Reactivity of sewage sludge, RDF, and straw chars towards NO

doi:10.1016/j.fuel.2018.08.164

	Reactivity of sewage sludge, RDF, and straw chars towards NO
	Ulusoy, Burak 1,2; Wu, Hao 1; Lin, Weigang 1,3; Karlstrom, Oskar 4; Li, Songgeng 3,5; Song, Wenli 3,5; Glarborg, Peter 1; Dam-Johansen, Kim 1
刊名	FUEL
	2019-01-15
卷号	236 页码:297-305
关键词	NO reduction Char reactivity Waste combustion Sewage sludge Refuse derived fuel
ISSN号	0016-2361
DOI	10.1016/j.fuel.2018.08.164
英文摘要	The reaction of NO with chars of sewage sludge, refuse derived fuel (RDF), and straw was investigated in a fixed bed reactor at temperatures from 800 to 900 degrees C and NO inlet concentrations from 400 to 1500 ppmv. The effect of ash forming elements in the chars was examined by comparing the reactivity of raw and demineralized chars. Compared to straw char, the reaction rates of sewage sludge and RDF char, at 800 degrees C and 400 ppmv inlet NO, was an order of magnitude and a factor of six higher, respectively. The very high reactivity of the two waste chars was attributed to the catalytic effect of their large content of calcium and iron. A simple first order globalized rate expression was employed to describe the reactivity of waste chars toward NO, which predicted reasonably well the the conversion of char nitrogen to NO during char combustion at 800 degrees C in 10% O-2. A comparison with literature data revealed a higher reactivity of the waste chars towards NO compared to that of coal and biomass chars. The results in this work provide a simple and validated rate expression to simulate waste char-NO reaction in boilers, and moreover facilitate a potential utilization of waste chars as primary or secondary measures for NO reduction.
资助项目	Sino-Danish Centre for Education and Research ; Academy of Finland[289666] ; Technical University of Denmark
WOS关键词	FLUIDIZED-BED COMBUSTION ; HIGH-TEMPERATURE ; BIOMASS CHAR ; COAL CHARS ; NITROGEN CONVERSION ; FIXED-BED ; REDUCTION ; OXIDATION ; CARBON ; AIR
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000447799400028
资助机构	Sino-Danish Centre for Education and Research ; Academy of Finland ; Technical University of Denmark
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/26178]
专题	中国科学院过程工程研究所
通讯作者	Wu, Hao
作者单位	1.Tech Univ Denmark, Dept Chem & Biochem Engn, Soltofts Plads 229, DK-2800 Lyngby, Denmark 2.Sino Danish Ctr Educ & Res, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China 4.Abo Akad Univ, Johan Gadolin Proc Chem, Turku, Finland 5.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Ulusoy, Burak,Wu, Hao,Lin, Weigang,et al. Reactivity of sewage sludge, RDF, and straw chars towards NO[J]. FUEL,2019,236:297-305.
APA	Ulusoy, Burak.,Wu, Hao.,Lin, Weigang.,Karlstrom, Oskar.,Li, Songgeng.,...&Dam-Johansen, Kim.(2019).Reactivity of sewage sludge, RDF, and straw chars towards NO.FUEL,236,297-305.
MLA	Ulusoy, Burak,et al."Reactivity of sewage sludge, RDF, and straw chars towards NO".FUEL 236(2019):297-305.