Staff View: Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum

Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum

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Main Authors:	Younesi, Habibollah, Najafpour, Ghasem D., Ku Syahidah, Ku Ismail, Abdul Rahman, Mohamed, Azlina, Harun Kamaruddin
Format:	Article
Language:	English
Published:	Elsevier Ltd. 2009
Subjects:	Agitation rate and dilution rate Hydrogen Mass transfer Rhodospirillum rubrum Syngas Bioconversion Hydrogen as fuel Synthetic fuels Biomass energy
Online Access:	http://dspace.unimap.edu.my/xmlui/handle/123456789/6844
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spelling	my.unimap-68442009-08-12T04:50:33Z Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum Younesi, Habibollah Najafpour, Ghasem D. Ku Syahidah, Ku Ismail Abdul Rahman, Mohamed Azlina, Harun Kamaruddin Agitation rate and dilution rate Hydrogen Mass transfer Rhodospirillum rubrum Syngas Bioconversion Hydrogen as fuel Synthetic fuels Biomass energy Link to publisher's homepage at www.elsevier.com Hydrogen may be considered a potential fuel for the future since it is carbon-free and oxidized to water as a combustion product. Bioconversion of synthesis gas (syngas) to hydrogen was demonstrated in continuous stirred tank bioreactor (CSTBR) utilizing acetate as a carbon source. An anaerobic photosynthetic bacterium, Rhodospirillum rubrum catalyzed water-gas shift reaction which was applied for the bioconversion of syngas to hydrogen. The continuous fermentation of syngas in the bioreactor was continuously operated at various gas flow rates and agitation speeds, for the period of two months. The gas flow rates were varied from 5 to 14 ml/min. The agitation speeds were increasingly altered in the range of 150-500 rpm. The pH and temperature of the bioreactor was set at 6.5 and 30 °C. The liquid flow rate was kept constant at 0.65 ml/min for the duration of 60 days. The inlet acetate concentration was fed at 4 g/l into the bioreactor. The hydrogen production rate and yield were 16 ± 1.1 mmol g-1 cell h-1 and 87 ± 2.4% at fixed agitation speed of 500 rpm and syngas flow rate of 14 ml/min, respectively. The mass transfer coefficient (KLa) at this condition was approximately 72.8 h-1. This new approach, using a biocatalyst was considered as an alternative method of conventional Fischer-Tropsch synthetic reactions, which were able to convert syngas into hydrogen. 2009-08-12T04:50:19Z 2009-08-12T04:50:19Z 2007-05 Article Bioresource Technology, vol.99 (7), 2008, pages 2612-2619. 0960-8524 http://www.sciencedirect.com/science/journal/09608524 http://hdl.handle.net/123456789/6844 en Elsevier Ltd.
institution	Universiti Malaysia Perlis
building	UniMAP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Perlis
content_source	UniMAP Library Digital Repository
url_provider	http://dspace.unimap.edu.my/
language	English
topic	Agitation rate and dilution rate Hydrogen Mass transfer Rhodospirillum rubrum Syngas Bioconversion Hydrogen as fuel Synthetic fuels Biomass energy
spellingShingle	Agitation rate and dilution rate Hydrogen Mass transfer Rhodospirillum rubrum Syngas Bioconversion Hydrogen as fuel Synthetic fuels Biomass energy Younesi, Habibollah Najafpour, Ghasem D. Ku Syahidah, Ku Ismail Abdul Rahman, Mohamed Azlina, Harun Kamaruddin Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum
description	Link to publisher's homepage at www.elsevier.com
format	Article
author	Younesi, Habibollah Najafpour, Ghasem D. Ku Syahidah, Ku Ismail Abdul Rahman, Mohamed Azlina, Harun Kamaruddin
author_facet	Younesi, Habibollah Najafpour, Ghasem D. Ku Syahidah, Ku Ismail Abdul Rahman, Mohamed Azlina, Harun Kamaruddin
author_sort	Younesi, Habibollah
title	Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum
title_short	Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum
title_full	Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum
title_fullStr	Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum
title_full_unstemmed	Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum
title_sort	biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: rhodopirillum rubrum
publisher	Elsevier Ltd.
publishDate	2009
url	http://dspace.unimap.edu.my/xmlui/handle/123456789/6844
_version_	1643788639524618240
score	13.214268

Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum

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