Optimization Analysis of Peakshaving Cycle to Liquefy the Natural Gas

摘要

In this paper, three kinds Peakshaving LNG cycles are optimized, namely nitrogen-methane expansion liquefaction cycle, propane pre-cooled mixed refrigerant liquefaction cycle, two stages mixed refrigerant liquefaction cycle. The three kind cycles are optimized with specific power consumption of unit LNG product as objective function. The optimum results are the optimum value of the objective function and the corresponding process parameters.