Bio-ethanol, which is one of the most studied renewable alternatives, can be obtained from the fermentation of sugar, starch, cellulose-based materials. Fermented beer from those raw materials contains 8~11 v/v % of ethanol and the beer is sent to distillation process so that 95~97 v/v % of hydrous ethanol can be produced. Although the ethanol from the distillation process is used for alcoholic beverage or industrial usage, its water content should be removed by an additional dehydration process such as azeotropic distillation or pressure swing adsorption process for using ethanol as blended fuel. In this study, an investigation was carried out on ethanol-water separation employing a PSA process with 3A zeolite as the adsorbent. The cycle of the PSA process was operated under the following variables: feed flow (80~100 L/h of 95 v/v% ethanol), adsorption temperature (110~140 ℃) and adsorption pressure (1.2 atm). PSA process including two molecular sieve dehydration columns filled with zeolites was installed at pilot plant scale for this study. The product purity through the dehydration columns reached minimum 99.5 v/v% and this PSA process could produce more than 1.0 kL of anhydrous ethanol on a daily basis.
저자
Gi-Wook Choi [ CHANGHAE Institute of Cassava and Ethanol Research CHANGHAE ETHANOL CO., LTD. ]
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