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应用ＰＲ状态方程和改进的混合规则对深冷净化精馏塔进行了模拟计算，得到了温度、压力、汽液相流率和组成沿金塔的分布数据．计算结果表明：改进的混合规则可用于低温含氢体系，其计算结果与文献设计值符合很好．
The PR state equation and the improved mixing rule were used to simulate the cryogenic purification distillation column. The distribution of temperature, pressure, vapor-liquid flow rate and composition along the column were obtained. The calculation results show that the improved mixing rule can be used in low temperature hydrogen-containing system. The calculated results are in good agreement with the literature design values.