Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Effect of potassium on the pyrolysis of biomass components: Pyrolysis behaviors, product distribution and kinetic characteristics | |
Fan, Honggang1,2,3,4,5; Gu, Jing1,2,3,4; Wang, Yazhuo1,2,3,4,6 ; Yuan, Haoran1,2,3,4; Chen, Yong1,2,3,4,6; Luo, Bo7
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| 2021-02-15 | |
| Source Publication | WASTE MANAGEMENT
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| ISSN | 0956-053X |
| Volume | 121Pages:255-264 |
| Corresponding Author | Yuan, Haoran(yuanhr@ms.giec.ac.cn) |
| Abstract | Potassium is an inorganic mineral element in biomass and has a significant catalytic effect on biomass pyrolysis. In this work, the effect of potassium on the pyrolysis of biomass components (cellulose, xylan and lignin) was investigated with the help of thermogravimetric analyzer coupled to fourier transform infrared spectrometer (TG-FTIR) and pyrolysis-gas chromatography coupled to mass spectrometry (PyGC/MS). The results showed that potassium accelerated the start of the main pyrolysis stage of the biomass components, reduced the weight loss rate for cellulose and lignin, and increased the weight loss rate for xylan. On the other hand, potassium presented a promotion effect on the formation of char for cellulose but a suppression effect for lignin. In addition, an increasing potassium content promoted the release of volatile products for xylan. Product distribution analysis found that potassium promoted the scission of glycosidic bonds and the decomposition of glucose units, resulting in a sharp yield decrease of carbohydrates and a yield increase of furans, aldehydes and ketones. In addition, an increased production of CO2 was obtained, indicating that potassium favors the cleavage and reforming of carboxyl (=COOH) and carbonyl (C=O) groups. Furthermore, the effect of potassium on the pyrolysis of cellulose and xylan was stronger than that on lignin pyrolysis. The effect on the pyrolysis reaction also resulted in a higher activation energy for the decomposition of biomass components, especially at high temperature intervals. Moreover, the higher the content of potassium added, the greater the increase was in the activation energy. (c) 2020 Elsevier Ltd. All rights reserved. |
| Keyword | Biomass Pyrolysis Potassium Product distribution Kinetic characteristics |
| DOI | 10.1016/j.wasman.2020.12.023 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R&D Program of China[2018YFC1901200] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0101] ; National Natural Science Foundation of China[51976223] ; Science and Technology Planning Project of Guangzhou[201904010351] ; Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences[ISEE2018YB04] |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| Funding Organization | National Key R&D Program of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; National Natural Science Foundation of China ; Science and Technology Planning Project of Guangzhou ; Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences |
| WOS Subject | Engineering, Environmental ; Environmental Sciences |
| WOS ID | WOS:000615021300026 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/32651 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Yuan, Haoran |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab, Guangzhou 511458, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Nanjing Tech Univ, Nanjing 211816, Peoples R China 7.Chongqing Environm & Sanitat Grp CO LTD, Chongqing 401121, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Fan, Honggang,Gu, Jing,Wang, Yazhuo,et al. Effect of potassium on the pyrolysis of biomass components: Pyrolysis behaviors, product distribution and kinetic characteristics[J]. WASTE MANAGEMENT,2021,121:255-264. |
| APA | Fan, Honggang,Gu, Jing,Wang, Yazhuo,Yuan, Haoran,Chen, Yong,&Luo, Bo.(2021).Effect of potassium on the pyrolysis of biomass components: Pyrolysis behaviors, product distribution and kinetic characteristics.WASTE MANAGEMENT,121,255-264. |
| MLA | Fan, Honggang,et al."Effect of potassium on the pyrolysis of biomass components: Pyrolysis behaviors, product distribution and kinetic characteristics".WASTE MANAGEMENT 121(2021):255-264. |
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