Catalytic Oxidizer vs Thermal Oxidizer
Certain manufacturing processes can release harmful pollutants known as volatile organic compounds (VOC) into the atmosphere. These elements have a negative impact on the overall health of surrounding ecosystems and can cause long-lasting damage over the years if left unregulated. In a bid to protect both public and environmental safety, many government agencies have begun requiring factories to maintain practices that reduce the VOCs they emit as a result of their operations.
Oxidation is one of the most popular solutions adopted across the board, being an easy-to-access and implement system for manufacturers of all kinds. In this article, we’ll take a look at its two most common forms, catalytic oxidizers and thermal oxidizers, to get a better understanding of how they compare to one another.
Defining the Catalytic Oxidizer
Catalytic oxidizers, sometimes referred to as catalytic incinerators, are oxidation systems designed to control VOC and volatile HAP emissions. Per their name, these systems use a catalyst to promote the oxidation of VOCs to byproducts like CO2 and water vapor. The most noteworthy feature of this method is its low-temperature operation, which is enabled by the catalyst used in the process. This lowers the activation energy required to start the combustion reaction and subsequently reduces operational costs associated with fuel, energy and maintenance.
Defining the Thermal Oxidizer
A Thermal Oxidizer, also known as a Regenerative Thermal Oxidizer (RTO), is an industrial process specifically designed to reduce VOCs and other air pollutants from a manufacturing process. This type of oxidizer uses a combination of heat and airflow to combust the gasses, converting them into water vapor and carbon dioxide. It is a specialized form of combustion device typically used in industrial processes, such as the chemical and pharmaceutical manufacturing industry.
Comparing the Two
When it comes to choosing the best method for oxidizing VOCs and other air pollutants, there are several factors to consider. The key difference between catalytic and thermal oxidizers lies in their operating temperature, with the latter running at much higher temperatures. Thermal oxidizers are typically used in larger factories that produce higher volumes of exhaust, while catalytic oxidizers are better suited to smaller facilities where the VOC concentration is higher.
Furthermore, catalytic oxidizers are more expensive to install due to the need for a customized catalytic bed, while thermal oxidizers require a smaller initial investment. Additionally, thermal oxidizers can be used in a wider range of industries due to their resistance to certain VOCs and other air pollutants, while catalytic oxidizers are limited to those VOCs that can be destroyed by the metal catalyst monoliths.
Overall, when it comes to oxidizing VOCs and hazardous air pollutants in a safe and efficient manner, both catalytic and thermal oxidizers have their own distinct advantages. Ultimately, the choice of which method to use should be made on a case-by-case basis, taking into account the size of the facility, the concentration of pollutants present and any budgetary restrictions. An environmental solutions company experienced in this field can help to determine the best solution for your specific needs.