BIOGAS FROM ANAEROBIC DIGESTION OF HEMICELLULOSE HYDROLYSATE: AN ECONOMIC PERSPECTIV

BIOGAS FROM ANAEROBIC DIGESTION OF HEMICELLULOSE HYDROLYSATE: AN ECONOMIC PERSPECTIV

LONGATI, A. A; GIORDANO, R. C; FURLAN, F. F; CRUZ, A. J. G

Pôster:

The impact of anaerobic digestion of hemicellulose hydrolysateproduced after hydrothermal pretreatment of sugarcane bagasse was investigatedusing energy and economic metrics. For this, an anaerobic digestion unit wasmodelled and coupled to an existing integrated first- and second-generation ethanolbiorefinery. The investment required was estimated and economic analysis wasperformed. Results showed that it was possible to produce 13.6 Nm3biogas per tonneof sugarcane. Ethanol and electricity production were increased in 1.5 L and 5.7 MWhper tonne of sugarcane, respectively. The economic analysis exhibits a positive NetPresent Value (14.3·106 USD), and Internal Rate of Return (25.1%) higher than theminimum acceptable rate of return (11%). Thus, biogas production from anaerobicdigestion of hemicellulose hydrolysate can be considered an economically promisingtechnology to improve the productivity of sugarcane biorefineries. 

The impact of anaerobic digestion of hemicellulose hydrolysateproduced after hydrothermal pretreatment of sugarcane bagasse was investigatedusing energy and economic metrics. For this, an anaerobic digestion unit wasmodelled and coupled to an existing integrated first- and second-generation ethanolbiorefinery. The investment required was estimated and economic analysis wasperformed. Results showed that it was possible to produce 13.6 Nm3biogas per tonneof sugarcane. Ethanol and electricity production were increased in 1.5 L and 5.7 MWhper tonne of sugarcane, respectively. The economic analysis exhibits a positive NetPresent Value (14.3·106 USD), and Internal Rate of Return (25.1%) higher than theminimum acceptable rate of return (11%). Thus, biogas production from anaerobicdigestion of hemicellulose hydrolysate can be considered an economically promisingtechnology to improve the productivity of sugarcane biorefineries. 

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DOI: 10.5151/cobeq2018-PT.0344

Referências bibliográficas

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Como citar:

LONGATI, A. A; GIORDANO, R. C; FURLAN, F. F; CRUZ, A. J. G; "BIOGAS FROM ANAEROBIC DIGESTION OF HEMICELLULOSE HYDROLYSATE: AN ECONOMIC PERSPECTIV", p-1293-1296. In: . São Paulo: Blucher, 2018.
ISSN 23591757, DOI 10.5151/cobeq2018-PT.0344