3.7 Solution penetration test.
The membrane module was the core equipment of the process. The experimental instrument was arranged similar to the experimental equipment used in MACC. The initial weight of the solution was recorded with a precision electronic balance (Baoding Signal fluid Technology Co.), and the heat exchange with the coolant is to be carried out. The weight of the solution was measured every minute. In the solution penetration test, it was found that the permeation of the two kinds of membranes were both very small, which the mass transfer process was ignorable. This result indicated the hypothesis that MACC possess only heat transfer process was true.