Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors

	Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors
	Li, Jinghai 3; Ye, Mao 4; Lu, Bona 2,3; Zhang, Jingyuan 2,3; Luo, Hao 1,2; Wang, Wei 2,3; Li, Hua 4; Liu, Zhongmin 4
刊名	CHEMICAL ENGINEERING SCIENCE
	2017-11-02
卷号	171 页码:244-255
关键词	EMMS Scale-up Fluidized bed Simulation MTO Meso-scale
英文摘要	Scale-up of fluidized bed reactors has long been regarded as a big challenge in chemical reaction engineering. While traditional scaling theories are mostly based on hydrodynamics similarity, computational fluid dynamics (CFD) aided approach allows direct coupling between hydrodynamics and reaction factors and is expected to speed up the experiment-based scale-up process with lower cost. In this study, we aim to investigate the scale-up effects through simulations of a series of methanol-to-olefins (MTO) reactors of different sizes. The two-fluid model and energy-minimization multi-scale (EMMS)-based drag models, are combined in simulations. The fluidization characteristics in terms of flow structures, velocity distribution, mass fractions of gaseous product and coke distribution are presented against available experimental data for different-sized reactors. It is found that typical hydrodynamic features can be reasonably predicted, while the prediction of reaction behavior shows growing discrepancy with increasing reactor size. Possible reasons are discussed in the last section along with future work presented for scale-up studies. (C) 2017 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	SOLID RISER FLOWS ; CFD SIMULATION ; MULTISCALE CFD ; EMMS MODEL ; MTO
收录类别	SCI
语种	英语
WOS记录号	WOS:000409285000019
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/150000]
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	1.Tech Univ Denmark, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark 2.Univ Chinese Acad Sci, Sinodanish Coll, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab MTO, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Li, Jinghai,Ye, Mao,Lu, Bona,et al. Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors[J]. CHEMICAL ENGINEERING SCIENCE,2017,171:244-255.
APA	Li, Jinghai.,Ye, Mao.,Lu, Bona.,Zhang, Jingyuan.,Luo, Hao.,...&Liu, Zhongmin.(2017).Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors.CHEMICAL ENGINEERING SCIENCE,171,244-255.
MLA	Li, Jinghai,et al."Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors".CHEMICAL ENGINEERING SCIENCE 171(2017):244-255.