An Alfa Laval plate and frame heat exchanger having 61 plates was used as
an interchanger for a 30% DEA solution in an amine processing plant located in
The lean solution was entering the heat exchanger at 244ºF and leaving at
164ºF. The rich solution was entering the heat exchanger at 140ºF and
leaving at 229ºF. Flow rate was 48 GPM.
Fouling forced the plant to acid clean the heat exchanger every 60 days as
the temperature differentials would drop below 70º on the lean side and below
90º on the rich side.