Control Air Pollution with a Low Temperature Catalytic Oxidizer

14 June 2017   Anti-Pollution

Lower your costs with a Catalytic Oxidizer

Catalytic Oxidizer by hiTempTechThermal and Catalytic Oxidizers destroy Hazardous Air pollutants (HAPs), Volatile Organic Compounds (VOCs), and odorous emission that are often discharged from industrial and organic processes. Through the process of catalytic oxidation, it converts the pollutants to much safer carbon dioxide and water vapor. A catalytic oxidizer, also known as a Catox Incinerator, is a type of oxidation system that is similar in function to a thermal oxidizer. However, it uses a catalyst to promote oxidation at lower temperatures.

A catalyst is a substance which accelerates the rate of a chemical reaction using an industrial-grade catalyst bed in the air treatment equipment. Oxidation is accomplished at a much lower temperature than thermal oxidation. Oxygen mixes with the air pollutant, which is then heated to an elevated temperature and passed through a catalyst. The catalyst destroys the pollutant in the air stream by converting it to CO2, H2O, and heat. The temperature of the catalyst chamber controls the rate of reaction. In addition, the rate changes based on the amount of time the pollutant spends within the catalyst itself.

Catalytic oxidation typically happens through a chemical reaction between the VOC molecules and a metal/ceramic catalyst bed in the system. This oxidizer system can operate effectively and efficiently at 370 – 480 degrees Celsius. A thermal oxidizer requires temperatures nearly double that – between 700 – 820 degrees Celsius. As as result, catalytic oxidizers result in fuel savings of between 40 – 60%, and lower carbon emissions and operating costs than thermal oxidizers.

Regenerative OR Recuperative Oxidizers

In some instances, catalytic oxidizers are combined with Regenerative Thermal Oxidizers or Recuperative Thermal Oxidizers. These systems achieve emission destruction at lower standard temperatures. A Recuperative Catalytic Oxidizer incorporates a Thermal storage media that recovers the process heat, thus reducing the fuel requirement. In recuperative heat recovery, the hot exhaust gases pass through a non-contact air-to-air heat exchanger to the oxidizer. The system heats the gases and recovers the heat.

Regenerative catalytic oxidizers allow lower operating temperatures by using suitable oxidation catalysts to reduce ignition temperatures and operating costs. Regenerative heat recovery alternatively passes hot exhaust gases and cooler inlet gases through a fixed bed, typically employing ceramics.

Use gas or electric heating source

HiTemp Technology designs and builds SVE (Soil Vapor Extraction) systems and created the first conversion recuperative catalytic oxidizer that can be field modified to operate with either gas or electric as the heating source. We can evaluate your situation and customize a high efficiency and low temperature solution. Contact us today!