Microalgae to biofuels: life cycle impacts of methane production of anaerobically digested lipid extracted algae.
Bioresour Technol
; 171: 37-43, 2014 Nov.
Article
em En
| MEDLINE
| ID: mdl-25181698
ABSTRACT
This study presents experimental measurements of the biochemical methane production for whole and lipid extracted Nannochloropsis salina. Results show whole microalgae produced 430 cm(3)-CH4 g-volatile solids(-1) (g-VS) (σ=60), 3 times more methane than was produced by the LEA, 140 cm(3)-CH4 g-VS(-1) (σ=30). Results illustrate current anaerobic modeling efforts in microalgae to biofuel assessments are not reflecting the impact of lipid removal. On a systems level, the overestimation of methane production is shown to positively skew the environmental impact of the microalgae to biofuels process. Discussion focuses on a comparison results to those of previous anaerobic digestion studies and quantifies the corresponding change in greenhouse gas emissions of the microalgae to biofuels process based on results from this study.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Metabolismo dos Lipídeos
/
Biocombustíveis
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Estramenópilas
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Microalgas
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Metano
Idioma:
En
Revista:
Bioresour Technol
Ano de publicação:
2014
Tipo de documento:
Article