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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Potential applications of the hydrogen and the high energy biofuel blend produced by ethanol dehydrogenation on a Cu/ZrO2 catalyst

Texto completo
Autor(es):
Sato, Andre G. [1] ; Biancolli, Ana L. G. [2] ; Paganin, Valdecir A. [2] ; da Silva, Gabriel C. [2] ; Cruz, Glauber [3] ; dos Santos, Antonio M. [3] ; Ticianelli, Edson A. [2]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Fed Vicosa, Dept Chem, BR-36570000 Vicosa, MG - Brazil
[2] IQSC Univ Sao Paulo, Dept Phys Chem, BR-13560970 Sao Paulo - Brazil
[3] Univ Sao Paulo, EESC, Dept Mech Engn, BR-13560970 Sao Paulo - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY; v. 40, n. 42, SI, p. 14716-14722, NOV 9 2015.
Citações Web of Science: 3
Resumo

This study aims at analyzing the potential application of the liquid effluent coming from a catalytic ethanol dehydrogenation reactor as a fuel blend or additive for internal combustion engines, and also of the hydrogen produced, as fuel for a polymer electrolyte fuel cell (PEMFC). The liquid effluent is obtained by the catalytic reaction of ethanol over Cu!ZrO2 at different contact times of the reactant with the catalyst bed. Subsequently, high-performance liquid chromatography analysis and heat of combustion measurements are used to analyze the composition and the heat of combustion of the liquid effluent trapped by cold condensation at 271.65 K. In parallel, the effect of the presence of residual parts of the constituents of the liquid effluent in the H-2 stream on the operational characteristics of a PEMFC having a Pt/C anode and cathode is investigated. Results show that the liquid fuel blend obtained from ethanol dehydrogenation has a heat of combustion higher than that of ethanol, and it is essentially formed by un-reacted ethanol, acetaldehyde and ethyl acetate. Thermodynamic calculations evidence a good agreement with the liquid effluent composition and its respective combustion enthalpy. Polarization curves of a PEMFC supplied with hydrogen containing 1000 ppm of acetaldehyde and ethyl acetate evidence performances comparable to that of the same system when fed with pure hydrogen, while with ethanol significant loss of activity is observed. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. (AU)

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
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 12/04112-5 - Eletrocatálise em célula a combustível direta do etanol com a co-produção de alcoolquímico
Beneficiário:Andre Gustavo Sato
Linha de fomento: Bolsas no Brasil - Pós-Doutorado