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学科主题: 物理化学
题名: 3D Numerical Simulation of a Large Scale MTO Fluidized Bed Reactor
作者: Zhao, Yinfeng1;  Li, Hua1;  Ye, Mao1;  Liu, Zhongmin1
通讯作者: 叶茂
刊名: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
发表日期: 2013-08-21
DOI: 10.1021/ie303467k
卷: 52, 期:33, 页:11354-11364
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: DNL12
项目归属: DNL1206
产权排名: 待补充
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
资助者: 1,1
研究领域[WOS]: Engineering
英文摘要: The methanol to olefins (MTO) process has been successfully commercialized in China and will potentially become an important route for light olefins production. In this work, a modeling approach is presented for MTO fluidized bed reactor design and operation optimization. The two-fluid model (TFM) where the solid phase shear viscosity and solid phase pressure are derived from kinetic theory of granular flow has been used to model the solid gas two-phase flows. The interphase drag force is calculated by either the traditional Gidaspow model or a recently developed EMMS-bubble model. The simulation study has been performed for a fluidized bed reactor in a 16 kt/a DMTO unit. It has been shown that the Gidaspow model cannot predict a stable dense bed, while the EMMS-bubbling model could simulate the solid fraction distribution in the reactor reasonable well. A reaction model based on the simple MTO reaction kinetics has been implemented to test the effectiveness of the model approach. The simulation results show that the methanol is converted rapidly just above the gas inlet. The selectivity of ethylene and propylene however are underpredicted, while the selectivity of CO2 and other products are overestimated. It is suggested that a further extension of the EMMS model to a turbulent fluidized bed is important in order to get more quantitative results. Also the MTO reaction kinetics for a commercial DMTO catalyst, in which the coke formation kinetics should be included, is highly desired.
关键词[WOS]: DISCRETE PARTICLE SIMULATION ;  GAS-SOLID FLOW ;  BUBBLING FLUIDIZATION ;  OLEFIN CONVERSION ;  DRAG COEFFICIENT ;  CFD SIMULATION ;  2-FLUID MODEL ;  GRANULAR FLOW ;  2-PHASE FLOW ;  METHANOL
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000323536000014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119414
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab MTO, Dalian 116023, Peoples R China

Recommended Citation:
Zhao, Yinfeng,Li, Hua,Ye, Mao,et al. 3D Numerical Simulation of a Large Scale MTO Fluidized Bed Reactor[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2013,52(33):11354-11364.
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