The EROEI for ethanol has been estimated to be between 1.67:1 to 0.78:1.Which of the following is NOT a reason for the low ethanol EROEI values?
A) Ethanol has a lower fuel content than petroleum fuels.
B) Large amounts of energy are required to distill the ethanol after it is formed.
C) Some ethanol is changed to methane (CH₄) during the distillation process, so less ethanol is recovered.
D) Ethanol is not easily available.
Correct Answer:
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