Multistage activated carbon adsorption bed system based on selective adsorptive purification theory and preparation method of multistage activated carbon adsorption bed system
An activated carbon adsorption and selectivity technology, applied in chemical instruments and methods, adsorbed water/sewage treatment, inorganic chemistry, etc., can solve the problems of slow adsorption rate of natural macromolecular organic matter and difficult regeneration of saturated activated carbon, and avoid competitive adsorption. , the effect of improving regeneration efficiency and improving adsorption efficiency
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Embodiment 1
[0040] Example 1, preparation of activated carbon with high mesoporous structure.
[0041] like figure 1 As shown in the figure, the high mesoporous activated carbon suitable for the adsorption of natural macromolecular organic matter uses anthracite as the raw material, pulverizes the anthracite with a ball mill, passes through a 28-40 mesh sieve, and collects the raw material with the required fineness. The granular sodium hydroxide is then pulverized into powder. Then according to the mass ratio of 1:4, the anthracite and potassium hydroxide are uniformly mixed. At the same time, according to the ratio of adding one milliliter of deionized water per gram of potassium hydroxide, the deionized water is added to the mixture of anthracite and potassium hydroxide, so that the mixture becomes muddy. The mixture was then placed in a tubular activation furnace and mixed at 110°C for 12 hours. The placed anthracite was activated at 800°C for 2 hours, and nitrogen was passed throu...
Embodiment 2
[0042] Example 2, preparation of ultra-high microporous structure activated carbon.
[0043] like figure 2 As shown in the figure, high microporous activated carbon suitable for synthesizing small molecular organic matter is made of anthracite as raw material. The granular sodium hydroxide is then pulverized into powder. Then according to the mass ratio of 1:2, the anthracite and potassium hydroxide are uniformly mixed. At the same time, according to the ratio of adding one milliliter of deionized water per gram of potassium hydroxide, the deionized water is added to the mixture of anthracite and potassium hydroxide, so that the mixture becomes muddy. The mixture was then placed in a tubular activation furnace and mixed at 110°C for 12 hours. The placed anthracite was activated at 650°C for 2 hours, and nitrogen was introduced throughout to ensure an inert atmosphere, and the specific nitrogen flow rate was maintained at 400ml / min. Then, the potassium hydroxide on the sur...
Embodiment 3
[0044] Example 3, a multi-stage activated carbon adsorption bed system based on the principle of selective adsorption purification.
[0045] The multi-stage activated carbon adsorption bed system of the present invention includes a first activated carbon adsorption bed 1 arranged in the front section of the adsorption channel and a second activated carbon adsorption bed 2 arranged in the rear section of the adsorption channel. The first activated carbon adsorption bed 1 carries high mesoporous pores Structure activated carbon 3, the second activated carbon adsorption bed 2 carries ultra-high microporous structure activated carbon 4, the high mesoporous structure activated carbon 3 can adsorb and purify natural macromolecular organic matter, and the ultra-high microporous structure activated carbon 4 can adsorb and purify Artificial synthesis of small molecular organics. The high mesoporous structure activated carbon 3 is closely arranged in the first activated carbon adsorptio...
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