서지주요정보
재순환 가스 분사계를 이용한 연료용 에탄올 생산 = Fuel ethanol production using recycled gas purge system
서명 / 저자 재순환 가스 분사계를 이용한 연료용 에탄올 생산 = Fuel ethanol production using recycled gas purge system / 임관열.
저자명 임관열 ; Lim, Gwan-Yeul
발행사항 [서울 : 한국과학기술원, 1984].
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소장정보

등록번호

4102762

소장위치/청구기호

학술문화관(문화관) 보존서고

MCPE 8416

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Recycled gas purge system was developed to alleviate the ethanol inhibition in ethanol fermentation and to increase ethanol productivity. This system has many advantages such as the alleviation of ethanol inhibition, removal of $CO_2$, preservation of cell viability etc. In this study, $\underline{Saccharomyces cerevisiae (ATCC24858)}$ immobilized in Ca-alginate gel was used. The kinetic paterns of the fermentation of glucose to ethanol by Saccharomyces cerevisiae was a growth-associated fashion that the products are synthesized during the cell growth. In batch fermentation performed in the absence of recycled gas purge system, using 250g/l glucose medium, glucose was not utilized completely and the production of ethanol was stopped owing to ethanol inhibition. This phenomenon was more serious in immobilized cell than in free cell. The product yield in immobilized cell was higher nearly 3% than in free cell. In batch fermentation, as baed volume fraction was increased, the rate of glucose uptake and ethanol production increased, but the final concentration of ethanol decreased. In recycled gas purge system, glucose was utilized completely but the concentration of ethanol in the fermentor was maintained below 90g/l. Thus, ethanol inhibition was alleviated. In continuous fermentation using recycled gas purge system and immobilized cell, the optimum temperature was 33-35℃. When recycled gas purging rate was increased from O vvm(L/min) to 35 vvm(L/min), the ethanol productivity increased by 1.4 times. As dilution rate was increased, the concentration of glucose and the ethanol productivity increased, but the concentration of ethanol in fermentor decreased. So, when bead volume fraction was 1/5, the ethanol productivity of 24 g/l/hr was obtained at dilution rate of 0.35hr-1. When the bead volume fraction was 1/2, the ethanol productivity of 59g/l/hr was obtained at dilution rate of $3.6hr^{-1}$.

서지기타정보

서지기타정보
청구기호 {MCPE 8416
형태사항 viii, 68 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Gwan-Yeul Lim
지도교수의 한글표기 : 장호남
지도교수의 영문표기 : Ho-Nam Chang
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 63-66
주제 Fermentation.
Immobilized cells.
발효. --과학기술용어시소러스
고정화 세포. --과학기술용어시소러스
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