Investigators in Nevada have reported that coffee grounds can provide an alternative material for biodiesel fuel cars and trucks are cheap, plentiful, and environmentally friendly.
In a recent study, Mano Misra, Susanta Mohapatra, and Narasimharao Kondamudi said that the main obstacle to wider use of biodiesel is the low availability of quality raw materials to produce new energy. Coffee grounds contain 11-20% oil by weight. This amount is equivalent to traditional biodiesel raw materials such as palm oil or soybeans.
The farmers produce more than 16 billion pounds of coffee around the world each year. Production of coffee grounds from espresso, cappuccino, and coffee java often wind up in the trash or used as fertilizer. However, scientists estimate that the actual coffee grounds have the potential to add 340 million gallons of biodiesel to the world's fuel supply.
To validate this, the scientists collected from a retail coffee grounds coffeehouse chain and the oil. They then use a simple process nan cheap to change 100 percent of its oil into biodiesel fuel.
The results of this coffee-based fuel - which has the smell of coffee - have a great advantage in being more stable than traditional biodiesel fuel because of high antioxidant content of coffee according to the researchers. Solids left over from the conversion can be converted into ethanol or used as compost. The researchers estimate that this process can produce profits of more than $ 8 million dollars in America alone. They plan to develop a small scale factory to produce and test experimental fuel in the span of six to eight months.
Biodiesel fuel is a market that is being stretched. Experts estimate that annual global production of biodiesel fuel will reach the figure of three billion gallons in 2010. This fuel can be made from soybean oil, palm oil, peanut oil, and other vegetable oils, animal fats and even used frying oil from fast food restaurants. Biodiesel can also be added to regular diesel fuel. In addition, this product can be used as a separate product and is used as an alternative fuel for diesel engines.
source:
http://www.kaskus.us/showthread.php?t=7299368
http://www.chem-is-try.org/artikel_kimia/biokimia/ampas-kopi-sebagai-bahan-alternatif-bahan-biosolar/
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