Dedicated to the balanced discussion of global warming
Times Online – June 14, 2008
The title of this original article is not quite accurate. Scientists didn’t FIND the bugs – they MADE the bugs. The title should be:
While this doesn’t truly solve the problem of excess carbon dioxide in the atmosphere, it does inadvertently. Since the process of excreting this oil from waste cellulose and then burning it as liquid fuel is carbon negative, massive use of this synthetic oil would make the driving of cars “good” for the environment and would suck up the CO2 from industrial uses.
Now, I just hope that they have a way to turn these bugs off if they escape from the vat!
…when they feed on agricultural waste such as woodchips or wheat straw, they do something extraordinary. They excrete crude oil.
The company claims that this “Oil 2.0” will not only be renewable but also carbon negative – meaning that the carbon it emits will be less than that sucked from the atmosphere by the raw materials from which it is made.
LS9’s bugs are single-cell organisms, each a fraction of a billionth the size of an ant. They start out as industrial yeast or nonpathogenic strains of E. coli, but LS9 modifies them by custom-de-signing their DNA.
For fermentation to take place you need raw material, or feedstock, as it is known in the biofuels industry. Anything will do as long as it can be broken down into sugars, with the byproduct ideally burnt to produce electricity to run the plant.
Using genetically modified bugs for fermentation is essentially the same as using natural bacteria to produce ethanol, although the energy-intensive final process of distillation is virtually eliminated because the bugs excrete a substance that is almost pump-ready.
“Our plan is to have a demonstration-scale plant operational by 2010 and, in parallel, we’ll be working on the design and construction of a commercial-scale facility to open in 2011,” says Mr Pal, adding that if LS9 used Brazilian sugar cane as its feedstock, its fuel would probably cost about $50 a barrel.
You can read the full article here.
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