| 학회 | 한국화학공학회 |
| 학술대회 | 2016년 봄 (04/27 ~ 04/29, 부산 BEXCO) |
| 권호 | 22권 1호, p.428 |
| 발표분야 | 생물화공 |
| 제목 | In situ recovery of butyric acid from anaerobic fermentor under high-pressured CO 2 condition |
| 초록 | Butyric acid is an attractive renewable chemical for many industrial applications, and be produced by anaerobic microorganisms. The high-pressured CO 2 reactor system for a liquid-liquid extraction was applied for the recovery of butyric acid produced by Clostridium tyrobutyricum (ATCC 25755). The pH below pKa of butyric acid is recommended for the extraction of the butyric acid to extractant, and CO 2 was expected to decrease the pH of aqueous medium by forming bicarbonate. The high-pressured conditions at 10 ~ 50 bar lead to increase of CO 2 solubility into the fermentation broth. The extractive fermentation was operated in a fed-batch reactor connected with high-pressured CO 2 extractor. Fermentation broth containing butyric acid was filtrated by MF membrane for reutilization of C. tyributyricum. The butyric acid in filtrate was circulated with high-pressure CO 2 extractor and extracted to an extractant, ester solvent, at 50 bar. The pH of filtrate decreased according to increase of CO 2 pressure. The extraction process showed a good performance and could be applied to the other organic acids for bio-production |
| 저자 | 전재성 , 이태호 , 상병인 |
| 소속 | 한양대 |
| 키워드 | 바이오에너지/환경생물공학 |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
