Acetone hydrogenation in exothermic reactor of an isopropanol-acetone-hydrogen chemical heat pump: effect of intra-particle mass and heat transfer

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	Acetone hydrogenation in exothermic reactor of an isopropanol-acetone-hydrogen chemical heat pump: effect of intra-particle mass and heat transfer
	Duan, Yanjun 1,2; Xu, Min 1; Huai, Xiulan 1; Li, Xunfeng 1
刊名	CHINESE SCIENCE BULLETIN
	2014-11-01
卷号	59 期号:33 页码:4436-4443
关键词	Intra-particle Acetone hydrogenation Diffusion Chemical heat pump Computational fluid dynamics
英文摘要	Intra-particle mass and heat transfer plays an important role in performance of the exothermic fixed-bed reactor for an isopropanol-acetone-hydrogen chemical heat pump. In this work, an exothermic fixed-bed reactor model, taking into account the actual packing structure, is established in the commercial software Fluent. A 120A degrees segment of a tube with tube-to-particle diameter ratio (n) of 4, where realistic particles are packed and set to porous media, is used to simulate the 3D external flow, concentration and temperature fields in the exothermic packed-bed reactor. The influence of catalyst particle diameter (d (p)) and micropore diameter (d (0)) on the intra-particle temperature, species distribution, reaction rate and selectivity is discussed. The appropriate d (p) and d (0) are obtained. Simulation results showed that intra-particle temperature gradient is not obvious. Large d (p) and small d (0) lead to remarkable gradient of reaction rate inside the catalyst particle and the decrease in the catalyst efficiency and reduce the acetone conversion and the selectivity in isopropanol. The optimal results reveal that the spherical catalyst with d (p) of 1 mm and d (pore) of 10 nm is appropriate for high-temperature acetone hydrogenation.
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	FIXED-BED ; HIGH-TEMPERATURE ; CFD ; FLOW ; SIMULATION ; PARTICLES ; TRANSPORT ; WALL
收录类别	SCI
语种	英语
WOS记录号	WOS:000344321500008
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106037]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Duan, Yanjun,Xu, Min,Huai, Xiulan,et al. Acetone hydrogenation in exothermic reactor of an isopropanol-acetone-hydrogen chemical heat pump: effect of intra-particle mass and heat transfer[J]. CHINESE SCIENCE BULLETIN,2014,59(33):4436-4443.
APA	Duan, Yanjun,Xu, Min,Huai, Xiulan,&Li, Xunfeng.(2014).Acetone hydrogenation in exothermic reactor of an isopropanol-acetone-hydrogen chemical heat pump: effect of intra-particle mass and heat transfer.CHINESE SCIENCE BULLETIN,59(33),4436-4443.
MLA	Duan, Yanjun,et al."Acetone hydrogenation in exothermic reactor of an isopropanol-acetone-hydrogen chemical heat pump: effect of intra-particle mass and heat transfer".CHINESE SCIENCE BULLETIN 59.33(2014):4436-4443.