Oxidative filtration for flyash & tar removal from 1.0 MWth fixed-bed biomass air gasification

doi:10.1016/j.biombioe.2019.01.018

GIEC OpenIR

	Oxidative filtration for flyash & tar removal from 1.0 MWth fixed-bed biomass air gasification
	Lang, Lin1,2 ; Yang, Wenshen 1; Xie, Jianjun1 ; Yin, Xiuli1 ; Wu, Chuangzhi1,3 ; Lin, Jerry Y. S.2
	2019-03-01
发表期刊	BIOMASS & BIOENERGY
ISSN	0961-9534
卷号	122 页码:145-155
通讯作者	Yin, Xiuli(xlyin@ms.giec.ac.cn) ; Wu, Chuangzhi(wucz@ms.giec.ac.cn)
摘要	Experimental campaigns were performed with the aim to study the hot gas filtration process during the pilotscale biomass gasification at GIEC. This paper gives an overview of the continuous and steady filtration tests performed with stable pressure drop (Delta P) for over 200 h in 400-600 degrees C, using wood chip and charcoal as the feedstock. The ceramic candles show good long-term filtration performance with a permanent cake layer serving as an extra filtration medium. Tar content is found to be the controlling resistance for the biomass gasification-filtration process. A novel oxidative filtration is reported to lead to a simultaneous removal of carbonaceous flyash particles (CFPs) and tars as well as a dramatic Delta P decrease with no obvious degradation in the heating value of the producer gas, in which a tiny amount of additional air (<= 5.5 vol%) is introduced into the producer gas. Under the optimum condition, the CFP removal efficiency is always > 99.0% and the tar removal efficiency of 92.2% could be achieved, with Delta P kept within a range of 1000-2000 N m(-2) M the gas superficial velocity of 1.5-2.0 cm s(-1) and 0.5-1.5% oxygen content of the producer gas (O-2%). It is found that filter candles could act as a reactor without any catalyst to partially oxidize tars and CFPs with a little heat generation when hot gas filtration is operated in the presence of low oxygen concentration in 400-600 degrees C. The efficient CFP removal and tar reduction during the high-temperature oxidative filtration is beneficial for downstream units and their operability.
关键词	Hot gas filtration Biomass gasification Filter candles Oxidation Tar
DOI	10.1016/j.biombioe.2019.01.018
关键词[WOS]	HOT GAS FILTRATION ; SYNGAS PRODUCTION ; FILTER CANDLES ; CORROSION ; CONVERSION ; HYDROGEN ; STRENGTH ; BEHAVIOR ; ALUMINA ; CARBON
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51676192] ; National Natural Science Foundation of China[51661145022] ; Science and Technology Program of Guangzhou[201707010237] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21060600]
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
项目资助者	National Natural Science Foundation of China ; Science and Technology Program of Guangzhou ; Strategic Priority Research Program of Chinese Academy of Sciences
WOS类目	Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号	WOS:000459461800016
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/24546
专题	中国科学院广州能源研究所
通讯作者	Yin, Xiuli; Wu, Chuangzhi
作者单位	1.Chinese Acad Sci, CAS Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lang, Lin,Yang, Wenshen,Xie, Jianjun,et al. Oxidative filtration for flyash & tar removal from 1.0 MWth fixed-bed biomass air gasification[J]. BIOMASS & BIOENERGY,2019,122:145-155.
APA	Lang, Lin,Yang, Wenshen,Xie, Jianjun,Yin, Xiuli,Wu, Chuangzhi,&Lin, Jerry Y. S..(2019).Oxidative filtration for flyash & tar removal from 1.0 MWth fixed-bed biomass air gasification.BIOMASS & BIOENERGY,122,145-155.
MLA	Lang, Lin,et al."Oxidative filtration for flyash & tar removal from 1.0 MWth fixed-bed biomass air gasification".BIOMASS & BIOENERGY 122(2019):145-155.