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EDUCATION & OUTREACH
Bioenergy 101 What are biofuels? The bioeconomy is about more than biofuels, but the promise and the potential of biofuels for the economy and the environment have captured the attention of politicians, the public, and the media like no other bioproduct. Plant sugars have been fermented into ethanol for thousands of years. Currently, most ethanol is made from starch from corn grain or sucrose from sugar cane. The goal of GLBRC scientists is to make ethanol from the sugars present in “lignocellulose”, which are found in all parts of plants, including leaves, stems, and wood. Oils from plants such as canola, sunflowers, corn, and soybeans can be converted into a substitute for diesel fuel. Both ethanol and biodiesel are currently available to consumers, on a limited scale. Biodiesel and ethanol are typically sold as blends with regular gasoline or diesel fuel. For example, E85 is 85 percent ethanol and 15 percent gasoline; B20 is 20 percent biodiesel and 80 percent petroleum diesel. Despite the recent rise in the prices of gasoline and diesel fuel, the major hurdle to the widespread use of biofuels is still cost. Although biomass raw materials are inexpensive (in fact, many are considered waste products, such as corn stalks and wood chips), the processing costs for turning biomass into ethanol and biodiesel is relatively expensive. At $20 per barrel, oil is clearly a cheaper source of liquid transportation fuels than biomass. Over about $120 per barrel, biofuels become economically competitive. Aside from cost, biofuels have the potential to contribute in two additional significant ways to the worldwide energy problem. First, they can be produced locally, thus reducing dependence on unstable foreign markets and governments. Second, they produce lower amounts of greenhouse gases and thus can contribute to the amelioration of global warming. Learn more in the GLBRC Bioenergy Glossary KBS – Research Experience for Undergrads UW – Research Experience for Undergrads |
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©GLRBC & 2008 Michigan
State University. All rights
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