Handbook of Cellulosic Ethanol

First Generation Ethanol Production

The United States is the largest ethanol producer in the world, pro­ducing 13.9 billion gallons, and Brazil is the second largest producer with 5.57 billion gallons in 2011. These two countries together con­tributed to 89% of the world's fuel ethanol in 2011, as shown in the pie chart in Figure 2.1.

Almost all of the first generation ethanol produced in the United States is corn ethanol, and sugarcane is the main feedstock for its production in Brazil. Sugarcane gives a much higher ethanol yield compared to the corn used for ethanol production in the United States; a comparison of the yields is shown in Table 2.2.

Handbook of Cellulosic Ethanol

Disadvantages of Ethanol

There are a few disadvantages to ethanol when compared to gaso­line, including: 1. Lower energy density in ethanol is the most signifi­cant disadvantage. A kilogram of ethanol has about 66% …

Handbook of Cellulosic Ethanol

The inevitable decline in petroleum reserves and the rise in demand for oil from rapidly growing economies have caused soaring oil prices, and coupled with climate change concerns have contributed …

Biodiesel Education Grants

Competitive grants are available through the Biodiesel Fuel Education Program (Section 9006) to educate governmental and private enti­ties that operate vehicle fleets, the public, and other interested enti­ties about the …

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