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격막추출법에 의한 Butanol 발효제품의 동시회수에 대한 수치모사연구
Mathematical Modeling and Simulation of the Membrane-Extractive Butanol Fermentation
HWAHAK KONGHAK, August 1989, 27(4), 451-458(8), NONE
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Abstract
Butanol 발효에서 Product inhibition으로 인한 문제점들을 해결하기 위한 방법의 하나로 개발된 격막추출법에 의한 발효제품 동시회수 공정에 대하여 수학적 모델을 설정하고 모사연구를 수행하였다. 그 결과 가능한 한 고농도의 feed당을 사용하는 것이 생산성 향상에 가장 크게 기여할 수 있는 방법인 것으로 나타났다. 이외에 격막면적이나 추출용매 공급속도를 증가시키는 방법은 생산성 향상효과가 미약하므로 기준용량 이상의 증가는 불필요한 것으로 보인다. 한편 용매의 분배계수는 oleyl alcohol 정도이면 충분한 것으로 나타났다.
A mathematical model of the membrane-extractive butanol fermentation process, which has been de-veloped as a method of in situ product recovery to solve the problems of butanol fermentation caused by the severe product inhibition, was proposed and the model was solved by a computer-assisted numerical method. The results in-dicate that the best way of improbing the butanol productivity is to use a feed with high glucose concentration. On the other hand, only marginal advantages are obtained by increasing the membrane area and/or the extractant flow rate beyond certain limits. It is also shown that a solvent with distribution coefficients as high as those of oleyl alcohol is ac-ceptable for this process.