Net energy analysis for annual 200 000 ton cassava ethanol production at Guangxi COFCO.
- Author:
Guojun YUE
;
Zhenjiang SUN
;
Naidong SHEN
- Publication Type:Journal Article
- MeSH:
Biofuels;
China;
Ethanol;
Manihot
- From:
Chinese Journal of Biotechnology
2015;31(2):242-250
- CountryChina
- Language:Chinese
-
Abstract:
Guangxi COFCO innovates its annual 200 000 ton cassava ethanol production in recent years. To evaluate the energy input/output of the production process, we used the domestic life cycle model. The calculation results show that the net energy value was 9.56 MJ/L ethanol. Energy input for ethanol production was 51.3% of the total. 61.5% of energy input for ethanol production was used for steam input in ethanol distillation. Energy produced from by-product was 5.03 MJ/L ethanol. Hence, efficient use of raw materials is an important measure to improve the energy efficiency in Guangxi COFCO and energy compensation from byproducts has key impact on the net energy saving.
