A program has been written that simulates the operation of a batch distillation process. The program has been implemented on a Hewlett-Packard 9845T minicomputer and will be used as an instructional aid in a graduate level chemistry course. The program is very user interactive and is capable of using the final conditions from one run as the initial values of the next simulation. The batch simulation is achieved by using a tray-by-tray algorithm and is equipped with three integration techniques; the Euler, the Modified Euler and the 4th order Runge-Kutta methods. The program has the capability for studying the effect of all distillation operational parameters on the efficiency and selectivity in the separation of mixtures containing up to five components
