Utilization of low-grade iron ore in ammonia decomposition

Due to its cleanliness, fast energy cycle, and convenience of energy conversion, hydrogen has been regarded as the new energy source. Conventional process to produce hydrogen yield large amount of CO as byproduct. Moreover, the hydrogen storage and transportation have become the drawbacks in hydroge...

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Main Authors:	Othman, Nur Ezzah Faezah, Mohd. Salleh, Hamzah, Purwanto, Hadi
Format:	Article
Language:	English
Published:	Elsevier 2016
Subjects:	TN600 Metallurgy
Online Access:	http://irep.iium.edu.my/50293/ http://irep.iium.edu.my/50293/ http://irep.iium.edu.my/50293/ http://irep.iium.edu.my/50293/1/procedia_chemstry-ezzah-2016.pdf

id	iium-50293
recordtype	eprints
spelling	iium-502932017-10-23T04:08:42Z http://irep.iium.edu.my/50293/ Utilization of low-grade iron ore in ammonia decomposition Othman, Nur Ezzah Faezah Mohd. Salleh, Hamzah Purwanto, Hadi TN600 Metallurgy Due to its cleanliness, fast energy cycle, and convenience of energy conversion, hydrogen has been regarded as the new energy source. Conventional process to produce hydrogen yield large amount of CO as byproduct. Moreover, the hydrogen storage and transportation have become the drawbacks in hydrogen economy. Thus, there has been increased interest in the hydrogen transportation medium as alternatives from the conventional process to produce and transport hydrogen. Ammonia has drawn worldwide attention as the most reliable hydrogen transportation medium. Through the decomposition of ammonia, hydrogen and nitrogen gas were produces as the byproduct without any CO or CO2 emission. In this experiment, the ore were introduced as the medium for ammonia decomposition. The ore were put into quartz tube reactor and were dehydrated at 400°C for 1 hour, then hydrogen reduced for 2 hours before and undergone ammonia decomposition at 500-700°C for 3 hours. The effects of temperature to the % conversion of ammonia decomposition were also studied. Ammonia decomposition at higher temperature gives higher conversion. As seen in the results, the NH3 conversion decreased with increasing time and the value after 3 hours of reaction increased in the sequence of 500°C<600°C< 700°C. During ammonia decomposition, nitriding of iron occurred. The relation between temperature and the nitriding potential, KN is also investigated. The purpose of this study is to investigate the utilization of low-grade ore as medium for ammonia decomposition to produce hydrogen Elsevier 2016-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/50293/1/procedia_chemstry-ezzah-2016.pdf Othman, Nur Ezzah Faezah and Mohd. Salleh, Hamzah and Purwanto, Hadi (2016) Utilization of low-grade iron ore in ammonia decomposition. Procedia Chemistry, 19. pp. 119-124. ISSN 1876-6196 http://www.sciencedirect.com/science/article/pii/S1876619616001704 10.1016/j.proche.2016.03.124
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TN600 Metallurgy
spellingShingle	TN600 Metallurgy Othman, Nur Ezzah Faezah Mohd. Salleh, Hamzah Purwanto, Hadi Utilization of low-grade iron ore in ammonia decomposition
description	Due to its cleanliness, fast energy cycle, and convenience of energy conversion, hydrogen has been regarded as the new energy source. Conventional process to produce hydrogen yield large amount of CO as byproduct. Moreover, the hydrogen storage and transportation have become the drawbacks in hydrogen economy. Thus, there has been increased interest in the hydrogen transportation medium as alternatives from the conventional process to produce and transport hydrogen. Ammonia has drawn worldwide attention as the most reliable hydrogen transportation medium. Through the decomposition of ammonia, hydrogen and nitrogen gas were produces as the byproduct without any CO or CO2 emission. In this experiment, the ore were introduced as the medium for ammonia decomposition. The ore were put into quartz tube reactor and were dehydrated at 400°C for 1 hour, then hydrogen reduced for 2 hours before and undergone ammonia decomposition at 500-700°C for 3 hours. The effects of temperature to the % conversion of ammonia decomposition were also studied. Ammonia decomposition at higher temperature gives higher conversion. As seen in the results, the NH3 conversion decreased with increasing time and the value after 3 hours of reaction increased in the sequence of 500°C<600°C< 700°C. During ammonia decomposition, nitriding of iron occurred. The relation between temperature and the nitriding potential, KN is also investigated. The purpose of this study is to investigate the utilization of low-grade ore as medium for ammonia decomposition to produce hydrogen
format	Article
author	Othman, Nur Ezzah Faezah Mohd. Salleh, Hamzah Purwanto, Hadi
author_facet	Othman, Nur Ezzah Faezah Mohd. Salleh, Hamzah Purwanto, Hadi
author_sort	Othman, Nur Ezzah Faezah
title	Utilization of low-grade iron ore in ammonia decomposition
title_short	Utilization of low-grade iron ore in ammonia decomposition
title_full	Utilization of low-grade iron ore in ammonia decomposition
title_fullStr	Utilization of low-grade iron ore in ammonia decomposition
title_full_unstemmed	Utilization of low-grade iron ore in ammonia decomposition
title_sort	utilization of low-grade iron ore in ammonia decomposition
publisher	Elsevier
publishDate	2016
url	http://irep.iium.edu.my/50293/ http://irep.iium.edu.my/50293/ http://irep.iium.edu.my/50293/ http://irep.iium.edu.my/50293/1/procedia_chemstry-ezzah-2016.pdf
first_indexed	2023-09-18T21:11:05Z
last_indexed	2023-09-18T21:11:05Z
_version_	1777411256987156480

Utilization of low-grade iron ore in ammonia decomposition

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