期刊
ENERGY
卷 115, 期 -, 页码 888-895出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2016.09.061
关键词
Biofuels; Cumulative energy demand; Net energy balance; Fossil energy ratio; Integrated biorefineries; System expansion
资金
- Brazilian National Council of Technological and Scientific Development (CNPq) [CNPq 574712/2008-9, 551134/2010-0]
- Bahia State Research Support Foundation (FAPESB)
This study analyzed the algal biodiesel production system via dry-route, based on Chlorella vulgaris cultivated in raceways, by comparing the Net Energy Balance (NEB) and the Fossil Energy Ratio (FER) of five scenarios: CO (single system of biomass production); C1 (CO + pyrolysis of the microalgae press cake); C2 (CO + anaerobic co-digestion of the microalgae press cake); C3 and C4 (same conditions of Cl and C2, but integrating both scenarios into an autonomous ethanol distillery). Each scenario was analyzed under de perspective of energy allocation (a) and system expansion with avoided product (b). The results showed that with the energy allocation, only C3a and C4a improved the values of baseline scenario (COa) for NEB, in 120% and 72% respectively. When the system expansion is considered, none of the scenarios was better than the respective baseline scenario (Cob), in relation to the NEB. Considering the FER, C3a increased in 3.4% the values of COa, while C3b and C4b increased the values of COb in 54.1% and 28.8%, respectively. In general, system expansion showed the best scenarios: for the NEB COb showed the highest average values while C3b showed the highest average values for the FER. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据