OT: A product from my University
CLIFFORD ILKAY
clifford_ilkay at dinamis.com
Thu May 29 14:22:22 EDT 2008
Rob Brandt wrote:
> Depends on the crop used, and location. In Brazil the ethanol is
> produced IIRC with a particular variety of sugar cane that won't grow up
> here. Canada using wheat waste is a great idea, but how much is
> produced? Ethanol was considered cheap to make here in the US too,
> until usage was mandated at a certain level. It *was* cheap because
> they were using surplus corn to make the smaller quantities. Now that
> it's mandated, a lot more is needed, there is no more surplus corn, food
> prices have skyrocketed because farm production has shifted towards corn
> for ethanol, there still isn't enough, and ethanol doesn't appear to be
> the bargain it once appeared to be.
Actually, it may be a good thing that commodity prices have now
increased to the point where farmers can make a good living. Perhaps we
can now stop subsidizing them. (Dream on.)
> Bottom line, it all depends on how much you need and if you have the
> farm capacity to to produce enough sugar in some sort of bio crop to
> meet your needs. I don't know anything about Canada's ethanol
> consumption or wheat production relative to the US.
On a per capita basis, Australian and Canadian wheat production leads
the world but on the basis of total production, they are seventh and
sixth in the world, respectively. See
<http://internationaltrade.suite101.com/article.cfm/top_ten_wheat_countries>.
Canada is the third largest exporter of wheat in the world though, after
the U.S. and Australia.
> I'm surprised that
> wheat waste (chaff?) makes a good ethanol source because it's relatively
> low in sugar compared to sugar cane and corn. If it does, and the US
> isn't doing it, it should.
Apparently, the preference is to make biobutanol, not ethanol because
it's easier to transport, it's not hygroscopic, and it packs more energy
for the same volume. This article
<http://www.parl.gc.ca/information/library/PRBpubs/prb0637-e.htm> from
the resource page for the conference my son attended
<http://www.saskschools.ca/%7Eics/program.html> casts doubt on the
spectacular claim that every car in Canada could be powered by fuel made
from biomass but this is an area of intense research so with a
combination of more fuel-efficient vehicles and more efficient
production techniques, it could be feasible. A direct quote from that
article:
"The energy yield from ethanol or biodiesel depends on the feedstock
used. For instance, one hectare (ha) of sugarcane grown in Brazil
produces almost twice as much ethanol as the same area of corn grown in
Canada. It would take slightly less than 2 ha of wheat or 0.6 ha of corn
grown in Canada to run a car entirely on biofuel for one year,(3) while
0.3 ha of sugarcane grown in Brazil would provide enough biofuel for the
same level of consumption.
By using 16% of its total corn production in 2006, the United States
replaced 3% of its annual fuel consumption with biofuels. According to
Agriculture and Agri-Food Canada (AAFC), if 100% of the total U.S. corn
production were used, that figure would rise to 20%.
According to an article in the New Scientist,(4) Canada would have to
use 36% of its farmland to produce enough biofuels to replace 10% of the
fuel currently used for transportation. Brazil, by contrast, would need
to use only 3% of its agricultural land to attain the same result.
In order for Canada to reach its biofuel target of 5% of fuel
consumption by the year 2010 (about 2.74 billion litres of ethanol and
0.36 billion litres of biodiesel), the AAFC estimates that 4.6 million
tonnes of corn, 2.3 million tonnes of wheat and 0.56 million tonnes of
canola will be required. If all these feedstocks were grown
domestically, they would represent 48-52% of the total corn seeded area,
11-12% of the wheat seeded area and about 8% of the total canola seeded
area in Canada.(5)
It is very likely that the proportion of farmland required will decrease
with improved yields and the cultivation of marginal soils, if the
demand for biofuels raises the price of feedstocks. However, the need
for feedstocks will remain high if the demand for biofuels increases.
Therefore, there is concern about the rationale for allocating farmland
to energy production rather than food production. Some observers believe
that there is already competition between the two markets: according to
the United Nations Food and Agriculture Organization (FAO), the rising
demand for ethanol derived from corn is the main reason for the decline
in world grain stocks during the first half of 2006.
The idea of finding feedstocks that are less demanding to produce is
becoming more popular. Scientists are looking for better ways of
producing ethanol from non-food crops and from biomass containing
cellulose.(6) The development of an efficient cellulose-to-ethanol
technology may promote the use of raw materials such as agricultural
residues, straw and wood chips. Iogen, an Ottawa-based company, has
built a demonstration plant and has been producing cellulosic ethanol
for several years now.
Biobutanol is another possibility, as it is produced from the same
feedstocks as ethanol, but has the advantage of delivering more energy.
The technologies exist, but they must be made more economically
attractive if they are to displace biofuel production from conventional
agricultural products. Once these technologies have been implemented,
biofuels will be more likely to enable a significant reduction in our
dependence on fossil fuels."
It will be interesting to see if some of the things that are now
considered pseudo-science, like zero point energy, attracts greater
interest and funding. Back to experimenting with my Tesla coil and zero
point module.
--
Regards,
Clifford Ilkay
Dinamis Corporation
1419-3266 Yonge St.
Toronto, ON
Canada M4N 3P6
<http://dinamis.com>
+1 416-410-3326
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