Gasohols -- gasoline and alcohol (ethanol) fuel blends -- have been used in auto vehicles in Brazil since the 1920's. Compulsory addition of alcohol to gasoline started in the 1930's to hedge the important sugar industry against sugar price fluctuations in the international market. A national alcohol program was launched by the Government in 1975 now aimed at increasing alcohol production for the fuel and chemical feedstock markets. A tentative 20% alcohol level in gasohol, uniform all over the country, is a goal already achieved in some areas such as the City of Sao Paulo (1.3 million auto vehicles). As of July 1978, 187 new distilleries had been approved adding 4.1 million cu m/year new capacity, within 2-4 years. Sugarcane is the primary feedstock for fermentation alcohol production. However, starch containing materials such as mandioca (cassava, manioc), sweet sorghum and babassu (the fruit of a Brazilian native palm tree) will grow fast in importance as sugarcane land becomes scarcer. The environmental consequences of producing fermentation alcohol can be serious. Stillage (bottom slops) is produced at a rate of 13 cu m/cu m of alcohol and is highly pollutant. There are several stillage processing alternatives, which could turn a problem into an opportunity.

Media Info

  • Pagination: p. 815-845

Subject/Index Terms

Filing Info

  • Accession Number: 00307871
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jun 9 1980 12:00AM