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1. [The following findings are not especially surprising considering that a commercial process for biodiesel from algae has not yet been perfected, but do highlight how far we seem to be from such a process, and another reason to be wary of algal biofuel use in aircraft.] ..A must read for for every US voter and concerned citizen.. challenges the reader to explore new possibilities and new mindsets that will ultimately be required if the world is truly ready to make a change.. amazon.com US onlyBiodiesel from algae may not be as green as it seems
- 21 July 2010 by Helen Knight
- Magazine issue 2770. Subscribe and save
BUBBLING green tubes filled with algae gobbling up carbon dioxide and producing biodiesel may sound like the perfect way to make clean fuel, but it could generate nearly four times the greenhouse emissions from regular diesel.
How we farm algae is crucial to making algal biodiesel environmentally viable, says Anna Stephenson at the University of Cambridge. She has developed a computer model that calculates the carbon footprint of producing, refining and burning algal biodiesel.
Journal reference: Energy and Fuels, DOI: 10.1021/ef1003123
2. The Race to Make Fuel Out of Algae Poses Risks as Well as Benefits
One day, Big Algae may be competitive with Big Oil, but as researchers search for the ideal oil-producing algae strain to grow in commercial quantities, there are still a host of uncertainties standing in the way.
The first is simply supply. A central question dominating algal biofuel conferences is whether the best oil-producing algae crop will come from strains occurring in nature, or if they will need to be genetically modified to enhance their fuel-producing potential.
If researchers choose to modify them, then the algae basking in open pools under the sun's rays will have genomes dotted with genes from foreign species. Those algae could cause problems, according to a small group of academics and researchers.
Their concerns begin with something as ephemeral as a breeze that could pick up genetically modified microalgae and carry them into nearby fields and streams to displace natural strains, alter the ecosystem, and perhaps get into the human food chain.
Read more: http://www.nytimes.com/cwire/2010/07/22/22climatewire-the-race-to-make-fuel-out-of-algae-poses-ris-80037.html
3.
According to EADS, the aircraft has, as of now, been only certified by European aviation officials to fly with one engine powered by biofuel.
Jean Botti, chief technical officer of EADS, said the use of algae biofuel made the aircraft 10 per cent more efficient and fuel consumption was 1.5 litres per hour lower when compared to conventional JET-A1 fuel.
'Algaes have more energy content than the equivalent diesel fuel,' he explained.
[was the intended word "alkenes" rather than "algaes"?]
Read more:
http://www.theengineer.co.uk/news/news-analysis/eads-aircraft-runs-on-algae-biofuel/1003797.article
4.
The first is simply supply. A central question dominating algal biofuel conferences is whether the best oil-producing algae crop will come from strains occurring in nature, or if they will need to be genetically modified to enhance their fuel-producing potential.
If researchers choose to modify them, then the algae basking in open pools under the sun's rays will have genomes dotted with genes from foreign species. Those algae could cause problems, according to a small group of academics and researchers.
Their concerns begin with something as ephemeral as a breeze that could pick up genetically modified microalgae and carry them into nearby fields and streams to displace natural strains, alter the ecosystem, and perhaps get into the human food chain.
Read more: http://www.nytimes.com/cwire/2010/07/22/22climatewire-the-race-to-make-fuel-out-of-algae-poses-ris-80037.html
3.
EADS aircraft runs on algae biofuel
EADS demonstrated the flight of an aircraft powered by biofuel made from algae at the Farnborough Airshow yesterday.
One of the two Austro Engine AE300 engines of the EADS demonstrator Diamond Aircraft DA42 New Generation was powered by specially grown and refined algae biofuel. The other was fuelled by normal diesel.According to EADS, the aircraft has, as of now, been only certified by European aviation officials to fly with one engine powered by biofuel.
Jean Botti, chief technical officer of EADS, said the use of algae biofuel made the aircraft 10 per cent more efficient and fuel consumption was 1.5 litres per hour lower when compared to conventional JET-A1 fuel.
'Algaes have more energy content than the equivalent diesel fuel,' he explained.
[was the intended word "alkenes" rather than "algaes"?]
Read more:
http://www.theengineer.co.uk/news/news-analysis/eads-aircraft-runs-on-algae-biofuel/1003797.article
4.
German power plant testing CO2-scrubbing algae
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Biofuels are a wide range of fuels which are in some way derived from biomass.
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