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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.)

A short-cut model for predicting biomethane availability after biogas upgrading

Texto completo
Joppert, C. L. [1] ; Perecin, D. [1] ; Santos, M. M. [1] ; Coelho, S. T. [1] ; Camacho, J. L. P. [2]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Inst Energia & Ambiente, Bioenergy Res Grp GBio, Sao Paulo - Brazil
[2] Univ Sao Paulo, Escola Politecn, Chem Engn Dept, Lab Thermal & Mech Separat LSTM, Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF CLEANER PRODUCTION; v. 200, p. 148-160, NOV 1 2018.
Citações Web of Science: 4

Biomethane increasingly grows in importance in the bioenergy sector, as it is a renewable energy source that promotes waste recovery and GHG (greenhouse gases) reduction. In Brazil, the legal framework for biogas and biomethane is being developed, especially in the State of Sao Paulo. However, many of the final uses to biomethane require an upgrading and cleaning process, to remove contaminants such as H2S and CO2. Facing the great number of technological options to promote biogas upgrading and cleaning so far, policymakers and energy planners might lack the tools to accurately and readily estimate biomethane potentials to comply with a given biomethane quality standard. Our main objective thus is to propose a short-cut, mass balance-based model to predict biomethane availability after promoting a biogas cleaning and upgrading process, regardless of the source of organic feedstock. The model development results in the ratio of biogas to biomethane production and other relevant parameters regarding biomethane use, such as its LHV. The correlation with data from the literature shows that the model has a satisfactory prediction, even when using upgrading technologies that have high methane losses. The model was applied to a case study of upgrading biogas from vinasse from ethanol production in the state of Sao Paulo; it aided in choosing the upgrading technology for biogas focusing on biomethane injection in the natural gas pipeline and in replacing diesel oil in trucks and heavy-duty machinery in the ethanol plant. Using the proposed model, it was estimated that 1.975x10(9) Nm(3)/y of biomethane could be produced, supplying 16.6% of the NG consumption in the State of Sao Paulo and making it possible to displace the entire diesel oil consumption in ethanol mills. The use of biomethane in the ethanol plants of Sao Paulo would avoid 3.965x10(6) t(co2eq) of GHG emissions, which represents 5.48% of the GHG emissions of the state in 2016. (C) 2018 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 14/50279-4 - Brasil Research Centre for Gas Innovation
Beneficiário:Julio Romano Meneghini
Linha de fomento: Auxílio à Pesquisa - Programa Centros de Pesquisa em Engenharia