| 小型氮膨胀天然气液化流程的设计及优化分析 |
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| 引用本文： | 李素燕,马彩凤,刘政委,程晓波.小型氮膨胀天然气液化流程的设计及优化分析[J].低温工程,2009(2). |
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| 作者姓名： | 李素燕 马彩凤 刘政委 程晓波 |
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| 作者单位： | 黑龙江科技学院,哈尔滨,150027 |
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| 摘 要： | 根据气源条件,设计了3套氮膨胀天然气液化流程,选择PR(Peng-Robinson)方程进行混合物的相平衡计算,采用大型数值模拟软件Aspen Plus进行了数值模拟计算;分析比较了不同液化流程的关键热力学参数,并进行了关键设备的可行性分析.结果表明:丙烷预冷氮膨胀液化天然气流程的比功耗比无预冷的单级氮膨胀天然气液化流程的低,比无预冷的两级氮膨胀天然气液化流程的稍高,两级氮膨胀天然气液化流程较难实现.综合分析结果,选用了丙烷预冷氮膨胀液化天然气流程.
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| 关 键 词： | 小型氮膨胀 天然气 液化流程 模拟分析 |
Optimal design and analysis on small-scale natural gas liquefaction in nitrogen expander cycle |
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| Li Suyan,Ma Caifeng,Liu Zhengwei,Cheng Xiaobo.Optimal design and analysis on small-scale natural gas liquefaction in nitrogen expander cycle[J].Cryogenics,2009(2). |
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| Authors: | Li Suyan Ma Caifeng Liu Zhengwei Cheng Xiaobo |
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| Affiliation: | Heilongjiang University of Science and Technology;Harbin 150027;China |
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| Abstract: | According to the gas source,three nitrogen expander liquefaction cycles for natural gas were designed.The PR(Peng-Robinson) equation was selected to calculate phase equilibrium of the mixture,the large-scale numerical simulation software Aspen Plus was used to simulate the difference nitrogen expander liquefaction cycles and the effects of some key thermodynamics parameters on liquefaction cycles were analyzed.The results show that the power waste of nitrogen expander liquefaction with propane pre-cooling i... |
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| Keywords: | small-scale nitrogen expander natural gas liquefaction cycle analysis |
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