Zhengda columnar activated carbon is the one that purifies our water quality and filters out the freshest air. The large coal columnar activated carbon mainly includes coal columnar activated carbon and wood columnar activated carbon. Columnar activated carbon is where you purify our water and filter out the freshest air.
Columnar activated carbon is the one that purifies our water quality and filters out the freshest air. The large coal-like columnar activated carbon is made of high-quality wood chips and coconut shells, which are crushed, mixed, extruded, formed, dried, charred and activated. Columnar activated carbon is lower than conventional coal-based columnar charcoal, with less impurities and CTC is dominant. Mainly used for 1, gas phase adsorption 2, organic solvent recovery (benzene gas toluene, xylene, recovery of acetone in the cellulose acetate industry, recovery of CS2 in viscose staple fiber production, etc.) 3. Removal of impurities and harmful gases, This technology has reached a first-class level in China. Ordinary 4mm activated carbon, the adsorption of CTC is only 60%, not more than 70%, and the adsorption rate of CTC by 4mm wood columnar activated carbon produced by our company reaches 100%, which makes up for the shortage of domestic CTC adsorption rate. International first-class standards! Completely replace imported products.
Zhengda coal-type columnar activated carbon is made of high-quality anthracite as raw material, refined by advanced technology, and has black cylindrical particles. It has reasonable pore structure, good adsorption performance, high mechanical strength, easy repeated regeneration and low cost. It is used for purification of toxic gases, waste gas treatment, purification of industrial and domestic water, and solvent recovery.
Main technical index analysis project of Zhengda coal columnar activated carbon Test data Analysis item Test data iodine value >800mg/g Strength >92%
Specific surface area >850m2/g Methylene blue value 120-150mg/g
Total pore volume >0.8cm3/g Residual chlorine adsorption rate ≥85%
Filling density 0.45-0.55g/cm3
Zhengda coal-type columnar activated carbon is applied to coal-based columnar activated carbon for purification of toxic gases, waste gas treatment, purification of industrial and domestic water, and solvent recovery.
Columnar activated carbon is used in various aspects of industrial and agricultural production, such as alkali-free deodorization (refined desulfurization), ethylene demineralized water (refined filler), catalyst carrier (palladium, platinum, rhodium, etc.), water purification and sewage treatment in the petrochemical industry; Water treatment and protection of power plants in the industry; chemical catalysts and carriers in the chemical industry, decolorization and refining of gas purification, solvent recovery and oils; refining and decolorization of beverages, alcohol, MSG and food in the food industry; gold in the gold industry Extraction, tail liquid recovery; environmental treatment industry sewage treatment, waste gas and harmful gas treatment, gas purification; and related industries, cigarette filters, wood floor moisture, odor absorption, automotive gasoline evaporation pollution control, preparation of various impregnating liquids Wait. Activated carbon will have excellent development prospects and a broad sales market in the future.
The columnar activated carbon has a better adsorption effect on the volatile organic compounds in the water, and the removal rate of various volatile organic compounds in the water body can reach 25%-65%. Comparing the adsorption laws of various molecular weight organic substances, it can be seen that for volatile organic compounds, the higher the molecular weight, the higher their removal rate. This is similar to the adsorption law of phenol and cationic yellow, that is, for small molecular organic matter in water, the larger the molecular weight, the easier it is to be adsorbed by activated carbon.
Activated carbon has a good removal effect on extractable organic matter having a molecular weight of less than 480, and the removal efficiency of macromolecular organic matter is low. This is mainly due to the pore-resistance effect of the microporous structure of activated carbon. Too large organic molecules cannot enter the pores of activated carbon and can only be adsorbed on the surface of activated carbon, so that its effective adsorption site on activated carbon decreases, causing it to adsorb. Less efficient.
By comparing the adsorption effects of activated carbon on volatiles and organic matter, the following conclusions are drawn:
Activated carbon has a great difference in the adsorption of volatile organic compounds and extractable organic matter. With the increase of molecular weight, the adsorption effect of volatile organic compounds is better, and the organic matter can be extracted with the decrease of molecular weight, and the adsorption effect is better. This is mainly because volatile organic compounds are mainly organic substances with relatively small polarities, while extractable organic substances are relatively polar organic substances. Activated carbon itself can be regarded as a non-polar adsorbent, and non-polar substances in water. The adsorption capacity is greater than the adsorption capacity of the polar substance. Moreover, when the size of the adsorbed molecules is proportional to the activated carbon, it is most favorable for adsorption. For molecules with less polarity, the larger the molecular weight, the better the adsorption.
Main conclusions: Activated carbon has a very strong competition for the adsorption of various organic substances in water. The amount of adsorption of various organic substances is not only related to the molecular structure of organic matter, but also related to the amount of organic matter in water. At the same time, for volatile organic compounds and extractable organics, their adsorption amount on activated carbon is completely opposite to the molecular weight. The extractable organic matter decreases with the increase of molecular weight, while the adsorption performance of volatile organic compounds increases with the increase of molecular weight.
Zhengda coal columnar activated carbon technical parameters:
Item (unit) Iodine value (mg/g) Benzene adsorption (mg/g) Specific surface area (m2/g) Packing density (g/cm2) Strength (%) Moisture (%)
Value ≥1000 ≥450 900-1100 0.5-0.55 ≥90 ≤10
Zhengda coal columnar activated carbon common specifications: 0.5-1mm, 1-2mm, 2-4mm, 3-5mm
Packing instructions woven bag packaging: 25 kg / bag
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Columnar activated carbon is where you purify our water and filter out the freshest air.