title: Simulated moving bed separation of agarose-hydrolyzate components for biofuel production from marine biomass.
abstract: The economically-efficient separation of galactose, levulinic acid (LA), and 5-hydroxymethylfurfural (5-HMF) in acid hydrolyzate of agarose has been a key issue in the area of biofuel production from marine biomass. To address this issue, an optimal simulated moving bed (SMB) process for continuous separation of the three agarose-hydrolyzate components with high purities, high yields, and high throughput was developed in this study. As a first step for this task, the adsorption isotherm and mass-transfer parameters of each component on the qualified adsorbent were determined through a series of multiple frontal experiments. The determined parameters were then used in optimizing the SMB process for the considered separation. Finally, the optimized SMB process was tested experimentally using a self-assembled SMB unit with four zones. The SMB experimental results and the relevant computer simulations verified that the developed process in this study was quite successful in the economically-efficient separation of galactose, LA, and 5-HMF in a continuous mode with high purities and high yields. It is thus expected that the developed SMB process in this study will be able to serve as one of the trustworthy ways of improving the economic feasibility of biofuel production from marine biomass.
authors.affiliation: Department of Chemical Engineering, Hanyang University, Haengdang-dong, Seongdong-gu, Seoul 133-791, South Korea.
authors.forename: Pung-Ho
authors.initials: PH
authors.lastname: Kim
authors.affiliation: Department of Chemical Engineering, Hanyang University, Haengdang-dong, Seongdong-gu, Seoul 133-791, South Korea.
authors.forename: Hee-Geun
authors.initials: HG
authors.lastname: Nam
authors.affiliation: Department of Chemical Engineering, Hanyang University, Haengdang-dong, Seongdong-gu, Seoul 133-791, South Korea.
authors.forename: Chanhun
authors.initials: C
authors.lastname: Park
authors.affiliation: School of Chemical Engineering, 480 Stadium Mall Drive, Purdue University, West Lafayette, IN 47907-2100, USA.
authors.forename: Nien-Hwa Linda
authors.initials: NH
authors.lastname: Wang
authors.affiliation: Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-343, South Korea.
authors.forename: Yong Keun
authors.initials: YK
authors.lastname: Chang
authors.affiliation: Department of Chemical Engineering, Hanyang University, Haengdang-dong, Seongdong-gu, Seoul 133-791, South Korea. Electronic address: munsy@hanyang.ac.kr.
authors.forename: Sungyong
authors.initials: S
authors.lastname: Mun
mesh_terms: D000327:Adsorption; D056804:Biofuels; D018533:Biomass; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation* / Q000379:methods*; D012685:Sepharose
chemical_list: D056804:Biofuels; D012685:Sepharose
keywords: Biofuel production; Continuous separation; Marine biomass; Process optimization; Simulated moving bed