Life-cycle assessment of soybean-based biodiesel in Europe: comparing grain, oil and biodiesel import from Brazil

被引：67

作者：

Castanheira, Erica Geraldes ^{[1
]}

Grisoli, Renata ^{[2
]}

Coelho, Suani ^{[2
]}

da Silva, Gil Anderi ^{[3
]}

Freire, Fausto ^{[1
]}

机构：

[1] Univ Coimbra, Dept Mech Engn, ADAI LAETA, P-3030788 Coimbra, Portugal

[2] Univ Sao Paulo, Inst Energy & Environm, IEE USP, BR-05508010 Sao Paulo, Brazil

[3] Univ Sao Paulo, Grp Prevencao Poluicao, GP2, POLI, BR-05508900 Sao Paulo, Brazil

来源：

JOURNAL OF CLEANER PRODUCTION | 2015年 / 102卷

关键词：

Land-use change (LUC); Life-cycle impact assessment (LCIA); ReCiPe; Soybean methyl ester (SME); USETox; GREENHOUSE-GAS EMISSIONS; ECONOMIC-ASSESSMENT; LAND-USE; ENERGY; BALANCE; ALLOCATION; RAPESEED; NITROGEN; SYSTEMS; IMPACT;

D O I：

10.1016/j.jclepro.2015.04.036

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The purpose of this article is to present a life-cycle assessment of soybean methyl ester addressing three alternative pathways: biodiesel totally produced in Brazil and exported to Portugal; biodiesel produced in Portugal using soybean oil and soybean imported from Brazil. Soybean cultivation was assessed for four states in Brazil: Mato Grosso; Goias; Parana and Rio Grande do Sul. A life-cycle inventory and model of biodiesel was implemented, including land-use change, soybean cultivation, oil extraction and refining, transesterification and biodiesel transport. A sensitivity analysis of alternative multi-functionality procedures for dealing with co-products was performed. The lowest environmental impacts were calculated for mass allocation and the highest for price or energy allocation. Biodiesel produced in Portugal with imported soybean grain had the lowest impacts for all categories and soybean cultivation locations for mass allocation. For price or energy allocation, the pathway with the lowest environmental impacts was determined by the cultivation location. Land-use change had a high influence on the greenhouse gas intensity of biodiesel, while soybean cultivation and transport contributed most to the remaining impact categories. Soybean methyl ester (SME) used in Portugal has the lowest impacts when produced with oil or grain imported from Brazil, instead of importing directly SME. The environmental impacts of biodiesel can be reduced by avoiding land-use change, improving soybean yield and optimizing soybean transportation routes in Brazil. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：188 / 201

页数：14

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