Previously a theoretical interpretation of the complex chemistry and chemical engineering aspects of the limestone injection - wet scrubbing processes was developed. The work described illustrates two means of using such a theoretical model to gain valuable process insight. A series of process simulations is described. These results demonstrate how the chemistry and performance of the limestone injection - wet scrubbing process vary with important parameters. The results of a pilot scale test series are presented. Analytical methods and data analysis techniques were developed and demonstrated. In addition, a computational technique was developed for making enthalpy balances in limestone scrubbing liquors.