View Single Post
Old 03-28-08, 01:34 PM   #5
joea
Silent Hunter
 
joea's Avatar
 
Join Date: Jul 2002
Location: At periscope depth in Lake Geneva
Posts: 3,512
Downloads: 25
Uploads: 0
Default

Quote:
Originally Posted by Mikhayl
The flaws of the "first generation" biofuels is well known, actually there's no need for any maths since there are already facts : in Brasil for example the use of crops for fuel had the effect to raise the price of 1st need agricultural products, so much that many "poor" guys working in these farms couldn't afford anymore what they were working to produce.
The "new" biofuels should use only non-edible products from various sources, like some "fast growing" trees that have no other use, also some algae and other vegetal sources.
Not only that, but if you use pyrolyis for the conversion, producing biochar, you not only will get a "green petroleum" out of it but biochar...basically a charcoal which can be used to make soils more fertile and means the process is carbon negative and removes carbon from the air. This is what they think the Amazon Indians did, using slash and char rather than slash and burn to make fertile soils that still exist and may have supported large populations in the past.

Links?

http://www.biochar.org/joomla/

http://en.wikipedia.org/wiki/Pyrolysis

http://en.wikipedia.org/wiki/Biochar

http://www.bbc.co.uk/science/horizon...eldorado.shtml

This links is from one of the leading researchers in the field.

http://www.css.cornell.edu/faculty/l...aPretahome.htm

A Canadian company involved in the production of this fuel.

http://www.dynamotive.com/
joea is offline   Reply With Quote