How Do Ozone Decomposition Catalysts Eliminate Ozone in Printing Plants?

Ozone has a strong oxidizing effect and is widely used for disinfection in the medical industry. It is also essential in the atmosphere. However, excessive ozone in our living environment can also cause significant harm. For example, the ozone generated in printing plants, which is a common practice in our daily lives, can harm printing workers if not properly eliminated. Many people wonder how ozone is produced in printing plants. When printing, the printing equipment in a printing plant discharges electricity into the air, which contains oxygen. High-voltage discharge devices convert oxygen into ozone during the process. Therefore, printing plant workers wear masks, and ozone in their workspaces must be professionally treated and eliminated to prevent excessive ozone from harming the human body and corroding equipment. Currently, the most common method is to use ozone decomposition catalysts. How do ozone decomposition catalysts eliminate ozone in factories?
Ozone decomposition catalysts use transition metals (such as manganese, cerium, and lanthanum oxides) and rare earth elements as active components, supported on γ-alumina, ceramic foam, or honeycomb aluminum supports. Upon contact with the catalyst surface, ozone (O₃) decomposes into oxygen (O₂) at room temperature: [M⋅O] + O₃ → 2O₂ + M.
Printing plants can install strip catalysts after UV photolysis equipment to achieve an ozone purification rate exceeding 99.9%, reducing outlet concentrations to below 0.01 ppm. This decomposes residual ozone from previous processes, ensuring that exhaust gases meet standards and pose no harm to humans or the environment.

In the printing industry, ozone decomposition catalysts can control ozone pollution both at the source and during diffusion, particularly for the high-risk UV curing process. This ensures production compliance, maintains a healthy workshop environment, and protects equipment from corrosion. Ozone decomposition catalysts are essential environmentally friendly materials in the printing industry.

author：Hazel
date:2025-08-06