TOWARDS A COMMON APPROACH FOR COMPARING BIOREFINERY SYSTEMS TO CONVENTIONAL SYSTEMS – FINDINGS OF IEA BIOENERGY TASK 42 'BIOREFINERIES'

摘要

The increase usage of biofuels in transportation sector is the driving factor for the development of advanced processes to produce biofuels in biorefineries efficiently, whereas for the co-produced bio-based materials additional economic and environmental benefits might be gained . The main question is, what are the advantages of a biorefinery as a “multi-product” system compared to conventional bioenergy systems e.g. single product systems. The advantages might be in terms of environmental, economic, technical or social benefits. The purpose of the work is to describe and discuss possible economic, environmental or other benefits of biorefinery systems compared to conventional systems or single product systems. In IEA Bioenergy Task 42 “Biorefineries - Co-production of Fuels, Chemicals, Power and Materials from Biomass” a methodology is under development to establish a framework for such a comparison, which is already applied to several biorefinery examples.