Energy life-cycle analysis of soybean biodiesel : effects of tillage and water management
Fecha
2017-03-17Autor
Arena, Pablo
Piastrellini, Roxana
Civit, Bárbara
Metadatos
Mostrar el registro completo del ítemResumen
The purpose of this paper is to carry out an updated energy Life-Cycle Assessment of soybean biodiesel
produced in the Pampean region of Argentina and to analyze the influence of different tillage systems on
the Energy Return on Investment (EROI). It aims to identify the processes, materials and methodological
aspects that significantly affect biofuel EROI. The procedure considers the main processes and operations
of both the agriculture and industrial stages of biofuel production system, but the main novelty of this
study is linking EROI with farming and conservation practices and not in the chemical processing of the
oil. The results obtained represent the current average energetic performance of soy-based biodiesel
produced in the considered region. The EROI values are very encouraging, demonstrating that this
biodiesel provides a net energy gain. The results also show that conservation agriculture and the
implementation of practices that improve crop yield do not always determine better energetic performance. Sensitivity analysis confirms that EROI values of soybean biodiesel are more responsive to
methodological choices such as the system's boundary definition and the choice of the allocation method
rather than to the physical aspects of the productive system such as tillage and water management
practices.
Colecciones
El ítem tiene asociados los siguientes ficheros de licencia: