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Effect of the Moisture Content in Coal on the Pyrolysis Behavior in an Indirectly Heated Fixed-Bed Reactor with Internals
Hu, Erfeng1,2; Zeng, Xi2; Ma, Dachau3; Wang, Fang2; Yi, Xiaojian4; Li, Yuan5; Fu, Xiaoheng1
2017-02-01
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume31Issue:2Pages:1347-1354
Abstract

The fixed-bed reactor with internals has been proposed to enhance the pyrolysis performance for coal. In this study, the pyrolysis behavior of different coal moisture contents and the reaction mechanism were investigated in an indirectly heated fixed-bed reactor with internals. The results showed that, at a furnace temperature of 900 degrees C, the increased coal moisture content went from 0.41 to 11.68 wt % and significantly modified the temperature fields, thereby prolonging the pyrolysis time to reach 500 degrees C and then enhancing the condensation and trapping of the coal at the bed center. Therefore, the tar yield and light tar content were raised from 9.21 and 63.7 wt % to 10.74 and 64.5 wt %, respectively. However, when the coal moisture content exceeded 16.77 wt %, the tar yield and light tar content decreased to 8.55 and 62.0 wt %, respectively. In addition, the higher heating value (HHV) of char with internals was dramatically higher than that without internals, and the char HHV in the reactor with internals rose primarily and then decreased with the increase in the coal moisture; meanwhile, its fixed carbon content of char showed an increase, followed by a decline. In contrast, the pyrolysis products varied slightly in the reactor without internals.

SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/acs.energyfuels.6b02780
Indexed BySCI
Language英语
WOS KeywordRapid Pyrolysis ; Oil-shale ; Water-vapor ; Tar ; Gasification ; Conversion ; Char ; Technology ; Oxidation ; Products
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationNational High-Tech Research and Development Projects(2015AA050505-02) ; National Natural Science Foundation of China(U1302273) ; State Scholarship Fund of China(201506430030)
WOS IDWOS:000394560900030
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22084
Collection多相复杂系统国家重点实验室
Affiliation1.China Univ Min & Technol Beijing, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Guangxi Univ, Sch Environm, Nanning 530004, Guangxi, Peoples R China
4.China North Ind Grp Corp, Res Inst 1, Dept Overall Technol, Beijing 100072, Peoples R China
5.Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada
Recommended Citation
GB/T 7714
Hu, Erfeng,Zeng, Xi,Ma, Dachau,et al. Effect of the Moisture Content in Coal on the Pyrolysis Behavior in an Indirectly Heated Fixed-Bed Reactor with Internals[J]. ENERGY & FUELS,2017,31(2):1347-1354.
APA Hu, Erfeng.,Zeng, Xi.,Ma, Dachau.,Wang, Fang.,Yi, Xiaojian.,...&Fu, Xiaoheng.(2017).Effect of the Moisture Content in Coal on the Pyrolysis Behavior in an Indirectly Heated Fixed-Bed Reactor with Internals.ENERGY & FUELS,31(2),1347-1354.
MLA Hu, Erfeng,et al."Effect of the Moisture Content in Coal on the Pyrolysis Behavior in an Indirectly Heated Fixed-Bed Reactor with Internals".ENERGY & FUELS 31.2(2017):1347-1354.
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