Microwave-assisted coal extraction method through ethanol
A microwave-assisted, ethanol technology, applied in the petroleum industry, solid fuel, fuel and other directions, can solve the problems of long extraction time, low efficiency, high energy consumption, etc., and achieve a short extraction time, high efficiency and high economic benefits. Effect
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Embodiment 1
[0035] Such as figure 1 As shown, the microwave-assisted ethanol extraction method of coal of the present invention comprises the following steps:
[0036] Step 1. Coal sample crushing: use a pulverizer to crush the coal sample to be treated and dry it for later use, and the crushed particle size is 150-75 μm. The coal sample to be processed is long-flame coal, specifically long-flame coal that meets the standard GB5751-86 of "China Coal Classification".
[0037] In this embodiment, the coal sample to be processed is specifically Shenfu coal. In actual operation, the coal sample to be treated is pulverized and dried, and stored in a brown bottle for later use.
[0038] Step 2, coal sample demineralization treatment: the pulverized coal sample is subjected to conventional demineralization treatment and dried to obtain a demineralized coal sample. The drying described in this step is carried out in a vacuum drying oven, and the drying temperature is 105±5°C, and the drying ti...
Embodiment 2
[0056] The difference between this embodiment and Embodiment 1 is that the coal sample to be treated in Step 1 is specifically Tongchuan coal.
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