Continuous ethanol production in the gas-lift tower fermenter |
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| Authors: | D. Martin Comberbach John D. Bu'Lock |
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| Affiliation: | (1) Centre for Energy Studies, Technical University of Nova Scotia, P. O. Box 1000, B3J 2X4 Halifax, Nova Scotia, Canada;(2) Weizmann Microbial Chemistry Laboratory, The University of Manchester, M13 9PL Manchester, England |
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| Abstract: | Summary A highly flocculent strain of Saccharomyces uvarum was used to convert glucose to ethanol and CO2 in a single stage, continuous, gas-lift tower fermenter. Satisfactory operation was maintained in prolonged runs with yeast concentrations in excess of 100 g/L (d.w.) and hydraulic retention times less than 0.4 h. Maximum ethanol concentration and productivity were 88 g/L and 44.5 g/Lh respectively. Conversion efficiency was between 80 and 95% of theoretical. |
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