Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Quantitative comparison of different chemical pretreatment methods on chemical structure and pyrolysis characteristics of corncobs | |
Zheng, Anqing1,2,3 ; Zhao, Kun1,2,3,4; Li, Luwei5; Zhao, Zengli1,2,3; Jiang, Liqun1,2,3; Huang, Zhen1,2,3; Wei, Guoqiang1,2,3; He, Fang1,2,3; Li, Haibin1,2,3
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| 2018-10-01 | |
| Source Publication | JOURNAL OF THE ENERGY INSTITUTE
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| ISSN | 1743-9671 |
| Volume | 91Issue:5Pages:676-682 |
| Corresponding Author | Zhao, Zengli(zhaozl@ms.giec.ac.cn) |
| Abstract | In order to identify the effects of different chemical pretreatment methods on structure changes of corncobs and their subsequent pyrolysis characteristics, the chemical pretreatment of corncobs was performed using different concentrations of sodium hydroxide (NaOH), sulfuric acid (H2SO4), and hydrogen peroxide (H2O2) solutions. The structure changes of corncobs were characterized by elemental analysis, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD). The pyrolysis characteristics of raw and pretreated corncobs were conducted on thermogravimetric analyzer (TGA) and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). TG/DTG analysis of raw and pretreated corncobs demonstrated that the rank order for the ease of pyrolysis was untreated < 1% NaOH < 1% H2O2 < 2% NaOH < 2% H2SO4 < 1% H2SO4. Py-GC/MS analysis showed that chemical pretreatment can effectively promote the production of furans and levoglucosan (LG) and inhibit the formation of acetic acid, ketones and phenols. The rank order of LG yields from untreated and pretreated corncobs was untreated < 1% NaOH < 2% NaOH < 1% H2O2 < 1% H2SO4 < 2% H2SO4. The maximum yield of LG (15.01%) was obtained by fast pyrolysis of corncobs pretreated using 2% H2SO4. It was 18.53 times the yield of LG from untreated corncobs. The results could be mainly attributed to the passivation of alkali metal and alkali earth metal and the removal of hemicellulose and lignin fractions during pretreatment. (C) 2017 Energy Institute. Published by Elsevier Ltd. All rights reserved. |
| Keyword | Pretreatment Pyrolysis Corncobs Structure Levoglucosan |
| DOI | 10.1016/j.joei.2017.06.002 |
| WOS Keyword | BIO-OIL ; HYDROTHERMAL PRETREATMENT ; BIOMASS ; WOOD ; CELLULOSE ; DECOMPOSITION ; TORREFACTION ; HYDROLYSIS ; CHEMISTRY ; BIOFUELS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[21406227] ; National Natural Science Foundation of China[51376186] ; Natural Science Foundation of Guangdong Province, China[2014A030313672] ; Science and Technology Planning Project of Guangdong Province, China[2014B020216004] ; Science and Technology Planning Project of Guangdong Province, China[2015A020215024] |
| WOS Research Area | Energy & Fuels |
| Funding Organization | National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province, China ; Science and Technology Planning Project of Guangdong Province, China |
| WOS Subject | Energy & Fuels |
| WOS ID | WOS:000445984100005 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/24062 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Zhao, Zengli |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Zheng, Anqing,Zhao, Kun,Li, Luwei,et al. Quantitative comparison of different chemical pretreatment methods on chemical structure and pyrolysis characteristics of corncobs[J]. JOURNAL OF THE ENERGY INSTITUTE,2018,91(5):676-682. |
| APA | Zheng, Anqing.,Zhao, Kun.,Li, Luwei.,Zhao, Zengli.,Jiang, Liqun.,...&Li, Haibin.(2018).Quantitative comparison of different chemical pretreatment methods on chemical structure and pyrolysis characteristics of corncobs.JOURNAL OF THE ENERGY INSTITUTE,91(5),676-682. |
| MLA | Zheng, Anqing,et al."Quantitative comparison of different chemical pretreatment methods on chemical structure and pyrolysis characteristics of corncobs".JOURNAL OF THE ENERGY INSTITUTE 91.5(2018):676-682. |
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