LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

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Thread: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

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    LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    By Scott Doggett

    Researchers at the South San Francisco biotechnology startup LS9 claim today to have discovered a way to produce alkanes - the major hydrocarbon constituents of gasoline, diesel and jet fuel - in a direct, simple conversion from sugar.

    If true, the development could lead to a significant reduction in the cost of producing "drop-in" hydrocarbon fuels that are low-carbon, sustainable and compatible with the existing fuel distribution infrastructure.

    "This is a one step sugar-to-diesel process that does not require elevated temperatures, high pressures, toxic inorganic catalysts, hydrogen or complex unit operations," said Steve del Cardayre, LS9's vice president of research and development.

    In an article published in Science, LS9 researchers announced the discovery of novel genes that, when expressed in the bacterium E. coli (pictured), produce alkanes, the primary hydrocarbon components of the fuels mentioned above.

    Alkanes, also known as paraffins or saturated hydrocarbons, are chemical compounds that consist only of the elements carbon and hydrogen (i.e., hydrocarbons). Alkanes include methane, ethane, propane, butane and octane.

    It is the first description of the genes responsible for alkane biosynthesis and the first example of a single-step conversion of sugar to fuel-grade alkanes by an engineered microorganism.

    According to an article in Biofuels Digest, scientists have spent the last 20 years failing in their attempts to identify the genes that enable particular natural organisms to directly convert biomass into alkanes.

    The LS9 team claims to have succeeded by looking into the genomes of bacteria that produce alkanes in nature, which are known as cyanobacteria.

    Full article:
    http://blogs.edmunds.com/greencaradv...to-diesel.html

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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Interesting for sure.

    Really like the partially 'de centralized' aspects and possibilities......

    Two more like it to go alongside.


    Co-Electrolysis of CO2 and H2O for the Production of Liquid Fuels

    23 July 2010

    Researchers at Columbia University’s Lenfest Center for Sustainable Energy, in collaboration with Risø National Laboratory for Sustainable Energy, DTU, are investigating the high-temperature co-electrolysis of CO2 and H2O using solid oxide electrolysis cells (SOECs) to produce a syngas for conversion into liquid hydrocarbon fuels.
    http://www.greencarcongress.com/2010...0723.html#more

    and -




    Researchers Demonstrate New Solar Carbon Capture Process; STEP Converts CO2 to Solid Carbon or CO for Use in Fuels and Chemicals Synthesis

    21 July 2010


    Dr. Stuart Licht at George Washington University and colleagues have published the first experimental evidence of their new solar thermal electrochemical photo (STEP) process, which combines electronic and chemical pathways to convert CO2 to carbon or to carbon monoxide for subsequent use in synthesizing a range of industrially relevant products including hydrocarbon fuels. (Earlier post.) Their paper was published online 14 July in ACS’ Journal of Physical Chemistry Letters.

    The STEP process uses a high temperature electrolysis cell powered by sunlight to capture CO2 in a single step. Solar thermal energy decreases the energy required for the endothermic conversion of carbon dioxide and kinetically facilitates electrochemical reduction, while solar visible energy generates electronic charge to drive the electrolysis.

    The STEP process is fundamentally capable of converting more solar energy than photovoltaic or solar thermal processes alone, according to the researchers. -

    http://www.greencarcongress.com/2010...or-co-for.html


    There are literally at this point, hundreds more.

    Gee, looks like we may not need things like battery hybrids ......... and cap and trade credits........ and their related derivatives after all - which means of course, for sure we will have them anyway.
    Last edited by AMERICA 123; 07-31-2010 at 02:30 AM.
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    "If America is circling the drain, Goldman Sachs has found a way to be that drain — " Matt Taibbi

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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Sounds interesting.

    Hopefully this can lead to a cheaper and more efficient way of producing fuel from alternative energy sources.
    Research is what I am doing when I don't know what I am doing.

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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    If they really can make cheap sustainable fuels then I say Big Blocks for everyone!
    They said it couldn't be done. That is until I did it.

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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Sounds promising and I say big Cummins, Detroit Diesel, Caterpillar for everyone

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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    A future LS9 powered by this LS9 concoction??

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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Quote Originally Posted by Carguy View Post
    A future LS9 powered by this LS9 concoction??
    Remember, before crossing the street, always make sure to look both ways. For Toyotas.

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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Quote Originally Posted by Carguy View Post
    A future LS9 powered by this LS9 concoction??
    When I read the thread's title... I was like "huh?! an LS9 can talk?!"

    This sounds interesting indeed... I love how people can still be innovative!

    In the sea of new automotive faces,
    there's nothing like the appreciation and beauty of an older model. Let's represent!


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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Thanks for the heads up...this sounds very promising and remarkably innovative....sure are some smart, focused people out there!
    "The only normal people are the ones you don't know well". unknown


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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Bye bye ethanol
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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Quote Originally Posted by ne_one View Post
    g fuel distribution infrastructure.

    "This is a one step sugar-to-diesel process that does not require elevated temperatures, high pressures, toxic inorganic catalysts, hydrogen or complex unit operations," said Steve del Cardayre, LS9's vice president of research and development.
    Sounds like cold fusion to me. Let's see if anyone can duplicate what they claim to have done.

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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Quote Originally Posted by AMERICA 123 View Post
    Interesting for sure.

    Really like the partially 'de centralized' aspects and possibilities......

    Two more like it to go alongside.




    http://www.greencarcongress.com/2010...0723.html#more
    .
    That one sounds like it would have an overly negative EROEI...



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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    Quote Originally Posted by D C View Post
    Sounds like cold fusion to me. Let's see if anyone can duplicate what they claim to have done.
    Sugars are carbons and hydrogens and oxygens, alkanes are carbons and hydrogens, not nearly as complex as splitting/fusing the atom.



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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    I'd rather they've sped up research on ANG (adsorbed natural gas), gasoline still requires masses of additives and does not burn too clean (an don't even get me started on diesel). Natural gas is much less harmful to the environment (basically, it's all CO2 - and less than any other fuel to boot - when it burns), and to the engines themselves.

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    Re: LS9 Says It's Found Genes That Enable One-Step Conversion of Sugar to Diesel

    We are too lazy and coddled to want serious substantive change to make any alternatives to fuel. It's the truth, so don't bother wasting time arguing it, we've had enough time to make a difference and have failed miserably.

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