Method for preparing activated carbon adsorbent from coal-oil corefining residue
A technology for preparing activated carbon from kerosene co-refining residues, applied in chemical instruments and methods, other chemical processes, inorganic chemistry, etc., can solve the problems such as the technical report of activated carbon adsorbent that has not yet been reported, the high moisture content of passion fruit peel, and the waste of biological resources. Achieve the effect of optimizing pore structure distribution, good surface adsorption space structure, and improving adsorption performance
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Embodiment 1
[0033] This embodiment includes the following steps:
[0034]Step 1, crushing the kerosene co-refining residue into kerosene co-refining residue particles with a particle size of 1 mm to 3 mm, then blending dried passion fruit peel particles with a particle size of 1 mm to 3 mm according to a mass ratio of 5:1 for conditioning treatment, and then According to the impregnation ratio of 1:3, place it in a KOH solution with a mass concentration of 50%, stir and impregnate it at a speed of 200r / min at room temperature for 2h to obtain a mixture;
[0035] Step 2. Under a nitrogen atmosphere, the mixture obtained in Step 1 was activated once for 30 minutes with a 1000W microwave, then washed with distilled water to neutrality and dried to obtain the activated product I;
[0036] Step 3: crushing part of the activated product I obtained in step 2 until the particle size does not exceed 150 μm, and then performing secondary activation for 15 minutes with 800W microwave under a nitroge...
Embodiment 2
[0043] This embodiment includes the following steps:
[0044] Step 1, crushing the kerosene co-refining residue into kerosene co-refining residue particles with a particle size of 1 mm to 3 mm, then blending dried passion fruit peel particles with a particle size of 1 mm to 3 mm according to a mass ratio of 1:1 for conditioning treatment, and then According to the impregnation ratio of 1:1, it is placed in KOH and K with a mass concentration of 20%. 2 CO 3 In the mixed solution, stir and impregnate at room temperature at a speed of 200r / min for 3h to obtain a mixture; the KOH and K 2 CO 3 KOH and K in the mixed solution 2 CO 3 The mass ratio is 2:1;
[0045] Step 2. Under a nitrogen atmosphere, the mixture obtained in Step 1 was activated once for 60 minutes with a 100W microwave, and then washed with distilled water to neutrality and dried to obtain the activated product I;
[0046] Step 3: crushing part of the activated product I obtained in step 2 until the particle s...
Embodiment 3
[0053] This embodiment includes the following steps:
[0054] Step 1, crushing the kerosene co-refining residue into kerosene co-refining residue particles with a particle size of 1 mm to 3 mm, then blending dried passion fruit peel particles with a particle size of 1 mm to 3 mm according to a mass ratio of 3:1 for conditioning treatment, and then According to the impregnation ratio of 1:2, it is placed in a NaOH solution with a mass concentration of 35%, and stirred and impregnated at a speed of 300r / min at room temperature for 1.5h to obtain a mixture;
[0055] Step 2. Under a nitrogen atmosphere, the mixture obtained in Step 1 was activated once with 600W microwave for 45 minutes, then washed with distilled water to neutrality and dried to obtain the activated product I;
[0056] Step 3: crushing part of the activated product I obtained in step 2 until the particle size does not exceed 150 μm, and then performing secondary activation with 100W microwave for 5 minutes under ...
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Abstract
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