[Hidden-tech] Biodiesel

[Matthew Crocker]

I followed one of these down I-91 the other day  http:// 
www.greasecar.com/  Seems pretty interesting, no idea on how well it  
works.


 From my understanding, turning cooking oil into diesel requires some  
pretty toxic chemicals.  It isn't really suited for home production.

On May 13, 2006, at 4:34 PM, Andy Klapper wrote:

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>
> True, except one has to factor in any fossil fuels used to power  
> the plant
> that manufactured the bio-diesel, the fuel used by farm equipment  
> to grow
> the source crop (and the fertilizer), any non-bio-diesel fuel used  
> to move
> the crop from the farm to the factory, and from the factory to the  
> pump.
> Bio-diesel made from used cooking grease I guess you could exclude  
> the farm
> side of things, but you still have the factory fossil fuel  
> consumption.
>
> For Ethanol this cost is surprisingly high.
>
> I'm sure in the end it's better than burning straight fossil fuels,  
> and you
> could reduce the amount by running the farm equipment on bio- 
> diesel, and get
> the power for the factory from a Nuclear power plant.  But zero it  
> is not.
>
>
>
> Andy.
>
>         There is a very important point that is yet to be brought up.
> Biodiesel
> is zero-carbon cycle -- any CO2 it emits, was the CO2 the plants has
> absorbed from the air first; unlike fossil-diesel, which releases  
> carbon
> which had been sequestered by the plants hundreds of millions years  
> ago.
> So, *effectively*, the carbon emissions of biodiesel are zero.
>
> --
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Matthew S. Crocker
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