Photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide

Concerns of fossil fuel reserves depletion and environmental pollution problems have led to increased demand for alternative fuels. Therefore, methods for converting natural gas into useful fuels were considered. The main objective of this study is to develop pathways for photolysis reduction of car...

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Main Author:	Dastan, Mohammadreza
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/53625/25/MohammadrezaDastanMFKM2014.pdf
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id	my-utm-ep.53625
record_format	uketd_dc
spelling	my-utm-ep.536252020-08-23T07:49:57Z Photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide 2014-08 Dastan, Mohammadreza TP Chemical technology Concerns of fossil fuel reserves depletion and environmental pollution problems have led to increased demand for alternative fuels. Therefore, methods for converting natural gas into useful fuels were considered. The main objective of this study is to develop pathways for photolysis reduction of carbon dioxide and methane. Initially nanocatalyst were investigated using cell type photoreactor with C2H6 and C3H8 as main products during CO2 reduction with CH4 over nitrogen (N) /TiO2 nanocatalyst. The yield of C2H6 over TiO2 was 35 μmole g-1 catal-1 enhanced to 166 μmole g-1 catal-1 using 15% N doped TiO2. Besides, the effects of parameters such as, CH4/CO2 feed ratio, reaction temperature and light irradiation time on yield of reduction of CO2 was studied. Finally, the central composite design (CCD) was employed to find individual and interactive effects of the mentioned parameter on yields of C2H6 was studied. The predicted values of the yield of C2H6 were found to be in good agreement with experimental values (R2= 0.97), which indicate the suitability of the CCD model. 2014-08 Thesis http://eprints.utm.my/id/eprint/53625/ http://eprints.utm.my/id/eprint/53625/25/MohammadrezaDastanMFKM2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:85522 masters Universiti Teknologi Malaysia, Faculty of Chemical Engineering Faculty of Chemical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Dastan, Mohammadreza Photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide
description	Concerns of fossil fuel reserves depletion and environmental pollution problems have led to increased demand for alternative fuels. Therefore, methods for converting natural gas into useful fuels were considered. The main objective of this study is to develop pathways for photolysis reduction of carbon dioxide and methane. Initially nanocatalyst were investigated using cell type photoreactor with C2H6 and C3H8 as main products during CO2 reduction with CH4 over nitrogen (N) /TiO2 nanocatalyst. The yield of C2H6 over TiO2 was 35 μmole g-1 catal-1 enhanced to 166 μmole g-1 catal-1 using 15% N doped TiO2. Besides, the effects of parameters such as, CH4/CO2 feed ratio, reaction temperature and light irradiation time on yield of reduction of CO2 was studied. Finally, the central composite design (CCD) was employed to find individual and interactive effects of the mentioned parameter on yields of C2H6 was studied. The predicted values of the yield of C2H6 were found to be in good agreement with experimental values (R2= 0.97), which indicate the suitability of the CCD model.
format	Thesis
qualification_level	Master's degree
author	Dastan, Mohammadreza
author_facet	Dastan, Mohammadreza
author_sort	Dastan, Mohammadreza
title	Photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide
title_short	Photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide
title_full	Photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide
title_fullStr	Photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide
title_full_unstemmed	Photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide
title_sort	photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical Engineering
granting_department	Faculty of Chemical Engineering
publishDate	2014
url	http://eprints.utm.my/id/eprint/53625/25/MohammadrezaDastanMFKM2014.pdf
_version_	1747817597458448384

Photocatalytic reduction of carbon dioxide and methane to light hydrocarbons over nitrogen doped titanium dioxide

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