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化工学报  2014 

精馏型自复叠小型天然气液化系统配比优化

DOI: 10.3969/j.issn.0438-1157.2014.z2.025, PP. 169-174

Keywords: 混合工质,自复叠,液化天然气,优化

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Abstract:

中国非常规天然气资源极其丰富,小型天然气液化装置能有效地改善这些非常规天然气的开采现状,具有非常广阔的前景。采用HYSYS?软件对精馏型自复叠小型液化天然气系统进行了流程模拟计算,分析了系统中混合制冷剂组分对系统单位液化功、排气温度等性能的影响规律,并对混合制冷剂的配比进行了优化,得到了最佳配比。并分析了在该配比下系统3个回热器内3股流体的温度分布,说明了该配比下系统各方面性能均较佳的原因。

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