Young-Lok CHA, Bon-Cheol KOO, Youn-Ho MOON, Yong-Hwan CHOI, Seung-Hyun AHN, Surn-Teh BARK, Jung Kon KIM, Gi Hong AN, Sae-Jung SUH
언어
영어(ENG)
URL
https://www.earticle.net/Article/A144888
※ 원문제공기관과의 협약기간이 종료되어 열람이 제한될 수 있습니다.
원문정보
초록
영어
The world demand of renewable bioenergy as an alternative transportation fuel is greatly increasing. Research for bioethanol production is currently being progressed intensively throughout the world. Rice straw is one of big candidate for bioethanol. 5.6 million ton/year of rice straw is produced in Korea. If we use 3 million tons of rice straw for bioethanol production, it can replace more than 5% of the gasoline as transport fuels.In this study, the effective pretreatment technology for lignocellulosic biomass is presented. We newly developed temperature and pressure-controlled expansion reaction system and CO2-mixed physicochemical pretreatment method. This system consists of a reactor with high temperature and pressure in upper side, and a separator with low temperature and pressure in bottom. To hydrolyze biomass, 3MPa of CO2 was loaded into the reactor. After reaction, the sample was spouted into the separator with 6MPa N2 pressure. Rice straw material, milled into 0.3mm and drying at 50℃ for one day was used for pretreatment. At that time, the water content of the sample was under 5%. Compositional analysis of rice straw was performed by NREL protocol, and it consisted of 36% cellulose, 21% hemicellulose, 20% lignin, and 12% ash. The sample was pretreated with 15% ammonia solution at 150℃ for 20, 40 and 60 minutes using our new developed pretreatment system. Especially ammonia and CO2 mixed solution were used for the pretreatment of rice straw. As a result of the pretreatment, the sample was changed to 46% cellulose and 22% hemicellulose with 70% solid remaining. In conclusion, the recovery of cellulose and hemicellulose from this new system increased by 8% and 22%, respectively, compared with one of control.
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동
간행물
간행물명
한국생물공학회 학술대회
간기
반년간
수록기간
1985~2013
십진분류
KDC 476DDC 576
이 권호 내 다른 논문 / 한국생물공학회 학술대회 2011년도 한국생물공학회 춘계학술발표대회