Effect of potassium on the pyrolysis of biomass components: Pyrolysis behaviors, product distribution and kinetic characteristics

doi:10.1016/j.wasman.2020.12.023

GIEC OpenIR

	Effect of potassium on the pyrolysis of biomass components: Pyrolysis behaviors, product distribution and kinetic characteristics
	Fan, Honggang 1,2,3,4,5; Gu, Jing 1,2,3,4; Wang, Yazhuo1,2,3,4,6 ; Yuan, Haoran1,2,3,4 ; Chen, Yong1,2,3,4,6 ; Luo, Bo 7
	2021-02-15
发表期刊	WASTE MANAGEMENT
ISSN	0956-053X
卷号	121 页码:255-264
通讯作者	Yuan, Haoran(yuanhr@ms.giec.ac.cn)
摘要	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.
关键词	Biomass Pyrolysis Potassium Product distribution Kinetic characteristics
DOI	10.1016/j.wasman.2020.12.023
收录类别	SCI
语种	英语
资助项目	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研究方向	Engineering ; Environmental Sciences & Ecology
项目资助者	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类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000615021300026
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/32651
专题	中国科学院广州能源研究所
通讯作者	Yuan, Haoran
作者单位	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
第一作者单位	中国科学院广州能源研究所
推荐引用方式 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.