Zhongchuang has focused on the production and sales of activated carbon for decades. We are familiar with the application and common sense of activated carbon.
Aperture Matching Principle: Effective adsorption requires the activated carbon's pore size to be an order of magnitude larger (approximately 10 times) than the target pollutant molecule. Dioxin molecules are approximately 1.8 x 1.0 x 0.4 nm, so the optimal pore size for adsorption is concentrated in the mesopore range of 2-5 nm.
Selecting the right activated carbon material is crucial for effective dioxin removal. Dioxin molecules measure approximately 1.8nm (length) x 1.0nm (width) x 0.4nm (thickness). Therefore, in theory, activated carbon with a pore size of 2-5nm (mesopores) is ideal for more effective adsorption.
Copper-impregnated activated carbon, as the name suggests, is a composite adsorption/catalytic material that uses high-surface-area activated carbon as a carrier. Metallic copper (usually copper oxide (CuO) or cuprous chloride (CuCl)) is physically or chemically loaded into its large pore structure and surface.
Activated carbon needs to be replaced when it reaches saturation. Saturated activated carbon can no longer absorb pollutants and may even become a secondary source of pollution when temperatures rise, releasing previously absorbed substances.
The selection of activated carbon for desulphurisation needs to be evaluated on the basis of specific application scenarios (e.g. gas type, sulphide composition, operating conditions, etc.). The following are the common types of activated carbon for desulphurisation and their application scenarios:
The selection of iron oxide desulphurisation agent and activated carbon needs to be based on a combination of factors such as specific application scenarios, target pollutants, operating conditions and economics. The following is a comparative analysis of the two and recommendations for selection:
The quality of molecular sieves is directly related to their performance and effects, so be sure to keep your eyes open when choosing! The following are some practical identification methods for your reference:
The working principle of oxygen molecular sieve is mainly based on physical adsorption and desorption technology. The oxygen generator is filled with molecular sieve, which has selective adsorption capacity. When pressurized, the molecular sieve adsorbs nitrogen in the air, while oxygen is not easily adsorbed due to its smaller diameter and weaker adsorption capacity, thus passing through the molecular sieve to achieve nitrogen and oxygen separation. When the molecular sieve is depressurized, the adsorbed nitrogen is discharged back into the ambient air, achieving the regeneration of the molecular sieve for the next round of nitrogen and oxygen separation.
The activated carbon pulp method (Carbon-in-Pulp, CIP) or "carbon-in-pulp method" in gold recovery is an efficient leaching technology using activated carbon, which is widely used in gold ore treatment and gold recovery. This method mainly achieves the purpose of gold recovery by mixing activated carbon with gold leaching solution so that it can adsorb gold in the solution. The following is a detailed introduction to the carbon-in-pulp method.
There are several key differences in structure and function between impregnated activated carbon and ordinary activated carbon:
Impregnated activated carbon is to immerse the activated carbon in a certain chemical solution so that specific chemicals are loaded on its surface and pores to enhance its adsorption or catalytic performance for a certain type of target pollutant. The following are some common impregnation solutions:
The main application of powdered activated carbon in waste incineration is for flue gas purification, especially the removal of harmful pollutants such as dioxins, volatile organic compounds (VOCs) and heavy metals. The following are some specific applications of it in waste incineration:
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