pressure of 5 MPa to obtain lignite compressed material.

[0102] (2) Send the compressed lignite material into a ball mill for pulverization to obtain a pulverized lignite material with a median particle size of 30 μm for use.

[0103] Preparation and liquefaction of biomass coal water slurry:

[0104] After deashing the above-mentioned pulverized lignite material, mix it with biochar loaded with iron oxyhydroxide and a vulcanizing agent to obtain a mixture, and add the mixture to the mixture of animal oil and water to form the biomass coal-water slurry. Hydrogen gas is introduced into the biomass coal-water slurry to react, and ...

Embodiment 3

[0108] A process for producing fuel oil and chemical raw materials by utilizing coal and biomass, comprising the following steps:

[0109] Pretreatment of biomass raw materials:

[0110] (1) Take the reed, dry and dehydrate it until the water content is 1wt%, and then send it into the jet mill for crushing to obtain the primary crushed reed material with a particle size of D 50 is 200 μm.

[0111] (2) Send the reed primary pulverized material into a briquetting machine or a plodder for extrusion molding with a molding pressure of 3 MPa to obtain a reed compressed material.

[0112] (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.

[0113] Pretreatment of coal raw materials:

[0114] (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 Shendon...

technical field

[0001] The invention relates to the technical field of clean energy, in particular to a co-smelting process of coal and biomass. Background technique

[0002] At present, my country uses coal as the main energy source, and the traditional coal utilization method is combustion, but the problem of air pollution caused by coal combustion has become increasingly serious; moreover, the quality of coal in my country has declined year by year, which has increased the proportion of raw coal washed year after year, and coal washing wastewater has brought severe water pollution. Severe environmental problems have made the adjustment of energy structure one of the important tasks of my country's energy development. However, my country's own energy resource storage is poor in oil and rich in coal, and it already needs to rely on a large amount of oil imports every year to meet the needs of production and development. If the country's energy structure is adjusted by reduc...

Examples

Embodiment 1

[0090] Preparation of the first catalyst:

[0091] (1) selecting biochar as the first biochar carrier;

[0092] (2) Loading the first active component on the first biomass carbon carrier to prepare the first catalyst.

[0093] Wherein, the first active component is iron oxide, and the first active component accounts for 50% of the mass of the first biochar carrier in terms of the mass of metal elements;

[0094] The specific steps of loading in step (2) are: mixing the aqueous solution of the first active component with the first biochar carrier to prepare a suspension, adding a precipitant to precipitate the first active component on the first biochar carbon carrier, then washed and dried to obtain the first catalyst; wherein, the precipitating agent is an aqueous solution of at least one of ammonia water or alkali metal carbonates, bicarbonates, and hydroxides, and the precipitation The process temperature is controlled at 90°C and the pH value is 9.

[0095] Preparati...

Embodiment 2

[0099] A process for producing fuel oil and chemical raw materials by utilizing coal and biomass, comprising the following steps:

[0100] Pretreatment of coal raw materials:

[0101] (1) Take lignite, dry and dehydrate it, pulverize to a median particle size of 50 μm, and then send it to a briquetting machine for extrusion molding at a molding pressure of 5 MPa to obtain lignite compressed material.

[0102] (2) Send the compressed lignite material into a ball mill for pulverization to obtain a pulverized lignite material with a median particle size of 30 μm for use.

[0103] Preparation and liquefaction of biomass coal water slurry:

[0104] After deashing the above-mentioned pulverized lignite material, mix it with biochar loaded with iron oxyhydroxide and a vulcanizing agent to obtain a mixture, and add the mixture to the mixture of animal oil and water to form the biomass coal-water slurry. Hydrogen gas is introduced into the biomass coal-water slurry to react, and ...

Embodiment 3

[0108] A process for producing fuel oil and chemical raw materials by utilizing coal and biomass, comprising the following steps:

[0109] Pretreatment of biomass raw materials:

[0110] (1) Take the reed, dry and dehydrate it until the water content is 1wt%, and then send it into the jet mill for crushing to obtain the primary crushed reed material with a particle size of D 50 is 200 μm.

[0111] (2) Send the reed primary pulverized material into a briquetting machine or a plodder for extrusion molding with a molding pressure of 3 MPa to obtain a reed compressed material.

[0112] (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.

[0113] Pretreatment of coal raw materials:

[0114] (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 Shendon...

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