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Process simulation and economic evaluation of biodiesel production from several feedstocks in Brazil

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Abstract

The environmental concern about the use of fossil fuels leads to the search for renewable alternatives. In this context, despite the recent growth of other technologies, biodiesel has remained so far as the main alternative to replace conventional diesel. Its production is quite attractive in social and environmental aspects, and it can be produced from several feedstocks. However, these feedstocks can be more or less interesting depending on region, climate, season, etc., and it is an energy policy problem, especially in continental countries like Brazil. Although several authors have used process simulation to support economic analyzes of biodiesel production from different feedstocks, the different hypothesis assumed and the different contexts where these works were inserted make not possible a fair comparison of them. Therefore, the objective of this work was to technically and economically evaluate biodiesel production in Brazil from fifteen different feedstocks. They were compared regarding the process demands required to obtain biodiesel meeting the regulatory agency standards, as well as regarding some economic results such as the investment needed on a new plant, profitability and break-even prices. The work reaffirms that the biodiesel price is highly influenced by the feedstock prices, but also demonstrates some benefits and limitations of each feedstock. With the considerations made in this work, chicken fat (biodiesel break-even price of US$ 1.375/kg), corn oil (US$ 1.446/kg) and palm oil (US$ 1.670/kg) appeared as promising alternatives for the Brazilian market.

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Correspondence to André F. Young.

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Pires, V.D., Cavalcante, R.M. & Young, A.F. Process simulation and economic evaluation of biodiesel production from several feedstocks in Brazil. Braz. J. Chem. Eng. (2023). https://doi.org/10.1007/s43153-023-00412-0

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  • DOI: https://doi.org/10.1007/s43153-023-00412-0

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