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Tuesday, July 17, 2007

 

MEN & EVENTS
By Alito L. Malinao
Ethanol: Boon or bane to mankind?


On August 29, 2005, President Macapagal-Arroyo launched in Malacañang an ambitious program that would promote the use of ethanol-blended gasoline and slowly wean the country from imported oil.

During the launching of the E-10 program (10-percent ethanol blended gasoline), the President said it was time to shift to what she described as the “fuel of the future” because of the unabated rise in the price of imported fossil fuel.

A few months later, in another ceremony in Malacañang, the President was presented with a prototype Ford Focus which uses ethanol as fuel.

Ethanol or ethyl alcohol is the alcohol found in alcoholic beverages but is denatured (unfit for human consumption) when used for fuel or industrial purposes. Ethanol is usually blended with gasoline for it to be used to run motor vehicles. The blend is usually 10-percent ethanol and 90-percent gasoline, thus giving birth to a type of gasoline called E-10.

Since the launching in Mala­cañang, the government and the private sector have stepped up efforts in promoting the use of ethanol in the country.

Recently, Basic Petroleum Corp. announced that its local ethanol plant in Zamboanga del Norte will be fully operational by the last quarter of 2009. Basic bought the Zambo Norte BioEnergy Corp. (ZNBC), a subsidiary of ZN Biofuels Partners, Inc.

ZNBC is engaged in sugar-cane plantations for ethanol production. Its assets include a 22-hectare site for its proposed plant and more than 6,000 hectares of leased land in Zamboanga del Norte, which will also be planted to sugarcane.

Upon full operations by 2009, its Zamboanga facility is expected to produce 200,000 liters of ethanol daily.

RP among the last to shift to ethanol

The Philippines is actually among the last countries in the world to shift to ethanol. At the fuel pumps in São Paulo, customers are given the choice on whether to fill their tanks with gas or alcohol. Since the mid-1970s, Brazil has worked to replace imported gasoline with ethanol, an alcohol distilled from locally grown sugarcane. Today ethanol accounts for 40 percent of the fuel sold in Brazil.

Brazil is the world’s leader in ethanol production, distilling some 4 billion gallons (15 billion liters) in 2004. The United States is rapidly catching up, producing 3.5 billion gallons last year, almost exclusively from corn. China’s wheat- and corn-rich provinces produced nearly 1 billion gallons of ethanol, and India turned out 500 million gallons made from sugarcane. France, the front-runner in the European Union’s attempt to boost ethanol use, produced over 200 million gallons from sugar beets and wheat. However, the total world production of ethanol is able to replace only about 2 percent of total gasoline consumption, just a drop in the proverbial bucket.

Fly in the ointment

Ethanol is now widely accepted the world over as an alternative fuel mainly because it is cheap and a renewable form of energy. Its proponents are saying that because ethanol has a high octane rating, it reduces polluting emissions such as carbon dioxide.

But a recent study conducted in the United States showed that ethanol, taunted as the green alternative, could actually create dirtier air and cause slightly more smog-related deaths.

In his study, Mark Jacobson, a Stanford University civil and environmental engineering professor, said that nearly 200 more people would die yearly if all vehicles in the US run on mostly ethanol fuel blend by 2020.

The study said that about 4,700 people die from respiratory problems from ozone, the unseen component of smog, along with small particles. Ethanol would raise ozone levels, particularly in certain regions in the US where smog is already a serious problem.

“It’s not green in terms of air pollution,” Jacobson said, “If you want to use ethanol, fine, but don’t do it based on health grounds. It is no better than gasoline, maybe even slightly worse.”

Jacobson’s study, based on a computer model, was published in the online edition of the Environmental Science and Technology Journal. It has added to the already messy debate on whether ethanol is really the answer to the global energy crisis.

All over the world, politicians, environmentalists, industry leaders and other stakeholders have clashed on just how much ethanol can be produced, how its mass production would affect food security and to what extent will ethanol cut back on fuel consumption and in fighting pollution, especially global warming gases.

  malinaolito@yahoo.com

   
 

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