Bioethanol researches can solve the problem of fossil fuels such as environment pollution and the limitation of fossil fuels. Nowadays, lignocellulosic biomass is regarded as an alternative energy source to fossil fuels. Corn stover, rice straw, switch grass and Miscanthus have been evaluated extensively as renewable biomass substrate for making ethanol. Especially, Miscanthus is considered as one of the best feedstocks for the bioethanol production because of the high carbohydrate content and the high annual biomass yield. In this study, Miscanthus was selected as the lignocellulosic feedstock for the bioethanol production and pretreated by the extrusion process using twin screw which is suitable for applying the continuous and large scale process. A central composite design of response surface method was used to optimize the condition of pretreatment, in respect to treatment temperature, sodium hydroxide concentration, twin screw speed and flow rate. The optimal conditions were found to be 78.53℃, 0.81 M, 112.67 rpm and 97.44 mL/min for temperature, NaOH concentration, twin screw speed and flow rate, respectively. Finally, 83.39% of theoretical total glucose conversion rate (TGCR) yielded after pretreatment using extrusion facility. This result constitutes a significant contribution to the continuous process of bioethanol production from lignocellulosic biomass.
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