Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: alloysteel

Biofuels are not a negative energy gain. Accounting for all inputs, ethanol offers about a 20% net energy capture from sunlight. Turning sunlight into mobile fuel is what it is all about. The 20% gain even accounts for the steel production for the farm equipment. From my personal perspective, it takes about 1/2 gallon to plant an acre of corn generating 400 gallons of ethanol/acre. The current goals include generating 1000 gallons of ethanol/acre. The byproducts are also fed to livestock as a high protein supplement.

Most people I know could ingest far fewer calories and do just fine.


8 posted on 11/26/2007 11:02:52 AM PST by Neoliberalnot
[ Post Reply | Private Reply | To 5 | View Replies ]


To: Neoliberalnot

A higher portion of agricultural output was dedicated to transportation fuel in Malthus’ day than is so today, even with the advent of bio-fuels.


16 posted on 11/26/2007 12:13:04 PM PST by Mr. Lucky
[ Post Reply | Private Reply | To 8 | View Replies ]

To: Neoliberalnot

What is your bushel yield per acre?

Can’t wait until we hit the 300 bushel average...

hehehe


17 posted on 11/26/2007 12:13:17 PM PST by TexanToTheCore (If it ain't Rugby or Bullriding, it's for girls.........................................)
[ Post Reply | Private Reply | To 8 | View Replies ]

To: Neoliberalnot; stylin19a
Most people I know could ingest far fewer calories and do just fine.

I agree.

Personally I am not a great fan of biofuels, particularly ethanol, nor a fan of the economic need for increasing population, but the doom and gloom about agriculture, its land and production in the US, is absurd.

In the long run we (the US) are indeed in the catbird seat, if of course we don't plunge further into Leftism, which destroys everything. (Actually we need to reverse somewhat).

Only another verification that the global manipulators, who know this, really are conspiratorial a**holes, ala Soros, Buffet, Hillary, Rockefellers, the CFR, et al.

18 posted on 11/26/2007 12:37:45 PM PST by jnsun (The LEFT: The need to manipulate others because of nothing productive to offer)
[ Post Reply | Private Reply | To 8 | View Replies ]

To: Neoliberalnot

My point was not that the biofuels would or would not be a net energy benefit. But in order to achieve that benefit, even GREATER amounts of fossil fuels, in some form, would have to be extracted and utilized, just to keep us running in the same place.

TANSTAAFL (There ain’t no such thing as a free lunch).

My personal choice for extracting energy from agricultural by-products is either using Thermal Depolymerization on all kinds of organic waste (sewage sludge, slaughterhouse waste, old tires, used newspapers, or waste from food processing) to produce kerogen, a substance very similar to crude oil, but with none of the grit and saline of crude petroleum, or go to Plasma Waste Reduction, which uses an electric arc with an operting temperature of about 33,000 degrees Fahrenseit (about three times the temperature of the surface of the Sun), which reduces EVERYTHING organic to a mixture of very hot carbon monoxide and hydrogen gas. The second method is used as a heat exchange to superheat steam to drive a power generation unit (same as power generation stations everywhere), then BURNING the syngas produced as fuel to drive additional steam generation units.

Electricity output of the second system is about three times the amount of power necessary to keep the plasma arc firing, and it takes ALL kinds of organic and inorganic waste. EVERY kind of hazardous chemical is reduced to its constituent elements in this process, with the exception of radioactive materials, and the non-gaseous products are reduced to a glassy slag, which is tapped off, and used as aggregate for concrete or road-building, as it is mostly silica and various kinds of mineral salts. Substances like potash, soda ash, phosphates, lime, chlorides, and practically every other metallic or inorganic element are dissolved in this molten silica slag.

Now THAT is taking two negatives (inadequate energy supply, excessive waste stream) and turning it into a positive (plentiful electricity). And electricity can substitute for vast amounts of steady-use energy.

This world will NEVER have to run out of liquid petroleum, or access to energy. Human beings are smart enough to convert this otherwise wasted stream of resources to our benefit.

Even carbon dioxide may be converted back into a “biofuel”, by using tank and piping systems to hold highly specialized algae, and allow them to form kerogen, which may be used exactly like crude oil.

Carbon dioxide is NOT a pollutant in earth’s atmosphere. It is a highly essential compound, without which life could not exist. In fact, it would prove impossible to remove ALL CO2 from our atmosphere. It just keeps on coming back, and is absorbed by photosynthesis.


20 posted on 11/26/2007 12:53:23 PM PST by alloysteel (Ignorance is no handicap for some people in a debate. They just get more shrill.)
[ Post Reply | Private Reply | To 8 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson