fractionating column

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Related to Fractionation column: distillation column

fractionating column

n
(Chemistry) chem a long vertical cylinder used in fractional distillation, in which internal reflux enables separation of high and low boiling fractions to take place
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References in periodicals archive ?
As a consequence, the mathematical model must account for the reaction rates of the individual chemical reaction steps, the rates of mass removal of volatile species and the thermodynamic equilibrium inside the reactor and the fractionation column. Based on the proposed assumptions, the model equations used to describe the esterification step are presented in Table 1.
Construction work on new equipment - including a combined reaction and fractionation column - is well under way at the site and commissioning is expected to begin in July.
They decided to focus on the fluid catalytic cracking (FCC) overhead vapours, coming from the head of the fractionation column.
These LPG products go overhead and are condensed by the rich oil still reflux condenser and then routed to the fractionation columns. The liquid from the bottom of the rich oil still is circulated through the hot oil system as a source of heat for all the plant reboilers and part of it is used as absorbent lean oil.
Expansion at Hamriyah and Saja' plants has included replacement of some of the fractionation columns, a new turbo-expander and a new system improving recovery of liquids.
It had banned the import by or sale to Libya of refinery equipment, including boilers, furnaces, fractionation columns, pumps, catalytic reactors, and prepared catalysts - as well as spare parts for almost all equipment in the oil sector.
The volatiles collected by the traditional process must then be concentrated further using fractionation columns. These columns have retention times measured in hours instead of the minutes and operating temperatures are high.