COMPUTER-SIMULATION OF THE WATER AND HYDROGEN DISTILLATION AND CECE PROCESS AND ITS EXPERIMENTAL-VERIFICATION

Mathematical simulation procedures have been developed for three proce sses of hydrogen isotopes separation: 1) a non steady-state water dist illation; 2) a cryogenic distillation; 3) combine electrolysis and mul tistage water/hydrogen catalytic exchange (CECE) process. The simulati on procedures possess some special features. Thus, the comparatively l arge step of integration and as a result of this high fast-acting is t he peculiarity of the model for the dynamic behaviour of water distill ation column operating at total reflux. The simulation procedure for C ECE process considers six components and three phases (liquid water, w ater vapour, and hydrogen gas) and allows to carry out computations fo r any mole fraction stock. This procedure, as the one for cryogenic di stillation process, is not based on the Newton-Raphson method, and, in spite of this, convergence is reached by a small number of iterations (4-11).