At the same times the model of the optimization to the liquefied process are given, the SUMT is used as the optimized method, combined with the constraints, the calculation result is good.

• 给出MRC液化流程的优化模型，并提出以惩罚函数法作为优化算法，结合各种约束条件，对流程进行了优化计算，效果良好；