XTBG OpenIR  > 生物能源研究组
Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis
Jiang, Liqun; Wu, Nannan; Zheng, Anqing; et al
2017
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume5Issue:6Pages:5208-5213
AbstractConversion of lignocellulose to sugars suitable for microbial fermentation is an outstanding obstacle in developing biorefinery. Both hemicellulose and cellulose fractions are polymers of sugars and thereby primary candidates for fermentable sugars production. In this study, the flexibility of an integrated biomass conversion process was offered. The hemicellulose of corncobs was utilized to release fermentable sugars by sulfuric acid hydrolysis first. The remaining solid residue from acid hydrolysis, containing a lot of cellulose, was further used to produce levoglucosan by fast pyrolysis. This process appeared to present several advantages: (i) Almost all of hemicellulose (99.7%) was hydrolyzed, and the yield of xylan was achieved 86.1%. (ii) The alkali and alkaline earth metals, which had negative catalytic influence on levoglucosan formation, were nearly and completely (93.7%) removed by acid pretreatment. (iii) A preferential degradation of hemicellulose and amorphous cellulose during acid hydrolysis resulted in accumulation of crystalline cellulose of acid-pretreated biomass, which was favorable for levoglucosan production. (iv) The yield of levoglucosan increased by 450.0% for acid-pretreated corncobs (37.4%) compared with that of raw material (6.8%). The effectiveness to enhance levoglucosan yields ranged as high as 63.4%. Further increase in sulfuric acid concentration (0-10%) and temperature (30-120 degrees C) in acid pretreatment prior to fast pyrolysis could enhance levoglucosan formation. Consequently, this strategy, which utilized simple chemical regents to overcome biomass recalcitrance and liberate fermentable sugars while also remaining cost-effective, has the potential to underlie a biorefinery.
KeywordHemicellulose Cellulose Acid Hydrolysis Fast Pyrolysis Levoglucosan
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10502
Collection生物能源研究组
Recommended Citation
GB/T 7714
Jiang, Liqun,Wu, Nannan,Zheng, Anqing,et al. Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(6):5208-5213.
APA Jiang, Liqun,Wu, Nannan,Zheng, Anqing,&et al.(2017).Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(6),5208-5213.
MLA Jiang, Liqun,et al."Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.6(2017):5208-5213.
Files in This Item:
File Name/Size DocType Version Access License
Comprehensive Utiliz(702KB) 开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jiang, Liqun]'s Articles
[Wu, Nannan]'s Articles
[Zheng, Anqing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jiang, Liqun]'s Articles
[Wu, Nannan]'s Articles
[Zheng, Anqing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jiang, Liqun]'s Articles
[Wu, Nannan]'s Articles
[Zheng, Anqing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.