Study on the Optimization of MultipleEffect Evaporators With the Thermal Vapour Recompression for the Clarified Spent Wash

With the theory of large scale system optimization and on the case of the clarified spent wash， it is proved that according to the equal area design there is not the best solution on the multipleeffect evaporators with the steamjet vapour recompression． Two kinds of methods to solve the optimization of unequal area design are pointed out.