Effects of water on steam rectification in a packed column

doi:10.1016/j.cherd.2011.06.004

CORC > 化学研究所 > 中国科学院化学研究所

	Effects of water on steam rectification in a packed column
	Qian, Qingli 1; Wang, Hongxing 3; Bai, Peng 2; Yuan, Guoqing 1
刊名	CHEMICAL ENGINEERING RESEARCH & DESIGN
	2011-12-01
卷号	89 期号:12A 页码:2560-2565
关键词	Steam Rectification Packed Bed Mass Transfer Multiphase Flow
ISSN号	0263-8762
DOI	10.1016/j.cherd.2011.06.004
英文摘要	The effects of water on steam rectification, i.e., multi-stage saturated steam distillation, were investigated in a packed column. N-octane-p-xylene and 1,3,5-trimethylbenzene-1,2,4-trimethylbenzene were used as test systems. Both binary systems are nearly ideal systems and insoluble in water, thus the effects of water in steam rectification can be clearly and definitely revealed. Such unpolar organic liquid is named as "oil". The water/oil at column top can be separated and refluxed at different ratio. Compared with conventional rectification, there are some peculiar phenomena in steam rectification. Water greatly enhances the flooding vapor velocity of the rectification, in addition, water plays a predominant role in pressure drop of the packed bed near flooding point. It is clear that liquid water in the packed bed can promote mass transfer of steam rectification, especially for materials with higher viscosity. In a word, steam rectification can be operated at low temperature with good mass transfer. (C) 2011 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
语种	英语
出版者	INST CHEMICAL ENGINEERS
WOS记录号	WOS:000298720300007
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/71305]
专题	中国科学院化学研究所
通讯作者	Qian, Qingli
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci BNLMS, New Mat Lab, Inst Chem, Beijing 100190, Peoples R China 2.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 3.Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
推荐引用方式 GB/T 7714	Qian, Qingli,Wang, Hongxing,Bai, Peng,et al. Effects of water on steam rectification in a packed column[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN,2011,89(12A):2560-2565.
APA	Qian, Qingli,Wang, Hongxing,Bai, Peng,&Yuan, Guoqing.(2011).Effects of water on steam rectification in a packed column.CHEMICAL ENGINEERING RESEARCH & DESIGN,89(12A),2560-2565.
MLA	Qian, Qingli,et al."Effects of water on steam rectification in a packed column".CHEMICAL ENGINEERING RESEARCH & DESIGN 89.12A(2011):2560-2565.