Development of a fluidized packed-bed reactor for production of ethanol using flocculent yeast strains

• Grant number: 98/02708-9
• Support Opportunities: Regular Research Grants
• Start date: July 01, 1998
• End date: June 30, 1999
• Field of knowledge: Agronomical Sciences - Food Science and Technology
• Principal Investigator: Silvio Roberto Andrietta
• Grantee: Silvio Roberto Andrietta
• Host Institution: Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas (CPQBA). Universidade Estadual de Campinas (UNICAMP). Paulínia , SP, Brazil

Abstract

Selection will be made from among 17 isolated flocculent strains from the industrial unit of the Diana distillery during the 96/97 harvest, of one or more that display the characteristics of high speed growth, high alcohol yield, high speed of substrate consumption and raised flocculation capacity. Based on this selection the strain will be tested in a tower type fermentor where it is hoped to operate it with a fluidized bed. Studies will be undertaken in this reactor relating to the diameter/height of the bed, recycle flow rate, concentration of substrate in the feed and feed flow rate. It will be used to define trials to be carried out or experimental factorial planning (response surface method). (AU)