Combined static mixers for high viscous fluids mixing

doi:10.1007/s11705-009-0112-x

Front Chem Eng Chin

2009, Vol. 3

Issue (1) : 93-96 https://doi.org/10.1007/s11705-009-0112-x

RESEARCH ARTICLE

Combined static mixers for high viscous fluids mixing

Zhenhao XI¹, Weizhen SUN¹, Ling ZHAO¹(email.png), Zhaoyan LIU²

1. 1. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; 2. 2. Beijing Innovation Polymerization Technology Company, Beijing 100050, China

Download: PDF(195 KB) HTML
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract

A new static mixer Cross-over-Disc has been invented to strip off the boundary layer and to make strong radial mixing. The pressure drop of Cross-over-Disc is 12—26 times as large as that of empty pipe with equivalent diameter and length. The mixing performance of Cross-over-Disc with 14 elements has been investigated in the viscosity range of 190—250 Pa?s by decoloration method, and the gray analysis of images shows that mixing inhomogeneity is about 7.5% and 9.4% for the mixing ratio of 5∶1 and 10∶1, respectively. Furthermore, mixing inhomogeneity for a combination of static mixing elements (four from Cross-over-Disc and three pairs from Sulzer-type) can be decreased to 2.1%—3.1% within a reasonable range of pressure drop.

Keywords static mixer Cross-over-Disc pressure drop mixing performance high viscous fluid

Corresponding Author(s): ZHAO Ling,Email:zhaoling@ecust.edu.cn

Issue Date: 05 March 2009

Cite this article:

Zhenhao XI,Weizhen SUN,Ling ZHAO, et al. Combined static mixers for high viscous fluids mixing[J]. Front Chem Eng Chin, 2009, 3(1): 93-96.

URL:

https://academic.hep.com.cn/fcse/EN/10.1007/s11705-009-0112-x
https://academic.hep.com.cn/fcse/EN/Y2009/V3/I1/93

1	Hobbs D M, Muzzio F J. Reynolds number effects on laminar mixing in the Kenics static mixer. Chem Eng J , 1998, 70: 93-103
2	Liu Z Y. Patent CN1490065, 2004-04-21
3	Liu C J, Lu H B, Liu H, Yuan X G. Computational fluid dynamic simulation of the hydrodynamics characteristic in a static mixer. Journal of Tianjin University Science and Technology , 2007, 40(6): 677-682
4	Shah N F, Kale D D. Pressure drop for laminar flow of non-Newtonian fluids in static mixers. Chem Eng Sci , 1991, 46: 2159-2161 doi: 10.1016/0009-2509(91)80175-X
5	Hyun S S, Sang P H. A general correlation for pressure drop in a Kenics static mixer. Chem Eng Sci , 2005, 60: 5696-5704 doi: 10.1016/j.ces.2005.04.084

[1]	Minhua ZHANG,Fang MENG,Zhongfeng GENG. CFD simulation on shell-and-tube heat exchangers with small-angle helical baffles[J]. Front. Chem. Sci. Eng., 2015, 9(2): 183-193.
[2]	CHEN Yunhua, ZHU Xuedong, WU Yongqiang, ZHU Zibin. The investigation of pressure drop in moving-beds[J]. Front. Chem. Sci. Eng., 2007, 1(2): 184-189.

Viewed

Full text

Abstract

Cited

Shared

Discussed