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| 9. |  | BOLL, M. G.; LEUNG, P. Economic feasibility of microalgae production for biodiesel development in NE Brazil. In: CTAHR STUDENT RESEARCH SYMPOSIUM, 21., 2009, Honolulu, Hawaii, US. [Proceedings...]. UH Manoa, Hawaii, US: College of Tropical Agriculture and Human Resources - CTAHR, University of Hawaii at Manoa, 2009.| Biblioteca(s): Epagri-Sede. |
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| Registros recuperados : 114 | |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
09/04/2012 |
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Data da última atualização: |
09/04/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Circulação/Nível: |
-- - -- |
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Autoria: |
BOLL, M. G.; LEUNG, P. |
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Afiliação: |
Epagri |
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Título: |
Economic feasibility of microalgae production for biodiesel development in NE Brazil. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: CTAHR STUDENT RESEARCH SYMPOSIUM, 21., 2009, Honolulu, Hawaii, US. [Proceedings...]. UH Manoa, Hawaii, US: College of Tropical Agriculture and Human Resources - CTAHR, University of Hawaii at Manoa, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study is to obtain a realistic investment and cost estimation for a projected 400 ha open pond freshwater microalgae production farm. Cost and return calculations followed the methodology proposed by the American Agricultural Economics Association (AAEA). Further sensitivity analysis was performed for CO2 sequestration costs, harvesting costs, annual farm operating time, fertilizer cost, energy cost, clean development credit?s price, biomass revenue price, microalgae?s lipid content and microalgae?s oil extraction efficiency. Finally, stochastic analysis was performed using Monte Carlo simulation under three vegetable oil scenarios, R$1.86 (baseline), R$3.74 and R$7.44 L-1. Projected microalgae?s oil productivity was 8,500 L ha-1 for a 240 day culture period. Estimated microalgae biomass produced in the same period was 46.5 t ha-1 and was assumed to be sold as fertilizer. Clean development mechanism (CDM) credits refer to the CO2 weight used in the microalgae growth, about 101 t ha-1 240 day-1. Vegetable oil total production and operating cost costs were projected to be R$ 7.84 L-1 and R$2.67 L-1, respectively. Our sensitivity analysis indicated microalgae?s oil content and byproduct selling price as the most impacting parameters to reduce oil production costs. Our stochastic analysis, on the other hand, showed that microalgae production would have an economic acceptable risk only when vegetable oil price was R$7.44 L-1, a price four times higher than current price. We conclude that significant cost reductions need to occur to make microalgae a competitive alternative for biodiesel production in Brazil. Nevertheless, the environmental aspects of microalgae use for biofuel production should be further investigated and compared with other biodiesel feedstock alternatives. MenosThe objective of this study is to obtain a realistic investment and cost estimation for a projected 400 ha open pond freshwater microalgae production farm. Cost and return calculations followed the methodology proposed by the American Agricultural Economics Association (AAEA). Further sensitivity analysis was performed for CO2 sequestration costs, harvesting costs, annual farm operating time, fertilizer cost, energy cost, clean development credit?s price, biomass revenue price, microalgae?s lipid content and microalgae?s oil extraction efficiency. Finally, stochastic analysis was performed using Monte Carlo simulation under three vegetable oil scenarios, R$1.86 (baseline), R$3.74 and R$7.44 L-1. Projected microalgae?s oil productivity was 8,500 L ha-1 for a 240 day culture period. Estimated microalgae biomass produced in the same period was 46.5 t ha-1 and was assumed to be sold as fertilizer. Clean development mechanism (CDM) credits refer to the CO2 weight used in the microalgae growth, about 101 t ha-1 240 day-1. Vegetable oil total production and operating cost costs were projected to be R$ 7.84 L-1 and R$2.67 L-1, respectively. Our sensitivity analysis indicated microalgae?s oil content and byproduct selling price as the most impacting parameters to reduce oil production costs. Our stochastic analysis, on the other hand, showed that microalgae production would have an economic acceptable risk only when vegetable oil price was R$7.44 L-1, a price four times higher than c... Mostrar Tudo |
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Palavras-Chave: |
Biocombustível; Microalgas; Região Nordeste; Viabilidade econômica. |
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Categoria do assunto: |
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Epagri-Sede (Epagri-Sede) |
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