| 학회 | 한국화학공학회 |
| 학술대회 | 2017년 가을 (10/25 ~ 10/27, 대전컨벤션센터) |
| 권호 | 23권 2호, p.1767 |
| 발표분야 | 에너지 환경 |
| 제목 | Optimum utilization of biochemical components in Chlorella sp. KR1 via subcritical hydrothermal liquefaction |
| 초록 | Product distributions in bio-crude, aqueous phase, and solid residue were rigorously analyzed during the hydrothermal liquefaction (HTL) of Chlorella sp. KR1 in order to optimize utilization of energy and chemicals. A non-asphaltene (paraffinic) in the bio-crude was mainly produced due to lipid extraction. Above 170 °C, lipid extraction was almost complete, and hence, the non-asphaltene content did not increase further with increasing temperature. Carbohydrates could be extracted, mainly as polysaccharides, in the aqueous phase below 200 °C. Above 200 °C, they decompose and react with proteins via the Maillard reaction to form asphaltene (polycyclic aromatics), which contains large amounts of heteroatoms such as N and S. Although high temperature carbohydrate conversion could yield more bio-crude with high energy values, it dominantly contributed to formation of the asphaltene. As high temperature HTL requires a large energy input, the recovery and utilization of intact carbohydrates and proteins at below 200 °C appears to be more promising. Energy Return on Investment analysis also showed that 170 °C is the optimum HTL temperature for maximizing the energy production. |
| 저자 | 진민규 , 최민기 |
| 소속 | 한국과학기술원 |
| 키워드 | 에너지전환 ; 고효율 |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
