 Sıralama: ÜyeMadalyalar:  Katılan: 8.3.2021(UTC) Mesajlar: 183  Konum: 香港
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When the gas molecules occupy the adsorption surface of activated carbon, the adsorption of activated carbon will be reduced, resulting in the so-called "poisoning" of activated carbon.
If there is oxygen on the activated carbon adsorption, sometimes also make the adsorption of the material oxidation reaction.
Therefore, before the use of activated carbon, most of the gas must be removed by adsorption.yrdcarbon.com
Usually remove the gas in activated carbon there are two methods, one method is to use ephedrine These technologies are developed and applied only for one kind of pollutant, resulting in problems such as resource waste, large initial investment and high operating cost.In the test, the desulfurization effect of the cloth bag dust remover was tested, and its desulfurization rate was about 9%.
4. Analyze the reasons for the low SOZ and NO removal efficiency of activated carbon in the test :(1) ordinary activated carbon is used in the test, which has a low adsorption performance;
(2) Due to the limited test conditions, the low input amount of activated carbon per hour in the test means the selected ACIS is lower.https://www.yrdcarbon.com/products/activated-carbon/activated carbon wholesale australia
Although the removal efficiency of the activated carbon on SO2 and NO measured in this test is low, the activated carbon used in circulating fluidized bed flue gas desulfurization and denitration has the advantages of simple and reliable process, low system resistance, stable desulfurization and denitration, good economic and environmental protection, NO secondary pollution and so on.
Therefore, it is an important subject for sustainable development to study the green and environment-friendly integrated flue gas purification technology with high efficiency, low cost and no secondary pollution.
High-quality granular activated carbon must have good adsorption performance and strength.
Like powdery activated carbon, the adsorption performance of granular activated carbon depends largely on the characteristics of pore structure. The adsorption performance index can be analyzed and characterized by different methods, such as the decolorization performance of activated carbon expressed by methylene blue. Other performance indexes include iodine adsorption value, caramel decolorization rate, etc.
The pore structure characteristics and specific surface area of activated carbon are usually obtained by measuring nitrogen adsorption isotherm at low temperature with adsorption apparatus.
For the gas phase adsorption, the size of the gas molecules is usually less than 1. ONM, the use of microporous activated carbon;
For liquid-phase decolorization refining, due to the large size of the liquid molecules, it is necessary to use activated carbon with developed mesopore.
Activated carbon has a large specific surface area and a particularly developed micro-pore structure, which is the main reason for its strong adsorption capacity and large adsorption capacity.At present, China has applied some flue gas purification technologies such as wet, semi-dry, dry desulfurization, selective catalytic reduction denitration, wet combined desulfurization and denitration technology, electron beam method and so on.
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