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First Thermal and Fluids Engineering Summer Conference

ISSN: 2379-1748
ISBN: 978-1-56700-430-4

Efficiency of Mixture Separation on a Structured Packing−New Ideas and Approaches

DOI: 10.1615/TFESC1.eep.013213
pages 765-778

Aleksandr N. Pavlenko
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, 1, Lavrentiev Ave., Novosibirsk 630090, Russia

X. Li
School of Chemical Engineering and Technology, Tianjin University, 92, Weijin Road, Tianjin 300072, China

Vladimir Egorovich Zhukov
Kutateladze Institute of Thermophysics, Russian Academy of Sciences, 1, Academician Lavrentiev Avenue, Novosibirsk 630090, Russia

N. I. Pecherkin
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, 1, Lavrentiev Ave., Novosibirsk 630090, Russia

O. A. Volodin
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, 1 Acad. Lavrentiev Ave., Novosibirsk, 630090, Russia

Anton S. Surtaev
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, 1, Lavrentiev Ave., Novosibirsk 630090, Russia

X. Gao
School of Chemical Engineering and Technology, Tianjin University, 92, Weijin Road, Tianjin 300072, China

Luhong Zhang
School of Chemical Engineering and Technology, Tianjin University, 92, Weijin Road, Tianjin 300072, China

H. Sui
School of Chemical Engineering and Technology, Tianjin University, 92, Weijin Road, Tianjin 300072, China

H. Li
School of Chemical Engineering and Technology, Tianjin University, 92, Weijin Road, Tianjin 300072, China


KEY WORDS: Distillation, structured surfaces, mixture separation efficiency, mass transfer at the counter-current flows, flows self-organization, multichannel systems, liquid and vapor maldistributions, film flows, wetting of a surface, liquid film rupture.

Abstract

The paper presents experimental results on separation efficiency, pressure drop and distribution of flow parameters over the cross-section at uniform and non-uniform irrigation of "Mellapak 350.Y" structured packing in a distillation column with the diameter of 0.9 m using the mixture of Freon R114 and R21. Experimental data on dynamic characteristics of formation of large-scale temperature maldistribution over the packing cross-section, when column operation becomes steady, were obtained. The dynamics of changes in the structure of large-scale temperature maldistribution over the packing cross-section was studied at various disturbing effects on the parameters of jet irrigation. Experimental data on the effect of microtexture, perforation, angle of rib inclination on liquid spreading over the surface of the single elements of the structured packing were analyzed. The results obtained are the methodological and comparative base for future research aimed at finding the new methods of mass transfer intensification at mixture separation, based on dynamically controlled irrigation of the regular packing.

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