Oxidizers are chemical reactants that readily yield oxygen or vigorously promote oxidation reactions or the combustion of organic and typically non-flammable materials. Though this is the popular scientific explanation, the term is also applied to emission control systems which operate using the chemicals known as oxidizers to reduce or eliminate harmful pollutants in an air stream. Incineration or chemical reactions that occur in these systems reduce pollutants such as volatile organic compounds (VOCs), converting them into carbon dioxide, water and nitrogen.
Oxidizers play a crucial role in many applications when it comes to air pollution control for industrial companies. Because of the important task they complete, maintaining the operating performance of oxidizers is often a high priority. The following are some helpful tips to make certain that you and your company are getting the most out of your oxidizer as this will prevent the need for repairs and other unnecessary slow-downs in the future. Maintaining the system consistently throughout the year, and particularly in the winter months, is recommended to ensure the oxidizer's overall reliability. One of the simplest things you can do is to regularly do a visual once over of the system, checking equipment for splits, cracks, debris or discoloration. Installing a desiccant-style dryer for the compressed air supply is also recommended in order to avoid moisture build-up. It is also a good idea to stock spare parts as this will greatly reduce downtime if a component does happen to fail.
Obviously, it is also important to follow regular maintenance schedules listed in standard operating manuals. Having a combustion technician fine tune the unit each year is also highly recommended to get your system back on track and operating at the highest performance level. This task could also catch potential failures and correct them before major repairs are required, thus saving time and money in the long run. There are also usually options for programs that offer real time system information, user friendly troubleshootinmg, and higher levels of energy efficiency. Again, it is also important to investigate the desiccant dryer and compressed air lines for leaks and condensation. Don't slack on preventative maintenance and pay for it later. Secure the working order of your oxidizer system by performing continual inspection and maintenance throughout the year.
While oxidizers do not inherently eliminate all contaminants and particulates in an air stream, byproducts of the reaction are non-toxic and more easily managed after oxidization than the original pollutants. The complex machines are often very large and are therefore more applicable in industries that yield high emissions such as paper and pulp, agriculture, printing, food processing, polymer and resin manufacturing, pharmaceuticals, painting and more. Not all oxidizers are so cumbersome, however, as they are also implemented in automotive exhaust systems. The volume and solvent load of process air stream should be carefully considered when selecting an oxidizer as is the typical temperature range of a system. All of these factors have a significant impact on the destruction efficiency of an oxidizer which is generally between 90% and 99%.
Though highly specialized, the basic operation of oxidizers is not overly complicated. An air stream that has been polluted by industrial processing is forced into the main chamber of an oxidizer. The materials are heated to the point where incineration or a chemical reaction occurs, burning and converting the harmful solids or liquids into less harmful byproducts which may then be filtered or collected for disposal. There are two main types of oxidizers, thermal and catalytic. Thermal oxidizers may be regenerative or recuperative with regards to heat transfer and retention. This is essential to lowering operational costs as thermal oxidizers use very high heat to incite combustion of contaminants. Catalytic converters likewise break down hazardous compounds, but do so at a much lower temperature. To accomplish this, a noble metal catalyst, such as platinum or palladium, is used to promote oxidation within the combustion chamber. Oxidizers that make use of a rotor concentrator are also growing in popularity. These oxidizers process air flows through a continuously rotating wheel impregnated with adsorbent agents. The type of oxidizer chosen depends largely on the operating space and capacity as well as the specific contaminants in a process stream. Selection should be made carefully to ensure the highest destruction efficiency possible which results in diminished atmospheric pollution.
Oxidizer Manufacturers - Perceptive Industries, Inc.
Oxidizer Manufacturers - Anguil Environmental Systems, Inc.