Method for extracting and separating organic matters in carbon-containing residues of coal
A technology for organic matter and residues, which is applied in the field of extraction and separation of coal carbon residues, can solve the problems of long extraction time, high energy consumption, and low extraction efficiency, and achieve the effects of improved extraction efficiency, simple process flow, and low boiling point
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Embodiment 1
[0022] The ethyl acetate and the coal tar residue produced in the coking plant were mixed in an extraction device at a ratio of 1:10kg / L to obtain a mixture; the resulting mixture was subjected to ultrasonic, microwave, and ultraviolet light synergistic extraction, with an ultrasonic power of 600W and a microwave power of 100W, UV intensity 100µW·cm -2 , the extraction time is 2min. After the extraction is completed, the mixture is quickly separated by centrifugal equipment to obtain raffinate and extract; the extract obtained after separation is distilled in a distillation device to obtain the extractant and coal carbon-containing residue organic matter, and the obtained extractant can be repeated The yield of the obtained extract can reach 19.82%.
Embodiment 2
[0024] Put ethyl acetate and Shenhua coal direct liquefaction residue in an extraction device at a ratio of 1:5 kg / L for mixing to obtain a mixture; the resulting mixture is subjected to ultrasonic microwave ultraviolet light co-extraction, the ultrasonic power is 500W, and the microwave power is 300W , UV intensity 500 µW·cm -2 , the extraction time is 5min. After the extraction is completed, the mixture is quickly separated by centrifugal equipment to obtain raffinate and extract; the extract obtained after separation is distilled in a distillation device to obtain the extractant and coal carbon-containing residue organic matter, and the obtained extractant can be repeated The yield of the obtained extract can reach 11.24%.
Embodiment 3
[0026] The ethyl acetate and the coal tar residue produced by the coking plant were mixed in an extraction device at a ratio of 1:5 kg / L to obtain a mixture; the obtained mixture was subjected to ultrasonic microwave ultraviolet light synergistic extraction, the ultrasonic power was 500W, and the microwave power 200W, UV light intensity 1000µW·cm -2 , the extraction time is 2min. After the extraction is completed, the mixture is quickly separated by centrifugal equipment to obtain raffinate and extract; the extract obtained after separation is distilled in a distillation device to obtain the extractant and coal carbon-containing residue organic matter, and the obtained extractant can be repeated The yield of the obtained extract can reach 19.10%.
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