Temperature profile of packed-bed non-thermal plasma reactor and its effect on toluene decomposition

This study aims to profile real plasma temperature inside the packed-bed (PB) non-thermal plasma (NTP) reactor using a fiber Bragg gratings (FBG) and its effect on toluene decomposition efficiency. PB reactor was designed and fabricated by packing some dielectric material of barium titanate (BaTiO3)...

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Main Author: Rosdi, Nur Zazwani
Format: Thesis
Language:English
Published: 2017
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Online Access:http://eprints.utm.my/id/eprint/79455/1/NurZazwaniRosdiPFS2017.pdf
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spelling my-utm-ep.794552018-10-31T12:39:25Z Temperature profile of packed-bed non-thermal plasma reactor and its effect on toluene decomposition 2017 Rosdi, Nur Zazwani QC Physics This study aims to profile real plasma temperature inside the packed-bed (PB) non-thermal plasma (NTP) reactor using a fiber Bragg gratings (FBG) and its effect on toluene decomposition efficiency. PB reactor was designed and fabricated by packing some dielectric material of barium titanate (BaTiO3) pellets between two stainless steel electrodes. The FBG was embedded inside the reactor to measure the plasma temperature within the plasma stream. Plasma temperatures for four carrier gases, helium (He), argon (Ar), nitrogen (N2), and air were profiled at different applied voltages ranging between 4 and 16 kV based on their breakdown voltage to determine suitable gases for toluene decomposition process that has good temperature stability and no arc formation. For noble gases He and Ar, the plasma temperatures are in the range of 25-80°C and 60-170°C, respectively, while those of N2 and air are in the range of 28-200°C. Air was selected as carrier gas for toluene decomposition process due to higher plasma temperature, no arc formation and higher free oxygen radicals in the plasma stream. The results show that the plasma temperature increases with the increase in applied voltage, and with the decrease in flow rate and toluene input concentration. The average plasma temperature for toluene decomposition in air is in the range of 100-260°C when measured under applied voltage of 14-19 kV, carrier gas flow rate of 1.0-2.0 L/min and toluene input concentration of 500-8400 ppm. Complete toluene decomposition efficiency has been achieved under plasma parameters of 18 kV, 2.0 L/min and 500 ppm. From this finding, plasma temperature profiling using FBG sensor can be used as plasma diagnostic tool to replace Fourier Transform Infrared spectroscopy (FTIR) instrument and as indicator when toluene decomposition process is complete. 2017 Thesis http://eprints.utm.my/id/eprint/79455/ http://eprints.utm.my/id/eprint/79455/1/NurZazwaniRosdiPFS2017.pdf application/pdf en public phd doctoral Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic QC Physics
spellingShingle QC Physics
Rosdi, Nur Zazwani
Temperature profile of packed-bed non-thermal plasma reactor and its effect on toluene decomposition
description This study aims to profile real plasma temperature inside the packed-bed (PB) non-thermal plasma (NTP) reactor using a fiber Bragg gratings (FBG) and its effect on toluene decomposition efficiency. PB reactor was designed and fabricated by packing some dielectric material of barium titanate (BaTiO3) pellets between two stainless steel electrodes. The FBG was embedded inside the reactor to measure the plasma temperature within the plasma stream. Plasma temperatures for four carrier gases, helium (He), argon (Ar), nitrogen (N2), and air were profiled at different applied voltages ranging between 4 and 16 kV based on their breakdown voltage to determine suitable gases for toluene decomposition process that has good temperature stability and no arc formation. For noble gases He and Ar, the plasma temperatures are in the range of 25-80°C and 60-170°C, respectively, while those of N2 and air are in the range of 28-200°C. Air was selected as carrier gas for toluene decomposition process due to higher plasma temperature, no arc formation and higher free oxygen radicals in the plasma stream. The results show that the plasma temperature increases with the increase in applied voltage, and with the decrease in flow rate and toluene input concentration. The average plasma temperature for toluene decomposition in air is in the range of 100-260°C when measured under applied voltage of 14-19 kV, carrier gas flow rate of 1.0-2.0 L/min and toluene input concentration of 500-8400 ppm. Complete toluene decomposition efficiency has been achieved under plasma parameters of 18 kV, 2.0 L/min and 500 ppm. From this finding, plasma temperature profiling using FBG sensor can be used as plasma diagnostic tool to replace Fourier Transform Infrared spectroscopy (FTIR) instrument and as indicator when toluene decomposition process is complete.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Rosdi, Nur Zazwani
author_facet Rosdi, Nur Zazwani
author_sort Rosdi, Nur Zazwani
title Temperature profile of packed-bed non-thermal plasma reactor and its effect on toluene decomposition
title_short Temperature profile of packed-bed non-thermal plasma reactor and its effect on toluene decomposition
title_full Temperature profile of packed-bed non-thermal plasma reactor and its effect on toluene decomposition
title_fullStr Temperature profile of packed-bed non-thermal plasma reactor and its effect on toluene decomposition
title_full_unstemmed Temperature profile of packed-bed non-thermal plasma reactor and its effect on toluene decomposition
title_sort temperature profile of packed-bed non-thermal plasma reactor and its effect on toluene decomposition
granting_institution Universiti Teknologi Malaysia, Faculty of Science
granting_department Faculty of Science
publishDate 2017
url http://eprints.utm.my/id/eprint/79455/1/NurZazwaniRosdiPFS2017.pdf
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