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NO reduction by different tar agents and model compounds in a drop-tube reactor
Bunman, Yutthasin1,2; Do, Hai-Sam1,2; Zeng, Xi1; Han, Zhennan3; Gao, Shiqiu1; Xu, Guangwen1,3

Our previous studies suggested that the biomass tar derived from pyrolysis of distilled spirit lees (DSL) is an attractive agent for lowering NOx emission in the circulating fluidized bed decoupling combustion (CFBDC) process. The present work is furthered to evaluate the capabilities of other tar agents including sawdust (SD) tar and Xianfeng (XF) coal tar for NO reduction in a lab-scale drop-tube reactor. Additionally, five representative model tar compounds including phenol, benzene, acetic acid, methyl acetate and heptane were also tested to clarify the contribution of the main components in tar agents to NO reduction. The realized NO reduction efficiency by tar obviously varied with the reburning stoichiometric ratio (SR) and reaction temperature. At a specified mass feeding rate of reductant, say 0.15 g/min, the NO reduction realized by the SD tar is higher than that by the XF coal tar, and was even better than that by the DSL tar obtained in our previous study. Testing the NO reduction by model tar compounds revealed that phenol plays an important role in enabling its good NO reduction for the SD tar. The major understanding from the work is that the compounds containing at least an aromatic ring (e.g. phenol, benzene, etc.) are the major contributor for reducing NO in either biomass tar or coal tar.

KeywordBiomass Tar Coal Tar Reburning Decoupling Combustion No Reduction Drop-tube Reactor
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
WOS KeywordNitric-oxide Reduction ; Entrained Flow Reactor ; Biomass Gasification ; Reburning Conditions ; Fuel Characteristics ; Hydrocarbon Fuels ; High-temperature ; Fluidized-bed ; Natural-gas ; Pyrolysis
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS SubjectChemistry, Applied ; Energy & Fuels ; Engineering, Chemical
Funding OrganizationNational Basic Research Program of China(2014BAC26B04 ; National Natural Science Foundation of China(U1302273) ; 2014CB744303)
WOS IDWOS:000425205300021
Citation statistics
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Bunman, Yutthasin,Do, Hai-Sam,Zeng, Xi,et al. NO reduction by different tar agents and model compounds in a drop-tube reactor[J]. FUEL PROCESSING TECHNOLOGY,2018,172:187-194.
APA Bunman, Yutthasin,Do, Hai-Sam,Zeng, Xi,Han, Zhennan,Gao, Shiqiu,&Xu, Guangwen.(2018).NO reduction by different tar agents and model compounds in a drop-tube reactor.FUEL PROCESSING TECHNOLOGY,172,187-194.
MLA Bunman, Yutthasin,et al."NO reduction by different tar agents and model compounds in a drop-tube reactor".FUEL PROCESSING TECHNOLOGY 172(2018):187-194.
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