Method and system for treating a gaseous stream containing organic and inorganic volatile compounds

摘要

Method for purifying a gaseous stream, containing volatile organic or inorganic compounds, by means of a rotor, containing adsorbent material, rotating around an axis, said adsorbent material contained in a rotor passing through an adsorption zone for the polluted compounds, a desorption zone for the polluted compounds and a cooling zone (24), said method comprising the steps of enabling the polluted gaseous stream to cross said adsorption zone to adsorb volatile compounds contained in the stream, generating a desorbing gaseous stream that crosses the desorption zone, whose flow-rate is independent from the one of the gaseous stream to be purified, said desorbing stream having a sufficient temperature for securing the desorbing process of the adsorbent material contained inside said rotor and generating a cooling stream that crosses the cooling zone, whose flow-rate is independent from the one of the gaseous stream to be purified, said cooling stream having a sufficient temperature for enabling the adsorbent material contained in the cited rotor to return in condition to adsorb. The desorbing stream crossing the desorbing zone being an inert gas or a low-oxygen content gas.