2段抽出ブタノール抽出発酵プロセスの最適運転条件

概要

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A 2-stage-extraction butanol extractive fermentation process was developed and studied using a bench-scale extractive fermentation plant with a butanol production capacity of approximately 10 g. h^<-1>. The continuous fermentation performance confirmed that the production rate equation per unit volume of immobilized cells was applicable to a scaled-up plant. The production rate equation for extractive fermentation was simply expressed by a previously reported equation multiplied by an equation for the extraction raffinate recycling effect. A butanol production-cost calculation program for the 2-stage-extraction process determined the optimum operational conditions to be when butanol concentration, residual sugar concentration and recycling ratio were 6 kg. m^<-3>, 15 kg. m^<-3> and 3 (-), respectively. These optimal conditions were achieved in the bench-scale plant when it was operated with total sugar concentration, dilution rate and recycling ratio of 113 kg. m^<-3>, 0.158 h^<-1> and 3 (-), respectively.
社団法人日本生物工学会の論文
1993-11-25