Application of Ozone Destruction Catalyst in Corona Treatment Industry

Corona treatment technology is widely used for surface modification of materials such as plastics, films, and metals, playing a critical role in enhancing the printability, coatability, and bonding performance of these materials. During the corona treatment process, high-voltage discharge ionizes oxygen molecules in the air, generating a significant amount of ozone. While ozone improves the surface energy of materials, it also poses serious environmental challenges in corona treatment facilities.

1. Mechanism of Ozone Generation in Corona Equipment

Corona treatment equipment generates corona discharge through high-voltage electrodes, providing sufficient energy to dissociate oxygen molecules in the air. In the discharge zone, oxygen molecules (O₂) dissociate into oxygen atoms (O), which then combine with undissociated oxygen molecules to form ozone (O₃). A standard corona treater can produce hundreds of milligrams of ozone per hour during operation, which can easily reach concentrations harmful to human health in enclosed facilities.

2. Hazards of Ozone in Corona Treatment Facilities

Ozone is a highly oxidizing gas. When its concentration exceeds 0.1 ppm in a facility, it can damage the respiratory systems of operators, potentially leading to occupational diseases such as asthma and reduced lung function with prolonged exposure. Additionally, ozone corrodes metal equipment and accelerates the aging of rubber seals, increasing maintenance costs. Moreover, untreated ozone released into the atmosphere can react with other pollutants to form photochemical smog, contributing to environmental pollution.

3. Application of Ozone Destruction Catalysts

Ozone destruction catalysts decompose ozone into harmless oxygen through catalytic reactions. In corona treatment facilities, these catalysts can be installed in exhaust systems or equipment vents to ensure ozone-laden air passes through the catalyst bed. The active components on the catalyst surface effectively lower the activation energy required for ozone decomposition, enabling rapid breakdown at room temperature. Minstrong's MINSLITE-B series catalysts utilize nano-scale active components, achieving an ozone removal efficiency of over 99% and a service life of up to 3 years.

4. Minstrong's Innovations and Success Stories

With over a decade of expertise in ozone control, Minstrong has developed the MINSLITE-B series catalysts, known for their high activity, long lifespan, and low pressure drop. In a European packaging materials manufacturing facility, the installation of MINSLITE-B catalysts reduced ozone concentration in the corona treatment area from 0.8 ppm to 0.02 ppm, well below the permissible exposure limits. To date, Minstrong's ozone destruction catalysts have been successfully implemented in over 200 corona treatment facilities worldwide, with a cumulative air treatment capacity exceeding 5 million cubic meters per hour.

 As environmental regulations become increasingly stringent, ozone control in the corona treatment industry has become imperative. Ozone destruction catalysts offer an efficient and cost-effective solution, not only improving workplace conditions but also enabling sustainable production practices. Minstrong remains committed to advancing ozone control technologies, providing innovative solutions to support the sustainable development of the corona treatment industry.