Multiscale Simulation and Experimental Study of Novel SiC Structured Packings

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	Multiscale Simulation and Experimental Study of Novel SiC Structured Packings
	X. G. Li ; G. H. Gao ; L. H. Zhang ; H. Sui ; H. Li ; X. Gao ; Z. M. Yang ; C. Tian ; J. S. Zhang
刊名	Industrial & Engineering Chemistry Research
	2012
卷号	51 期号:2 页码:920-929
关键词	pressure-drop cfd simulations mass-transfer metal foams liquid flow film flow catalysts oxidation supports phase
ISSN号	0888-5885
中文摘要	Two SiC corrugated structured packings are developed: one being smooth plate and the other made of porous SiC foam. Accordingly, a macroscale three-dimensional (3D) geometric module of two corrugated sheets is introduced with a periodic boundary and a microscale computational geometry is gained from arrayed tetrakaidecahedrons. Single-phase modeling is carried out in the macro module to determine the dry pressure drops for the two types of packing. The results show that the porous SiC packing has a higher pressure drop than that of the smooth one. Two-phase flow for smooth packing is simulated with a VOF-like model provided by CFX in the macroscale geometry. It is found that openings in corrugated plates can improve the film distribution and mass-transfer efficiency. Microsimulation of two-phase flow in the porous SiC packing is performed, and the results prove that liquid can go inside the SiC foam and extend along the foam matrix with a velocity. Therefore, the porous foam can provide a larger effective gas-liquid interfacial area for mass transfer, which explains its larger theoretical plate number, compared to the smooth packing. Performance parameters including pressure drop and liquid holdup have been measured to validate the simulation method, while the distillation experiments have been carried out to study the mass-transfer efficiency of the novel SiC packings.
原文出处	://WOS:000299588800036
公开日期	2013-02-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/60076]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	X. G. Li,G. H. Gao,L. H. Zhang,et al. Multiscale Simulation and Experimental Study of Novel SiC Structured Packings[J]. Industrial & Engineering Chemistry Research,2012,51(2):920-929.
APA	X. G. Li.,G. H. Gao.,L. H. Zhang.,H. Sui.,H. Li.,...&J. S. Zhang.(2012).Multiscale Simulation and Experimental Study of Novel SiC Structured Packings.Industrial & Engineering Chemistry Research,51(2),920-929.
MLA	X. G. Li,et al."Multiscale Simulation and Experimental Study of Novel SiC Structured Packings".Industrial & Engineering Chemistry Research 51.2(2012):920-929.