VOC (volatile organic compounds) catalysts are crucial materials for treating volatile organic emissions. Their core function is to convert harmful VOCs into harmless carbon dioxide and water through catalytic chemical reactions, while reducing the activation energy of the reaction to achieve high-efficiency purification at low temperatures. Below is a detailed introduction to VOC catalysts:

I. Working Principle

The VOC catalyst facilitates flameless combustion of organic waste gases at lower temperatures (usually below 350℃) by reducing the activation energy of the reaction, producing carbon dioxide and water. This process is a typical gas-solid phase catalytic reaction, where active oxygen participates in deep oxidation, and reactant molecules accumulate on the catalyst surface, significantly enhancing the reaction rate.

II. Core Performance Indicators

• Ignition Temperature: The temperature at which the catalyst activity is measured by the commonly used conversion rate in the laboratory, with high-quality catalysts, the ignition temperature can be as low as 200°C.
• Oxidation conversion efficiency: The oxidation conversion efficiency of an efficient catalyst must be ≥95% to ensure that the exhaust gas meets the emission standards.
• Pore density and compressive strength: Pore density is typically 200-400 cpsi, with compressive strength ≥ 8MPa to withstand mechanical stress in industrial environments.
• Space Velocity: The amount of gas processed by the catalyst per unit time and per unit volume (unit: m³/(m³ catalyst·h)), reflecting the processing capacity of the catalyst. For example, a space velocity of 30000 h⁻¹ indicates that one cubic meter of catalyst can process 30000 cubic meters of waste gas per hour.