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The benefits of ethanol use for hydrogen production in urban transportation
Sao Paulo State University (UNESP), Campus Guaratinguetá.
Sao Paulo State University (UNESP), Campus Guaratinguetá.
Sao Paulo State University (UNESP), Campus Guaratinguetá.
Sao Paulo State University (UNESP), Campus Guaratinguetá.
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2009 (English)In: Renewable & sustainable energy reviews, ISSN 1364-0321, E-ISSN 1879-0690, Vol. 13, no 9, 2525-2534 p.Article, review/survey (Refereed) Published
Abstract [en]

The purpose of this paper is to describe the benefits of sugar cane ethanol in Brazil, appointing the productivity of this type of fuel based on hectares of plantation, its carbon dioxide cycle and the contribution to reduce the greenhouse effect. In the following step the uses of ethanol for hydrogen production by steam reforming is analyzed and some comparison with natural gas steam reforming is performed. The sugar cane industry in Brazil, in a near future, in the hydrogen era, could be modified according to our purpose, since besides the production of sugar, and ethylic and anhydric alcohol, Brazilian sugar cane industry will also be able to produce biohydrogen. Fuel cells appear like a promising technology for energy generation. Among several technologies in the present, the PEMFC (proton exchange membrane fuel cell) is the most appropriate for vehicles application, because it combines durability, high power density, high efficiency, good response and it works at relatively low temperatures. Besides that it is easy to turn it on and off and it is able to support present vibration in vehicles. A PEMFC's problem is the need of noble catalysts like platinum. Another problem is that CO needs to be in low concentration, requiring a more clean hydrogen to avoid fuel cell deterioration. One part of this paper was developed in Stockholm, where there are some buses within the CUTE (clean urban transport for Europe) project that has been in operation with FC since January 2004. Another part was developed in Guaratingueta, Brazil. Brazil intends to start up a program of FC buses. As conclusion, this paper shows the economical analysis comparing buses moved by fuel cells using hydrogen by different kinds of production. Electrolyze with wind turbine, natural gas steam reforming and ethanol steam reforming.

Place, publisher, year, edition, pages
2009. Vol. 13, no 9, 2525-2534 p.
Keyword [en]
Ethanol, Hydrogen, Fuel cell, Urban buses, Economical analyses, fuel-cell buses, energy, environment, system
National Category
Other Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-18849DOI: 10.1016/j.rser.2009.06.032ISI: 000270637000026Scopus ID: 2-s2.0-68849124174OAI: oai:DiVA.org:kth-18849DiVA: diva2:336896
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QC 20150622

Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Zanzi, Rolando

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