Hi Todd and all,
Do you mean acre-foot of seawater? Do you have any idea how much phosphorus would be required for growing this kind of mass even if the algae can fix atmospheric nitrogen? Let me diplomatic and say this seems to be an overestimation.
Tom
From: Keith Addison [mailto:[EMAIL PROTECTED]
To: biofuel@sustainablelists.org
Sent: Tue, 01 Aug 2006 02:46:51 -0300
Subject: Re: [Biofuel] Future car: What will you be driving?
>And/or 100,000 gallons of oil per acre when growing algae.
>
>Todd Swearingen
>\
Um, where exactly are these acres of algae each producing 100,000
gallons of oil? Anywhere here on Planet Earth in August 2006?
:-)
Keith
>Kirk McLoren wrote:
>
> > 1000 gallons methanol per acre with hemp if using pyrolytic distillation.
> >
> > Kirk
> >
> > */Jason& Katie <[EMAIL PROTECTED]>/* wrote:
> >
> >
> > WHAT!?!?!?!?!?
> >
> > > Could we replace all our oil with bio-fuels? Well... maybe. But
> > it would
> > > be an extraordinary effort. A fifty-fifty mix of bio-diesel and
> > ethanol
> > > would require putting three times the productive farm land in
> > >Iowa toward
> > > nothing but the production of fuel just to match what we
> > currently import.
> > > Make it five Iowas to solve the whole problem. Trouble is, that
> > much farm
> > > land is not readily available. There's also >the little nit of
> > figuring
> > > out what we eat while every scrap of land is busy working for
> > our gas
> > > tanks.
> > > Naturally, if we combine bio-fuels with the two hoped for goals
> > in regular
> > > cars -- more efficient engines and lighter weight vehicles -- we
> > can
> > > shrink the requisite greenspace. Brazil, which generates
> > >ethanol from
> > > sugar cane, has been systematically raising the amount of
> > ethanol in their
> > > fuel supply, and Brazilian manufacturers have been adding small
> > flex-fuel
> > > vehicles that can run on anything from E0 to >E100. Zap is
> > bringing at
> > > least one of these vehicles to US consumers next year.
> >
> > im all for the efficiency argument, but COME ON PEOPLE! doesnt anyone
> > believe in using something OTHER than corn and soy? they are NOT
> > the best
> > feedstocks anyone could use for fuel! move to a better supply, not
> > a higher
> > yield. this is ridiculous! if the supply was a high density stock
> > the land
> > requirement would be porportionally lower.
> >
> > for diesel replacement assume we used castor in the USA:
> > -oil yield would be roughly 151 gallons per acre compared to 48
> > gallons of soy oil.
> > -THEREFORE one acre of castor would eliminate the need for more
> > than 3 acres of soy.
> > which means those other 2 acres of new empty field could be
> > used for food or- OH NO! TREES!
> >
> > for gasoline replacement assume we use sugarbeets (not very good,
> > but more
> > climate friendly) in the USA:
> > -ethanol yield would be 412 gallons per acre compared to 214 gallons
> > of corn ethanol
> > -THEREFORE one acre of sugarbeets would eliminate the need for
> > 1.9 acres of corn.
> > you see where im going with this?
> >
> > by selective breeding of some of the more tropical varieties of
> > high density
> > stock, we can slowly push the growing regions further north,
> > increasing the
> > supply density, and lowering the acreage needed to supply the same
> > amount.
> > WE DONT NEED CORN OR SOY FOR FUEL! i might be raving like an
> > idiot, but
> > noone can seem to understand that corn and soy are not the only
> > crops in the
> > world.
> >
> > Jason
> > ICQ#: 154998177
> > MSN: [EMAIL PROTECTED]
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