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Methane adsorption on KOH microwave treated porous carbon from sustainable coconut solid waste material

The shorter driving range is the challenge of compressed natural gas (CNG) as a vehicular fuel. In this study, adsorbent is prepared from coconut shells using KOH microwave activation to overcome the challenge of CNG storage system. The CNG storage system has some disadvantages which include high-pr...

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Main Authors: Hayatu, U. S., Nasri, N. S., Zain, H. M., Bdulrahman, A. A., Rashid, N. M.
Format: Article
Published: Italian Association of Chemical Engineering - AIDIC 2017
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TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/75884/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85030768514&doi=10.3303%2fCET1761206&partnerID=40&md5=618a74c1f745c1a5f6e1ae49361e617c
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spelling my.utm.758842018-05-30T04:07:03Z http://eprints.utm.my/id/eprint/75884/ Methane adsorption on KOH microwave treated porous carbon from sustainable coconut solid waste material Hayatu, U. S. Nasri, N. S. Zain, H. M. Bdulrahman, A. A. Rashid, N. M. TP Chemical technology The shorter driving range is the challenge of compressed natural gas (CNG) as a vehicular fuel. In this study, adsorbent is prepared from coconut shells using KOH microwave activation to overcome the challenge of CNG storage system. The CNG storage system has some disadvantages which include high-pressure operation with less safety guard, and heavy storage cylinders. The adsorbent is used as a potential Sorbent for methane (CH4) storage at different pressures. The coconut shell was carbonized from ambient temperature to 700 ± 20 °C at 10°C min-1 heating rate with 1 L min-1 N2 flow rate. The carbonization temperature of the precursor was determined using thermo-gravimetric and derivative thermogravimetric (TG/DTG) analysis. The activation was achieved with well modified microwave equipment operated at 500W and 5 minutes. The CH4 adsorption characteristics were conducted using volumetric adsorption equipment at an ambient temperature and pressures of 4, 5 and 7 bar. The CH4 uptake achieved at 4, 5 and 7 bar are 2.9707, 3.0559 and 3.6685 mmol g-1. The experimental data simulated using two common adsorption models: Langmuir and Freundlich. The experimental data was also evaluated using the common adsorption kinetic namely pseudo-first order, pseudosecond, order kinetics and Elovich. For the three initial pressures of 4, 5 and 7 bar, CH4 adsorption show more fits to pseudo-second order with R2> 0.967, R2 > 0.967 and R2> 0.960. The results reveal that coconut shell is a viable and sustainable material for synthesizing of the adsorbents for methane adsorption. Italian Association of Chemical Engineering - AIDIC 2017 Article PeerReviewed Hayatu, U. S. and Nasri, N. S. and Zain, H. M. and Bdulrahman, A. A. and Rashid, N. M. (2017) Methane adsorption on KOH microwave treated porous carbon from sustainable coconut solid waste material. Chemical Engineering Transactions, 61 . pp. 1249-1254. ISSN 2283-9216 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85030768514&doi=10.3303%2fCET1761206&partnerID=40&md5=618a74c1f745c1a5f6e1ae49361e617c
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Hayatu, U. S.
Nasri, N. S.
Zain, H. M.
Bdulrahman, A. A.
Rashid, N. M.
Methane adsorption on KOH microwave treated porous carbon from sustainable coconut solid waste material
description The shorter driving range is the challenge of compressed natural gas (CNG) as a vehicular fuel. In this study, adsorbent is prepared from coconut shells using KOH microwave activation to overcome the challenge of CNG storage system. The CNG storage system has some disadvantages which include high-pressure operation with less safety guard, and heavy storage cylinders. The adsorbent is used as a potential Sorbent for methane (CH4) storage at different pressures. The coconut shell was carbonized from ambient temperature to 700 ± 20 °C at 10°C min-1 heating rate with 1 L min-1 N2 flow rate. The carbonization temperature of the precursor was determined using thermo-gravimetric and derivative thermogravimetric (TG/DTG) analysis. The activation was achieved with well modified microwave equipment operated at 500W and 5 minutes. The CH4 adsorption characteristics were conducted using volumetric adsorption equipment at an ambient temperature and pressures of 4, 5 and 7 bar. The CH4 uptake achieved at 4, 5 and 7 bar are 2.9707, 3.0559 and 3.6685 mmol g-1. The experimental data simulated using two common adsorption models: Langmuir and Freundlich. The experimental data was also evaluated using the common adsorption kinetic namely pseudo-first order, pseudosecond, order kinetics and Elovich. For the three initial pressures of 4, 5 and 7 bar, CH4 adsorption show more fits to pseudo-second order with R2> 0.967, R2 > 0.967 and R2> 0.960. The results reveal that coconut shell is a viable and sustainable material for synthesizing of the adsorbents for methane adsorption.
format Article
author Hayatu, U. S.
Nasri, N. S.
Zain, H. M.
Bdulrahman, A. A.
Rashid, N. M.
author_facet Hayatu, U. S.
Nasri, N. S.
Zain, H. M.
Bdulrahman, A. A.
Rashid, N. M.
author_sort Hayatu, U. S.
title Methane adsorption on KOH microwave treated porous carbon from sustainable coconut solid waste material
title_short Methane adsorption on KOH microwave treated porous carbon from sustainable coconut solid waste material
title_full Methane adsorption on KOH microwave treated porous carbon from sustainable coconut solid waste material
title_fullStr Methane adsorption on KOH microwave treated porous carbon from sustainable coconut solid waste material
title_full_unstemmed Methane adsorption on KOH microwave treated porous carbon from sustainable coconut solid waste material
title_sort methane adsorption on koh microwave treated porous carbon from sustainable coconut solid waste material
publisher Italian Association of Chemical Engineering - AIDIC
publishDate 2017
url http://eprints.utm.my/id/eprint/75884/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85030768514&doi=10.3303%2fCET1761206&partnerID=40&md5=618a74c1f745c1a5f6e1ae49361e617c
_version_ 1643657186736340992
score 13.211869

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