E.I.Tec. GmbH Energy and Environmental Technology products

AmmoNOx is a process developed especially for inert material flows containing solely N2, NH3; H2. As opposed to the usual processes that purify those pollutant combinations by means of thermal combustion and additional rinsing or thermal combustion and additional pure gas dilution (so-called flue gas cooling) this special process is based on an oxidation procedure that purifies all arising pollutants in an energy-efficient way. With our process we can reduce both the value of NH3 30 times over and also the current limiting values as stated in TA Luft 5 times over. Depending on the requirements, several different model variants are available.

MetSorb is a dry-bed adsorption system that can clean various different metal-organic compounds, depending on the design. MetSorb systems are available in two series: as an integrated model in a AmmoNOx/AmmoNOx light system or as stand-alone model. Via an integrated monitoring system the available adsorption capacities can be called up at any time.

SiliNOx systems are used for cleaning high NOx concentrations with major deviations (peaks). One of the applications is cleaning material flows after a wet-etching process used for silicon ingots or wafers. SiliNox can recognize NOx concentration and purifies the deviations (peaks) by  means of a flexible conditioning of exhaust air flow. Depending on the requirements of material flows SiliNOx systems can be combined with acid or alkaline rinsing systems. Intelligent control/measuring systems can guarantee observing required pure gas levels. SiliNOx systems are characterized by a high level of availability, low running costs and durability. We can ensure this as we use high-quality materials and tried and tested components.

Concentration is used for high levels of exhaust gas with low concentration of pollutants. In combination with an oxidizing unit this system can be an alternative to pure oxidization. Its principle is rather simple: the pollutants in the flow settle down on a porous material/agent (absorption) and are carried off by means of a low-level hot air flow (desorption). As a consequence, this low-level flow of desorption bears a higher pollutant concentration, which means that on the one hand the oxidizing unit can consist of a smaller unit and on the other hand the probability to achieve the auto-thermal condition of combustion via this higher concentration is increased.

Concentration is used for high levels of exhaust gas with low concentration of pollutants. In combination with an oxidizing unit this system can be an alternative to pure oxidization. Its principle is rather simple: the pollutants in the flow settle down on a porous material/agent (absorption) and are carried off by means of a low-level hot air flow (desorption).

In many industries dust levels can have various different consistencies and temperature levels, depending on production or unit processes. Dusts with a high-level humidity content have to be treated differently than those with high temperatures and high-level concentration.

In general, there are two procedures available which can be implemented depending on flue gas conditions. Non-selective catalytic reduction processes are based on the injection of a reactive agent without using an activating catalytic converter.

These two system processes are, among others, used in the ceramics industry. They are partly applied for separation of dust, hydrogen fluorine, hydrogen chlorine and sulfur oxide.