Bioethanol Potentials From Marine
Residual Biomass: An Emergy Evaluation
Author(s)
F. Coppola, E. Simoncini & R. M. Pulselli
Abstract
Different types and sources of biofuels were recently studied as potential energy
issues. The aim of this work is to evaluate the use of new kinds of renewable and
alternative feedstocks for producing bioethanol. In particular, the potential
production of bioethanol from cellulosic material was analyzed considering two
species of macroalgae (C. linum, G. longissima) as residual biomass from an
eutrophic lagoon system. Besides chemical analyses and the evaluation of yields
in producing bioethanol, accounting methods are necessary to understand the
level of sustainability of the whole production process exploiting natural
resources. An assessment was carried out based on the emergy approach, in order
to evaluate the environmental performance of processes in the case study.
Results showed that macroalgae are a good candidate for bioethanol production
even if bioethanol conversion from macroalgae biomass was found to be not
very efficient per se. Nevertheless, the feedstock may be involved in processes of
biorefinery in systems with a high carbohydrate content, in which heat necessary
to treat the feedstock and maintain the micro organisms performing the
transformation are provided by external sources already existing (e.g. a
combined heat and power plant).
Keywords: biofuels, macroalgae, biorefinery, emergy analysis.
Keywords
biofuels, macroalgae, biorefinery, emergy analysis
Related Book
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