Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst

Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst

In this study, the kinetics of glycerol pyrolysis over a 3wt%Pr-20wt%Ni/77wt%α-Al2O3 catalyst was investigated. The catalyst was synthesized via wet-impregnation method and was characterized using temperature-programmed calcination (TPC), temperature-programmed reduction (TPR), N2-physisorption, FES...

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Main Authors: Nor Shahirah, Mohd Nasir, Ayodele, Bamidele V., Jolius, Gimbun, Lam, Su Shiung, Cheng, C. K.
Format: Article
Language:English
English
Published: Elsevier Ltd 2016
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/14876/
http://umpir.ump.edu.my/id/eprint/14876/
http://umpir.ump.edu.my/id/eprint/14876/
http://umpir.ump.edu.my/id/eprint/14876/1/pagination_ATE_9328.pdf
http://umpir.ump.edu.my/id/eprint/14876/7/fkksa-2016-ck-Renewable%20Syngas%20Production%20from%20Thermal%20Cracking%20of%20Glycerol.pdf
id ump-14876
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spelling ump-148762019-08-28T03:23:47Z http://umpir.ump.edu.my/id/eprint/14876/ Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst Nor Shahirah, Mohd Nasir Ayodele, Bamidele V. Jolius, Gimbun Lam, Su Shiung Cheng, C. K. TP Chemical technology In this study, the kinetics of glycerol pyrolysis over a 3wt%Pr-20wt%Ni/77wt%α-Al2O3 catalyst was investigated. The catalyst was synthesized via wet-impregnation method and was characterized using temperature-programmed calcination (TPC), temperature-programmed reduction (TPR), N2-physisorption, FESEM imaging, X-ray diffraction and CO2-/NH3-temperature-programmed desorption (TPD). The catalytic activity of the as-synthesized 3wt% Pr-Ni/α-Al2O3 catalyst was evaluated in a stainless steel fixed bed reactor at temperatures that ranged from 973 K to 1073 K and a weight-hourly-space-velocity (WHSV) of 4.5×104 ml g-1 h-1 under the atmospheric condition. The main gaseous products from catalytic glycerol pyrolysis were H2, CO, CO2 and CH4 (descending ranking) with the highest H2 formation rate and H2 yield of 0.02593 mol g cat−1 s−1 and 29.04%, respectively. The analysis of the kinetic data obtained from the glycerol pyrolysis showed activation energy of 37.36 kJ mol-1. Based on the mechanistic modeling, it can be deduced that the rate determining step of the glycerol pyrolysis was via a single site associative adsorption with molecular surface reaction as the rate-determining step. Elsevier Ltd 2016-10-21 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/14876/1/pagination_ATE_9328.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/14876/7/fkksa-2016-ck-Renewable%20Syngas%20Production%20from%20Thermal%20Cracking%20of%20Glycerol.pdf Nor Shahirah, Mohd Nasir and Ayodele, Bamidele V. and Jolius, Gimbun and Lam, Su Shiung and Cheng, C. K. (2016) Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst. Applied Thermal Engineering, 112. pp. 871-880. ISSN 1359-4311 http://dx.doi.org/10.1016/j.applthermaleng.2016.10.126 doi:10.1016/j.applthermaleng.2016.10.126
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
English
topic TP Chemical technology
spellingShingle TP Chemical technology
Nor Shahirah, Mohd Nasir
Ayodele, Bamidele V.
Jolius, Gimbun
Lam, Su Shiung
Cheng, C. K.
Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst
description In this study, the kinetics of glycerol pyrolysis over a 3wt%Pr-20wt%Ni/77wt%α-Al2O3 catalyst was investigated. The catalyst was synthesized via wet-impregnation method and was characterized using temperature-programmed calcination (TPC), temperature-programmed reduction (TPR), N2-physisorption, FESEM imaging, X-ray diffraction and CO2-/NH3-temperature-programmed desorption (TPD). The catalytic activity of the as-synthesized 3wt% Pr-Ni/α-Al2O3 catalyst was evaluated in a stainless steel fixed bed reactor at temperatures that ranged from 973 K to 1073 K and a weight-hourly-space-velocity (WHSV) of 4.5×104 ml g-1 h-1 under the atmospheric condition. The main gaseous products from catalytic glycerol pyrolysis were H2, CO, CO2 and CH4 (descending ranking) with the highest H2 formation rate and H2 yield of 0.02593 mol g cat−1 s−1 and 29.04%, respectively. The analysis of the kinetic data obtained from the glycerol pyrolysis showed activation energy of 37.36 kJ mol-1. Based on the mechanistic modeling, it can be deduced that the rate determining step of the glycerol pyrolysis was via a single site associative adsorption with molecular surface reaction as the rate-determining step.
format Article
author Nor Shahirah, Mohd Nasir
Ayodele, Bamidele V.
Jolius, Gimbun
Lam, Su Shiung
Cheng, C. K.
author_facet Nor Shahirah, Mohd Nasir
Ayodele, Bamidele V.
Jolius, Gimbun
Lam, Su Shiung
Cheng, C. K.
author_sort Nor Shahirah, Mohd Nasir
title Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst
title_short Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst
title_full Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst
title_fullStr Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst
title_full_unstemmed Renewable Syngas Production from Thermal Cracking of Glycerol over Praseodymium-Promoted Ni/Al2O3 Catalyst
title_sort renewable syngas production from thermal cracking of glycerol over praseodymium-promoted ni/al2o3 catalyst
publisher Elsevier Ltd
publishDate 2016
url http://umpir.ump.edu.my/id/eprint/14876/
http://umpir.ump.edu.my/id/eprint/14876/
http://umpir.ump.edu.my/id/eprint/14876/
http://umpir.ump.edu.my/id/eprint/14876/1/pagination_ATE_9328.pdf
http://umpir.ump.edu.my/id/eprint/14876/7/fkksa-2016-ck-Renewable%20Syngas%20Production%20from%20Thermal%20Cracking%20of%20Glycerol.pdf
first_indexed 2023-09-18T22:19:07Z
last_indexed 2023-09-18T22:19:07Z
_version_ 1777415537334157312

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