Ethanol vs Biodiesel
#1
Ethanol vs Biodiesel
I've heard reports that both of these fuels supply less energy than they take to produce. This is clearly crap as Brasil is moving twards ethanol and away from importing oil. BD is anoher way to run our cars using our crops. Which is better?
#2
Re: Ethanol vs Biodiesel
Neither are perfect, especially because in order to make B100 you need 10% ethanol! So they are virtually inseparable. Using ethanol in cars made for gasoline is more of a problem than using biodiesel in a diesel car, so my vote goes to BD. There is another fuel that can be made from the same feedstock as what makes ethanol, but it's properties are much closer to gasoline and can be used without any modification or loss of performance, I think that has potential if the industrial farming lobby doesn't strangle the available alternatives.
#3
Re: Ethanol vs Biodiesel
Wayne/xcel found a thread where some guy pointed out that if you use the formula that declares biofuels to be a net loss, that same formula said that even oil was a net loss as well as coal. We obviously pump oil like mad and 54% of our electricity comes from coal. The formula is flawed.
#4
Re: Ethanol vs Biodiesel
Hi AZCivic:
___You are definitely a quick study!
The Great Ethanol Energy Balance Debate …
___Good Luck
___Wayne R. Gerdes
___Waynegerdes@earthlink.net
___You are definitely a quick study!
The Great Ethanol Energy Balance Debate …
Using Pimentel’s and Patzek’s method, Dale calculated the net energy value of other fuels. By his calculations, ethanol, with an energy balance of -29%, is better than converting crude oil to gasoline at -39% and coal to electricity at -235%.
Are we going to stop burning coal for electricity or refining crude for gas because they have negative energy balances? Of course not. But that is the direction the net energy argument takes us.
Are we going to stop burning coal for electricity or refining crude for gas because they have negative energy balances? Of course not. But that is the direction the net energy argument takes us.
___Wayne R. Gerdes
___Waynegerdes@earthlink.net
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RichC
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05-17-2005 04:49 PM