| In gas absorption a soluble component is absorbed by
contact with a liquid phase in which the component is soluble. This
system is used for scrubbing gas streams of components such as sulphur
dioxide, carbon dioxide and ammonia. In this experiment, water is used
to remove CO2 from air. In this experiment, the performance
of a packed gas-liquid absorption tower is evaluated. The primary
objective is to determine how the mass transfer rate is affected by gas
flow rate, especially as the column approaches its loading and flooding
points.
Purpose
The goal of this laboratory exercise is to study the performance of
an absorption column.
Learning Objectives
The main learning objective of this laboratory exercise is to gain
experience in fully characterizing the behavior of a gas absorption
column. To do this, one must examine such parameters as the composition
of the overhead and bottoms products at various feed rates and inlet
compositions. These parameters should be calculated theoretically using
available computer programs and determined experimentally from the
column. |
