The relationship between corn, ethanol and autofuel replacement US-style

There is a direct relationship between the volume of corn converted to ethanol with the % of gasoline replaced in the US. Its shown more clearly if you click the line which contains the mysterious word Thi  at the bottom of this poor thumbnail.

I’ve created the graph using data from the US Coalition for Ethanol and two of my favourite US Federal sites The Bureau of Transportation Statistics and the EIA Annual Energy Review, Table 10.3 andI did some simple sums. There trouble with corn ethanol is that therelationship is linear, for every 10% more of the corn crop that isused to make ethanol another 1% of demand for gasoline is replaced. Ihave worked out how we could replace 10% of the total US motor fueldemand… have you? The latest figures show that in 2007 the US consumed just under 7bn gal ethanol and 176bn gal motor fuels.



ethanol corn relationship.pngThi

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One Response to The relationship between corn, ethanol and autofuel replacement US-style

  1. larryhagedon 22 June, 2009 at 4:05 am #

    The big factor missing from your chart is that each kernel of corn that is processed for best usges also produces many food items, high protein animal feeds, pharmaceuticals, plastics, many industrial chemicals, plus ethanol and diesel fuels.

    The fuels are only a portion of the product from each kernel of corn, which percentage varies from producer to producer.

    As processing corn for best useages is much more efficient and productive than simply feeding corn to the pigs, we will be processing ever larger percentages of corn for best uses as fast as we can build the processing plants.

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