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Syngas methanation in fluidized bed for an advanced two-stage process of SNG production
Liu, Jiao1; Cui, Dianmiao1,2; Yao, Changbin1; Yu, Jian1; Su, Fabing1; Xu, Guangwen1
AbstractProcess simulation was conducted to identify the technical feasibility and optimal reactor combination for a simple two-stage methanation process producing substitute natural gas (SNG). With two adiabatic fixed bed reactors in series the reaction temperature control requires high product gas recycle ratio which is much energy-consuming. An isothermal fluidized bed at 723-823 K combining a tail-end fixed bed was shown to be a high efficient one-pass methanation process. Over a Ni-Mg/Al2O3 catalyst methanation by laboratory tests in a fluidized bed exhibited obvious technical superiority over that in a fixed bed in terms of activity and carbon deposition on the spent catalyst. By noting further that the low-velocity bubbling fluidized bed leads to extremely high cross-sectional areas for large-scale industrial applications, the optimal reactor combination was proposed to be a fast fluidized bed and a clean-up fixed bed, which not only simplifies the methanation process but also reduces the reactor size and catalyst amount required. (C) 2015 Elsevier B.V. All rights reserved.
KeywordMethanation Substitute Natural Gas Process Simulation Fast Fluidized Bed Coal Sng
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS SubjectChemistry, Applied ; Energy & Fuels ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(21161140329) ; International Science & Technology Cooperation Program of China(2013DFG60060) ; National Key Technology RD Program(2012BAC03B05) ; National High Technology Research and Development Program of China(2015AA050502)
WOS IDWOS:000366779200018
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Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
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
Recommended Citation
GB/T 7714
Liu, Jiao,Cui, Dianmiao,Yao, Changbin,et al. Syngas methanation in fluidized bed for an advanced two-stage process of SNG production[J]. FUEL PROCESSING TECHNOLOGY,2016,141(JAN):130-137.
APA Liu, Jiao,Cui, Dianmiao,Yao, Changbin,Yu, Jian,Su, Fabing,&Xu, Guangwen.(2016).Syngas methanation in fluidized bed for an advanced two-stage process of SNG production.FUEL PROCESSING TECHNOLOGY,141(JAN),130-137.
MLA Liu, Jiao,et al."Syngas methanation in fluidized bed for an advanced two-stage process of SNG production".FUEL PROCESSING TECHNOLOGY 141.JAN(2016):130-137.
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