ENERGY RECOVERY FROM FROZEN CONCENTRATED ORANGE JUICE PRODUCTION BY ANAEROBIC DIGESTION

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Detalhes
  • Tipo de apresentação: Pôster
  • Eixo temático: Engenharia de Processos e Tecnologias Emergentes (ET)
  • Palavras chaves: biomass; Green Energy; methane;
  • 1 Departamento de Engenharia de Alimentos / Faculdade de Engenharia de Alimentos / Universidade Estadual de Campinas
  • 2 Universidade Estadual de Campinas

ENERGY RECOVERY FROM FROZEN CONCENTRATED ORANGE JUICE PRODUCTION BY ANAEROBIC DIGESTION

Beatriz Pierre Sforça

Universidade Estadual de Campinas

Resumo

Brazil is the third-largest world producer of food and fiber, only behind China and the USA, being the major producer and the major exporter of orange juice in the international market. Orange peels (OP) derived from the industrial process are the main industrial by-products, corresponding to 50% of the fruit mass, and commonly reused as animal feed in Brazil - without further revalorization to produce bioenergy. Frozen concentrated orange juice (FCOJ) production total energy demand mainly derives from orchards diesel requirements and industrial electricity demand for the essential refrigerated processes. In Brazil, 40% of the global energy consumption for FCOJ production derives from orange trees cultivation and management and 50% from the energy required for refrigeration processes. Anaerobic digestion (AD) may be a potential bioenergy recovery technology for the FCOJ industrial by-products revalorization. A previous assessment of the theoretical electricity potential generation from the AD of OP indicated that 61 MJ per ton of OP could be recovered. This study assesses the potential energy recovery from orange peels AD for the Brazilian’s FCOJ production. The results indicated that the AD of the total orange peels amount derived from FCOJ production could generate bioenergy from biogas enough to supply from 92% to 129% of the total energy consumption in the FCOJ supply chain, from the initial supply chain link, i.e., permanent orange trees fields and their fertilization technologies - organic or conventional agricultural systems, until the industrial refrigeration energy requirements. Moreover, despite the agricultural systems (organic or conventional), a positive energy replacement can be achieved by AD adoption. The study concluded that the FCOJ industry presents an opportunity to achieve energy costs savings and to contribute to a green energy strategy employing a by-products revalorization widespread technology (AD).

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Autor

Luz Selene Buller

Amanda, olá! O maior desafio foi encontrar dados nacionais de literatura científica sobre a indústria cítrica.O grupo de pesquisa pretende sim continuar a avaliação de sustentabilidade da produção de FCOJ no Brasil com a inclusão da digestão anaeróbia das cascas de laranja. 

Editado

Amanda Mellissa B Oliveira

Obrigada pela resposta e boa sorte nos próximos trabalhos! :)