초록 ▼

A vehicle, preferably a public transport vehicle, transports an apparatus providing for intake of polluted air, which is purified of carbon, nitrogen and sulphur oxides, unburned matter and particulate, the impurities being collected and disposed of after a working cycle of around 10 hours. The ener

A vehicle, preferably a public transport vehicle, transports an apparatus providing for intake of polluted air, which is purified of carbon, nitrogen and sulphur oxides, unburned matter and particulate, the impurities being collected and disposed of after a working cycle of around 10 hours. The energy consumption is negligible when compared with the volume of air treated. (FIG. 2).

대표청구항 ▼

Process for the purification of polluted air in an urban environment by means of an apparatus transported by a vehicle, comprising the steps of: supplying ambient polluted air to a reaction system; producing ozone and decomposing it to form nascent oxygen within the polluted air to be purified; oxid

Process for the purification of polluted air in an urban environment by means of an apparatus transported by a vehicle, comprising the steps of: supplying ambient polluted air to a reaction system; producing ozone and decomposing it to form nascent oxygen within the polluted air to be purified; oxidising the pollutants CO and NOx into CO2 and NO2 by reaction with said nascent oxygen and then passing the resultant air through a bed of a catalyst A active at ambient temperature, said catalyst A being selected from the group consisting of an oxide of a metal from the first series of transition elements of the periodic table or an active salt thereof, a mixed catalyst based on said oxide or salt with a metal of Group VIII or Group IB of the second and third series of transition elements, Pt, and a mixed catalyst of Pt, Pd and Au where one metal is mixed with another; washing the treated air by passing the air through sprays of a washing liquid formed of an aqueous solution containing lime, or a mixture of lime and NaHCO3 , and hydroxyl ions derived therefrom, along a serpentine-like route to form insoluble salts, and to reduce particulates and unburned materials to purify the air; recycling the liquid by: (A) filtering the washing liquid used in said washing step, and settling and collecting the insoluble matter and impurities; (B) adding makeup lime or a mixture of lime and sodium bicarbonate to recondition the filtered washing liquid; (C) supplying said reconditioned washing liquid to said washing step; and discharging the purified air into the outside environment.