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Biomass steam gasif...
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Qi, TianTianjin University
(author)
Biomass steam gasification in bubbling fluidized bed for higher-H 2 syngas : CFD simulation with coarse grain model
- Article/chapterEnglish2019
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LIBRIS-ID:oai:lup.lub.lu.se:721d3f8d-9dfc-4848-b655-4b2c2f111a1b
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https://lup.lub.lu.se/record/721d3f8d-9dfc-4848-b655-4b2c2f111a1bURI
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https://doi.org/10.1016/j.ijhydene.2019.01.146DOI
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Language:English
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Summary in:English
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A comprehensive coarse grain model (CGM) is applied to simulation of biomass steam gasification in bubbling fluidized bed reactor. The CGM was evaluated by comparing the hydrodynamic behavior and heat transfer prediction with the results predicted using the discrete element method (DEM) and experimental data in a lab-scale fluidized bed furnace. CGM shows good performance and the computational time is significantly shorter than the DEM approach. The CGM is used to study the effects of different operating temperature and steam/biomass (S/B) ratio on the gasification process and product gas composition. The results show that higher temperature enhances the production of CO, and higher S/B ratio improves the production of H 2 , while it suppresses the production of CO. For the main product H 2 , the minimum relative error of CGM in comparison with experiment is 1%, the maximum relative error is less than 4%. For the total gas yield and H 2 gas yield, the maximum relative errors are less than 7%. The predicted concentration of different product gases is in good agreement with experimental data. CGM is shown to provide reliable prediction of the gasification process in fluidized bed furnace with considerably reduced computational time.
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Lei, TingzhouTianjin University
(author)
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Yan, BeibeiTianjin University(Swepub:lu)vok-biy
(author)
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Chen, GuanyiTianjin University
(author)
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Li, ZhongshanLund University,Lunds universitet,Förbränningsfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Combustion Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Tianjin University(Swepub:lu)forb-zli
(author)
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Fatehi, HesameddinLund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)he2534fa
(author)
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Wang, ZhiweiHenan Academy of Agricultural Sciences
(author)
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Bai, Xue SongLund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)vok-xba
(author)
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Tianjin UniversityFörbränningsfysik
(creator_code:org_t)
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In:International Journal of Hydrogen Energy: Elsevier BV44:13, s. 6448-64600360-3199
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