Gas Treatment Catalysts

The CO removal catalyst primarily works based on the adsorption of reactants on the catalyst and surface chemical reactions. In the CO oxidation reaction, CO is adsorbed on the surface of the catalyst and reacts with oxygen molecules on the surface to form CO₂ and water, among other harmless substances. The efficiency of CO removal is significantly improved through the action of the catalyst.

A desulfurization agent is a chemical additive used to remove SO₂ and H₂S gases from combustion exhaust gases. During the desulfurization process, the desulfurization agent reacts chemically with sulfur compounds, converting them into harmless substances, thereby achieving the goal of purifying the exhaust gases.

Desulfurization agents are widely used in industries such as coal, chemical, and power generation. They play a crucial role in protecting the environment and human health, making them indispensable in these industries. For example, in chemical production processes, certain methods can generate large amounts of harmful gases like SO₂. Desulfurization agents are used to remove these harmful gases, thereby protecting the production environment and ensuring the health of employees.

"VOCs removal catalyst" or "Volatile Organic Compounds (VOCs) removal catalyst." This refers to a catalyst used to facilitate the chemical reaction that removes volatile organic compounds from air or industrial emissions, aiming to reduce air pollution and improve environmental quality.

Common Types of Catalysts:

VOCs catalysts mainly include precious metal catalysts and non-precious metal catalysts.

Precious Metal Catalysts: These include precious metals such as platinum and palladium. They have high catalytic activity, thermal stability, and resistance to poisoning. However, their cost is relatively high.

Non-Precious Metal Catalysts: Examples include cobalt-manganese oxides and copper-manganese oxides. Compared to precious metal catalysts, non-precious metal catalysts have a lower cost but exhibit relatively weaker catalytic activity and resistance to poisoning.

Ozone is a strong oxidizing agent with an oxidation-reduction potential of 2.07 V in water, second only to fluorine. Its oxidizing ability is higher than that of chlorine and chlorine dioxide. Ozone can destroy bacterial cell walls, quickly diffuse into cells, and directly interact with bacteria and viruses. It disrupts large molecular polymers such as cells, proteins, lipids, and polysaccharides, thereby impairing the metabolism and reproduction of bacteria. Excessively high concentrations of ozone can have significant impacts on both the environment and human health.

The working principle of ozone decomposition catalysts is based on redox reactions. These catalysts are typically prepared by forming one or more metal oxides. They effectively adsorb and catalyze the decomposition of ozone, rapidly breaking down excess ozone after aeration without consuming any additional energy. The catalysts are characterized by high decomposition efficiency and long service life.