Comparison of Amberchrom-CG161C and Dowex99 as the adsorbent of a four-zone simulated moving bed process for removal of acetic acid from biomass hydrolyzate
- Authors
- Nam, Hee-Geun; Jo, Se-Hee; Mun, Sungyong
- Issue Date
- Oct-2011
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Biomass hydrolyzate; Sugar recovery; Dowex99; Amberchrom-CG161C; Simulated moving bed; Standing wave design
- Citation
- PROCESS BIOCHEMISTRY, v.46, no.10, pp.2044 - 2053
- Indexed
- SCIE
SCOPUS
- Journal Title
- PROCESS BIOCHEMISTRY
- Volume
- 46
- Number
- 10
- Start Page
- 2044
- End Page
- 2053
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/167487
- DOI
- 10.1016/j.procbio.2011.08.004
- ISSN
- 1359-5113
- Abstract
- One of the important steps in the application of biomass to producing sugars, which can be converted into bio-ethanol and other valuable chemicals by fermentation, is to hydrolyze the biomass components by sulfuric acid. It was reported that such a hydrolysis entailed the generation of acetic acid, which has been recognized as a key impurity to be surely removed from the biomass hydrolyzate for ensuring high fermentability of the hydrolyzed sugars. Regarding such a removal task, there has been a previous application of a simulated moving bed (SMB) process based on the Dowex99 adsorbent, whose performance, however, was limited by low selectivity between acetic acid and sugars. To overcome such a limitation, another adsorbent alternative to Dowex99 was searched in this study. It was found that Amberchrom-CG161C allowed higher selectivity between acetic acid and sugars than Dowex99. To investigate the relative superiority of Amberchrom-CG161C over Dowex99 as the adsorbent of an SMB process for removing acetic acid from the biomass hydrolyzate, the two SMB processes based on Amberchrom-CG161C and Dowex99 were optimized using the SMB optimization tool based on standing wave design (SWD) method. The optimization results revealed that the Amberchrom-CG161C SMB outperformed the Dowex99 SMB by a wide margin.
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