Removal Characteristics of Single and Binary Vapors of Acetone, Toluene, and Methyl Mercaptan by Cylindrical UV Reactor Installed with TiO2-Coated Perforated Plane

The photocatalytic decomposition characteristics of toluene, acetone, and methyl mercaptan (MM) by UV reactor installed with $TiO_2$ -coated perforated plane were studied. The removal efficiency of single toluene, acetone, and MM vapor was increased with increasing oxygen concentration, but decreased with increasing inlet concentration. Elimination capacity of single toluene, acetone, and MM vapor was obtained to be $628g/m^3{\cdot}day$ , $1,041g/m^3{\cdot}day$ , and $2,158g/m^3{\cdot}day$ , respectively. Also, the photocatalytic decomposition of binary vapor consisted of toluene and acetone, toluene and MM, acetone and MM were observed. Elimination capacity of toluene mixed with acetone, toluene mixed with MM, acetone mixed with toluene, acetone mixed with MM, MM mixed with toluene, and MM mixed with acetone was $327g/m^3{\cdot}day$ , $512g/m^3{\cdot}day$ , $128g/m^3{\cdot}day$ , $266g/m^3{\cdot}day$ , $785g/m^3{\cdot}day$ and $883g/m^3{\cdot}day$ , respectively. The inhibitory effect of acetone was higher than MM in photocatalytic decomposition of toluene, the inhibitory effect of toluene was higher than MM photocatalytic decomposition of acetone, and the inhibitory effect of toluene was higher than acetone in photocatalytic decomposition of MM.