Re: Biomass to energy

On Aug 9, 5:01 pm, B Richardson <br...@xxxxxxxxxxxx> wrote:
On 2008-08-09, Uncle Ben <b...@xxxxxxxxxxx> wrote:





On Aug 9, 11:33 am, B Richardson <br...@xxxxxxxxxxxx> wrote:

The sundiesel mentioned is Choren's diesel. I haven't been able to
find detailed numbers on EROEI for biogas, a number I recall seeing
is that is around 7, around 4 if upgraded to grid quality. There doesn't
seem to be as much effort put into figuring out EROEI as there has been
for corn ethanol.

Maybe this is because people are starting to figure out that EROEI
for gasoline is 0.74  Maybe EROEI is not so important.:

Uncle Ben

Ref. "Estimating The Net Energy Balance Of Corn Ethanol: An Update",
Economic Research Service Report number 814, USDA, July, 2002.

In summary, the finished liquid fuel energy yield for fossil fuel
dedicated to the production of ethanol is 1.34 but only 0.74 for
gasoline. In other words the energy yield of ethanol is (1.34/0.74) or
81 percent greater than the comparable yield for gasoline.

There some creative license taken by some shills there. The fossil fuel
is being artificially burdened with the BTU value of the refined end
product as if it were expended as an input. One gallon pumped crude give
0.74 gallons gasoline (I thought it was more like 0.8, but no matter). To
do a comparable comparison with corn ethanol you would have to burden it
with the BTU value of the solid corn feedstock, then the EROEI shrinks
considerably.  Either way the argument is of little use.

Being that fossil fuel is what we care about conserving, a more useful
comparison would be to compare total fossil fuel expended per ton-mile
when using ethanol vs oil. Ethanol wins, especially when considering
fossil liquids used. Problem is that energy and land expenditures
required to produce a couple of quads is enormous. Considering total
energy expenditures regardless of fuel type and not impending scarcity
oil easily wins.- Hide quoted text -

But that fallonious agument about oil, is why the shills even
invented
modern wind energy, robots, holograms, bio-diesel, and blogs.
Since oil only EVER EASILY wins anything because of the tax-
subsidized TRAINS
the oil cranks use. Not because it has anything to do with energy,






- Show quoted text -

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