Preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen

This study was carried out to investigate the potential of empty fruit bunch (EFB) based activated carbon (AC) as a phenol and hydrogen adsorbent. The precursor was prepared in laboratory tube furnace by carbonization in nitrogen flow followed by carbon dioxide activation at 900°C, 10°C/min under 15...

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Main Author:	Md. Arshad, Siti Hadjar
Format:	Thesis
Language:	English
Published:	2013
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/34664/5/SitiHadiarMdArshadMFKK2013.pdf
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spelling	my-utm-ep.346642017-07-23T01:56:24Z Preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen 2013-03 Md. Arshad, Siti Hadjar TP Chemical technology This study was carried out to investigate the potential of empty fruit bunch (EFB) based activated carbon (AC) as a phenol and hydrogen adsorbent. The precursor was prepared in laboratory tube furnace by carbonization in nitrogen flow followed by carbon dioxide activation at 900°C, 10°C/min under 15 minutes residence time and treatment with potassium hydroxide (KOH) solvent at different concentrations (i.e. 0.5M, 1.0M and 2.0M). The optimization study on carbonization parameters; temperature, heating rate, and residence time on the phenol removal was investigated by using response surface methodology (RSM) with box-benken design. The optimal process conditions obtained was; 500°C carbonization temperature, 10°C/min of heating rate, and 80 min of residence time; which given 7.57% of phenol removal. The best condition EFB fibre size was the one with greater than 2 mm mesh size; gave 73% of phenol removal. The kinetics of adsorption was well described by pseudo-second order model whilst the adsorption equilibrium was best represented by Langmuir isotherm model. Hydrogen adsorption study was analysed at ambient pressure by Accelerated Surface Area and Porosimetry analyzer (ASAP 2020) and at high pressure by high pressure volumetric analyzer (HPVA). The AC that was activated by physical and followed by impregnated with 2M KOH adsorbed a maximum hydrogen adsorption capacity value of 2.14 wt% at 19 bars and -196.15 °C. Regeneration study was carried out by sodium hydroxide (NaOH) treatment and the regeneration efficiency (RE) of the AC has been reduced to 42 % after the third treatment. The Breuner, Emmer and Teller (BET) study showed that the ACs produced have surface area between 489 to 687 m2/g. This study has identified EFB has a potential to be used as a precursor in the preparation of AC for phenol and hydrogen adsorbent. 2013-03 Thesis http://eprints.utm.my/id/eprint/34664/ http://eprints.utm.my/id/eprint/34664/5/SitiHadiarMdArshadMFKK2013.pdf application/pdf en public masters Universiti Teknologi Malaysia, 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 Md. Arshad, Siti Hadjar Preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen
description	This study was carried out to investigate the potential of empty fruit bunch (EFB) based activated carbon (AC) as a phenol and hydrogen adsorbent. The precursor was prepared in laboratory tube furnace by carbonization in nitrogen flow followed by carbon dioxide activation at 900°C, 10°C/min under 15 minutes residence time and treatment with potassium hydroxide (KOH) solvent at different concentrations (i.e. 0.5M, 1.0M and 2.0M). The optimization study on carbonization parameters; temperature, heating rate, and residence time on the phenol removal was investigated by using response surface methodology (RSM) with box-benken design. The optimal process conditions obtained was; 500°C carbonization temperature, 10°C/min of heating rate, and 80 min of residence time; which given 7.57% of phenol removal. The best condition EFB fibre size was the one with greater than 2 mm mesh size; gave 73% of phenol removal. The kinetics of adsorption was well described by pseudo-second order model whilst the adsorption equilibrium was best represented by Langmuir isotherm model. Hydrogen adsorption study was analysed at ambient pressure by Accelerated Surface Area and Porosimetry analyzer (ASAP 2020) and at high pressure by high pressure volumetric analyzer (HPVA). The AC that was activated by physical and followed by impregnated with 2M KOH adsorbed a maximum hydrogen adsorption capacity value of 2.14 wt% at 19 bars and -196.15 °C. Regeneration study was carried out by sodium hydroxide (NaOH) treatment and the regeneration efficiency (RE) of the AC has been reduced to 42 % after the third treatment. The Breuner, Emmer and Teller (BET) study showed that the ACs produced have surface area between 489 to 687 m2/g. This study has identified EFB has a potential to be used as a precursor in the preparation of AC for phenol and hydrogen adsorbent.
format	Thesis
qualification_level	Master's degree
author	Md. Arshad, Siti Hadjar
author_facet	Md. Arshad, Siti Hadjar
author_sort	Md. Arshad, Siti Hadjar
title	Preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen
title_short	Preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen
title_full	Preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen
title_fullStr	Preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen
title_full_unstemmed	Preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen
title_sort	preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen
granting_institution	Universiti Teknologi Malaysia, Universiti Teknologi Malaysia, Faculty of Chemical Engineering
granting_department	Faculty of Chemical Engineering
publishDate	2013
url	http://eprints.utm.my/id/eprint/34664/5/SitiHadiarMdArshadMFKK2013.pdf
_version_	1747816229364563968

Preparation of activated carbon from oil palm empty fruit bunch for adsorption of phenol and hydrogen

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