Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis
文献类型：期刊论文
| 作者 | Jiang, Liqun1,2; Wu, Nannan1; Zheng, Anqing2 ; Liu, Anqi1; Zhao, Zengli2; Zhang, Fan3; He, Fang1; Li, Haibin1
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| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
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| 出版日期 | 2017-06-01 |
| 卷号 | 5期号:6页码:5208-5213 |
| 关键词 | Hemicellulose Cellulose Acid Hydrolysis Fast Pyrolysis Levoglucosan |
| DOI | 10.1021/acssuschemeng.7b00561 |
| 文献子类 | Article |
| 英文摘要 | Conversion 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. |
| WOS关键词 | LEVOGLUCOSAN FORMATION ; ESCHERICHIA-COLI ; LIPID PRODUCTION ; BIOMASS ; PRETREATMENT ; MECHANISMS ; YIELDS ; WOOD ; POTASSIUM ; ETHANOL |
| 语种 | 英语 |
| WOS记录号 | WOS:000402950000082 |
| 资助机构 | National Natural and Science Foundation of China(51606204 ; Science and Technology Planning Project of Guangzhou City(201707010236) ; Guangdong Key Laboratory of New and Renewable Energy Research and Development(Y609jf1001) ; Natural and Science Foundation of Guangdong Province(2014A030310322) ; 51376186) |
| 源URL | [http://ir.giec.ac.cn/handle/344007/14138]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Key Lab New & Renewable Energy Res & De, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Biomass Grp, Key Lab Trop Plant Resources & Sustainable Use, 88 Xuefulu, Kunming 650223, Yunnan, Peoples R China |
| 推荐引用方式 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.,Liu, Anqi.,Zhao, Zengli.,...&Li, Haibin.(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. |
入库方式： OAI收割
来源：广州能源研究所
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