Journal
BIOMASS & BIOENERGY
Volume 35, Issue 5, Pages 1747-1755Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2011.01.016
Keywords
Industrial symbiosis; Biofuels; Biodiesel; Ethanol; Biogas; Synergies
Funding
- FORMAS-The Swedish Research Council
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In the production of biofuels for transport many critics have argued about the poor energy efficiency and environmental performance of the production industries. Optimism is thus set on the production of second generation biofuels, while first generation biofuels continue to dominate worldwide. Therefore it is interesting to consider how the environmental performance of first generation biofuel industries can be improved. The field of industrial symbiosis offers many possibilities for potential improvements in the biofuel industry and theories from this research field are used in this paper to highlight how environmental performance improvements can be accomplished. This comes in the form of by-product synergies and utility synergies which can improve material and energy handling. Furthermore, the processes and products can gain increased environmental performance improvements by the adaption of a renewable energy system which will act as a utility provider for many industries in a symbiotic network. By-products may thereafter be upcycled through biogas production processes to generate both energy and a biofertilizer. A case study of an actual biofuel industrial symbiosis is also reviewed to provide support for these theories. (C) 2011 Elsevier Ltd. All rights reserved.
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