那位朋友能帮我翻译下下面一段话？！在线等？ 采用aspen plus工程软件对我公司linde 51800nm3/h空分系统进行建模及调优。根据各流股的组成及低温条件，选用rks-bm及peng-rob状态方程作为计算的物性方法， linde 51800 nm3/h air separation unit of our company was modelled using aspen plus and optimized based on the simulations. rks-bm and peng-rob equations of state were selected as physical properties packages according to the compositions of process streams and cryogenic operations. 模拟过程中，发现初始模拟结果中上塔液氧的纯度一直达不到设计要求，于是对选择的物性方程及方程的二元交互参数做了修改，再在此基础上对回流比、污液氮的采出位置做了适当调整后，模拟结果与设计值比较接近。证明本次模拟是成功的，建立的模拟模型对生产操作有一定的指导意义。 initial simulation results showed that oxygen purity in 上塔 cannot meet the design requirment. binary interaction parameters of selected equations of state, together with reflux ratio and the position of side liquid nitrogen draw, were modified in such a way that simulation results are in close agreement with design specification. this proves that the simulation is successful and the established model can be used to guide practical operations. 通过本次空分系统的模拟，使我对空分精馏塔内部温度及各组分的浓度分布有了清楚的认识，同时也为我对该软件的进一步自学奠定了坚实的基础。 through the simulation of air separation unit, i obtained a deeper understanding of temperature and concentration profiles inside air separation distillation column. this study also laid a solid foundation for my further self-study of the software查看更多
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