perforated-plate column

perforated-plate column

[′pər·fə‚rād·əd ¦plāt ′käl·əm]
(chemical engineering)
Distillation column in which vapor-liquid contact is provided by perforated plates instead of bubble-cap trays.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.