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Process for producing fuel oil and chemical raw materials by utilizing coal and biomass

A chemical raw material and biomass technology, applied in the field of co-smelting of coal and biomass, can solve problems such as low liquefaction efficiency, unrealized coal, biomass and oil mixing production technology, limited coal powder content, etc.

Active Publication Date: 2018-07-06
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] The technical problem to be solved by the present invention is to overcome the problem of low liquefaction efficiency caused by the limited coal powder content of coal slurry in the prior art, and further overcome the lack of coal, biomass and oil in the prior art on this basis. The defects of the mixing production technology, and then provide a process of using coal and biomass to produce fuel oil and chemical raw materials with low hydrogen consumption and high liquefaction efficiency

Method used

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  • Process for producing fuel oil and chemical raw materials by utilizing coal and biomass

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Experimental program
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Effect test

Embodiment 1

[0095] The first catalyst described in the present embodiment and the second catalyst preparation method comprise the steps:

[0096] Preparation of the first catalyst:

[0097] (1) selecting biochar as the first biochar carrier;

[0098] (2) Loading the first active component on the first biomass carbon carrier to prepare the first catalyst.

[0099] 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;

[0100] 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, a...

Embodiment 2

[0105] A process for producing fuel oil and chemical raw materials by utilizing coal and biomass, comprising the following steps:

[0106] Pretreatment of coal raw materials:

[0107] (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 15 MPa to obtain lignite compressed material.

[0108] (2) Send the compressed lignite material into a ball mill for pulverization to obtain a pulverized lignite material with a median particle size of 45 μm for use.

[0109] Preparation and liquefaction of biomass kerosene slurry:

[0110] 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 mixed oil of animal oil and rancid oil to form the biomass kerosene slurry, Pass hydrogen gas into the biomass kerosene slurry to react, and control...

Embodiment 3

[0114] A process for producing fuel oil and chemical raw materials by utilizing coal and biomass, comprising the following steps:

[0115] Pretreatment of biomass raw materials:

[0116] (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 150 μm.

[0117] (2) Send the reed primary pulverized material into a briquetting machine or a plodder for extrusion molding at a molding pressure of 4 MPa to obtain a reed compressed material.

[0118] (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 35 μm, ready for use.

[0119] Pretreatment of coal raw materials:

[0120] (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 Shend...

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Abstract

The invention relates to the technical field of clean energy, and in particular relates to a co-processing process of coal and biomass. The invention creatively realizes mixing and liquefaction of thecoal, the biomass and oil for the first time. ''Crushing + compressing + re-crushing'' treatment is performed on the coal and biomass raw materials, a slurry is prepared, a biomass kerosene slurry which has a high solid content and can be conveyed smoothly by a pump is successfully obtained, and therefore waste oil with high viscosity which cannot be used as a liquefaction solvent of the coal andthe biomass in the prior art can also be utilized. According to the process provided by the invention, primary cracking is performed on the coal and the biomass, a hydrogenation reaction is performed, deep cracking is performed, and a hydrogenation reaction is performed, so that transformation from the coal and the biomass to fuel oil and chemical raw materials is realized, the conversion rate ofthe coal and the biomass can reach 90-99%, the yield of the fuel oil can reach 60-80%, and the content of residues is less than 3%.

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...

Claims

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Application Information

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IPC IPC(8): C10G1/06C10G1/08B01J23/745B01J23/30
CPCB01J23/002B01J23/30B01J23/745C10G1/065C10G1/086C10G2300/10C10G2300/1003C10G2300/1011C10G2300/70
Inventor 林科李林郭立新
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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