Hybrid lime addition/capacitive deionization process is a simple, efficient method for isolating sugars from the mixture of glucose, xylose, acetic acid, and sulfuric acid, which are the typical products from the biomass hydrolysis. In this study, we optimized the important process parameters of hybrid process to isolate sugars. In the lime addition process, the optimal lime type, lime/sulfuric acid molar ratio, agitation speed, and reaction time for removal of sulfuric acid were CaCO3, 1:1, 500 rpm, and 8 min, respectively. For the CDI process, the optimal voltage was 1.2 V, the flow rate was 20 mL/min and the efficiency of the acid removal rate increased as the initial acetic acid concentration decreased. The developed hybrid process was able to remove 98.08% of sulfuric acid and 76.97% of acetic acid from the mixture of glucose, xylose, acetic acid, and sulfuric acid. It was able to recover most of the sugar (>99%) at high purity (97.53%).
키워드
Capacitive deionizationLime additionRemove of acid
저자
Sung-Jae KIM [ Department of Chemical Engineering, Kongju National University, Cheonan, Chungnam 330-717, Korea. ]
Jae-Hwan CHOI [ Department of Chemical Engineering, Kongju National University, Cheonan, Chungnam 330-717, Korea. ]
Jin-Hyun KIM [ Department of Chemical Engineering, Kongju National University, Cheonan, Chungnam 330-717, Korea. ]
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