3D Numerical Simulation of a Large Scale MTO Fluidized Bed Reactor

	3D Numerical Simulation of a Large Scale MTO Fluidized Bed Reactor
	Zhao, Yinfeng; Li, Hua; Ye, Mao; Liu, Zhongmin
刊名	industrial & engineering chemistry research
	2013-08-21
卷号	52 期号:33 页码:11354-11364
通讯作者	叶茂
产权排序	待补充
合作状况	英
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.
学科主题	物理化学
WOS标题词	science & technology ; technology
类目[WOS]	engineering, chemical
研究领域[WOS]	engineering
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
收录类别	SCI
资助信息	1，1
原文出处	11364
语种	英语
WOS记录号	WOS:000323536000014
公开日期	2014-09-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/119414]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab MTO, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	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.
APA	Zhao, Yinfeng,Li, Hua,Ye, Mao,&Liu, Zhongmin.(2013).3D Numerical Simulation of a Large Scale MTO Fluidized Bed Reactor.industrial & engineering chemistry research,52(33),11354-11364.
MLA	Zhao, Yinfeng,et al."3D Numerical Simulation of a Large Scale MTO Fluidized Bed Reactor".industrial & engineering chemistry research 52.33(2013):11354-11364.