CAS OpenIR
Reactivity of sewage sludge, RDF, and straw chars towards NO
Ulusoy, Burak1,2; Wu, Hao1; Lin, Weigang1,3; Karlstrom, Oskar4; Li, Songgeng3,5; Song, Wenli3,5; Glarborg, Peter1; Dam-Johansen, Kim1
2019-01-15
Source PublicationFUEL
ISSN0016-2361
Volume236Pages:297-305
AbstractThe 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.
KeywordNO reduction Char reactivity Waste combustion Sewage sludge Refuse derived fuel
DOI10.1016/j.fuel.2018.08.164
Language英语
WOS KeywordFLUIDIZED-BED COMBUSTION ; HIGH-TEMPERATURE ; BIOMASS CHAR ; COAL CHARS ; NITROGEN CONVERSION ; FIXED-BED ; REDUCTION ; OXIDATION ; CARBON ; AIR
Funding ProjectSino-Danish Centre for Education and Research ; Academy of Finland[289666] ; Technical University of Denmark
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationSino-Danish Centre for Education and Research ; Academy of Finland ; Technical University of Denmark
WOS IDWOS:000447799400028
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26179
Collection中国科学院过程工程研究所
Corresponding AuthorWu, Hao
Affiliation1.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
Recommended Citation
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.
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