Biofuels Digest special report on Colombian, Indian partnership for advanced biofuels
By special correspondent Joelle Brink
While Brazil has long been acknowledged as the world’s largest sugarcane ethanol producer, in only three years a new rival has shot up and is being hailed as a model for the entire ethanol industry. Recently USDA’s Economic Research Service (ERS) sent a team to South America to investigate differences between the Brazilian and Colombian models.
“Colombian government policies have aided in the development of the domestic ethanol industry”, begins the ERS report. “In 2001, Law 693 established that gasoline must contain a 10-percent ethanol blend by 2006 and a 25-percent blend within15 years. When the law was issued, Colombia had no ethanol production facilities. It was not until October 2005 that the country began to produce sugarcane-based ethanol.”
At present, sugar cane is produced only in Colombia’s Cuenca Valley, where it has been cultivated for more than 140 years. About 50% of the land, or 518,000 acres, are currently used for commercial sugar plantation. “About 20 percent of this land, or 101,000 acres,” according to the ERS report, “is used to raise cane for ethanol production. These findings suggest that, on average, 1 acre sown with sugarcane in Colombia provides about 740 gallons of ethanol. “According to ASOCAÑ,” ERS reports,” the Colombian sugar industry is the most efficient in the world when measured by sucrose yield tons/acres/year.”
“Colombia uses Indian technology rather than Brazilian technology,” continues ERS. (The Indian technology supplied to Colombia is that of ethanol engineering leader Praj Industries.) “According to engineers at Colombian ethanol plants, Indian technology enables the plants to comply with tight environmental regulations set by the Colombian government.”
“The advantage of Indian technology is that it produces low volumes of vinasse, the byproduct generated after the distillation of fermented molasses, and allows for the vinasse to be further processed. Most ethanol plants in Brazil do not further process vinasse. On average, Colombian ethanol production generates 1 to 2 liters of vinasse per liter of ethanol, whereas in Brazil, a liter of ethanol generates 15 liters of vinasse. If not properly disposed of or further processed vinasse can pose a threat to water or soil conditions.”
“Colombian processed vinasse contains high volumes of potassium, phosphor, and magnesium, which allows it to be sold as fertilizer. Annual vinasse sales return about $40 million to the industry. Lastly, ethanol plants in Colombia use about one-third of the water of Brazilian plants, and about one-half of the energy (ASOCAÑA 2007, 2008).”
“The progress of Colombia’s ethanol industry has encouraged the government, international organizations, and the industry itself to expand the production of biofuels,” concludes the report. Read the entire publication online here.
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