A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Removal of indoor α-pinene with a fiber optic illuminated honeycomb monolith photocatalytic reactor
This study was undertaken to investigate the influencing factors including gas flow rate, inlet α-pinene concentration and relative humidity on the removal of α-pinene in a Degussa P25 supported honeycomb monolith reactor. We used the fiber optic illumination to enhance the intensity of UV-light irradiating on the Degussa P25 photocatalyst. The α-pinene conversion increased with the increase of gas flow rate indicating that the reaction rate was associated with the gaseous phase mass transfer. The α-pinene conversion varied between 91% and 96% in the range of inlet α-pinene concentration (400–2400 ppb) and relative humidity (30–70%) examined. The kinetics fits the Langmuir–Hinshelwood model. The rate coefficient (k) of α-pinene under RH30%, 50% and 70% was 0.82, 0.24, and 0.18 μmol m−2s−1, respectively. The competitive Langmuir adsorption constants for α-pinene under RH30%, 50% and 70% were 0.17, 0.56 and 1.74 ppm−1, respectively. The effect of relative humidity on α-pinene conversion depends on the inlet α-pinene concentration and raising relative humidity in sum has a positive effect on the reduction of partially oxidized intermediates within the range investigated.
Removal of indoor α-pinene with a fiber optic illuminated honeycomb monolith photocatalytic reactor
This study was undertaken to investigate the influencing factors including gas flow rate, inlet α-pinene concentration and relative humidity on the removal of α-pinene in a Degussa P25 supported honeycomb monolith reactor. We used the fiber optic illumination to enhance the intensity of UV-light irradiating on the Degussa P25 photocatalyst. The α-pinene conversion increased with the increase of gas flow rate indicating that the reaction rate was associated with the gaseous phase mass transfer. The α-pinene conversion varied between 91% and 96% in the range of inlet α-pinene concentration (400–2400 ppb) and relative humidity (30–70%) examined. The kinetics fits the Langmuir–Hinshelwood model. The rate coefficient (k) of α-pinene under RH30%, 50% and 70% was 0.82, 0.24, and 0.18 μmol m−2s−1, respectively. The competitive Langmuir adsorption constants for α-pinene under RH30%, 50% and 70% were 0.17, 0.56 and 1.74 ppm−1, respectively. The effect of relative humidity on α-pinene conversion depends on the inlet α-pinene concentration and raising relative humidity in sum has a positive effect on the reduction of partially oxidized intermediates within the range investigated.
Removal of indoor α-pinene with a fiber optic illuminated honeycomb monolith photocatalytic reactor
Yu, Kuo-Pin (author) / Lee, Grace Whei-May (author) / Hung, An-Jie (author)
Journal of Environmental Science and Health, Part A ; 49 ; 1110-1115
2014-08-24
6 pages
Article (Journal)
Electronic Resource
English
Removal of indoor -pinene with a fiber optic illuminated honeycomb monolith photocatalytic reactor
| Online Contents | 2014
| British Library Online Contents | 2016
| British Library Online Contents | 2016
HONEYCOMB MONOLITH STRUCTURE WITH CELLS HAVING ELONGATED CROSS-SECTION
| European Patent Office | 2015