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Adsorption

Adsorption is adopted for treating exhaust gas recovering pollutants with the possibility of recycling them in the process, using particular attention to the type and quantity of substances present in the gaseous stream, so as to allow the continuous and effective use of active element. The active element is selected according to the molecular weight of the substances to be recovered (activated carbons, zeolite). Main parameters are used to designing adsorption plant: contact time, concentration, temperature, humidity and substances.

Solvent can be recovered with adsorption on activated carbon and subsequently it will be stripped with steam/inert gas. This phase is called REGENERATION.

   If the solvent is not water soluble (hexane, benzene, toluene, ect.), the pollutant is recovered by settling of the condensate of the regeneration phase in a separator of gravity and from which are abtained an organic phase solvent-rich free of water and an acqueous phase solvent free.
   If the solvent is water soluble (ethyl acetate, etc.), it is necessary a distillation system to separate the solvent from the water.

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Adsorption
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