New, efficient and viable system for ethanol fuel utilization on combined electric/internal combustion engine vehicles

Autor(es)

Sato, Andre G. ^[1] ; Silva, Gabriel C. D. ^[2] ; Paganin, Valdecir A. ^[2] ; Biancolli, Ana L. G. ^[2] ; Ticianelli, Edson A. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Fed Vicosa, Dept Chem, BR-36570000 Vicosa, MG - Brazil

^[2] Univ Sao Paulo, Dept Phys Chem, IQSC, BR-13560970 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Power Sources; v. 294, p. 569-573, OCT 30 2015.
• Citações Web of Science: 3

Resumo

Although ethanol can be directly employed as fuel on polymer-electrolyte fuel cells (PEMFC), its low oxidation kinetics in the anode and the crossover to the cathode lead to a substantial reduction of energy conversion efficiency. However, when fuel cell driven vehicles are considered, the system may include an on board steam reformer for converting ethanol into hydrogen, but the hydrogen produced contains carbon monoxide, which limits applications in PEMFCs. Here, we present a system consisting of an ethanol dehydrogenation catalytic reactor for producing hydrogen, which is supplied to a PEMFC to generate electricity for electric motors. A liquid by-product effluent from the reactor can be used as fuel for an integrated internal combustion engine, or catalytically recycled to extract more hydrogen molecules. Power densities comparable to those of a PEMFC operating with pure hydrogen are attained by using the hydrogen rich stream produced by the ethanol dehydrogenation reactor. (C) 2015 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 12/04112-5 - Eletrocatálise em célula a combustível direta do etanol com a co-produção de alcoolquímico
• Beneficiário: Andre Gustavo Sato
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 11/50727-9 - Desenvolvimento de sistemas para produção de hidrogênio e para geração e utilização de energia eletro-química
• Beneficiário: Ernesto Rafael Gonzalez
• Modalidade de apoio: Auxílio à Pesquisa - Temático