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.
Choosing a desulfurization product depends on your specific application scenario and the type of sulfide being treated. Different industries, different types and concentrations of sulfides require significantly different desulfurization products and technologies.
Unlike zinc oxide desulfurizers, which are mainly used in medium-temperature, fine desulfurization applications, iron oxide desulfurizers offer unique and significant cost and operational advantages in their respective fields.
Zinc oxide desulfurizer is a highly efficient solid adsorbent used to remove hydrogen sulfide (H₂S) from industrial feed gases. It is renowned for its core advantages: deep desulfurization, high sulfur capacity, and irreversible reaction.
In the oxygen production field, zeolite molecular sieve is currently the most widely used core technology, especially in applications requiring oxygen concentrations above 90%. However, the specific molecular sieve selection depends on a comprehensive consideration of your application, oxygen purity, energy consumption, and budget.
In pressure swing adsorption (PSA) systems, activated carbon, thanks to its excellent pore structure and surface properties, serves as one of the core adsorbents for the selective adsorption of carbon dioxide (CO₂). Its application principle revolves around the core PSA mechanism of "pressure-driven adsorption, pressure reduction-driven desorption." Through precise control of process parameters and adsorbent performance, efficient CO₂ separation and recovery is achieved. The following detailed analysis of its application logic encompasses four dimensions: technical principles, key steps, activated carbon property requirements, and process design.
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:
Get Free Sample
WhatsApp