[Gasification] Converting biomass for ethanol

Thomas Reed tombreed at comcast.net
Fri Jul 28 06:20:06 CDT 2006


Dear Lewis and All:

Cracking the cellulose nut still eludes us commercially. 

Paper is a relatively pure form of cellulose on which a great deal of 
energy has been spent to get rid of the lignin and hemicellulose.  Have 
you heard any of the "cellulosic" proponents claiming we can convert our 
waste paper?  I wish them luck, but believe there are many more 
practical paths for my taxpayer money.

Beware the energy "red herrings"!

TOM REED                     BEF



MMBTUPR at aol.com wrote:
>                to          Bioenergy List               from   Lewis L 
> Smith
>
> It has been quite a while since I was involved with this subject.
>
> There must be at least a dozen ways to do this which work technically.
>
> It is my understanding that none were economically feasible when crude 
> was < $35 per barrel cif.
>
> At the time, enzymes were the most promising and NREL was a leading 
> researcher in this area.
>
> The critical problem is to separate cellulose, hemicellusose and 
> lignin. Once this has been done, you are "home free", as there are 
> lots of long-proven commercial processes for converting each of these 
> three into valuable products.
>
> Good luck. Cordially. End of message.
>
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