Method for quick pyrolysis of coal direct liquefaction residues by utilizing microwaves
A technology for direct liquefaction of coal and residues, which is used in the preparation of liquid hydrocarbon mixtures, special forms of dry distillation, and petroleum industry.
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[0021] Example 1
[0022] As shown in Figure 1, the method for using microwave rapid pyrolysis coal to directly liquefy residue is characterized in that, comprising the following steps:
[0023] The first step is to use grinding equipment to pulverize the direct coal liquefaction residue to a particle size of 30mm;
[0024] In the second step, the directly liquefied residue of the pulverized coal is placed in a drying device for drying at 100°C for 20min;
[0025] In the third step, the dried coal liquefaction residue is placed in the microwave pyrolysis reactor, the power is turned on, the microwave frequency for heating is set to 2450MHz, and the temperature is heated to 900°C, and the residence time is 15min to obtain solid coke and pyrolysis gas;
[0026] In the fourth step, the solid coke is collected after being cooled to normal temperature by the water cooling system, and the pyrolysis gas is collected by the primary air cooling system and the secondary liquid phase co...
Example Embodiment
[0027] Embodiment 2
[0028] As shown in Figure 1, the method for using microwave rapid pyrolysis coal to directly liquefy residue is characterized in that, comprising the following steps:
[0029] In the first step, the coal direct liquefaction residue is pulverized to a particle size of 10mm by using grinding equipment;
[0030] In the second step, the directly liquefied residue of the pulverized coal is placed in a drying equipment for drying at 100°C for 30min;
[0031] In the third step, the dried coal liquefaction residue is placed in the microwave pyrolysis reactor, the power is turned on, the microwave frequency for heating is set to 2450MHz, and the temperature is heated to 800°C, and the residence time is 10min to obtain solid coke and pyrolysis gas;
[0032] In the fourth step, the solid coke is collected after being cooled to normal temperature by the water cooling system, and the pyrolysis gas is collected by the primary air cooling system and the secondary liqui...
Example Embodiment
[0033] Embodiment 3
[0034] As shown in Figure 1, the method for using microwave rapid pyrolysis coal to directly liquefy residue is characterized in that, comprising the following steps:
[0035] In the first step, the direct coal liquefaction residue is pulverized to a particle size of 5mm by using grinding equipment;
[0036] In the second step, the directly liquefied residue of the pulverized coal is placed in a drying equipment for drying at 100°C for 40min;
[0037] In the third step, the dried coal liquefaction residue is placed in the microwave pyrolysis reactor, the power is turned on, the microwave frequency for heating is set to 915MHz, and the temperature is heated to 500°C, and the residence time is 5min to obtain solid coke and pyrolysis gas;
[0038] In the fourth step, the solid coke is collected after being cooled to normal temperature by the water cooling system, and the pyrolysis gas is collected by the primary air cooling system and the secondary liquid p...
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