Posted by: Lawyer Sanders | September 2, 2008

Attorney Sanders says biofuels are best source of energy for American motor vehicles in next 25 years.

Biofuels have been around as long as cars have. At the start of the 20th century, Henry Ford planned to fuel his Model Ts with ethanol, and early diesel engines were shown to run on peanut oil. Much of the gasoline in the United States is blended with a biofuel—ethanol. Ethanol is the same stuff as in alcoholic drinks, except that it’s made from corn that has been heavily processed.

There are various ways of making biofuels, but they generally use chemical reactions, fermentation, and heat to break down the starches, sugars, and other molecules in plants. The leftover products are then refined to produce a fuel that cars can use. Countries around the world are using various kinds of biofuels. For decades, Brazil has turned sugarcane into ethanol, and some cars there can run on pure ethanol rather than as additive to fossil fuels. And biodiesel—a diesel-like fuel commonly made from palm oil—is generally available in Europe.

Another excellent alternative to food crops for fuel is algae. The science is simple: Algae need water, sunlight and carbon dioxide to grow. The oil they produce can then be harvested and converted into biodiesel; the algae’s carbohydrate content can be fermented into ethanol. Both are much cleaner-burning fuels than petroleum-based diesel or gas.

Given the right conditions, algae can double its volume overnight. Unlike other biofuel feedstocks, such as soy or corn, it can be harvested day after day. Up to 50 percent of an alga’s body weight is comprised of oil, whereas oil-palm trees—currently the largest producer of oil to make biofuels—yield just about 20 percent of their weight in oil.

Biofuel yields are impressive: Soy produces some 50 gallons of oil per acre per year; canola, 150 gallons; and palm, 650 gallons. But alga are expected to produce 10,000 gallons per acre per year, and eventually even more. Go big green!!


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