h a l f b a k e r yWe have a low common denominator: 2
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Of all of the various ways to extract oil from algae, the one which is presently considered the most economical is the use of superfluid carbon dioxide, and even this is considered to costly in terms of energy to be economically viable.
What if a continuous, instead of batch process, were used? It
would then be possible to reduce the energy needed to pressurize the algae/water/CO mixture, by using a pressure exchanger. Also, the energy needed to heat it could be reduced by use of a heat exchanger.
How much cheaper would the algae oil become if both of these forms of energy recovery could be used?
Pressure Exchanger
http://en.wikipedia.../Pressure_Exchanger
[goldbb, Feb 17 2009]
Pressure Exchanger Picture & Animation
http://www.energyre...y/how_it_works.php4
[goldbb, Feb 17 2009]
[link]
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Huh... I thought from the title you were suggesting algae as a means of cleaning up oil spills. |
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sp. algae, CO2; also don't you mean supercritical rather than superfluid? |
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spidermother, thanks; and you are correct: I meant supercritical fluid rather than superfluid. |
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