Hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst

Hydrogen has been recognized as a sustainable and renewable energy carrier for the portable application. Acetic acid and phenol are considered as the unwanted product in the bio-oil derived from the pyrolysis of biomass. This study is to propose the catalytic steam reforming of the mixture over bime...

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Main Author:	Nabgan, Bahador
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/50739/25/BahadorNabganMFChE2014.pdf
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spelling	my-utm-ep.507392020-07-12T00:31:41Z Hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst 2014-11 Nabgan, Bahador TP Chemical technology Hydrogen has been recognized as a sustainable and renewable energy carrier for the portable application. Acetic acid and phenol are considered as the unwanted product in the bio-oil derived from the pyrolysis of biomass. This study is to propose the catalytic steam reforming of the mixture over bimetallic Nickel-Cobalt (Ni-Co) supported on Lanthanum (III) Oxide (La2O3) and gamma-aluminum oxide (?- Al2O3). The scope of works including the catalyst characterization and the catalyst testing in a fixed bed reactor operated at ambient pressure. The catalyst performance tests are carried out in a fixed bed reactor at atmospheric pressure and temperature from 600°C to 800°C to compare the catalyst dilution, feed flow rate in the range of 0.16 to 0.56 mL/min, and the catalyst weight of 0.1 to 0.3 g. The acidity of the prepared catalyst is less than ?-Al2O3 but higher than La2O3. The total surface area of the fresh catalyst decreased by exposing in the reaction from 48 to 30 m2/g. It was found that the maximum feed conversion achieved 99.99% for acetic acid and 95.5% conversion for phenol at 800 oC in the effect of temperature by using catalyst dilution of silicone carbide (SiC). Instead, hydrogen yield and mole fraction decreased with the presence of dilution. The highest temperature of 800 oC in this study, and the other parameters like 0.2 gram catalyst and 0.36 ml/min flow rate achieved the highest hydrogen gas which was about 98%. It was resulted that the presence of SiC was able to increase the conversion of feed due to extension of residence time but it affected negatively in hydrogen yield. Hydrogen production also increased by increasing of phenol and acetic acid concentration. The catalyst did not show a significant deactivation for the period of study. This catalyst is promising for the real application. 2014-11 Thesis http://eprints.utm.my/id/eprint/50739/ http://eprints.utm.my/id/eprint/50739/25/BahadorNabganMFChE2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:85477 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 Nabgan, Bahador Hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst
description	Hydrogen has been recognized as a sustainable and renewable energy carrier for the portable application. Acetic acid and phenol are considered as the unwanted product in the bio-oil derived from the pyrolysis of biomass. This study is to propose the catalytic steam reforming of the mixture over bimetallic Nickel-Cobalt (Ni-Co) supported on Lanthanum (III) Oxide (La2O3) and gamma-aluminum oxide (?- Al2O3). The scope of works including the catalyst characterization and the catalyst testing in a fixed bed reactor operated at ambient pressure. The catalyst performance tests are carried out in a fixed bed reactor at atmospheric pressure and temperature from 600°C to 800°C to compare the catalyst dilution, feed flow rate in the range of 0.16 to 0.56 mL/min, and the catalyst weight of 0.1 to 0.3 g. The acidity of the prepared catalyst is less than ?-Al2O3 but higher than La2O3. The total surface area of the fresh catalyst decreased by exposing in the reaction from 48 to 30 m2/g. It was found that the maximum feed conversion achieved 99.99% for acetic acid and 95.5% conversion for phenol at 800 oC in the effect of temperature by using catalyst dilution of silicone carbide (SiC). Instead, hydrogen yield and mole fraction decreased with the presence of dilution. The highest temperature of 800 oC in this study, and the other parameters like 0.2 gram catalyst and 0.36 ml/min flow rate achieved the highest hydrogen gas which was about 98%. It was resulted that the presence of SiC was able to increase the conversion of feed due to extension of residence time but it affected negatively in hydrogen yield. Hydrogen production also increased by increasing of phenol and acetic acid concentration. The catalyst did not show a significant deactivation for the period of study. This catalyst is promising for the real application.
format	Thesis
qualification_level	Master's degree
author	Nabgan, Bahador
author_facet	Nabgan, Bahador
author_sort	Nabgan, Bahador
title	Hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst
title_short	Hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst
title_full	Hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst
title_fullStr	Hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst
title_full_unstemmed	Hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst
title_sort	hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical Engineering
granting_department	Faculty of Chemical Engineering
publishDate	2014
url	http://eprints.utm.my/id/eprint/50739/25/BahadorNabganMFChE2014.pdf
_version_	1747817524658962432

Hydrogen production from acetic acid-phenol steam reforming over bimetallic nickel-cobalt supported on lanthanum oxide-gamma aluminum oxide catalyst

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