Ecospray Technologies S.r.l.

Haldor Topsoe A/s

Haldor Topse A/s

Maurizio Archetti

Keld Johansen

Leandro Galanti Occulti

Luca Muratori

The present invention relates to a gas-filtering system () comprising: an input () for the gas, a reactor () for filtering the gas at the input () and thus obtaining a filtered gas, an output () for the filtered gas, a vacuum generator () for generating a vacuum inside the reactor (), where the vacuum generator () is configured so as to apply a first predetermined vacuum value (VI) in a first vacuum phase (T) and so as to apply a second predetermined vacuum value (V) in a second vacuum phase (T); the filtering system () further comprising a flow controller () connected at the output to the reactor (), where the flow controller () is configured so as to block the introduction of the filtered gas into the reactor () during the first vacuum phase (T), and where the flow controller () is configured so as to allow the introduction of the filtered gas and/or a second gas into the reactor (), starting from the output () during the second vacuum phase (T).

Gas-filtering system and method

The present invention relates to a filter apparatus () for dedusting gas comprising one or more electrostatic precipitators (), in each of said electrostatic precipitators () there being inserted at least one filtering unit () comprising, in turn, a plurality of filtering cells (), e.g. of the wall flow type. The present invention also relates to a dedusting process for treating industrial gas. In particular, the dedusting process according to the present invention implemented by the filter apparatus having improved dusting efficiency, which is the object of the present invention, allows the treatment of gas coming from industrial processes, such as coal boilers, cement works, incinerators and like.

Gas dedusting filter apparatus and process

Method for removal of soot, ash and metals or metal compounds, together with removal of NOx and SOx being present in process off-gasses or engine exhaust gasses.

Method for cleaning process off- or engine exhaust gas

Method and system for thermal regeneration of a catalyst by inlet turbine exhaust gas from a diesel engine, where a gas split stream () is led from the engine exhaust () through an eductor () and further to regeneration of a catalyst, wherein a cold air stream () is used to keep the regeneration gas stream at a desired constant temperature range.

Catalyst thermal regeneration by exhaust gas

Method and system for removal of particles such as soot, ash and heavy metals, and optionally additionally NOand SObeing present in exhaust gas from an engine or process equipment.

Method and system for the removal of particulate matter from engine exhaust gas or process equipment

A particulate filtering apparatus for dry filtering exhaust gases of a diesel engine includes at least two compartments independently arranged in parallel with respect to a flow of the exhaust gases. Each of the compartments is equipped with at least one shut-off valve for regulating the flow of gas passing through the compartment and further includes one or more filters adapted to hold the particulate and an emission device to generate a countercurrent gas pulse flow at the one or more filters. A central control unit operates and controls the at least one shut-off valve and of said emission device. Each of the at least two compartments further includes an injector operably controlled by the central control unit for the inlet of hot gases into the at least two compartments.

Particulate filtering apparatus for marine diesel engines and method of operation and regeneration of said apparatus

A granule reactor (), an apparatus comprising said reactor and a method implemented by said apparatus are described for treating polluting agents present in industrial gases, particularly but not only, when such gases comprise NO, volatile organic compounds (VOCs), carbon monoxide (CO), hydrocarbons and similar pollutants. The pellet reactor is adapted to be used in the treatment of industrial gases, capable of treating industrial gases and removing particulate from said gases while maintaining a constant efficiency. Moreover, a method of treating the polluting agents present in industrial gases by means of said pellet reactor, and a pellet reactor adapted to implement said method of treatment are described.

Granule reactor for treating polluting agents present in particulate-containing industrial gases, treatment apparatus comprising said reactor and method of treatment implemented by said apparatus

Method and system for removal of soot, ash and heavy metals, and optionally additionally NOand SObeing present in exhaust gas from an engine operated on heavy fuel oil with sulphur content 0.1%-4.0 wt % and a heavy metal element content of 5 mg/kg to 1000 mg/kg.

Method and system for the removal of particulate matter soot, ash and heavy metals from engine exhaust gas

The present invention relates to an apparatus and a method for the selective non-catalytic reduction (SNCR) of NOin industrial cement production plants. In particular, the method according to the present invention provides for the atomization of an aqueous solution containing the reagent by introducing it into the gas to be treated that is at a high temperature, thus achieving the simultaneous and immediate evaporation of the water and gasification of the reagent. Thanks to this method, there is achieved improved performance of the non-catalytic reduction process of NOwhile using the same reagent or, specularly, the same performance with a lesser amount of reagent being required, with consequent reduction of the costs.

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Verscio, Switzerland

Maurizio Archetti