Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies

Syngas (or H2 and CO mixture) production has received significant attention since it is the main feedstock of Fischer-Tropsch synthesis for synthetic fuel manufacture to replace petroleum-based energy. Dry reforming of methane (DRM) has been considered as an efficient and green approach for producin...

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Main Author:	Muhamad Hisyam, Zakaria
Format:	Undergraduates Project Papers
Language:	English English English
Published:	2015
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/12751/ http://umpir.ump.edu.my/id/eprint/12751/ http://umpir.ump.edu.my/id/eprint/12751/1/FKKSA%20-%20MUHAMAD%20HISYAM%20ZAKARIA%20-%20CD%209525.pdf http://umpir.ump.edu.my/id/eprint/12751/2/FKKSA%20-%20MUHAMAD%20HISYAM%20ZAKARIA%20-%20CD%209525%20-%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/12751/3/FKKSA%20-%20MUHAMAD%20HISYAM%20ZAKARIA%20-%20CD%209525%20-%20CHAP%203.pdf

id	ump-12751
recordtype	eprints
spelling	ump-127512016-04-07T08:02:56Z http://umpir.ump.edu.my/id/eprint/12751/ Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies Muhamad Hisyam, Zakaria TP Chemical technology Syngas (or H2 and CO mixture) production has received significant attention since it is the main feedstock of Fischer-Tropsch synthesis for synthetic fuel manufacture to replace petroleum-based energy. Dry reforming of methane (DRM) has been considered as an efficient and green approach for producing syngas due to greenhouse gas utilization and desired syngas composition. In this research, the objectives were to prepare 3%Ce-10%Ni/Al2O3, to investigate the physicochemical attributes of 3%Ce-10%Ni/Al2O3 catalyst and examine the effect of reactant partial pressure on DRM performance. XRD diffractograms indicated the formation of CeO2, NiO and NiAl2O4 phases corroborated with temperature-programmed calcination (TPC) results. The complete thermal decomposition and oxidation of metal precursors were observed at 750 K during TPC measurement. DRM performance over 3%Ce-10%Ni/Al2O3 catalyst was stable with time-on-stream for all CO2:CH4 ratios. CH4 and CO2 reaction rates enhanced with growing CO2 partial pressure (PCO2) and exhibited a maximum at PCO2=30 kPa. CH4 conversion enhanced with growing CO2 partial pressure (PCO2) and exhibited a maximum at PCO2=40 kPa and CO2 conversion vice versa to the CH4 conversion. H2 , CO selectivity and yield enhanced with lessen CO2 partial pressure (PCO2) and exhibited a maximum at PCO2=20 kPa. Interestingly, H2/CO ratio also reduced with an increase in CO2 partial pressure and the ratio of H2/CO was always inferior to unity for all runs reasonably due to the reverse water-gas shift reaction. 2015-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12751/1/FKKSA%20-%20MUHAMAD%20HISYAM%20ZAKARIA%20-%20CD%209525.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12751/2/FKKSA%20-%20MUHAMAD%20HISYAM%20ZAKARIA%20-%20CD%209525%20-%20CHAP%201.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12751/3/FKKSA%20-%20MUHAMAD%20HISYAM%20ZAKARIA%20-%20CD%209525%20-%20CHAP%203.pdf Muhamad Hisyam, Zakaria (2015) Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:93521&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Muhamad Hisyam, Zakaria Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies
description	Syngas (or H2 and CO mixture) production has received significant attention since it is the main feedstock of Fischer-Tropsch synthesis for synthetic fuel manufacture to replace petroleum-based energy. Dry reforming of methane (DRM) has been considered as an efficient and green approach for producing syngas due to greenhouse gas utilization and desired syngas composition. In this research, the objectives were to prepare 3%Ce-10%Ni/Al2O3, to investigate the physicochemical attributes of 3%Ce-10%Ni/Al2O3 catalyst and examine the effect of reactant partial pressure on DRM performance. XRD diffractograms indicated the formation of CeO2, NiO and NiAl2O4 phases corroborated with temperature-programmed calcination (TPC) results. The complete thermal decomposition and oxidation of metal precursors were observed at 750 K during TPC measurement. DRM performance over 3%Ce-10%Ni/Al2O3 catalyst was stable with time-on-stream for all CO2:CH4 ratios. CH4 and CO2 reaction rates enhanced with growing CO2 partial pressure (PCO2) and exhibited a maximum at PCO2=30 kPa. CH4 conversion enhanced with growing CO2 partial pressure (PCO2) and exhibited a maximum at PCO2=40 kPa and CO2 conversion vice versa to the CH4 conversion. H2 , CO selectivity and yield enhanced with lessen CO2 partial pressure (PCO2) and exhibited a maximum at PCO2=20 kPa. Interestingly, H2/CO ratio also reduced with an increase in CO2 partial pressure and the ratio of H2/CO was always inferior to unity for all runs reasonably due to the reverse water-gas shift reaction.
format	Undergraduates Project Papers
author	Muhamad Hisyam, Zakaria
author_facet	Muhamad Hisyam, Zakaria
author_sort	Muhamad Hisyam, Zakaria
title	Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies
title_short	Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies
title_full	Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies
title_fullStr	Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies
title_full_unstemmed	Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies
title_sort	methane dry reforming over ce-promoted ni/al2o3 catalyst : kinetic studies
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/12751/ http://umpir.ump.edu.my/id/eprint/12751/ http://umpir.ump.edu.my/id/eprint/12751/1/FKKSA%20-%20MUHAMAD%20HISYAM%20ZAKARIA%20-%20CD%209525.pdf http://umpir.ump.edu.my/id/eprint/12751/2/FKKSA%20-%20MUHAMAD%20HISYAM%20ZAKARIA%20-%20CD%209525%20-%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/12751/3/FKKSA%20-%20MUHAMAD%20HISYAM%20ZAKARIA%20-%20CD%209525%20-%20CHAP%203.pdf
first_indexed	2023-09-18T22:14:39Z
last_indexed	2023-09-18T22:14:39Z
_version_	1777415256064131072

Methane dry reforming over Ce-promoted Ni/Al2O3 catalyst : kinetic studies

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