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Maximizing Anhydrosugar Production from Fast Pyrolysis of Eucalyptus Using Sulfuric Acid as an Ash Catalyst Inhibitor

文献类型：期刊论文

作者Zhang, Dongyan1,2,3,4; Fan, Yuyang2,3,4,5; Zheng, Anqing2,3,4; Zhao, Zengli2,3,4; Wang, Fengyun1; Li, Haibin2,3,4
刊名CATALYSTS
出版日期2018-12-01
卷号8期号:12页码:11
关键词eucalyptus fast pyrolysis acid impregnation H2SO4 inhibitor anhydrosugar
ISSN号2073-4344
DOI10.3390/catal8120609
通讯作者Zheng, Anqing(zhengaq@ms.giec.ac.cn) ; Wang, Fengyun(wangfy@njust.edu.cn)
英文摘要Anhydrosugars, such as levoglucosan (LG), are high value-added chemicals which are mainly derived from fast pyrolysis of pure cellulose. However, fast pyrolysis of raw lignocellulosic biomass usually produces a very low amount of levoglucosan, since alkali and alkaline earth metals (AAEM) present in the ash can serve as the catalysts to inhibit the formation of levoglucosan through accelerating the pyranose ring-opening reactions. In this study, eucalyptus was impregnated with H2SO4 solutions with varying concentrations (0.25-1.25%). The characteristics of ash derived from raw and H2SO4-impregnated eucalyptus were characterized by X-ray fluorescence spectroscopy (XRF) and X-ray diffraction (XRD). The pyrolysis behaviors of raw and H2SO4-impregnated eucalyptus were performed on the thermogravimetric analysis (TGA) and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). TG analysis demonstrated that the H2SO4-impregnated eucalyptus produced less char than raw eucalyptus. Py-GC/MS analysis showed that even small amounts of H2SO4 can obviously improve the production of anhydrosugars and phenols and suppressed the formation of carboxylic acids, aldehydes, and ketones from fast pyrolysis of eucalyptus. The rank order of levoglucosan yield from raw and impregnated eucalyptus was raw <1.25% H2SO4 <1% H2SO4 <0.75% H2SO4 <0.25% H2SO4 <0.5% H2SO4. The maximum yield of levoglucosan (21.3%) was obtained by fast pyrolysis of eucalyptus impregnated with 0.5% H2SO4, which was close to its theoretical yield based on the cellulose content. The results could be ascribed to that H2SO4 can react with AAEM (e.g., Na, K, Ca, and Mg) and lignin to form lignosulfonate, thus acting as an inhibitor to suppress the catalytic effects of AAEM during fast pyrolysis of eucalyptus.
WOS关键词PY-GC/MS ; LIGNOCELLULOSIC BIOMASS ; SOLAR PYROLYSIS ; BEHAVIOR ; BAGASSE ; TORREFACTION ; TEMPERATURE ; POTASSIUM ; MECHANISM
资助项目Major International (Regional) Joint Research Project of the National Natural Science Foundation of China[51661145011] ; National Natural Science Foundation of China[51776209] ; Science and Technology Planning Project of Guangdong Province[2015A020215024] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2018383] ; Pearl River S&T Nova Program of Guangzhou City[201806010061]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000454711500041
出版者MDPI
资助机构Major International (Regional) Joint Research Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Planning Project of Guangdong Province ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Pearl River S&T Nova Program of Guangzhou City
源URL[http://ir.giec.ac.cn/handle/344007/24575]  
专题中国科学院广州能源研究所
通讯作者Zheng, Anqing; Wang, Fengyun
作者单位1.Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
3.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
4.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
5.Shenyang Aerosp Univ, Clean Energy Key Lab Liaoning, Shenyang 110136, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Dongyan,Fan, Yuyang,Zheng, Anqing,et al. Maximizing Anhydrosugar Production from Fast Pyrolysis of Eucalyptus Using Sulfuric Acid as an Ash Catalyst Inhibitor[J]. CATALYSTS,2018,8(12):11.
APA Zhang, Dongyan,Fan, Yuyang,Zheng, Anqing,Zhao, Zengli,Wang, Fengyun,&Li, Haibin.(2018).Maximizing Anhydrosugar Production from Fast Pyrolysis of Eucalyptus Using Sulfuric Acid as an Ash Catalyst Inhibitor.CATALYSTS,8(12),11.
MLA Zhang, Dongyan,et al."Maximizing Anhydrosugar Production from Fast Pyrolysis of Eucalyptus Using Sulfuric Acid as an Ash Catalyst Inhibitor".CATALYSTS 8.12(2018):11.

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来源：广州能源研究所

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