rectifying column

rectifying column

[′rek·tə‚fī·iŋ ‚käl·əm]
(chemical engineering)
Portion of a distillation column above the feed tray in which rising vapor is enriched by interaction with a countercurrent falling stream of condensed vapor; contrasted to the stripping column section below the column feed tray.
References in periodicals archive ?
The latter is integrated between the evaporator and the compressor and is composed of two accumulators, a heater, and a rectifying column. When an increase in the capacity of the HP is required, the expansion valve opens and the accumulator above the rectifying column is partially filled with liquid refrigerant.
- Part 2 Set vacuum distillation plant comprising a thin layer of vacuum and a vacuum distillation unit with a rectifying column for laboratory use,
column still: tall, metal still of one (analyzing column), two (rectifying column), three (hydroselection column) or four columns in which a fermented mash is boiled to produce vapors which, once condensed, are distilled into a spirit of at least 60% alcohol by volume (abv) and as much as 95%, depending on how many columns there are.
Section 9 - Set vacuum distillation plant comprising a thin layer of vacuum and vacuum distillation installation with a rectifying column for laboratory use;