Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Oil Plants

  1. Jul 27, 2005 #1
    An idea I had some weeks ago is genetically engineered plants that synthesize petroleum oil from hydrogen and carbon. If the need for such a thing was upon us in the next few years, how hard would it be to create oil-gourds, bamboo, algae etc.? Also to what level could huge fields of such plants cope with the world's oil needs?
     
  2. jcsd
  3. Jul 28, 2005 #2

    Ouabache

    User Avatar
    Science Advisor
    Homework Helper

    You and some bright scientists are both on the same track.
    In 2000, Bernie Tao at Purdue talked about using plants oils, as a viable substitute for petroleum. Coconut oil and other tropical oils could make a high octane biodiesel fuel, because they produce oils with relatively short carbon-chains. Soybeans and corn are two of the highest oil-yeilding plants but they make oils with longer carbon-chains and would require additional energy to process them into a gasoline-like fuel. However they could be genetically modified to yield shorter carbon-chain oils.

    There are many industries dependant on petroleum resources beside transportation and energy. They are used in paints, laquer, printing inks, adhesives, plastics, synthetic rubber, asphalt, polish, candles, clothing, medicine and a host of other products. Prior to World War II, plant oils were used to make many of these products.

    As far as coping with world oil needs, we have so many other useful energy alternatives (solar, wind, geothermal, tidal, hydroelectric and fuel cells) that become cost effective as petroleum supplies are depleted.
     
    Last edited: Jul 28, 2005
  4. Jul 28, 2005 #3

    The link says we'll always need petroleum oil to produce some kinds of plastics, why is that? Can't the hydrocarbon cains from these plants be built up into longer lengths like petroleum oil is? It's all the same chemical structure, except length. What's the problem with that?
    This also forgets about Drexler style nanotechnological assemblers wich will exist oneday.
     
  5. Jul 29, 2005 #4

    Ouabache

    User Avatar
    Science Advisor
    Homework Helper

    The carbon chains in plant oils are longest, in the fatty acid chains. All the natural ones, at largest are only 22 Carbons long. Perhaps some biochemists can lend some more insight. I don't believe plants can make a fatty acids 200 C's long.
    Personally, I think once we run out of petroleum, we will get along fine without it. We are pretty ingenious creatures and can find other materials to work with.

    Synthesis may be another alternative in making hydrocarbons of prescribed chain lengths, but is very energy intensive. There would have to be a great need for the end product (e.g. medicine) for that kind of investment. Future technologies (like nanotechnology which you mentioned) may offer even more efficient methods of synthesis.

    We need to take caution, in synthesizing all sorts of materials, not produced in nature. Our bodies did not evolve in their presence and may be potentially harmful to us.
     
  6. Aug 4, 2005 #5

    That's what animal testing is for:) Sure, it makes me sad to see plastic bottles out in the woods that have been there for longer than I've been alive. Plastics can build things you really don't want to rot however. Also medical like you said. That stuff wouldn't work if it was made of cast iron, woven hemp fibers etc.
     
  7. Aug 5, 2005 #6

    Ivan Seeking

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    http://www.the-tree.org.uk/EnchantedForest/wyrd2.htm

    http://www.gi.alaska.edu/ScienceForum/ASF3/358.html

    Twenty years ago, when I first mentioned this tree to my workmates I was nearly laughed out of the room. :biggrin:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Oil Plants
  1. Plant stomota (Replies: 2)

  2. Respiration in plants (Replies: 1)

Loading...