Please use this identifier to cite or link to this item: https://repositorio-aberto.up.pt/handle/10216/104493
Author(s): H. Pereira
H. M. Amaro
N. G. Katkam
L. Barreira
A. Catarina Guedes
J. Varela
F. Xavier Malcata
Title: Microalgal biodiesel
Issue Date: 2013
Abstract: In the latest decades, dramatic fluctuations of oil prices have occurred-owing to an increasing demand and a more and more limited supply; this situation has urged the quest for renewable energy sources. Microalgal-based biodiesel (MBB) appears as one of the most appealing and feasible substitute for fossil fuels among several cell-based sources of biodiesel. Microalgae are photosynthetic, unicellular organisms that play a vital role in CO2 sequestration in our planet-but they do not competes with food production for arable land and water supply; microalgae may indeed be grown in marginal lands, and use wastewaters or seawater as growth medium. Furthermore, they can synthesize several high added-value products, viz. bioactive compounds, polyunsaturated fatty acids and pigments, which can be extracted prior to lipid extraction itself. After processing, residual algal biomass can still be used as feedstock for other fuels, or else as animal feed. All in all, microalgae offer certainly more advantages for biofuel production than land oil crops normally used for the same purpose. Despite the numerous advantages of MBB, its economic feasibility has been hampered by excessively high (and, thus, still uncompetitive) operation costs. Attempts to effectively address this issue have encompassed either use of lipid-hyperproducing strains, or highly productive, low-cost photobioreactors-coupled with more efficient methods of harvesting and downstream processing. Additionally, full exploitation of all components in microalgal biomass-following a biorefinery strategy, should be considered to alleviate the economic constraint. This chapter addresses these possibilities in a brief, yet integrated manner.
Subject: Ciências Tecnológicas, Ciências da engenharia e tecnologias
Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
URI: http://hdl.handle.net/10216/104493
Source: Air Pollution Prevention and Control
Document Type: Capítulo ou Parte de Livro
Rights: restrictedAccess
Appears in Collections:FEUP - Capítulo ou Parte de Livro

Files in This Item:
File Description SizeFormat 
63889.pdf
  Restricted Access
Livro ou Capítulo de Livro955.8 kBAdobe PDF    Request a copy from the Author(s)


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.