Slashdot Mirror


Are Biofuels Still Economically Feasible?

thefickler writes "With falling gas prices, and the end of capitalism as we know it (otherwise known as the credit crisis), the biofuels industry is not looking as viable as it once was. Indeed biofuel production has fallen well short of expectations, with biofuel companies closing down or reducing production capacity. It appears that the industry's only hope is government support."

6 of 186 comments (clear)

  1. Algae is the future by russbutton · · Score: 5, Interesting

    The future of biofuel and food production is algae. It's the most primitive plant form there is and is therefore the most efficient at converting solar energy into an energy store (oil) or edible substances. A lot of work is going to have to be done to develop methods of growing and harvesting algae, but that's just engineering. Better get used to the idea of algae steaks as an alternative to soy burgers... Yum!

  2. Re:Short Answer No, But They Never Were by russbutton · · Score: 5, Interesting

    You are correct if you assume that you're talking about food crops like corn, or even switchgrass as the biofuel source. They require traditional farming resources such as fertile land, good weather, water and fertilizer. But with algae, grown in carefully controlled environments like the Vertigro system, which is happier in the desert and consumes CO2 and inorganic materials, and is at least one or two orders of magnitude more efficient at producing oil and/or edible food stuffs, and the prospects change a great deal.

  3. Re:Short Answer No, But They Never Were by OpenGLFan · · Score: 4, Interesting

    Biofuels from macrocrops are generally infeasible, especially corn.

    Biofuels from algae are energy-positive, consume much smaller areas, and are currently our best hope of weaning ourselves from foreign oil. If we had invested in bioprocessing techniques for algae the way we invested in securing our oil supply halfway around the world, we would be an oil-producing country by now.

  4. Hey, this happened once before... by ducomputergeek · · Score: 4, Interesting

    Back during the 1970's there was a fuel shortage and the bio-fuels industry picked up. Then we saw $30 a barrel and lower oil that drove all the producers out of business. Some say it was a calculated move on the part of OPEC to make sure that no competition arises. I'm not sure I'd go that far as OPEC nearly destroyed itself due to cheating in that period...

    It's not much of a surprise that it's happened again. (Gee what happened to that $200 a barrel mark the media was predicting by the end of the year). Bio-fuels were another way for the agriculture lobby to get more money for corn. So with cheap oil, everyone will go back to worrying about other things and in 10 -15 years when there is another disrupution and the prices sky rocket, people will once again start up bio fuel projects.

    You'd think we'd learn, but to quote Mark Twain: History doesn't repeat itself, but it sure does rhyme.

    --
    "The problem with socialism is eventually you run out of other people's money" - Thatcher.
  5. Research still ongoing by Sooner+Boomer · · Score: 4, Interesting

    Research into biofuels is still going full speed. I'm involved in a project using switchgrass to produce diesel (and other products) directly through pyrolysis and the Fisher Tropsch process. Other projects are looking at using switchgrass as a feedstock for conversion to ethanol, or as a "lignocellulosic material" that can be co-fired with coal, reducing costs and pollutants.

    --
    Chaos maximizes locally around me.
  6. The future is bio-hydrocarbons... by Genda · · Score: 4, Interesting

    There are fundamental fallacies to our existing economy. They assume a workable environment in which to do business, and that the environment is infinite and free. If you look at the economic cost of global warming over the next hundred years, the global price rises to hundreds of trillions of dollars. A few of the costs include;
    A) Land lost by sea level rise
    B) Damage caused by increase flood and drought
    C) Loss of critical biostocks (crash in fish populations, ocean acidification, key land ocean and air species)
    D) Storm damage
    E) Increased spread of tropical diseases
    F) Wars caused by loss of water, food, and habitable land
    G) Loss of land for agriculture
    H) Failure of environmental systems supporting a minimum quality of life

    Algae based oil is an excellent fuel alternative. Another is bioengineering new fungii discovered to produce diesel fuel directly from cellulose. Both of these technologies are utterly plug and play in our current petroleum base infrastructure. Both sequester carbon from the atmosphere, so their burning adds no new carbon and using them for other purposes like petrochemical feed-stocks actually removes carbon from the atmosphere. Both create tremendous new economic opportunities, and if supported by the government and the current petroleum business point us to a workable gap stop solution until helium cooled pebble bed fission and fusion are perfected.