Experimental Study of the Flooding and Appearance of a Bubble Bed on Top of a Countercurrent Packed-Bed Column

0166267 - UCHP-M 20013124 RIV US eng J - Journal Article
Jiřičný, Vladimír - Staněk, Vladimír - Svoboda, Petr - Ondráček, Jakub
Experimental Study of the Flooding and Appearance of a Bubble Bed on Top of a Countercurrent Packed-Bed Column.
Industrial and Engineering Chemistry Research. Roč. 40, č. 1 (2001), s. 407-412. ISSN 0888-5885
R&D Projects: GA ČR GA203/97/1174
Institutional research plan: CEZ:AV0Z4072921
Keywords : appearance * bubble-bed * packed bed column
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Impact factor: 1.351, year: 2001

This paper presents an experimental study of the countercurrent packed-bed column in the course of flooding and above the flooding point when the column operates as a packed bed and a bubble bed in series. Pressure-drop and liquid-holdup data are presented for the packed-bed and bubble-bed parts of the system. The experiments show that for the two beds in series the hydrodynamic conditions within the packed-bed are similar for various gas-liquid velocity conditions. The pressure drop in the initial stage of flooding is essentially indipendent of gas-liquid velocities. The porosity of the forming bubble bed is initially high/low for high/low liquid velocities. For expanded bubble beds their porosity increases with increasing gas velocities.
Permanent Link: http://hdl.handle.net/11104/0063395