Decomposition of volatile organic compounds in a plasma-catalytic reactor

A combined plasma-catalytic reactor was used for purification of air. The air was circulated through a grained catalyst, in which a pulsed-discharge plasma was excited at one time at atmospheric pressure. Acetone, ethyl lactate, and propylene glycol monomethylethyl acetate were used as impurities. The dry air and saturated humid air were purified. Results on the decomposition of the impurities with the use of a heated catalyst and a plasma in an inert filling material were also obtained. The combined reactor showed points in its favor for the purification conditions realized at a relatively small specific power consumption of ~100 J/liter.