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Experimental study on vapour splitter in packed divided wall column
Author(s) -
Huaqiang Ge,
Xiangwu Chen,
Nan Chen,
Wenyi Chen
Publication year - 2016
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.4598
Subject(s) - splitter , volumetric flow rate , flow (mathematics) , mechanics , materials science , packed bed , water vapor , chemistry , analytical chemistry (journal) , optics , meteorology , chromatography , physics
BACKGROUND Adjustment of the vapour split in a divided wall column ( DWC ) is a great challenge. In order to resolve this problem, a vapour splitter was proposed and the properties and performance of the vapour splitter were examined in a number of experiments. RESULTS Gas flow rates and vapour split changed significantly with blade angle in the range 50–10°. When the liquid flow rates on both sides were the same, the vapour split reduced with increasing liquid flow rate. The gas flow rate decreased with increase of liquid flow rate in the same side. The vapour split increased when the gas velocity decreased. When the V‐type cap angle was 50° the gas nonuniformity was minimum. The gas nonuniformity also varied with blade angle, but fortunately remained at a low level. CONCLUSION The device can adjust the vapour split regardless of operating conditions. The gas is distributed uniformly before entering the packed bed. There are some limitations to this device, but the results indicate that the prospects of our vapour splitter are promising. © 2014 Society of Chemical Industry