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三组分热泵单塔空分流程的模拟与分析
Simulation and Analysis of a Ternary System Thermal Pump Single-column Air Separation Process

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三组分热泵单塔空分流程的模拟与分析.pdf (417.1Kb)
Date
2015-3-28
Author
刘燕
江青茵
曹志凯
师佳
周华
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  • 化学化工-已发表论文 [14237]
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Abstract
本研究组之前提出深冷空分装置的热泵单塔流程工艺(称热泵单塔空分流程),并对其进行稳态模拟研究.但该模拟仅以氧、氮二元组分为对象,为更好的与实际过程相符,本研究针对氧、氮、氩三元组分的热泵单塔空分流程进行模拟与分析.研究表明,氩的引入降低了流程的有效能效率和氧的提取率,同时使污氮侧线出料成为必要.在模拟的基础上还考察了塔板数、氧气的流量、污氮的侧线出料位置及流量等因素对该流程操作过程的影响.通过该部分研究工作,为热泵单塔空分工艺的工程化设计时塔板数、产品流量、侧线出料位置及流量等参数的确定提供了参考.
 
Novel thermal pump single-column air separation process was presented and simulated in our previous work.However,a mixture of nitrogen and oxygen was considered as a feed in previous steady-state simulation.To realize industrialization of this thermal pump single-column air separation process,oxygen,nitrogen and argon are included in the feedstock in this work.Our results indicate that energy efficiency and oxygen extraction yield of the thermal pump single-column air separation process are reduced with the addition of argon.The waste nitrogen side-stream becomes indispensable for the ternary feedstock.In addition,the effects of four factors,stages of the column,flow rate of oxygen,position of lateral line drawn for waste nitrogen and flow rate of waste nitrogen,on the process are investigated based on the simulation.The results of this study can provide data references for the engineering design of thermal pump single-column air separation process.
 
Citation
厦门大学学报(自然科学版),2015,(2):34-39
URI
https://dspace.xmu.edu.cn/handle/2288/107217

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