Journal ArticleDOI
An economic, sustainability, and energetic model of biodiesel production from microalgae
Florian Delrue,P.-A. Setier,C. Sahut,C. Sahut,Laurent Cournac,Laurent Cournac,A. Roubaud,Gilles Peltier,Gilles Peltier,A.-K. Froment +9 more
TLDR
A new process evaluation methodology of microalgae biodiesel shows good results in comparison to a reference pathway and the use of low-carbon energy sources is required to achieve significant reductions of the biodiesel GHG emission rate compared to petroleum diesel.About:
This article is published in Bioresource Technology.The article was published on 2012-05-01. It has received 301 citations till now. The article focuses on the topics: Biodiesel production & Biodiesel.read more
Citations
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Journal ArticleDOI
Biorefinery of microalgae for food and fuel
TL;DR: Of the techniques described, Pulsed Electric Field (PEF) seems to be the most developed technique compared to other cell disruption applications and ionic liquids seems most promising as they are able to both separate hydrophobic and hydrophilic compounds.
Journal ArticleDOI
Commercial astaxanthin production derived by green alga Haematococcus pluvialis: A microalgae process model and a techno-economic assessment all through production line
TL;DR: Astaxanthin is a member of the xanthophyll family of carotenoids and constitutes the highest value product derived by microalgae as mentioned in this paper, and is extracted from the freshwater green microalgal strain Haematococcus pluvialis.
Journal ArticleDOI
Biorefinery as a promising approach to promote microalgae industry: An innovative framework
Liandong Zhu,Liandong Zhu +1 more
Abstract: In response to energy crisis, global warming and climate changes, microalgae have received a great deal of interest as a biofuel feedstock. However, the development of microalgal biofuels witnesses an obvious and serious dilemma. The reported literature shows that “fuel only” option is not economically viable due to the overwhelming investments in capital and operation. Hence, it is questionable whether it is too luxurious to produce microalgae only for biofuel application. In addition, there are some voiced concerns related to the impacts of microalgal biofuel production on the conventional applications, such as cosmetics, pharmaceuticals and nutritious feed. It is therefore questionable whether the microalgal biofuel production will affect the original functions. From a sustainability point of view, the author explores the current challenges in microalgal applications and proposes an innovative framework for microalgal biorefinery, which can realize the production of multiple products in the form of high values and biofuels such as biodiesel, bioethanol and biogas. With the aim at maximizing the value derived from different microalgal components, the innovative microalgal biorefinery concept includes four pathways: high-value products–biodiesel–bioethanol–biogas; high-value products–bioethanol–biogas; high-value products–biodiesel–biogas; and high-value products–biogas. Special attention has been paid to the production of high-value products through system integration and engineering, which is expected to promote the economics of microalgal biofuels. Net energy ratio assessment and cost-effectiveness assessment have been highlighted to testify the feasibility of microalgal biorefinery options, and some crucial actions have been suggested to help establish the process.
Journal ArticleDOI
Macroalgae-Derived Biofuel: A Review of Methods of Energy Extraction from Seaweed Biomass
TL;DR: The methods by which useful energy may be extracted from macroalgae biomass are reviewed including: direct combustion, pyrolysis, gasification, trans-esterification to biodiesel, hydrothermal liquefaction, fermentation to bioethanol, fermenting to biobutanol and anaerobic digestion.
Journal ArticleDOI
The potential of microalgae in biodiesel production
Jiaxin Chen,Jiaxin Chen,Ji Li,Wenyi Dong,Xiaolei Zhang,Rajeshwar Dayal Tyagi,Patrick Drogui,Rao Y. Surampalli +7 more
TL;DR: In this article, the authors compared the properties of microalgae oil with traditional biodiesel production oils (vegetable oils), and reviewed the net energy ratio (energy output to energy input), GHG emissions, and economic analysis of the process of biodiesel extraction from micro algae; as well as discussed the factors which would influent the energy, environment, and cost of the extraction process.
References
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Journal ArticleDOI
Environmental, economic, and energetic costs and benefits of biodiesel and ethanol biofuels
TL;DR: Transportation biofuels such as synfuel hydrocarbons or cellulosic ethanol, if produced from low-input biomass grown on agriculturally marginal land or from waste biomass, could provide much greater supplies and environmental benefits than food-basedBiofuels.
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Making best use of model evaluations to compute sensitivity indices
TL;DR: In this paper, the same set of model evaluations can be used to compute double estimates of the total effect of two factors taken together, for all such k 2 couples, where k is the dimensionality of the model.
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Life-cycle assessment of biodiesel production from microalgae.
TL;DR: The outcome confirms the potential of microalgae as an energy source but highlights the imperative necessity of decreasing the energy and fertilizer consumption and control of nitrogen stress during the culture and optimization of wet extraction seem to be valuable options.
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Anaerobic digestion of microalgae as a necessary step to make microalgal biodiesel sustainable.
TL;DR: The ability of these CO2 consuming microalgae to purify biogas and concentrate methane is discussed, and anaerobic digestion of the whole biomass appears to be the optimal strategy on an energy balance basis for the energetic recovery of cell biomass.
Journal ArticleDOI
Wastewater treatment high rate algal ponds for biofuel production.
TL;DR: The critical parameters that limit algal cultivation, production and harvest are reviewed and practical options that may enhance the net harvestable algal production from wastewater treatment HRAPs including CO(2) addition, species control, control of grazers and parasites and bioflocculation are discussed.