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Researchers Develop Biofuel Alternative To Ethanol

coondoggie writes "Researchers say they have developed a method of using bacteria to convert decaying grass directly into isobutanol, which can be burned in regular car engines with a heat value higher than ethanol but similar to gasoline. The research could mean great savings in processing costs and time, plus isobutanol is a higher grade of alcohol than ethanol, according to the Department of Energy's BioEnergy Science Center (BESC) and its Oak Ridge National Laboratory"

69 of 320 comments (clear)

  1. Re:I have seen that work by Anonymous Coward · · Score: 4, Informative

    Warning: that link is goatse

  2. Finally! by damn_registrars · · Score: 3, Insightful

    Some grassoline that most of us can use. I've been intrigued by the biodiesel movement for some time now, but there are so few Diesel cars available for purchase in this country that it hasn't even been worth considering for me. If this will burn in a regular gas engine, though...

    --
    Damn_registrars has no butt-hole. Damn_registrars has no use for a butt-hole.
    1. Re:Finally! by samkass · · Score: 3, Interesting

      The VW TDI cars are excellent cars, but Diesel is now so expensive that despite their phenomenal mileage they're still not economical. I now pay at least $0.20 more per gallon than premium unleaded around here.

      --
      E pluribus unum
    2. Re:Finally! by Anonymous Coward · · Score: 2, Informative

      Running B100 in new, non-PD (Pumpe Duse) VW TDIs is highly inadvisable. They have a whole new high pressure fuel pump and aren't designed to work with it. Warranty voidance is almost guaranteed.

    3. Re:Finally! by mirix · · Score: 3, Insightful

      Unless the price of diesel is damn near double that of gas, you're still coming out ahead...

      --
      Sent from my PDP-11
    4. Re:Finally! by afidel · · Score: 2

      Except you can't run even B10 in the TDI! VW ran tests and they fouled the injectors so they won't warranty the engine to run even 10% biodiesel.

      --
      There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
    5. Re:Finally! by jemmyw · · Score: 2

      Except that newer european diesels are notoriously unreliable (more so than european cars) after they've racked up the miles. This is mainly because shrinking diesel technology down and making it more powerful requires stronger engine parts than older, larger diesels or petrol engines. This results in a higher failure rate.

      Probably fine for new vehicles, and great for fleet cars. But woe betide the second hand buyer.

    6. Re:Finally! by nospam007 · · Score: 2

      I just use vegetable oil from any discounter for my Smart diesel car.
      You can buy bulk at any oil mill.
      https://secure.wikimedia.org/wikipedia/en/wiki/Vegetable_oil_fuel

    7. Re:Finally! by tivoKlr · · Score: 2

      Apparently you haven't driven any of the VW TDI's since the 99's came out. They're far from stinky, underpowered or, dare I say, even hip. They're just efficient, surprisingly powerful (people talk horsepower but really drive torque) and reliable vehicles. They're also highly tunable so if you want it to go fast, it's simply a matter of opening up your wallet and deciding how fast you want to go. Trust me.

      --
      Ocean is land, covered with water.
    8. Re:Finally! by pclminion · · Score: 2

      The VW TDI cars are excellent cars

      Ehhhhh... Sort of. I've had a VW TDI Golf for about five years and I love the mileage I get out of it, but the electrical system is completely fucking weird. Lights come on and go off on the dash constantly, tail lights burn out repeatedly, the buzzer warning you that you've left your headlights on works about 5% of the time (leading to multiple dead batteries per year)... Despite all this I still love the car and I'll drive it until it falls apart, but I'd hardly call it an 'excellent' car with the sorts of problems I've had with it.

      Every person I've spoken to who owns a late model VW vehicle has the same complaints. There are gremlins in the electronics. If you can put up with the frustration of that (for me, it's included running out of fueld while at highway speeds because the gas gauge wasn't reading right, among other disasters), then yes, they are really great cars to drive. Mechanically, they work great. Just don't count on anything even remotely electronic to work right all of the time.

    9. Re:Finally! by pclminion · · Score: 5, Informative

      That's a bunch of fucking bullshit. With the TDI's, the only problem you'll encounter running biodiesel is maybe a dead injection pump due to seal cracking, which is caused by the lack of sulfates in the fuel... Since low-sulfur diesel was introduced about five years ago, all new vehicles have pump seals that work perfectly well with biodiesel -- my injection pump from 2002 went pretty quickly, and I had it rebuilt with modern seals that work properly with biodiesel and I've had no problems in over five years. Biodiesel will not hurt your TDI, it's a load of crap.

    10. Re:Finally! by zmollusc · · Score: 2

      Erm, I don't know exactly what you mean by 'newer' or 'racking up the miles', but most of the taxis round here (Decayingnorthernwasteland, UK) are powered by the 1.9 TDI VW/Audi/Skoda engine ( I think it has been replaced by a 2.0 now and I have no data for the 2.0 ) and they get about 175,000 miles out of them before they need any major parts. And these are vehicles that spend almost all their time in 30 and 40mph zones with stop lights every few hundred yards.

      --
      They whose government reduces their essential liberties for temporary security, receive neither liberty nor security.
    11. Re:Finally! by jo_ham · · Score: 2

      Love to see the cites on this.

      I own a "newer" european diesel and it is doing just fine as a gracefully ageing lady.

      Diesels are pretty bombproof as long as they are maintained - I know several that are well on their way to 200k without being clapped out.

      This "notorious" unreliability must be in a different Europe than the one I live in. I can't say I've ever heard anyone say that, and I'm friends with people who service cars for a living.

    12. Re:Finally! by kevinNCSU · · Score: 3, Informative

      I thought the new low-sulfur fuel came due to the new particulate emissions level mandates which are part of the problem. They added a particulate filter to the exhaust that has to periodically burn up the matter collected there. Most new diesel engines (post 2007) do this by injecting fuel into the cylinder right after the cylinder fires and exhaust valve opens so that it vaporizes and travels to the exhaust where it can heat up the particulate filter and burn off the collected matter. Since bio-diesel is denser and doesn't vaporize as easily it ends up getting stuck to the piston walls and getting into the engine oil where it dilutes it and then damages the engine.

      Not all new diesels have this problem, some companies decided to put an injector in the exhaust itself in order to deal with this, but most went the other route because it's cheaper so you shouldn't just assume post-2007 cars will run on even small mixtures of biodiesel anymore.

      Here's a guy who had a 2009 TDI that didn't end up running so well on B100: 09 TDI

    13. Re:Finally! by danbert8 · · Score: 2

      Let me look at the national averages of fuel right now...

      Regular unleaded: $3.53
      Diesel:$3.91
      E85: $2.98

      Now let's do it by BTUs:
      Regular unleaded (E10) is about 112kbtu per gallon
      Diesel is 130kbt per gallon
      E85 is 89kbu per gallon

      So the price of gasoline per thousand BTU is 3.15c
      Price of diesel per thousand BTU is 3.01c
      Price of ethanol per thousand BTU is 3.35c

      So as you see, diesel is more expensive per gallon but it is more dense (both energy and mass wise) so it is still cheaper than gasoline. Plus since you are probably getting 50% more miles per gallon in a TDI vs the gas powered Jetta, you are still coming out way ahead.

      --
      Yes it's an anecdote! Were you expecting original research in a Slashdot comment?
    14. Re:Finally! by ehrichweiss · · Score: 2

      I go to chinese restaurants and get the oil from them. They typically don't use enough to need one of those dump containers and they're happy to give it to me. I only need 15 gallons per week at most so this isn't a problem.

      --
      0x09F911029D74E35BD84156C5635688C0
    15. Re:Finally! by ehrichweiss · · Score: 2

      I drive an old Mercedes so this isn't an issue for me. It has mechanical fuel injection(and indirect injection at that) so it doesn't have those kinds of issues. Due to the reliability of the old Mercedes diesels, I'll probably never buy another (family) car again.

      --
      0x09F911029D74E35BD84156C5635688C0
  3. Patents, patents, lawsuits... by dimethylxanthine · · Score: 3, Interesting

    Yes, isobutanol provides many benefits over ethanol and petrol, but there's bound to be an IP issue pretty much any time these days, as Gevo is currently finding out. Of course at a time when solutions are needed fast.

    Perhaps (un)surprisingly BP is the plaintiff here...

    http://corporate.lexisnexis.com/news/corporate-counsel,intellectual-property/cat200003_doc1373404955.html

    1. Re:Patents, patents, lawsuits... by budgenator · · Score: 2

      There is not a lot of IP possible with a organism that occurs naturally, the "magic sauce" only comes into play when they try to engineer the little buggers to eat cellulose rather than starch. In the Clostridium family there are organisms the digest cellulose and organisms that metabolize starch into isobutanol, grow them together and sooner or later the little buggers are going to do the sex thing and exchange DNA amongst themselves; if your lucky you'll get a critter that does both and you've then made an end-run around all of that IP by avoiding the engineering.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
  4. We got your goatse upthread by Mr+Z · · Score: 3, Funny

    And it wasn't even a functioning goatse. Kids these days.

  5. Re:Call me when it's on shelves. by dimethylxanthine · · Score: 2

    There might have been one about fusion power, but there was one specifically about isobutanol.

    Gevo has been developing their own fermentation technology for over 8 years, until a patent issued to a JV between BP and Dupont on Dec 2010 is suddenly seeing Gevo in court

    If IP battles are going to go on in such a raging manner it will be decades before we (as consumers) see anything useful come out of these technologies.

    And we all know where things are heading while we linger...

  6. Re:I have seen that work by MorderVonAllem · · Score: 2

    Aren't all shortlinks posted here?

  7. Re:Its not called gas but its called... by Anonymous Coward · · Score: 5, Interesting

    grassoline sounds pretty snappy

  8. How many lobbyists by overshoot · · Score: 4, Insightful

    are backing this process? Because they're going to be up against some huge opposition from the big agribusiness firms plus Big Oil.

    --
    Lacking <sarcasm> tags, /. substitutes moderation as "Troll."
    1. Re:How many lobbyists by pitchpipe · · Score: 3, Funny

      Why do you hate job creating agri-business/Big Oil? Why do you hate jobs? Why do you hate America? Why do you hate Jesus and the children?

      --
      Look where all this talking got us, baby.
    2. Re:How many lobbyists by ATestR · · Score: 2

      When the day of rage comes, they will tell Big Agro and Big Oil to screw off. You can bet on that!

      And they won't tell the environmental folks the same thing by letting Oil start drilling in the US again?

      I agree that this may be a better solution than ethonol (What does it do to a car's engine?), but as with anything else, ONE SIZE FITS ALL doesn't work.

      --
      âoeAny society that would give up a little liberty to gain a little security will deserve neither and lose both.
  9. I'll believe it when I see it. by Sitnalta · · Score: 2

    The real breakthrough we need isn't growing bacterial to produce fuel. We already know how to do that quite well. The trick is scaling it up to practical volumes. Generally speaking bacterial who waste energy on producing fuel for us humans tend to be pretty fragile and finicky.

    1. Re:I'll believe it when I see it. by Michael+Woodhams · · Score: 2

      Yeast are not bacteria, they're fungi and are more closely related to you than to any bacteria (or, for that matter, any plant.)

      My understanding is that so long as there is sugar around, yeasts will metabolize it to alcohol so as to poison competitors for the food source, and later metabolize the alcohol once the sugar runs out. However, I'm not sure I got this from a reliable source, and I couldn't find confirmation in a quick web search. In any case, I think it is one of those rare evolutionary innovations and so is an exceptional case.

      --
      Quattuor res in hoc mundo sanctae sunt: libri, liberi, libertas et liberalitas.
  10. Re:ORNL by jimmydigital · · Score: 2

    Exactly... how does this stuff taste I wonder?

    --
    Every normal man must be tempted, at times, to spit on his hands, hoist the black flag, and begin slitting throats. -HLM
  11. Re:Call me when it's on shelves. by lgw · · Score: 5, Insightful

    Ethanol fuel in the US is a subsidy for corn growers, plain and simple. Any effect is has on the fuel supply is a distant afterthought. Therefore, any alternative to ethanol that isn't made from corn, corn, and only corn completely misses the point and won't get any national attention. I tell you, the first and most important step in balancing the US budget is to move the first few. most inluential, presidential primaries to states that don't grow corn!

    --
    Socialism: a lie told by totalitarians and believed by fools.
  12. Re:Its not called gas but its called... by finarfinjge · · Score: 2

    How about we call it food. Because that is what we are using to create this stuff. Sure, you can produce these things with waste, but corn is better and more efficient and hence much more profitable. As such, this will divert food from (literally) starving people to powering engines. Good luck identifying whether it is from corn or kelp. There is a perfectly good substitute for using food to create the fuel to power your car. It is called crude oil.

    Cheers

    JE

  13. Re:Call me when it's on shelves. by budgenator · · Score: 3, Interesting

    Clostridium cellulolyticum strain H10 (ATCC 35319) is a non-ruminal mesophilic cellulolytic bacterium originally isolated from decayed grass compost (Petitdemange et al., 1984). http://genome.jgi-psf.org/cloce/cloce.home.html

    Apparently it's already in your grass clipplings, so all you need to do is;
    1 separate out the C. cellulolyticum H10
    2 culture and grow an inoculating culture
    3 sterilize you grass clippling
    4 inoculate with you C. cellulyticum and ferment
    5 profit

    --
    Apocalypse Cancelled, Sorry, No Ticket Refunds
  14. Re:Its not called gas but its called... by dabridgham · · Score: 2

    If the isobutanol is made from decaying grass then it's not food for humans.

  15. Re:Its not called gas but its called... by Anonymous Coward · · Score: 2, Funny

    Gives a whole new meaning to the "Gas, Ass or Grass" bumper stickers

  16. Re:Its not called gas but its called... by Anonymous Coward · · Score: 2, Interesting

    You won't ever buy it. The companies refining the oil will. It will be blended with gasoline like MTB and ethanol to meet legislated requirements for oxygen in the gasoline. There is a bunch of reasons the oxygen is needed. Google them if you really need to know. Hopefully it means a price reduction at the pumps eventually if is actually cheaper in the end. Or at least the gas will go farther from a higher energy content.

  17. Re:Its not called gas but its called... by DJ+Jones · · Score: 4, Informative

    Actually corn sucks as a fuel FYI. Most other alternative fuels pack more punch per ounce including waste materials like methane. Unfortunately as Americans, corn is all we really have because that's one of the few the crops the government chose to subsidize starting back in 1929. We have so much corn that the government at times decided to purchase and burn tons of it just to keep prices inflated and protect farmers. But if you care to save our sacred crop that makes us fat, makes our livestock sick, and sucks as a fuel then more power to you.

    I support growing more grass even if we use it as fuel.

  18. Re:Its not called gas but its called... by Sarten-X · · Score: 5, Interesting

    Whereas right now, corn productions is managed efficiently, and the starving people all get food... right.

    Starvation is mostly a logistics and political problem. Low-grade corn is cheap near where it's produced, but that's generally not where people are starving. Moving the food to the people costs money, which raises the final cost beyond what the people can afford. A government could subsidize that cost, but that kind of action is often systematically abused and easily spun by political opponents as "propping up those greedy transport companies".

    Basic economic analysis tells us that with starving people needing food, but only being able to pay a lower amount for it, a smart distribution company will simply ignore those people in favor of markets that will turn a profit. The simplest solution is to make starving areas profitable, either with a subsidy or by lowering the cost of transport.

    --
    You do not have a moral or legal right to do absolutely anything you want.
  19. Re:The important question by drooling-dog · · Score: 2

    Well, it's a liquid, so physically of course you can drink it.

  20. Re:Its not called gas but its called... by benjamindees · · Score: 3, Insightful

    "We" aren't doing anything. I'm using my grass to create food, and fuel, and whatever else I need. You can use your grass however you want.

    --
    "I assumed blithely that there were no elves out there in the darkness"
  21. Re:Are you sure? by benjamindees · · Score: 2

    If plants are eating grass then I think we should probably look into that problem instead.

    --
    "I assumed blithely that there were no elves out there in the darkness"
  22. Another fossil fuel? by readin · · Score: 3, Informative

    If I understand correctly, one of the major problem with ethanol from corn is that corn requires fertilizer, and fertilizer these days comes from natural gas. Or to put it another way, ethanol is a fossil fuel! One of the other problems with ethanol is that it takes land that could be used for growing food and converts it to land used for growing fuel.

    How is this grass-based fuel any different? To make it in large quantities won't we still need fossil fuel based fertilizers and large tracts of land?

    --
    I often don't like the choices people make, but I like the fact that people make choices. That's why I'm a conservative.
  23. Re:Sorry, but.... by budgenator · · Score: 3, Informative

    First butanol isn't particularly water soluble, 87 g/L at 20 C and its density is 0.802 g/cm3, so it floats on top of the water

    --
    Apocalypse Cancelled, Sorry, No Ticket Refunds
  24. Hit paywall reading paper by Animats · · Score: 2

    This is a Government-funded paper, but it's behind a paywall. The price is $20.

    There are lots of biotech schemes for digesting cellulose into something more useful, but so far, none of them are cheap enough.

  25. Re:Call me when it's on shelves. by Martin+Blank · · Score: 3, Insightful

    Hold them all on the same day. Then you get it out of the way immediately without all the stupidity of a state with less than 1% of the population weeding out candidates before others get to vote on them. This makes it the perfect time to get in alternate voting methods as well to bring about a likelihood that someone will get a majority vote.

    --
    You can never go home again... but I guess you can shop there.
  26. land use by j1m+5n0w · · Score: 3, Insightful

    If I remember correctly, a couple of the proposed crops for making cellulosic ethanol are switchgrass and miscathus, and they both grow fine without human intervention. Switchgrass is native to North America. My understanding is that either crop could be used on land that isn't actively being farmed for food crops or that is "resting" for a few years as part of a normal crop rotation cycle.

  27. Re:Call me when it's on shelves. by DeathElk · · Score: 3, Funny

    I knew I'd have a use for this darn inoculating culture and this darn grass clipping steriliser one day. Now I just need a C. cellulolyticum H10 separator. I wonder if Uncle Bob will lend me his... [rubs chin]

  28. Re:Its not called gas but its called... by CyprusBlue113 · · Score: 2

    Soylent Green?

    --
    a handful of selfish greedy people are no match for millions of selfish, greedy people -u4ya
  29. Biofuel Dangers by localman · · Score: 3, Interesting

    If this grass or process can benefit from using arable land and irrigation, then please no.

    The biofuel thing has always mystified me. If there are two things in the world that are more scarce and fundamental to life than oil, they've got to be arable land and irrigation water. The corn ethanol thing caused all sorts of havoc in farming and food pricing, particularly with international farmers destroying staple food crops to grow fuel plants and selling corn to oil producers instead of families. This is not the way of the future.

    If this grass can grow in otherwise unusable land, and it can grow without diverting otherwise useful drinking or irrigation water, then fine. I'm very skeptical that even if that is technically possible that it will play out as such once the prices come in and farmers have to choose between taking money from poor hungry people or rich gas guzzlers.

    Can we just abstract the whole fuel source thing and skip to all-electrics like the Tesla and power them with... nuclear? solar? hydroelectric? wind? geothermal? hamsters?

    Cheers

    1. Re:Biofuel Dangers by dthx1138 · · Score: 5, Interesting

      The benefit of cellulosic biofuels like the ones mentioned in this study is that the entire plant can be converted to fuel (rather than just the fruit), resulting in higher yields; less land is needed to produce the same amount of energy.

      Additionally, most grasses that would be used as feedstocks, such as switchgrass, are perennial plants. According to Wikipedia:

      "The main agronomic advantages of switchgrass as a bioenergy crop are its stand longevity, drought and flooding tolerance, relatively low herbicide and fertilizer input requirements, ease of management, hardiness in poor soil and climate conditions, and widespread adaptability in temperate climates." In other words, switchgrass will be a viable crop in many areas that aren't suitable for food anyway."

      --
      I just found the box to change my sig. Um.... [timeless witticism].
  30. Distillation? by prograde · · Score: 3, Interesting

    Isobutanol is not very soluble in water (87 g/L) - I wonder if this process also avoids the need for distillation? Distillation is the most energy-intensive part of bio-ethanol production.

    If it doesn't separate, distillation will really suck, since it's boiling point (107.89 C) is higher than water.

  31. Re:Its not called gas but its called... by headLITE · · Score: 4, Insightful

    That's why it's an advance if we can create it from cellulose. It's not like we couldn't synthesize isobutanol from plants before. Making fuel out of sugar is no big secret. What's new is that this time, it's from parts we can't eat. It's not perfect, but it's an advance.

  32. Re:Its not called gas but its called... by 517714 · · Score: 4, Insightful

    The law of unintended consequences has proven many times that moving food to the starving tends to put the local farmers out of business creating the need to continue moving food. Why subsidize something to make it profitable? If there is not a natural profit in the venture, a government should do it directly thus saving taxpayers the "profit". Lowering the cost of transport does not fall under the term "simple solution". I'm not advocating letting people starve, but I don't know of any simple solutions that work though eliminating farm subsidies is a good start.

    --
    The US government have made it clear that we have no inalienable rights; any we do not defend vigorously will be taken.
  33. Re:Peoples still seem not to get it by tm2b · · Score: 3, Insightful

    Or, you know, build some modern nuclear power plants.

    --
    "It is our blasphemy which has made us great, and will sustain us, and which the gods secretly admire in us." - Zelazny
  34. Re:Its not called gas but its called... by Hognoxious · · Score: 3, Funny

    Just wait till they make fuel from fermented human waste. Assoline will confuse matters even more.

    --
    Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  35. Recombinant is natural by Kupfernigk · · Score: 2

    Sorry, recombination happens all the time in bacteria. It's hardly news. At least, they were teaching us about it in introductory cell biology at Cambridge in 1969, and the textbook was already years old.

    --
    From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
  36. Isobutanol is less toxic than anitfreeze by Aku+Head · · Score: 2

    LD50 for isobutanol is 2460 mg/kg.

    The orally lethal dose in humans of pure ethylene glycol is approximately 1.4 mL/kg.

    "Higher" alcohol usually means that it has more carbon atoms --- 4 in this case vs. 2 for ethanol.

    I would say that isobutanol is a "better" alcohol for fueling cars than ethanol because it has a higher energy density, doesn't evaporate as much and doesn't suck water out of the air.

  37. You can get the research paper here by Aku+Head · · Score: 3, Informative
  38. Re:Its not called gas but its called... by silanea · · Score: 2

    I know I will be grilled for writing this, but has it never occurred to you that it may not be such a good idea to send all that food to those starving people in the first place? The hunger in Africa and other places is, in my humble opinion, not caused by a shortage of food but by an overabundance of people (relative to the resources available there). Many African countries have annual population growth rates between 3 and 4%. Hell, even with the US population almost stagnating at less than 1% and European population in decline and China still enforcing its one-child policy the world population is still growing by about 1% p. a. No matter how much we restrict the use of food for energy production this is unsustainable.

    I agree that agricultural land should not be used for energy, but that is not because of all the starving people far away but because we need that land to produce enough food for ourselves to reduce or eliminate our dependence on imports (which indeed often take away local resources from where they are needed most, though that consideration is rather secondary to me).

    Oh, by the way, in case you missed the last 20 years of public debate: your crude oil will cease to be an option within my projected lifetime. You may want to come up with something else.

    --
    Rudolf Hess edited Mein Kampf. He was the very first grammar nazi.
  39. Re:Its not called gas but its called... by DarkOx · · Score: 2

    Lets get real here about this whole starving people issue.

    If we are talking about starving people in this country they should migrate. If you are someplace were you can't provide for yourself in the states you should leave that place, even if you have to walk. Its entirely possible to do that here. I am not saying its at all easy for some, but I really do think if you starve to death in the USA its partially because you allowed it to happen. There are enough programs, shelters, odd jobs, etc around that its possible for anyone to live at least very poorly.

    If we are talking about other places, we have to realize the powerful people their want it that way. When know when the price of bread gets to high you get revolts and revolutions, but there is a certain zone before that were the population spends most of its time trying to feed itself and not planning up risings. That is how folks like Gaddafi want to run or rather ruin their nations. Quite honestly it looks like the rebels are going to fail at this point without some outside help in the form of no-fly zone, and perhaps even some ground support. History has shown we can't give food away and get the results we want. It takes military intervention with also FREQUENTLY does not get the results we want. In that sense its not about passing out inexpensive often surplus grain but rather treasury busting military exercises, not to mention the cost to our families. Its not that I don't want to help the less fortunate but the truth is the price is often higher than even we here in America can really afford.

    --
    Repeal the 17th Amendment TODAY! Also Please Read http://www.gnu.org/philosophy/right-to-read.html
  40. Re:Its not called gas but its called... by slim · · Score: 2

    I hear hemp is a very good biofuel crop, for all kinds of reasons. Fast growing, easy to process, not too fussy about where it's grown. Its reputation as a narcotic works against it, but the kind of hemp you'd grow for biofuel would be an extremely weak drug.

    But by the same token, I'm never sure whether its proponents are just keen on it for druggy reasons.

  41. Re:Its not called gas but its called... by Paradigma11 · · Score: 2

    you gotta be kiding me. what you are touting as the solution is actually a big part of the problem.

    http://en.wikipedia.org/wiki/Agricultural_subsidy
    " Agricultural subsidies depress world prices and mean that unsubsidised developing-country farmers cannot compete; and the effects on poverty are particularly negative when subsidies are provided for crops that are also grown in developing countries since developing-country farmers must then compete directly with subsidised developed-country farmers, for example in cotton and sugar[28]. The IFPRI has estimated in 2003 that the impact of subsidies costs developing countries $24Bn in lost incomes going to agricultural and agro-industrial production; and more than $40Bn is displaced from net agricultural exports["

    "The CAP-related agriculture and trade policies that lead to the overproduction and dumping of EU agricultural products are said to undermine the livelihoods of millions of farmers in developing countries...."
    http://www.fao.org/ag/AGAInfo/programmes/en/pplpi/docarc/wp18.pdf

  42. Re:Its not called gas but its called... by asphaltcowboy · · Score: 2

    When is Grass Food? Think of all the grass waste that gets put into landfills. Maybe you could get something for this stuff now. Recycling center or home brew setups that you have to convert to fuel.

  43. Re:Its not called gas but its called... by Attila+Dimedici · · Score: 2

    You are aware that petroleum consists of what we call gasoline and what, as far as I am aware, everyone calls diesel, plus a bunch of other distillation fractions, aren't you? That is where the name OPEC (Organization of the Petroleum Exporting Countries) comes from.
    Actually, I just did a little research and discovered that "petrol" is not short for petroleum. It is actually short for St. Peter's oil and originated as the trade name for gasoline by the British wholesaler Carless, Capel and Leonard (their competitors referred to it as "motor spirit" until the 1930s, which certainly explains why "petrol" became the dominant term).

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    The truth is that all men having power ought to be mistrusted. James Madison
  44. Biodiesel an energy *carrier* not an energy source by gestalt_n_pepper · · Score: 2

    Biodiesel is essentially harvested solar energy, packaged in chemical form, with an efficiency that is probably comparable to solar panels. Worse, sunlight and resources devoted to growing grass is sunlight and resources not growing food. We can, and will, grow some of our fuel, but at nowhere near the scale, nor at the same energy return, as oil.

    Biofuel is one answer, but it's a small one-word, vaguely apologetic answer lost in the din. You want to generate energy? Think "nuclear."

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    Please do not read this sig. Thank you.
  45. Re:Call me when it's on shelves. by skids · · Score: 2

    isobutanol from cellulose is not a tiny improvement over isobutanol from sugars. It is a huge one.

    You do realize that cellulose is waste, while sugar is not only food but harder to produce in quantity, right? That we could use the leftover inedible parts of processed crops from the factory refuse piles to make the fuel?

    The real question is how much preprocessing of the feedstock they have actually managed to do away with.

  46. Re:Its not called gas but its called... by cayenne8 · · Score: 2

    Anyhow it seems all the massive research in energy and transportation is going to eventually make obsolete the combustion engine, the driver-dependent vehicles, and then eventually the asphalt-and-rubber tires traction. All very inefficient.

    Well, I sure hope all this takes place LONG after I'm old and dead. I happen to love driving my cars and motorcycles. Firing it up, cranking on the tunes and putting the hammer down on the road.

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    Light travels faster than sound. This is why some people appear bright until you hear them speak.........
  47. Re:Its not called gas but its called... by turtledawn · · Score: 3, Interesting

    Corn does make livestock sick. If you feed a cow nothing but corn, they get overgrowths of bacteria in their rumen, produce excessive gas, and can suffer from stomach and intestinal ruptures. This is a large part of the reason why 80% of antibiotics used in the USA are fed to farm animals as prophylaxis, in an attempt to prevent stomach ruptures and feedlot deaths. You're correct, though, that the sick livestock cost ranchers. They just don't see any (fast, easy) way out of the feedlot model. The feedlot cows are ALL sick, but just healthy enough to walk from truck to slaughterhouse. That's close to all the USDA requires.

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    Uh, "if it looks roughly mouse-shaped according to my infra-red sensitive pit, eat it"? --Chris Burke 09-08-10
  48. Re:Its not called gas but its called... by turtledawn · · Score: 2

    Silage is fed primarily to dairy animals and at cow-calf operations for exactly that reason. CAFOs to my limited knowledge feed primarily straight grain blends, with a heavy emphasis on corn, and just enough roughage to help keep the fermentation down. Silage is expensive to transport. Grain is energy dense.

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    Uh, "if it looks roughly mouse-shaped according to my infra-red sensitive pit, eat it"? --Chris Burke 09-08-10
  49. A.B.E. process...butanol by drwho · · Score: 2

    The A.B.E. process has been around for a while, producing acetone, butanol and ethanol via bacteria. I seem to recall some improvements on the process which create an end product which is entirely butanol. Why is isobutanol better than butanol?