Life cycle assessment of biomethane from offshore‐cultivated seaweed
Biogas
Algae fuel
Environmentally Friendly
DOI:
10.1002/bbb.1330
Publication Date:
2012-03-15T09:44:12Z
AUTHORS (6)
ABSTRACT
Abstract Algae are a promising source of industrial biomass for the future. In order to assess if aquacultured seaweed (macroalgae) could be considered an environmentally friendly bioenergy, life cycle assessments were performed European countries, comparing methane as biofuel from anaerobic digestion (A) whole seaweeds, (B) alginate extraction residues, and (C) natural gas fossil fuel reference. These results clarify that sources electricity energy used heat digesters have important impact. Recycling materials use greenhouses at nursery stage also allow environmental improvements system (A). Ecodesign can make algal biomethane competitive in several categories compared gas: decrease 21.9% 54.2% greenhouse (GHG) emissions 58.6% 68.7% depletion systems (B), respectively, ozone depletion, last but not least, improvement marine eutrophication index For benefits more arguable dependent on allocation. To conclude, become with terrestrial feedstock production near © 2012 Society Chemical Industry John Wiley & Sons, Ltd
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