A comprehensive model of biomass char-CO2 gasification reactivity with inorganic element catalysis in the kinetic control zone based on TGA analysis

doi:10.1016/j.cej.2020.125624

	A comprehensive model of biomass char-CO2 gasification reactivity with inorganic element catalysis in the kinetic control zone based on TGA analysis
	Song, Qianshi 1,2; Wang, Xiaohan 1; Gu, Chunhan 1; Wang, Ning 1,2; Li, Haowen 1,2; Su, Hang 1,2; Huo, Jiepeng 1,2; Qiao, Yu 3
刊名	CHEMICAL ENGINEERING JOURNAL
	2020-10-15
卷号	398 页码:10
关键词	Biomass char Reactivity Modelling Inorganic elements CO2 gasification
ISSN号	1385-8947
DOI	10.1016/j.cej.2020.125624
通讯作者	Wang, Xiaohan(wangxh@ms.giec.ac.cn)
英文摘要	A model was established to describe the effects of inorganic matter on the char-CO2 gasification reactivity. The effects of seven inorganic elements on the char-CO2 reactivity were considered: K, Na, Ca, Mg and Fe, which play a catalytic role, and Si and Al, which play an inhibitory role. A catalytic/inhibitory index factor model and a saturated catalytic K ratio model were established and then integrated into a char-CO2 reactivity model. In the modelling process, active site adsorption theory was also considered to calculate the surface area of catalytic elements. The char-CO2 reactivity was calculated by combining the catalytic/inhibitory sub-models of inorganic elements and the non-catalytic char-CO2 reactivity model. In the experimental part, inorganic elements were loaded on de-ashed tobacco stem char, and the char-CO2 reactivity was then tested. The catalytic/inhibitory index factors of seven inorganic elements were quantitatively expressed, and the standardized results showed that the catalytic index factors of K, Na, Ca, Mg and Fe were 1.000, 0.510, 0.580, 0.053 and 0.387, respectively. The inhibitory index factors of Si and Al were 0.695 and 0.453, respectively. Finally, eight typical biomass samples were pyrolysed in a drop tube furnace to produce char and then analysed by TGA to test the char-CO2 reactivity validation model. A comparison of the predicted results with the experimental data shows good agreement, proving the applicability of the developed model.
资助项目	National Key R&D Program of China, China[2018YFC1901201] ; National Natural Science Foundation of China, China[51276184] ; Foundation of State Key Laboratory of Coal Combustion, China[FSKLCCA1804]
WOS关键词	RANDOM PORE MODEL ; DER-WAALS RADII ; CO2 GASIFICATION ; ALKALINE-EARTH ; STEAM GASIFICATION ; PYROLYSIS TEMPERATURE ; BIOCHAR REACTIVITY ; SOLID REACTIONS ; COAL PYROLYSIS ; COKE QUALITY
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000561591600002
资助机构	National Key R&D Program of China, China ; National Natural Science Foundation of China, China ; Foundation of State Key Laboratory of Coal Combustion, China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/27642]
专题	中国科学院广州能源研究所
通讯作者	Wang, Xiaohan
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Song, Qianshi,Wang, Xiaohan,Gu, Chunhan,et al. A comprehensive model of biomass char-CO2 gasification reactivity with inorganic element catalysis in the kinetic control zone based on TGA analysis[J]. CHEMICAL ENGINEERING JOURNAL,2020,398:10.
APA	Song, Qianshi.,Wang, Xiaohan.,Gu, Chunhan.,Wang, Ning.,Li, Haowen.,...&Qiao, Yu.(2020).A comprehensive model of biomass char-CO2 gasification reactivity with inorganic element catalysis in the kinetic control zone based on TGA analysis.CHEMICAL ENGINEERING JOURNAL,398,10.
MLA	Song, Qianshi,et al."A comprehensive model of biomass char-CO2 gasification reactivity with inorganic element catalysis in the kinetic control zone based on TGA analysis".CHEMICAL ENGINEERING JOURNAL 398(2020):10.