Hydrogen-rich syngas production from steam reforming of palm oil mill effluent (POME) over LaNiO3 & LaCoO3 catalysts

The flourishing development of local oil palm industry inflicts concomitant generation of enormous, highly polluted palm oil mill effluent (POME). The prevalent open ponding treatment was land-intensive, sluggish, and incompetent to degrade POME to below discharge threshold yet being accused for gre...

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Main Author:	Cheng, Yoke Wang
Format:	Thesis
Language:	English
Published:	2019
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/30021/1/Hydrogen-rich%20syngas%20production%20from%20steam%20reforming%20of%20palm%20oil%20mill.pdf
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id	my-ump-ir.30021
record_format	uketd_dc
spelling	my-ump-ir.300212020-11-24T01:36:26Z Hydrogen-rich syngas production from steam reforming of palm oil mill effluent (POME) over LaNiO3 & LaCoO3 catalysts 2019-07 Cheng, Yoke Wang TP Chemical technology The flourishing development of local oil palm industry inflicts concomitant generation of enormous, highly polluted palm oil mill effluent (POME). The prevalent open ponding treatment was land-intensive, sluggish, and incompetent to degrade POME to below discharge threshold yet being accused for greenhouse gases (CO2 and CH4) emission. This study investigated the potentiality of novel catalytic POME steam reforming over LaNiO3 and LaCoO3 to valorise pollutant-laden POME into valuable H2-rich syngas. The POME feedstock was a brownish (A = ~1.93), acidic (pH of 5), and highly polluted (COD = ~70000 mg/L, BOD5 = ~11000 mg/L, and TSS = ~7700 mg/L) wastewater. POME was composed of 99.73 mol% water and 0.27 mol% organics (mainly carboxylic acids, phenol, and alcohols). Through minimisation of total Gibbs free energy, thermodynamic simulation from 573 – 1173 K confirmed syngas production from POME steam reforming and predicted the likelihood of side reactions. Subsequently, LaNiO3 and LaCoO3 were synthesised using modified citrate sol-gel route. Combination of CO2-TPD and NH3-TPD asserted the net-acidity of LaNiO3 and the net-basicity of LaCoO3. Before POME steam reforming, the catalysts were reduced by H2 to form well dispersed active metal (Ni or Co) on La2O3 support. Specifically, the active metal catalysed the reaction while the La2O3 support suppressed the coking deactivation. For both catalytic POME steam reforming, the optimum syngas yield and degradation efficiencies were determined by tuning temperature ( 2019-07 Thesis http://umpir.ump.edu.my/id/eprint/30021/ http://umpir.ump.edu.my/id/eprint/30021/1/Hydrogen-rich%20syngas%20production%20from%20steam%20reforming%20of%20palm%20oil%20mill.pdf pdf en public phd doctoral Universiti Malaysia Pahang Faculty of Chemical and Natural Resources Engineering
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
collection	UMPSA Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Cheng, Yoke Wang Hydrogen-rich syngas production from steam reforming of palm oil mill effluent (POME) over LaNiO3 & LaCoO3 catalysts
description	The flourishing development of local oil palm industry inflicts concomitant generation of enormous, highly polluted palm oil mill effluent (POME). The prevalent open ponding treatment was land-intensive, sluggish, and incompetent to degrade POME to below discharge threshold yet being accused for greenhouse gases (CO2 and CH4) emission. This study investigated the potentiality of novel catalytic POME steam reforming over LaNiO3 and LaCoO3 to valorise pollutant-laden POME into valuable H2-rich syngas. The POME feedstock was a brownish (A = ~1.93), acidic (pH of 5), and highly polluted (COD = ~70000 mg/L, BOD5 = ~11000 mg/L, and TSS = ~7700 mg/L) wastewater. POME was composed of 99.73 mol% water and 0.27 mol% organics (mainly carboxylic acids, phenol, and alcohols). Through minimisation of total Gibbs free energy, thermodynamic simulation from 573 – 1173 K confirmed syngas production from POME steam reforming and predicted the likelihood of side reactions. Subsequently, LaNiO3 and LaCoO3 were synthesised using modified citrate sol-gel route. Combination of CO2-TPD and NH3-TPD asserted the net-acidity of LaNiO3 and the net-basicity of LaCoO3. Before POME steam reforming, the catalysts were reduced by H2 to form well dispersed active metal (Ni or Co) on La2O3 support. Specifically, the active metal catalysed the reaction while the La2O3 support suppressed the coking deactivation. For both catalytic POME steam reforming, the optimum syngas yield and degradation efficiencies were determined by tuning temperature (
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Cheng, Yoke Wang
author_facet	Cheng, Yoke Wang
author_sort	Cheng, Yoke Wang
title	Hydrogen-rich syngas production from steam reforming of palm oil mill effluent (POME) over LaNiO3 & LaCoO3 catalysts
title_short	Hydrogen-rich syngas production from steam reforming of palm oil mill effluent (POME) over LaNiO3 & LaCoO3 catalysts
title_full	Hydrogen-rich syngas production from steam reforming of palm oil mill effluent (POME) over LaNiO3 & LaCoO3 catalysts
title_fullStr	Hydrogen-rich syngas production from steam reforming of palm oil mill effluent (POME) over LaNiO3 & LaCoO3 catalysts
title_full_unstemmed	Hydrogen-rich syngas production from steam reforming of palm oil mill effluent (POME) over LaNiO3 & LaCoO3 catalysts
title_sort	hydrogen-rich syngas production from steam reforming of palm oil mill effluent (pome) over lanio3 & lacoo3 catalysts
granting_institution	Universiti Malaysia Pahang
granting_department	Faculty of Chemical and Natural Resources Engineering
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/30021/1/Hydrogen-rich%20syngas%20production%20from%20steam%20reforming%20of%20palm%20oil%20mill.pdf
_version_	1783732129861992448

Hydrogen-rich syngas production from steam reforming of palm oil mill effluent (POME) over LaNiO3 & LaCoO3 catalysts

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