Sequential hydrolysis of hemicellulose and lignin in lignocellulosic biomass by two-stage percolation process using dilute sulfuric acid and ammonium hydroxide
- Authors
- Kim, Tae Hyun
- Issue Date
- Nov-2011
- Publisher
- KOREAN INSTITUTE CHEMICAL ENGINEERS
- Keywords
- Corn Stover; Enzymatic Hydrolysis; Lignin; Xylooligosaccharides; Bioethanol
- Citation
- KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.28, no.11, pp.2156 - 2162
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- KOREAN JOURNAL OF CHEMICAL ENGINEERING
- Volume
- 28
- Number
- 11
- Start Page
- 2156
- End Page
- 2162
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/36496
- DOI
- 10.1007/s11814-011-0093-6
- ISSN
- 0256-1115
- Abstract
- To obtain the total fractionation and pretreatment of the corn stover, two-stage percolation process was investigated. This process consists of two steps: use of 0.07 wt% sulfuric acid for hemicellulose recovery in first stage and ARP (ammonia recycled percolation) in the following stage for lignin recovery. Among tested conditions, the best conditions of two-stage process were as follows: 1(st) stage; 170 degrees C, 2.5 ml/min, 30 minutes using 0.07 wt% sulfuric acid and 2(nd) stage; 170 degrees C, 5.0 ml/min, 60 minutes using 15 wt% ammonium hydroxide. At above two-stage treatment conditions, the hemicellulose in corn stover was easily hydrolyzed (95%) and recovered with high yields (86%) and the extent of the lignin removal was 81%. After two-stage process, the treated biomass contained nearly pure glucan (85%). Two-stage treatment brought about enzymatic digestibility of 90% and 89% with 60 and 15 FPU/g glucan cellulase enzyme loadings, respectively.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/36496)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.