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High-temperature drying behavior and kinetics of lignite tested by the micro fluidization analytical method
Zeng, Xi1,2; Wang, Fang1; Adamu, Mohammed Haruna1,2; Zhang, Lijuan1,3; Han, Zhennan4; Xu, Guangwen1,4
2019-10-01
Source PublicationFUEL
ISSN0016-2361
Volume253Pages:180-188
AbstractTo simulate the drying behavior of lignite in the high-temperature thermal conversion process, a micro fluidized bed reactor was adopted to measure the drying characteristics of moist char from 773 K to 1173 K and calculate the drying kinetics. Both temperature and the initial moisture strongly affected the drying behavior by changing the curve shape and drying time. The higher the initial moisture, the more obvious the influence of drying temperature. Compared to the conventional low-temperature lignite drying, the rate curve tested by MFBRA only had the growing-rate zone and falling-rate zone, but did not include the common constant-rate zone. Under the experimental condition, the Lewis drying model can describe the drying characteristics of wet char in MFBRA very well. The apparent diffusion coefficient and activation energy ranged from 1.765 E -10 to 4.756 E -10 m(2)/s, and 12.83-14.97 kJ/mol, respectively. The activation energy was much lower than those in literature.
KeywordLignite Thermal conversion Drying Kinetics Micro fluidized bed
DOI10.1016/j.fuel.2019.05.025
Language英语
WOS KeywordGAS-SOLID REACTION ; LOW-RANK COAL ; BROWN-COAL ; MOISTURE-CONTENT ; BED ; PYROLYSIS ; CHINESE ; GASIFICATION ; MODEL ; PERFORMANCE
Funding ProjectNational Key R&D Program of China[2018YFF01011400]
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationNational Key R&D Program of China
WOS IDWOS:000471841600019
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30108
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Fang; Xu, Guangwen
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.North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China
4.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Zeng, Xi,Wang, Fang,Adamu, Mohammed Haruna,et al. High-temperature drying behavior and kinetics of lignite tested by the micro fluidization analytical method[J]. FUEL,2019,253:180-188.
APA Zeng, Xi,Wang, Fang,Adamu, Mohammed Haruna,Zhang, Lijuan,Han, Zhennan,&Xu, Guangwen.(2019).High-temperature drying behavior and kinetics of lignite tested by the micro fluidization analytical method.FUEL,253,180-188.
MLA Zeng, Xi,et al."High-temperature drying behavior and kinetics of lignite tested by the micro fluidization analytical method".FUEL 253(2019):180-188.
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