发明名称 |
Method of continuously producing ethanol from sugar-containing substrates |
摘要 |
In a method of continuously producing ethanol from sugar-containing substrates by fermentation of sugars by means of a flocculating strain of Zymomonas mobilis under anaerobic conditions and at a pH of from 4.5 to 7 a substrate is led commonly with Zymomonas mobilis cells through at least three fermentation stages without preceding sterilization, a concentration of at least 4% by volume of ethanol is maintained in each fermentation stage, a residence time of the fermentation medium in the entire system of maximally 31/3 h corresponding to a dilution rate of the fermentation medium in the entire system of at least 0.3 h-1 is adjusted, the Zymomonas mobilis cells are separated by sedimentation after the final fermentation stage, the Zymomonas mobilis cells are recycled into the first fermentation stage, and the ethanol-containing substrate separated from the Zymomonas mobilis cells is drawn off.
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申请公布号 |
US4876196(A) |
申请公布日期 |
1989.10.24 |
申请号 |
US19880149955 |
申请日期 |
1988.01.27 |
申请人 |
VOGELBUSCH GESELLSCHAFT M.B.H. |
发明人 |
SALZBRUNN, WOLFGANG;STEINER, EVA;WOEHRER, WILFRIED;MEIXNER, OTTO |
分类号 |
C12P7/06 |
主分类号 |
C12P7/06 |
代理机构 |
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代理人 |
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地址 |
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