Microalgae biorefinery alternatives and hazard evaluation

Biodiesel production based on microalgae and using carbon dioxide as feedstock constitutes an attractive biofuel alternative. Technology development and process optimization are necessary to minimize the overall production cost. Moreover, in the framework of process sustainability, social and enviro...

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Authors: Pinedo Alonso, Javier|||0000-0003-2036-9246, García Prieto, C.V., D'Alessandro, Agustín A., Ibáñez Mendizábal, Raquel|||0000-0002-0432-1827, Tonelli, Stella M., Díaz, María Soledad, Irabien Gulías, Ángel|||0000-0002-2411-4163
Format: article
Publication Date:2016
Country:España
Institution:Universidad de Cantabria (UC)
Repository:UCrea Repositorio Abierto de la Universidad de Cantabria
Language:English
OAI Identifier:oai:repositorio.unican.es:10902/11163
Online Access:http://hdl.handle.net/10902/11163
Access Level:Open access
Keyword:Microalgae
Biorefinery
Optimization
Hazard evaluation
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spelling Microalgae biorefinery alternatives and hazard evaluationPinedo Alonso, Javier|||0000-0003-2036-9246García Prieto, C.V.D'Alessandro, Agustín A.Ibáñez Mendizábal, Raquel|||0000-0002-0432-1827Tonelli, Stella M.Díaz, María SoledadIrabien Gulías, Ángel|||0000-0002-2411-4163MicroalgaeBiorefineryOptimizationHazard evaluationBiodiesel production based on microalgae and using carbon dioxide as feedstock constitutes an attractive biofuel alternative. Technology development and process optimization are necessary to minimize the overall production cost. Moreover, in the framework of process sustainability, social and environmental impacts should include process safety aspects. In this context, the objective of this work is to develop a biodiesel production process based on microalgae and the subsequent estimation of the associated risks, thus contributing to more sustainable and safe processes. The biodiesel biorefinery is optimized, taking into account alternative configurations for algae cultivation and lipid extraction. Algae cultivation options are open ponds and tubular photobioreactors. Regarding lipid extraction, dewatering and subsequent n-hexane extraction, and combined ethanol/n-hexane extraction are the studied alternatives. Numerical results showed that open ponds and n-hexane extraction provide maximum net present value. However, n-hexane consumption dramatically rises, and industrial hazards have not been considered in the optimization process. To overcome this issue, a preliminary hazard analysis is carried out to identify hazardous materials and operations. Event trees are formulated to derive the frequencies of different accident scenarios, further determining the consequences. The major consequences of accidents involve toxic releases of high quantities of n-hexane. By comparing the proposed alternatives, this work aims to highlight the need to consider not only economic but also safety and environmental objectives in the development of a biodiesel production project.The authors are grateful for the financial support provided by CONICET and the Spanish MICINN under projects CTQ2013-48280-C3-1-R and CTM2014-57833-R. J. Pinedo would also like to thank the financial support provided by “Becas Iberoamérica JPI España 2014”.Institution of Chemical EngineersUniversidad de Cantabria20162016-03-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/11163Chemical Engineering Research and Design, 2016, 107, 117-125reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/111632026-06-02T12:39:31Z
dc.title.none.fl_str_mv Microalgae biorefinery alternatives and hazard evaluation
title Microalgae biorefinery alternatives and hazard evaluation
spellingShingle Microalgae biorefinery alternatives and hazard evaluation
Pinedo Alonso, Javier|||0000-0003-2036-9246
Microalgae
Biorefinery
Optimization
Hazard evaluation
title_short Microalgae biorefinery alternatives and hazard evaluation
title_full Microalgae biorefinery alternatives and hazard evaluation
title_fullStr Microalgae biorefinery alternatives and hazard evaluation
title_full_unstemmed Microalgae biorefinery alternatives and hazard evaluation
title_sort Microalgae biorefinery alternatives and hazard evaluation
dc.creator.none.fl_str_mv Pinedo Alonso, Javier|||0000-0003-2036-9246
García Prieto, C.V.
D'Alessandro, Agustín A.
Ibáñez Mendizábal, Raquel|||0000-0002-0432-1827
Tonelli, Stella M.
Díaz, María Soledad
Irabien Gulías, Ángel|||0000-0002-2411-4163
author Pinedo Alonso, Javier|||0000-0003-2036-9246
author_facet Pinedo Alonso, Javier|||0000-0003-2036-9246
García Prieto, C.V.
D'Alessandro, Agustín A.
Ibáñez Mendizábal, Raquel|||0000-0002-0432-1827
Tonelli, Stella M.
Díaz, María Soledad
Irabien Gulías, Ángel|||0000-0002-2411-4163
author_role author
author2 García Prieto, C.V.
D'Alessandro, Agustín A.
Ibáñez Mendizábal, Raquel|||0000-0002-0432-1827
Tonelli, Stella M.
Díaz, María Soledad
Irabien Gulías, Ángel|||0000-0002-2411-4163
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Microalgae
Biorefinery
Optimization
Hazard evaluation
topic Microalgae
Biorefinery
Optimization
Hazard evaluation
description Biodiesel production based on microalgae and using carbon dioxide as feedstock constitutes an attractive biofuel alternative. Technology development and process optimization are necessary to minimize the overall production cost. Moreover, in the framework of process sustainability, social and environmental impacts should include process safety aspects. In this context, the objective of this work is to develop a biodiesel production process based on microalgae and the subsequent estimation of the associated risks, thus contributing to more sustainable and safe processes. The biodiesel biorefinery is optimized, taking into account alternative configurations for algae cultivation and lipid extraction. Algae cultivation options are open ponds and tubular photobioreactors. Regarding lipid extraction, dewatering and subsequent n-hexane extraction, and combined ethanol/n-hexane extraction are the studied alternatives. Numerical results showed that open ponds and n-hexane extraction provide maximum net present value. However, n-hexane consumption dramatically rises, and industrial hazards have not been considered in the optimization process. To overcome this issue, a preliminary hazard analysis is carried out to identify hazardous materials and operations. Event trees are formulated to derive the frequencies of different accident scenarios, further determining the consequences. The major consequences of accidents involve toxic releases of high quantities of n-hexane. By comparing the proposed alternatives, this work aims to highlight the need to consider not only economic but also safety and environmental objectives in the development of a biodiesel production project.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-03-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/11163
url http://hdl.handle.net/10902/11163
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Institution of Chemical Engineers
publisher.none.fl_str_mv Institution of Chemical Engineers
dc.source.none.fl_str_mv Chemical Engineering Research and Design, 2016, 107, 117-125
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403875001237504
score 15,301603

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