Understanding Regenerative Thermal Oxidizer Technology

Regenerative Thermal Oxidizer


A regenerative thermal oxidizer is basically a processing unit in various chemical plants which regenerates hazardous chemical compounds in a highly pressurized environment and releases them back into the atmosphere. These units are also called regenerative thermal oxidizers and they have some interesting characteristics that make them extremely useful in a wide range of applications. These regenerative thermal oxidizers include regenerative thermal oxidizers, photo-reactive thermal oxidizers, photo-catalytic thermal oxidizers, and catalyst cells.

thermal oxidizers

regenerative thermal oxidizers use an active ingredient to trigger the self-healing properties of thermal moieties. There are generally four different active ingredients that can be used in thermal oxidizers. These include: boron, bromine, oxygen, and nitrogen. The boron-oxygen combination has been found to be very effective at triggering the self-healing property of thermal moieties. Other common boron-containing compounds used in thermal oxidizers are monochlorobenzene and carbazole.

Photo-reactive thermal oxidizers tend to have a good safety profile and they are used in certain industry applications where ignition of the fuel would be hazardous. Examples of photo-reactive regenerative thermal oxidizers are those having boron-peroxide systems and those containing oxygen. Photo-reactive regenerative thermal oxidizers can be classified further into two broad categories. First, photo-catalytic agents and second photo initiators. In a catalytic agent, one or more oxygen atoms are added to a catalyst that in turn reacts with a pair of hydrogen atoms to generate energy.

A photo initiator is any element having a positive charge that can induce electron transfer reaction that results in the formation of either a free radical or in the case of zinc pyrithione, an electron in an adjacent orbital. A photo initiator cannot itself give off free radicals; it only allows free radicals produced by the reaction to escape from the catalyst. A photo catalytic catalyst is usually a solid oxide that releasing oxygen in the process of reacting with a molecule of hydrogen or a metal. Some examples of commonly used photo catalytic catalysts are ferricyanide and ferric oxides.

The main advantages of regenerative thermal oxidizers are that they are extremely safe, produce low toxic emissions and do not require any form of combustion catalyst. They are useful for ignition of fuel in diesel, rocket motors and turbine generators, and for generating electricity in hybrid cars. Their key disadvantage is that their efficiency is lower than that of methanol or urethane burning fuel.

Thermal oxidation is achieved through spontaneous reaction between oxygen and the active material. In case of a compound like water, oxygen is split into two molecules, while in case of pure metal alloys, one molecule is occupied by oxygen while the other two are being consumed by the catalyst. Thus, the process produces heat energy which is transformed into heat energy. The process of thermal oxidization can be activated by means of a catalyst, resulting in a chemical reaction that gives rise to energy.

There are four broad categories of regenerative thermal oxidizers: photo initiators, thermoelectric devices, photo-catalytic mixtures and selective catalytic oxidation. Photo initiators use a combination of two or more oxidizers such as in a photo-catalytic converter, while thermoelectric devices use only one oxidizer. Thermoelectric devices are less efficient than the other two but are useful for general applications such as vehicle engines. Photo catalytic mixtures contain oxygen, nitrogen, hydrogen and one or more substances which may cause the chain reaction referred to as thermal oxidation. The most efficient examples of these are a mixture of oxygen and hydrogen, naphthalene, trivalent chromium, boron carbide, ferricyanide, chlorination, ferrous iron, and boron.

The advantages of regenerative thermal oxidizers over other similar products are numerous. The thermal oxidizers are more economical because they do not require electricity to produce their heat energy, they do not emit any harmful gases during combustion, and they have a long operating time. regenerative thermal oxidizers are also environment friendly and safe. They increase the life expectancy of a thermal oxidizer and extend its service life. While choosing the oxidizer  for your needs, you should always consider factors such as performance, cost, compatibility, safety, and eco-friendliness.

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