Wednesday, November 5, 2008

Convert Waste Oil Into Ethanol

Waste oil for a premium may still sound strange. Waste oil-rich cellulose and hemicellulose. Oil palm empty fruit bunches each containing 45% cellulose and 26% hemicellulose. High levels of cellulose on polysaccharides can be hydrolyzed into simple sugars and then fermented into ethanol. A palm oil mill (MCC) with a capacity of 60 tons of bunches / hour of waste can produce 100 tons / day.

In Indonesia there are 470 palm oil mills. Reached 28.7 million tons of waste in liquid form and 15.2 million tons of solid waste per year. If all the waste oil is processed into ethanol to replace all the needs of premium bias. Apart from oil palm bunches, ie raw materials other bioethanol straw. Rich rice straw cellulose and hemicellulose respectively 39% and 27.5%. If the production of rice straw is 10-15 tons / ha yield of 60% water, can be processed into ethanol 766-1148 liters / ha. According to the BPS in 2006, vast rice fields in Indonesia 11.9 million ha. That is, the potential of rice straw reached 119 million tons of potentially generate more than 9.1 billion liters of ethanol. The amount is sufficient to meet the needs of the national gasoline. In Indonesia research selosa waste into ethanol is still very minimal.

Sweden began research-based cellulosic ethanol since 1995 at the laboratory scale. Then, since 2005 the country made on a small scale to produce 200 liters / day. Indonesia is rich with sun and water, so it is easy to grow plant cellulose. If supported by adequate research, effective cellulosic ethanol production to be developed. Production of bioethanol from waste do not need a special planting, so no need to land expansion and the use of chemical fertilizers. In addition, the use of waste also help address environmental problems like water pollution, air and soil.

(Source: trubus 461-April 2008)


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