Effect of TiO2-ZnO/GAC on by-product distribution of CVOCs decomposition in a NTP-assisted catalysis system

• Authors: Kamaladdin Abedi , Farshid Ghorbani-Shahna , Abdolrahman Bahrami , Babak Jaleh , Rasoul Yarahmadi
• Languages of publication: EN

Abstracts

EN

In this study, the catalytic effect of TiO2-ZnO/GAC coupled with non-thermal plasma was investigated on the byproducts distribution of decomposition of chlorinated VOCs in gas streams. The effect of specific input energy, and initial gas composition was examined in a corona discharge reactor energized by a high frequency pulsed power supply. Detected by-products for catalytic NTP at 750 J L-1 included CO, CO2, Cl2, trichloroacetaldehyde, as well as trichlorobenzaldehyde with chloroform feeding, while they were dominated by CO, CO2, and lower abundance of trichlorobenzaldehyde and Cl2 with chlorobenzene introduction. Some of the by-products such as O3, NO, NO2, and COCl2 disappeared totally over TiO2-ZnO/GAC. Furthermore, the amount of heavy products such as trichlorobenzaldehyde decreased significantly in favor of small molecules such as CO, CO2, and Cl2 with the hybrid process. The selectivity towards COx soared up to 77% over the catalyst at 750 J L-1 and 100 ppm of chlorobenzene.

Keywords

EN

non-thermal plasma; catalyst; CVOCs; TiO2-ZnO; granular activated carbon

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2015
• Volume: 17
• Issue: 1
• Pages: 32-40

Dates

published

1 - 3 - 2015

online

25 - 3 - 2015

Contributors

author

Kamaladdin Abedi

• Kurdistan University of Medical Sciences, Department of Occupational Health Engineering, Faculty of Health, Sanandaj, Iran
• Hamedan University of Medical Sciences, Center of Excellence for Occupational Health, Research Center for Health Sciences, Hamedan, Iran

author

Farshid Ghorbani-Shahna

• Hamedan University of Medical Sciences, Center of Excellence for Occupational Health, Research Center for Health Sciences, Hamedan, Iran

author

Abdolrahman Bahrami

• Hamedan University of Medical Sciences, Center of Excellence for Occupational Health, Research Center for Health Sciences, Hamedan, Iran

author

Babak Jaleh

• Bu-Ali Sina University, Department of physics, Hamedan, Iran

author

Rasoul Yarahmadi

• Iran University of Medical Sciences, Department of occupational health, Occupational health research center, School of public health, Tehran, Iran

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Identifiers

DOI

10.1515/pjct-2015-0006