Posted by Paul on November 18, 2014 at 09:01:14 from (66.44.132.180):
In Reply to: Re: Who's Ethanol posted by Dean on November 18, 2014 at 05:54:37:
USA actually exports more ethanol to Brazil than what is imported.
We have what we have, they have what they have.
They can grow sugar cane, burn the pulp to power the ethanol plant.
Sugar cane doesn't grow well here in Minnesota, so really not much to do about it eh?
We can grow corn, turn the starch into sugar into ethanol, use the remaining protien for livestock feed, and come out pretty good.
Sugar cane doesn't need to convert starch into sipugar so they save a step.
Corn is producing protien feed for an extra value, as well as much easier to store and handle so is easier to supply a fuel plant 12 months a year.
It comes out pretty close if you look at the whole process.
The newest model is use corn stalks to make some ethanol and the biomass to make heat for the ethanol plant. Use corn to make ethanol as well. Make corn oil from the corn. Make protien feed from the oil.
So you put in corn and corn stalks.
You get out food grade corn oil, feed grade protien for livestock, and fuel ethanol from both the stalks and the corn.The cornstalks residue is burned so very little natural gas is used.
On paper that is more efficient than sugar cane, but got to actually do it before one can claim it. The first plant or two are just starting up to prove it so. If it works, I'm sure it won't take long for all plants to be concered over to work that way.
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