Can Enough Cellulosic Biofuels Be Produced to Matter?
When it comes to producing ethanol, sugar is the key component. The sugar base can vary widely with current plants often using corn, soybeans or cane sugar. In an attempt to use biomass that has no food value, researchers have perfected a way to transform waste biomass, like wood chips into ethanol. Other common alternative sugar sources include switchgrass.
The focus on cellulosic biofuels peaked during the Bush years of the United States. According to then President Bush, the United States would produce 35 million gallons of ethanol by 2017. The most popular method of production uses corn starch which is limited to about 15 billion gallons per year. So, where were the remaining 20 billion gallons going to come from? The answer is cellulosic biomass.
Throughout World War I and World War II, cellulosic biofuels were used as an alternative form of energy. The plants created to manufacture the fuels were not profitable during either war and thus they were closed. These plants used acid to treat wood before pulling out the sugars needed to produce ethanol. The process yielded 50 gallons of fuel per ton of biomass in optimal conditions and used more energy during the manufacturing process than the resulting energy yielded.
Technology changes and the use of enzymes to treat biomass have revolutionized the process and thus the promise made by the former President of the United States. More than $350 million in funding was provided to start the production process. The two types of production funded included thermo-chemical and cellulosic.
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This entry was posted on Thursday, January 26th, 2012 at 7:09 am and is filed under Biofuels Advantages. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.
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