天然气是一种优质、洁净的能源，因其热值高、燃烧产物对环境污染少，被认为是二十一世纪的首选能源。小型天然气液化装置是国际上研究的一个热点。本文从小型液化流程装置的要求出发，提出小型天然气膨胀液化流程，并以液化单位千摩尔天然气的比功耗为系统性能评价指标，对影响比功耗的主要参数进行分析优化，为流程参数的选择提供理论指导。
Natural gas is cleaner high-quality energy for its high calorific value and little environmental pollution. Small natural gas liquefaction plant is a considerable interesting in the world. Based on the constraints of small natural gas equipment, a small-scale natural gas expansion liquefaction processes is proposed in this paper. The power consumption to liquid one kilo-molar natural gas is used as a system performance evaluation index to analysis and to optimize the liquefaction process. The research results can provide a theoretic guide to establish small-scale natural gas liquefaction facility.
参考文献
| [1] | 黄志光,汪荣顺,石玉美,顾安忠.小型天然气液化装置的研制现状与前景[J].低温工程,2002(06):59-62. |
| [2] | Coalbed methane liquefaction adopting a nitrogen expansion process with propane pre-cooling[J].Applied energy,2010(7):P.2142. |
| [3] | 李素燕 .小型氮气膨胀天然气液化流程数值模拟及增压透平膨胀机的设计[D].哈尔滨工业大学,2006. |
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