Method for directly liquefying coal
A coal liquefaction, direct technology, applied in the preparation of liquid hydrocarbon mixture, petroleum industry and other directions, can solve the problem of large consumption of alcohol, and achieve the effects of low raw material cost, reduced methanol consumption and low reaction pressure
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Embodiment 1
[0064] A method for direct liquefaction of coal is carried out according to the following steps:
[0065] Step 1, pulverizing and grinding the coal until the particle size is no more than 300 mesh;
[0066] Step 2, mixing the pulverized coal, solvent, and pyrolysis catalyst according to the proportion, fully stirring with a stirring device, performing coal swelling treatment and making coal slurry;
[0067] Step 3: Add the coal slurry to the thermal flash reaction section and heat it together with the circulating gas to 360°C to make the pyrolysis material;
[0068] Step 4: Add the cracking catalyst and co-catalyst to the feeder in proportion, mix well and heat to 410°C;
[0069] Step 5. The feeder continuously feeds the high-temperature cracking catalyst and high-temperature co-catalyst into the pyrolysis material in the thermal flash reaction section at a constant speed, so that it can react directly, and enter the pyrolysis reactor by self-pressure under the condition ...
Embodiment 2
[0073] A method for direct liquefaction of coal is carried out according to the following steps:
[0074] Step 1: pulverizing and grinding the coal until the particle size is not greater than 300 mesh;
[0075] Step 2, mixing the pulverized coal, solvent, and pyrolysis catalyst according to the proportion, fully stirring with a stirring device, performing coal swelling treatment and making coal slurry;
[0076] Step 3: Add the coal slurry to the thermal flash reaction section and heat it together with the circulating gas to 260°C to make the pyrolysis material;
[0077] Step 4: Add the cracking catalyst and co-catalyst to the feeder in proportion, mix well and heat to 280°C;
[0078] Step 5. The feeder continuously feeds the high-temperature cracking catalyst and high-temperature co-catalyst into the pyrolysis material in the thermal flash reaction section at a constant speed, so that it can react directly, and enter the pyrolysis reactor by self-pressure under the condit...
Embodiment 3
[0082] A method for direct liquefaction of coal is carried out according to the following steps:
[0083] Step 1: pulverizing and grinding the coal until the particle size is not greater than 300 mesh;
[0084] Step 2, mixing the pulverized coal, solvent, and pyrolysis catalyst according to the proportion, fully stirring with a stirring device, performing coal swelling treatment and making coal slurry;
[0085] Step 3: Add the coal slurry to the thermal flash reaction section and heat it together with the circulating gas to 380°C to make the pyrolysis material;
[0086] Step 4: Add the cracking catalyst and co-catalyst to the feeder in proportion, mix well and heat to 410°C;
[0087] Step 5. The feeder continuously feeds the high-temperature cracking catalyst and high-temperature co-catalyst into the pyrolysis material in the thermal flash reaction section at a constant speed, so that it can react directly, and enter the pyrolysis reactor by self-pressure under the condit...
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